rsaenh: CALG_AES cannot be used if the key length was not specified.
[wine.git] / dlls / rsaenh / rsaenh.c
blobb4829f010593565494701c8336a0f5d0b893b2af
1 /*
2 * dlls/rsaenh/rsaenh.c
3 * RSAENH - RSA encryption for Wine
5 * Copyright 2002 TransGaming Technologies (David Hammerton)
6 * Copyright 2004 Mike McCormack for CodeWeavers
7 * Copyright 2004, 2005 Michael Jung
8 * Copyright 2007 Vijay Kiran Kamuju
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
25 #include "config.h"
26 #include "wine/port.h"
27 #include "wine/library.h"
28 #include "wine/debug.h"
30 #include <stdarg.h>
31 #include <stdio.h>
33 #include "windef.h"
34 #include "winbase.h"
35 #include "winreg.h"
36 #include "wincrypt.h"
37 #include "handle.h"
38 #include "implglue.h"
39 #include "objbase.h"
40 #include "rpcproxy.h"
41 #include "aclapi.h"
43 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
45 static HINSTANCE instance;
47 /******************************************************************************
48 * CRYPTHASH - hash objects
50 #define RSAENH_MAGIC_HASH 0x85938417u
51 #define RSAENH_MAX_HASH_SIZE 104
52 #define RSAENH_HASHSTATE_HASHING 1
53 #define RSAENH_HASHSTATE_FINISHED 2
54 typedef struct _RSAENH_TLS1PRF_PARAMS
56 CRYPT_DATA_BLOB blobLabel;
57 CRYPT_DATA_BLOB blobSeed;
58 } RSAENH_TLS1PRF_PARAMS;
60 typedef struct tagCRYPTHASH
62 OBJECTHDR header;
63 ALG_ID aiAlgid;
64 HCRYPTKEY hKey;
65 HCRYPTPROV hProv;
66 DWORD dwHashSize;
67 DWORD dwState;
68 HASH_CONTEXT context;
69 BYTE abHashValue[RSAENH_MAX_HASH_SIZE];
70 PHMAC_INFO pHMACInfo;
71 RSAENH_TLS1PRF_PARAMS tpPRFParams;
72 } CRYPTHASH;
74 /******************************************************************************
75 * CRYPTKEY - key objects
77 #define RSAENH_MAGIC_KEY 0x73620457u
78 #define RSAENH_MAX_KEY_SIZE 64
79 #define RSAENH_MAX_BLOCK_SIZE 24
80 #define RSAENH_KEYSTATE_IDLE 0
81 #define RSAENH_KEYSTATE_ENCRYPTING 1
82 #define RSAENH_KEYSTATE_MASTERKEY 2
83 typedef struct _RSAENH_SCHANNEL_INFO
85 SCHANNEL_ALG saEncAlg;
86 SCHANNEL_ALG saMACAlg;
87 CRYPT_DATA_BLOB blobClientRandom;
88 CRYPT_DATA_BLOB blobServerRandom;
89 } RSAENH_SCHANNEL_INFO;
91 typedef struct tagCRYPTKEY
93 OBJECTHDR header;
94 ALG_ID aiAlgid;
95 HCRYPTPROV hProv;
96 DWORD dwMode;
97 DWORD dwModeBits;
98 DWORD dwPermissions;
99 DWORD dwKeyLen;
100 DWORD dwEffectiveKeyLen;
101 DWORD dwSaltLen;
102 DWORD dwBlockLen;
103 DWORD dwState;
104 KEY_CONTEXT context;
105 BYTE abKeyValue[RSAENH_MAX_KEY_SIZE];
106 BYTE abInitVector[RSAENH_MAX_BLOCK_SIZE];
107 BYTE abChainVector[RSAENH_MAX_BLOCK_SIZE];
108 RSAENH_SCHANNEL_INFO siSChannelInfo;
109 CRYPT_DATA_BLOB blobHmacKey;
110 } CRYPTKEY;
112 /******************************************************************************
113 * KEYCONTAINER - key containers
115 #define RSAENH_PERSONALITY_BASE 0u
116 #define RSAENH_PERSONALITY_STRONG 1u
117 #define RSAENH_PERSONALITY_ENHANCED 2u
118 #define RSAENH_PERSONALITY_SCHANNEL 3u
119 #define RSAENH_PERSONALITY_AES 4u
121 #define RSAENH_MAGIC_CONTAINER 0x26384993u
122 typedef struct tagKEYCONTAINER
124 OBJECTHDR header;
125 DWORD dwFlags;
126 DWORD dwPersonality;
127 DWORD dwEnumAlgsCtr;
128 DWORD dwEnumContainersCtr;
129 CHAR szName[MAX_PATH];
130 CHAR szProvName[MAX_PATH];
131 HCRYPTKEY hKeyExchangeKeyPair;
132 HCRYPTKEY hSignatureKeyPair;
133 } KEYCONTAINER;
135 /******************************************************************************
136 * Some magic constants
138 #define RSAENH_ENCRYPT 1
139 #define RSAENH_DECRYPT 0
140 #define RSAENH_HMAC_DEF_IPAD_CHAR 0x36
141 #define RSAENH_HMAC_DEF_OPAD_CHAR 0x5c
142 #define RSAENH_HMAC_DEF_PAD_LEN 64
143 #define RSAENH_HMAC_BLOCK_LEN 64
144 #define RSAENH_DES_EFFECTIVE_KEYLEN 56
145 #define RSAENH_DES_STORAGE_KEYLEN 64
146 #define RSAENH_3DES112_EFFECTIVE_KEYLEN 112
147 #define RSAENH_3DES112_STORAGE_KEYLEN 128
148 #define RSAENH_3DES_EFFECTIVE_KEYLEN 168
149 #define RSAENH_3DES_STORAGE_KEYLEN 192
150 #define RSAENH_MAGIC_RSA2 0x32415352
151 #define RSAENH_MAGIC_RSA1 0x31415352
152 #define RSAENH_PKC_BLOCKTYPE 0x02
153 #define RSAENH_SSL3_VERSION_MAJOR 3
154 #define RSAENH_SSL3_VERSION_MINOR 0
155 #define RSAENH_TLS1_VERSION_MAJOR 3
156 #define RSAENH_TLS1_VERSION_MINOR 1
157 #define RSAENH_REGKEY "Software\\Wine\\Crypto\\RSA\\%s"
159 #define RSAENH_MIN(a,b) ((a)<(b)?(a):(b))
160 /******************************************************************************
161 * aProvEnumAlgsEx - Defines the capabilities of the CSP personalities.
163 #define RSAENH_MAX_ENUMALGS 24
164 #define RSAENH_PCT1_SSL2_SSL3_TLS1 (CRYPT_FLAG_PCT1|CRYPT_FLAG_SSL2|CRYPT_FLAG_SSL3|CRYPT_FLAG_TLS1)
165 static const PROV_ENUMALGS_EX aProvEnumAlgsEx[5][RSAENH_MAX_ENUMALGS+1] =
168 {CALG_RC2, 40, 40, 56,0, 4,"RC2", 24,"RSA Data Security's RC2"},
169 {CALG_RC4, 40, 40, 56,0, 4,"RC4", 24,"RSA Data Security's RC4"},
170 {CALG_DES, 56, 56, 56,0, 4,"DES", 31,"Data Encryption Standard (DES)"},
171 {CALG_SHA, 160,160, 160,CRYPT_FLAG_SIGNING, 6,"SHA-1", 30,"Secure Hash Algorithm (SHA-1)"},
172 {CALG_MD2, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD2", 23,"Message Digest 2 (MD2)"},
173 {CALG_MD4, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD4", 23,"Message Digest 4 (MD4)"},
174 {CALG_MD5, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD5", 23,"Message Digest 5 (MD5)"},
175 {CALG_SSL3_SHAMD5,288,288,288,0, 12,"SSL3 SHAMD5",12,"SSL3 SHAMD5"},
176 {CALG_MAC, 0, 0, 0,0, 4,"MAC", 28,"Message Authentication Code"},
177 {CALG_RSA_SIGN, 512,384,16384,CRYPT_FLAG_SIGNING|CRYPT_FLAG_IPSEC,9,"RSA_SIGN",14,"RSA Signature"},
178 {CALG_RSA_KEYX, 512,384, 1024,CRYPT_FLAG_SIGNING|CRYPT_FLAG_IPSEC,9,"RSA_KEYX",17,"RSA Key Exchange"},
179 {CALG_HMAC, 0, 0, 0,0, 5,"HMAC", 18,"Hugo's MAC (HMAC)"},
180 {0, 0, 0, 0,0, 1,"", 1,""}
183 {CALG_RC2, 128, 40, 128,0, 4,"RC2", 24,"RSA Data Security's RC2"},
184 {CALG_RC4, 128, 40, 128,0, 4,"RC4", 24,"RSA Data Security's RC4"},
185 {CALG_DES, 56, 56, 56,0, 4,"DES", 31,"Data Encryption Standard (DES)"},
186 {CALG_3DES_112, 112,112, 112,0, 13,"3DES TWO KEY",19,"Two Key Triple DES"},
187 {CALG_3DES, 168,168, 168,0, 5,"3DES", 21,"Three Key Triple DES"},
188 {CALG_SHA, 160,160, 160,CRYPT_FLAG_SIGNING, 6,"SHA-1", 30,"Secure Hash Algorithm (SHA-1)"},
189 {CALG_MD2, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD2", 23,"Message Digest 2 (MD2)"},
190 {CALG_MD4, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD4", 23,"Message Digest 4 (MD4)"},
191 {CALG_MD5, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD5", 23,"Message Digest 5 (MD5)"},
192 {CALG_SSL3_SHAMD5,288,288,288,0, 12,"SSL3 SHAMD5",12,"SSL3 SHAMD5"},
193 {CALG_MAC, 0, 0, 0,0, 4,"MAC", 28,"Message Authentication Code"},
194 {CALG_RSA_SIGN,1024,384,16384,CRYPT_FLAG_SIGNING|CRYPT_FLAG_IPSEC,9,"RSA_SIGN",14,"RSA Signature"},
195 {CALG_RSA_KEYX,1024,384,16384,CRYPT_FLAG_SIGNING|CRYPT_FLAG_IPSEC,9,"RSA_KEYX",17,"RSA Key Exchange"},
196 {CALG_HMAC, 0, 0, 0,0, 5,"HMAC", 18,"Hugo's MAC (HMAC)"},
197 {0, 0, 0, 0,0, 1,"", 1,""}
200 {CALG_RC2, 128, 40, 128,0, 4,"RC2", 24,"RSA Data Security's RC2"},
201 {CALG_RC4, 128, 40, 128,0, 4,"RC4", 24,"RSA Data Security's RC4"},
202 {CALG_DES, 56, 56, 56,0, 4,"DES", 31,"Data Encryption Standard (DES)"},
203 {CALG_3DES_112, 112,112, 112,0, 13,"3DES TWO KEY",19,"Two Key Triple DES"},
204 {CALG_3DES, 168,168, 168,0, 5,"3DES", 21,"Three Key Triple DES"},
205 {CALG_SHA, 160,160, 160,CRYPT_FLAG_SIGNING, 6,"SHA-1", 30,"Secure Hash Algorithm (SHA-1)"},
206 {CALG_MD2, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD2", 23,"Message Digest 2 (MD2)"},
207 {CALG_MD4, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD4", 23,"Message Digest 4 (MD4)"},
208 {CALG_MD5, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD5", 23,"Message Digest 5 (MD5)"},
209 {CALG_SSL3_SHAMD5,288,288,288,0, 12,"SSL3 SHAMD5",12,"SSL3 SHAMD5"},
210 {CALG_MAC, 0, 0, 0,0, 4,"MAC", 28,"Message Authentication Code"},
211 {CALG_RSA_SIGN,1024,384,16384,CRYPT_FLAG_SIGNING|CRYPT_FLAG_IPSEC,9,"RSA_SIGN",14,"RSA Signature"},
212 {CALG_RSA_KEYX,1024,384,16384,CRYPT_FLAG_SIGNING|CRYPT_FLAG_IPSEC,9,"RSA_KEYX",17,"RSA Key Exchange"},
213 {CALG_HMAC, 0, 0, 0,0, 5,"HMAC", 18,"Hugo's MAC (HMAC)"},
214 {0, 0, 0, 0,0, 1,"", 1,""}
217 {CALG_RC2, 128, 40, 128,RSAENH_PCT1_SSL2_SSL3_TLS1, 4,"RC2", 24,"RSA Data Security's RC2"},
218 {CALG_RC4, 128, 40, 128,RSAENH_PCT1_SSL2_SSL3_TLS1, 4,"RC4", 24,"RSA Data Security's RC4"},
219 {CALG_DES, 56, 56, 56,RSAENH_PCT1_SSL2_SSL3_TLS1, 4,"DES", 31,"Data Encryption Standard (DES)"},
220 {CALG_3DES_112, 112,112, 112,RSAENH_PCT1_SSL2_SSL3_TLS1,13,"3DES TWO KEY",19,"Two Key Triple DES"},
221 {CALG_3DES, 168,168, 168,RSAENH_PCT1_SSL2_SSL3_TLS1, 5,"3DES", 21,"Three Key Triple DES"},
222 {CALG_SHA,160,160,160,CRYPT_FLAG_SIGNING|RSAENH_PCT1_SSL2_SSL3_TLS1,6,"SHA-1",30,"Secure Hash Algorithm (SHA-1)"},
223 {CALG_MD5,128,128,128,CRYPT_FLAG_SIGNING|RSAENH_PCT1_SSL2_SSL3_TLS1,4,"MD5",23,"Message Digest 5 (MD5)"},
224 {CALG_SSL3_SHAMD5,288,288,288,0, 12,"SSL3 SHAMD5",12,"SSL3 SHAMD5"},
225 {CALG_MAC, 0, 0, 0,0, 4,"MAC", 28,"Message Authentication Code"},
226 {CALG_RSA_SIGN,1024,384,16384,CRYPT_FLAG_SIGNING|RSAENH_PCT1_SSL2_SSL3_TLS1,9,"RSA_SIGN",14,"RSA Signature"},
227 {CALG_RSA_KEYX,1024,384,16384,CRYPT_FLAG_SIGNING|RSAENH_PCT1_SSL2_SSL3_TLS1,9,"RSA_KEYX",17,"RSA Key Exchange"},
228 {CALG_HMAC, 0, 0, 0,0, 5,"HMAC", 18,"Hugo's MAC (HMAC)"},
229 {CALG_PCT1_MASTER,128,128,128,CRYPT_FLAG_PCT1, 12,"PCT1 MASTER",12,"PCT1 Master"},
230 {CALG_SSL2_MASTER,40,40, 192,CRYPT_FLAG_SSL2, 12,"SSL2 MASTER",12,"SSL2 Master"},
231 {CALG_SSL3_MASTER,384,384,384,CRYPT_FLAG_SSL3, 12,"SSL3 MASTER",12,"SSL3 Master"},
232 {CALG_TLS1_MASTER,384,384,384,CRYPT_FLAG_TLS1, 12,"TLS1 MASTER",12,"TLS1 Master"},
233 {CALG_SCHANNEL_MASTER_HASH,0,0,-1,0, 16,"SCH MASTER HASH",21,"SChannel Master Hash"},
234 {CALG_SCHANNEL_MAC_KEY,0,0,-1,0, 12,"SCH MAC KEY",17,"SChannel MAC Key"},
235 {CALG_SCHANNEL_ENC_KEY,0,0,-1,0, 12,"SCH ENC KEY",24,"SChannel Encryption Key"},
236 {CALG_TLS1PRF, 0, 0, -1,0, 9,"TLS1 PRF", 28,"TLS1 Pseudo Random Function"},
237 {0, 0, 0, 0,0, 1,"", 1,""}
240 {CALG_RC2, 128, 40, 128,0, 4,"RC2", 24,"RSA Data Security's RC2"},
241 {CALG_RC4, 128, 40, 128,0, 4,"RC4", 24,"RSA Data Security's RC4"},
242 {CALG_DES, 56, 56, 56,0, 4,"DES", 31,"Data Encryption Standard (DES)"},
243 {CALG_3DES_112, 112,112, 112,0, 13,"3DES TWO KEY",19,"Two Key Triple DES"},
244 {CALG_3DES, 168,168, 168,0, 5,"3DES", 21,"Three Key Triple DES"},
245 {CALG_AES, 128,128, 128,0, 4,"AES", 35,"Advanced Encryption Standard (AES)"},
246 {CALG_AES_128, 128,128, 128,0, 8,"AES-128", 39,"Advanced Encryption Standard (AES-128)"},
247 {CALG_AES_192, 192,192, 192,0, 8,"AES-192", 39,"Advanced Encryption Standard (AES-192)"},
248 {CALG_AES_256, 256,256, 256,0, 8,"AES-256", 39,"Advanced Encryption Standard (AES-256)"},
249 {CALG_SHA, 160,160, 160,CRYPT_FLAG_SIGNING, 6,"SHA-1", 30,"Secure Hash Algorithm (SHA-1)"},
250 {CALG_SHA_256, 256,256, 256,CRYPT_FLAG_SIGNING, 6,"SHA-256", 30,"Secure Hash Algorithm (SHA-256)"},
251 {CALG_SHA_384, 384,384, 384,CRYPT_FLAG_SIGNING, 6,"SHA-384", 30,"Secure Hash Algorithm (SHA-284)"},
252 {CALG_SHA_512, 512,512, 512,CRYPT_FLAG_SIGNING, 6,"SHA-512", 30,"Secure Hash Algorithm (SHA-512)"},
253 {CALG_MD2, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD2", 23,"Message Digest 2 (MD2)"},
254 {CALG_MD4, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD4", 23,"Message Digest 4 (MD4)"},
255 {CALG_MD5, 128,128, 128,CRYPT_FLAG_SIGNING, 4,"MD5", 23,"Message Digest 5 (MD5)"},
256 {CALG_SSL3_SHAMD5,288,288,288,0, 12,"SSL3 SHAMD5",12,"SSL3 SHAMD5"},
257 {CALG_MAC, 0, 0, 0,0, 4,"MAC", 28,"Message Authentication Code"},
258 {CALG_RSA_SIGN,1024,384,16384,CRYPT_FLAG_SIGNING|CRYPT_FLAG_IPSEC,9,"RSA_SIGN",14,"RSA Signature"},
259 {CALG_RSA_KEYX,1024,384,16384,CRYPT_FLAG_SIGNING|CRYPT_FLAG_IPSEC,9,"RSA_KEYX",17,"RSA Key Exchange"},
260 {CALG_HMAC, 0, 0, 0,0, 5,"HMAC", 18,"Hugo's MAC (HMAC)"},
261 {0, 0, 0, 0,0, 1,"", 1,""}
265 /******************************************************************************
266 * API forward declarations
268 BOOL WINAPI
269 RSAENH_CPGetKeyParam(
270 HCRYPTPROV hProv,
271 HCRYPTKEY hKey,
272 DWORD dwParam,
273 BYTE *pbData,
274 DWORD *pdwDataLen,
275 DWORD dwFlags
278 BOOL WINAPI
279 RSAENH_CPEncrypt(
280 HCRYPTPROV hProv,
281 HCRYPTKEY hKey,
282 HCRYPTHASH hHash,
283 BOOL Final,
284 DWORD dwFlags,
285 BYTE *pbData,
286 DWORD *pdwDataLen,
287 DWORD dwBufLen
290 BOOL WINAPI
291 RSAENH_CPCreateHash(
292 HCRYPTPROV hProv,
293 ALG_ID Algid,
294 HCRYPTKEY hKey,
295 DWORD dwFlags,
296 HCRYPTHASH *phHash
299 BOOL WINAPI
300 RSAENH_CPSetHashParam(
301 HCRYPTPROV hProv,
302 HCRYPTHASH hHash,
303 DWORD dwParam,
304 BYTE *pbData, DWORD dwFlags
307 BOOL WINAPI
308 RSAENH_CPGetHashParam(
309 HCRYPTPROV hProv,
310 HCRYPTHASH hHash,
311 DWORD dwParam,
312 BYTE *pbData,
313 DWORD *pdwDataLen,
314 DWORD dwFlags
317 BOOL WINAPI
318 RSAENH_CPDestroyHash(
319 HCRYPTPROV hProv,
320 HCRYPTHASH hHash
323 static BOOL crypt_export_key(
324 CRYPTKEY *pCryptKey,
325 HCRYPTKEY hPubKey,
326 DWORD dwBlobType,
327 DWORD dwFlags,
328 BOOL force,
329 BYTE *pbData,
330 DWORD *pdwDataLen
333 static BOOL import_key(
334 HCRYPTPROV hProv,
335 const BYTE *pbData,
336 DWORD dwDataLen,
337 HCRYPTKEY hPubKey,
338 DWORD dwFlags,
339 BOOL fStoreKey,
340 HCRYPTKEY *phKey
343 BOOL WINAPI
344 RSAENH_CPHashData(
345 HCRYPTPROV hProv,
346 HCRYPTHASH hHash,
347 const BYTE *pbData,
348 DWORD dwDataLen,
349 DWORD dwFlags
352 /******************************************************************************
353 * CSP's handle table (used by all acquired key containers)
355 static struct handle_table handle_table;
357 /******************************************************************************
358 * DllMain (RSAENH.@)
360 * Initializes and destroys the handle table for the CSP's handles.
362 BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD fdwReason, PVOID reserved)
364 switch (fdwReason)
366 case DLL_PROCESS_ATTACH:
367 instance = hInstance;
368 DisableThreadLibraryCalls(hInstance);
369 init_handle_table(&handle_table);
370 break;
372 case DLL_PROCESS_DETACH:
373 if (reserved) break;
374 destroy_handle_table(&handle_table);
375 break;
377 return TRUE;
380 /******************************************************************************
381 * copy_param [Internal]
383 * Helper function that supports the standard WINAPI protocol for querying data
384 * of dynamic size.
386 * PARAMS
387 * pbBuffer [O] Buffer where the queried parameter is copied to, if it is large enough.
388 * May be NUL if the required buffer size is to be queried only.
389 * pdwBufferSize [I/O] In: Size of the buffer at pbBuffer
390 * Out: Size of parameter pbParam
391 * pbParam [I] Parameter value.
392 * dwParamSize [I] Size of pbParam
394 * RETURN
395 * Success: TRUE (pbParam was copied into pbBuffer or pbBuffer is NULL)
396 * Failure: FALSE (pbBuffer is not large enough to hold pbParam). Last error: ERROR_MORE_DATA
398 static inline BOOL copy_param(BYTE *pbBuffer, DWORD *pdwBufferSize, const BYTE *pbParam,
399 DWORD dwParamSize)
401 if (pbBuffer)
403 if (dwParamSize > *pdwBufferSize)
405 SetLastError(ERROR_MORE_DATA);
406 *pdwBufferSize = dwParamSize;
407 return FALSE;
409 memcpy(pbBuffer, pbParam, dwParamSize);
411 *pdwBufferSize = dwParamSize;
412 return TRUE;
415 /******************************************************************************
416 * get_algid_info [Internal]
418 * Query CSP capabilities for a given crypto algorithm.
420 * PARAMS
421 * hProv [I] Handle to a key container of the CSP whose capabilities are to be queried.
422 * algid [I] Identifier of the crypto algorithm about which information is requested.
424 * RETURNS
425 * Success: Pointer to a PROV_ENUMALGS_EX struct containing information about the crypto algorithm.
426 * Failure: NULL (algid not supported)
428 static inline const PROV_ENUMALGS_EX* get_algid_info(HCRYPTPROV hProv, ALG_ID algid) {
429 const PROV_ENUMALGS_EX *iterator;
430 KEYCONTAINER *pKeyContainer;
432 if (!lookup_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER, (OBJECTHDR**)&pKeyContainer)) {
433 SetLastError(NTE_BAD_UID);
434 return NULL;
437 for (iterator = aProvEnumAlgsEx[pKeyContainer->dwPersonality]; iterator->aiAlgid; iterator++) {
438 if (iterator->aiAlgid == algid) return iterator;
441 SetLastError(NTE_BAD_ALGID);
442 return NULL;
445 /******************************************************************************
446 * copy_data_blob [Internal]
448 * deeply copies a DATA_BLOB
450 * PARAMS
451 * dst [O] That's where the blob will be copied to
452 * src [I] Source blob
454 * RETURNS
455 * Success: TRUE
456 * Failure: FALSE (GetLastError() == NTE_NO_MEMORY
458 * NOTES
459 * Use free_data_blob to release resources occupied by copy_data_blob.
461 static inline BOOL copy_data_blob(PCRYPT_DATA_BLOB dst, const PCRYPT_DATA_BLOB src)
463 dst->pbData = HeapAlloc(GetProcessHeap(), 0, src->cbData);
464 if (!dst->pbData) {
465 SetLastError(NTE_NO_MEMORY);
466 return FALSE;
468 dst->cbData = src->cbData;
469 memcpy(dst->pbData, src->pbData, src->cbData);
470 return TRUE;
473 /******************************************************************************
474 * concat_data_blobs [Internal]
476 * Concatenates two blobs
478 * PARAMS
479 * dst [O] The new blob will be copied here
480 * src1 [I] Prefix blob
481 * src2 [I] Appendix blob
483 * RETURNS
484 * Success: TRUE
485 * Failure: FALSE (GetLastError() == NTE_NO_MEMORY)
487 * NOTES
488 * Release resources occupied by concat_data_blobs with free_data_blobs
490 static inline BOOL concat_data_blobs(PCRYPT_DATA_BLOB dst, const PCRYPT_DATA_BLOB src1,
491 const PCRYPT_DATA_BLOB src2)
493 dst->cbData = src1->cbData + src2->cbData;
494 dst->pbData = HeapAlloc(GetProcessHeap(), 0, dst->cbData);
495 if (!dst->pbData) {
496 SetLastError(NTE_NO_MEMORY);
497 return FALSE;
499 memcpy(dst->pbData, src1->pbData, src1->cbData);
500 memcpy(dst->pbData + src1->cbData, src2->pbData, src2->cbData);
501 return TRUE;
504 /******************************************************************************
505 * free_data_blob [Internal]
507 * releases resource occupied by a dynamically allocated CRYPT_DATA_BLOB
509 * PARAMS
510 * pBlob [I] Heap space occupied by pBlob->pbData is released
512 static inline void free_data_blob(PCRYPT_DATA_BLOB pBlob) {
513 HeapFree(GetProcessHeap(), 0, pBlob->pbData);
516 /******************************************************************************
517 * init_data_blob [Internal]
519 static inline void init_data_blob(PCRYPT_DATA_BLOB pBlob) {
520 pBlob->pbData = NULL;
521 pBlob->cbData = 0;
524 /******************************************************************************
525 * free_hmac_info [Internal]
527 * Deeply free an HMAC_INFO struct.
529 * PARAMS
530 * hmac_info [I] Pointer to the HMAC_INFO struct to be freed.
532 * NOTES
533 * See Internet RFC 2104 for details on the HMAC algorithm.
535 static inline void free_hmac_info(PHMAC_INFO hmac_info) {
536 if (!hmac_info) return;
537 HeapFree(GetProcessHeap(), 0, hmac_info->pbInnerString);
538 HeapFree(GetProcessHeap(), 0, hmac_info->pbOuterString);
539 HeapFree(GetProcessHeap(), 0, hmac_info);
542 /******************************************************************************
543 * copy_hmac_info [Internal]
545 * Deeply copy an HMAC_INFO struct
547 * PARAMS
548 * dst [O] Pointer to a location where the pointer to the HMAC_INFO copy will be stored.
549 * src [I] Pointer to the HMAC_INFO struct to be copied.
551 * RETURNS
552 * Success: TRUE
553 * Failure: FALSE
555 * NOTES
556 * See Internet RFC 2104 for details on the HMAC algorithm.
558 static BOOL copy_hmac_info(PHMAC_INFO *dst, const HMAC_INFO *src) {
559 if (!src) return FALSE;
560 *dst = HeapAlloc(GetProcessHeap(), 0, sizeof(HMAC_INFO));
561 if (!*dst) return FALSE;
562 **dst = *src;
563 (*dst)->pbInnerString = NULL;
564 (*dst)->pbOuterString = NULL;
565 if ((*dst)->cbInnerString == 0) (*dst)->cbInnerString = RSAENH_HMAC_DEF_PAD_LEN;
566 (*dst)->pbInnerString = HeapAlloc(GetProcessHeap(), 0, (*dst)->cbInnerString);
567 if (!(*dst)->pbInnerString) {
568 free_hmac_info(*dst);
569 return FALSE;
571 if (src->cbInnerString)
572 memcpy((*dst)->pbInnerString, src->pbInnerString, src->cbInnerString);
573 else
574 memset((*dst)->pbInnerString, RSAENH_HMAC_DEF_IPAD_CHAR, RSAENH_HMAC_DEF_PAD_LEN);
575 if ((*dst)->cbOuterString == 0) (*dst)->cbOuterString = RSAENH_HMAC_DEF_PAD_LEN;
576 (*dst)->pbOuterString = HeapAlloc(GetProcessHeap(), 0, (*dst)->cbOuterString);
577 if (!(*dst)->pbOuterString) {
578 free_hmac_info(*dst);
579 return FALSE;
581 if (src->cbOuterString)
582 memcpy((*dst)->pbOuterString, src->pbOuterString, src->cbOuterString);
583 else
584 memset((*dst)->pbOuterString, RSAENH_HMAC_DEF_OPAD_CHAR, RSAENH_HMAC_DEF_PAD_LEN);
585 return TRUE;
588 /******************************************************************************
589 * destroy_hash [Internal]
591 * Destructor for hash objects
593 * PARAMS
594 * pCryptHash [I] Pointer to the hash object to be destroyed.
595 * Will be invalid after function returns!
597 static void destroy_hash(OBJECTHDR *pObject)
599 CRYPTHASH *pCryptHash = (CRYPTHASH*)pObject;
601 free_hmac_info(pCryptHash->pHMACInfo);
602 free_data_blob(&pCryptHash->tpPRFParams.blobLabel);
603 free_data_blob(&pCryptHash->tpPRFParams.blobSeed);
604 HeapFree(GetProcessHeap(), 0, pCryptHash);
607 /******************************************************************************
608 * init_hash [Internal]
610 * Initialize (or reset) a hash object
612 * PARAMS
613 * pCryptHash [I] The hash object to be initialized.
615 static inline BOOL init_hash(CRYPTHASH *pCryptHash) {
616 DWORD dwLen;
618 switch (pCryptHash->aiAlgid)
620 case CALG_HMAC:
621 if (pCryptHash->pHMACInfo) {
622 const PROV_ENUMALGS_EX *pAlgInfo;
624 pAlgInfo = get_algid_info(pCryptHash->hProv, pCryptHash->pHMACInfo->HashAlgid);
625 if (!pAlgInfo) return FALSE;
626 pCryptHash->dwHashSize = pAlgInfo->dwDefaultLen >> 3;
627 init_hash_impl(pCryptHash->pHMACInfo->HashAlgid, &pCryptHash->context);
628 update_hash_impl(pCryptHash->pHMACInfo->HashAlgid, &pCryptHash->context,
629 pCryptHash->pHMACInfo->pbInnerString,
630 pCryptHash->pHMACInfo->cbInnerString);
632 return TRUE;
634 case CALG_MAC:
635 dwLen = sizeof(DWORD);
636 RSAENH_CPGetKeyParam(pCryptHash->hProv, pCryptHash->hKey, KP_BLOCKLEN,
637 (BYTE*)&pCryptHash->dwHashSize, &dwLen, 0);
638 pCryptHash->dwHashSize >>= 3;
639 return TRUE;
641 default:
642 return init_hash_impl(pCryptHash->aiAlgid, &pCryptHash->context);
646 /******************************************************************************
647 * update_hash [Internal]
649 * Hashes the given data and updates the hash object's state accordingly
651 * PARAMS
652 * pCryptHash [I] Hash object to be updated.
653 * pbData [I] Pointer to data stream to be hashed.
654 * dwDataLen [I] Length of data stream.
656 static inline void update_hash(CRYPTHASH *pCryptHash, const BYTE *pbData, DWORD dwDataLen)
658 BYTE *pbTemp;
660 switch (pCryptHash->aiAlgid)
662 case CALG_HMAC:
663 if (pCryptHash->pHMACInfo)
664 update_hash_impl(pCryptHash->pHMACInfo->HashAlgid, &pCryptHash->context,
665 pbData, dwDataLen);
666 break;
668 case CALG_MAC:
669 pbTemp = HeapAlloc(GetProcessHeap(), 0, dwDataLen);
670 if (!pbTemp) return;
671 memcpy(pbTemp, pbData, dwDataLen);
672 RSAENH_CPEncrypt(pCryptHash->hProv, pCryptHash->hKey, 0, FALSE, 0,
673 pbTemp, &dwDataLen, dwDataLen);
674 HeapFree(GetProcessHeap(), 0, pbTemp);
675 break;
677 default:
678 update_hash_impl(pCryptHash->aiAlgid, &pCryptHash->context, pbData, dwDataLen);
682 /******************************************************************************
683 * finalize_hash [Internal]
685 * Finalizes the hash, after all data has been hashed with update_hash.
686 * No additional data can be hashed afterwards until the hash gets initialized again.
688 * PARAMS
689 * pCryptHash [I] Hash object to be finalized.
691 static inline void finalize_hash(CRYPTHASH *pCryptHash) {
692 DWORD dwDataLen;
694 switch (pCryptHash->aiAlgid)
696 case CALG_HMAC:
697 if (pCryptHash->pHMACInfo) {
698 BYTE abHashValue[RSAENH_MAX_HASH_SIZE];
700 finalize_hash_impl(pCryptHash->pHMACInfo->HashAlgid, &pCryptHash->context,
701 pCryptHash->abHashValue);
702 memcpy(abHashValue, pCryptHash->abHashValue, pCryptHash->dwHashSize);
703 init_hash_impl(pCryptHash->pHMACInfo->HashAlgid, &pCryptHash->context);
704 update_hash_impl(pCryptHash->pHMACInfo->HashAlgid, &pCryptHash->context,
705 pCryptHash->pHMACInfo->pbOuterString,
706 pCryptHash->pHMACInfo->cbOuterString);
707 update_hash_impl(pCryptHash->pHMACInfo->HashAlgid, &pCryptHash->context,
708 abHashValue, pCryptHash->dwHashSize);
709 finalize_hash_impl(pCryptHash->pHMACInfo->HashAlgid, &pCryptHash->context,
710 pCryptHash->abHashValue);
712 break;
714 case CALG_MAC:
715 dwDataLen = 0;
716 RSAENH_CPEncrypt(pCryptHash->hProv, pCryptHash->hKey, 0, TRUE, 0,
717 pCryptHash->abHashValue, &dwDataLen, pCryptHash->dwHashSize);
718 break;
720 default:
721 finalize_hash_impl(pCryptHash->aiAlgid, &pCryptHash->context, pCryptHash->abHashValue);
725 /******************************************************************************
726 * destroy_key [Internal]
728 * Destructor for key objects
730 * PARAMS
731 * pCryptKey [I] Pointer to the key object to be destroyed.
732 * Will be invalid after function returns!
734 static void destroy_key(OBJECTHDR *pObject)
736 CRYPTKEY *pCryptKey = (CRYPTKEY*)pObject;
738 free_key_impl(pCryptKey->aiAlgid, &pCryptKey->context);
739 free_data_blob(&pCryptKey->siSChannelInfo.blobClientRandom);
740 free_data_blob(&pCryptKey->siSChannelInfo.blobServerRandom);
741 free_data_blob(&pCryptKey->blobHmacKey);
742 HeapFree(GetProcessHeap(), 0, pCryptKey);
745 /******************************************************************************
746 * setup_key [Internal]
748 * Initialize (or reset) a key object
750 * PARAMS
751 * pCryptKey [I] The key object to be initialized.
753 static inline void setup_key(CRYPTKEY *pCryptKey) {
754 pCryptKey->dwState = RSAENH_KEYSTATE_IDLE;
755 memcpy(pCryptKey->abChainVector, pCryptKey->abInitVector, sizeof(pCryptKey->abChainVector));
756 setup_key_impl(pCryptKey->aiAlgid, &pCryptKey->context, pCryptKey->dwKeyLen,
757 pCryptKey->dwEffectiveKeyLen, pCryptKey->dwSaltLen,
758 pCryptKey->abKeyValue);
761 /******************************************************************************
762 * new_key [Internal]
764 * Creates a new key object without assigning the actual binary key value.
765 * This is done by CPDeriveKey, CPGenKey or CPImportKey, which call this function.
767 * PARAMS
768 * hProv [I] Handle to the provider to which the created key will belong.
769 * aiAlgid [I] The new key shall use the crypto algorithm identified by aiAlgid.
770 * dwFlags [I] Upper 16 bits give the key length.
771 * Lower 16 bits: CRYPT_EXPORTABLE, CRYPT_CREATE_SALT,
772 * CRYPT_NO_SALT
773 * ppCryptKey [O] Pointer to the created key
775 * RETURNS
776 * Success: Handle to the created key.
777 * Failure: INVALID_HANDLE_VALUE
779 static HCRYPTKEY new_key(HCRYPTPROV hProv, ALG_ID aiAlgid, DWORD dwFlags, CRYPTKEY **ppCryptKey)
781 HCRYPTKEY hCryptKey;
782 CRYPTKEY *pCryptKey;
783 DWORD dwKeyLen = HIWORD(dwFlags), bKeyLen = dwKeyLen;
784 const PROV_ENUMALGS_EX *peaAlgidInfo;
786 *ppCryptKey = NULL;
789 * Retrieve the CSP's capabilities for the given ALG_ID value
791 peaAlgidInfo = get_algid_info(hProv, aiAlgid);
792 if (!peaAlgidInfo) return (HCRYPTKEY)INVALID_HANDLE_VALUE;
794 TRACE("alg = %s, dwKeyLen = %d\n", debugstr_a(peaAlgidInfo->szName),
795 dwKeyLen);
797 * Assume the default key length, if none is specified explicitly
799 if (dwKeyLen == 0) dwKeyLen = peaAlgidInfo->dwDefaultLen;
802 * Check if the requested key length is supported by the current CSP.
803 * Adjust key length's for DES algorithms.
805 switch (aiAlgid) {
806 case CALG_DES:
807 if (dwKeyLen == RSAENH_DES_EFFECTIVE_KEYLEN) {
808 dwKeyLen = RSAENH_DES_STORAGE_KEYLEN;
810 if (dwKeyLen != RSAENH_DES_STORAGE_KEYLEN) {
811 SetLastError(NTE_BAD_FLAGS);
812 return (HCRYPTKEY)INVALID_HANDLE_VALUE;
814 break;
816 case CALG_3DES_112:
817 if (dwKeyLen == RSAENH_3DES112_EFFECTIVE_KEYLEN) {
818 dwKeyLen = RSAENH_3DES112_STORAGE_KEYLEN;
820 if (dwKeyLen != RSAENH_3DES112_STORAGE_KEYLEN) {
821 SetLastError(NTE_BAD_FLAGS);
822 return (HCRYPTKEY)INVALID_HANDLE_VALUE;
824 break;
826 case CALG_3DES:
827 if (dwKeyLen == RSAENH_3DES_EFFECTIVE_KEYLEN) {
828 dwKeyLen = RSAENH_3DES_STORAGE_KEYLEN;
830 if (dwKeyLen != RSAENH_3DES_STORAGE_KEYLEN) {
831 SetLastError(NTE_BAD_FLAGS);
832 return (HCRYPTKEY)INVALID_HANDLE_VALUE;
834 break;
836 case CALG_HMAC:
837 /* Avoid the key length check for HMAC keys, which have unlimited
838 * length.
840 break;
842 case CALG_AES:
843 if (!bKeyLen)
845 TRACE("missing key len for CALG_AES\n");
846 SetLastError(NTE_BAD_ALGID);
847 return (HCRYPTKEY)INVALID_HANDLE_VALUE;
849 /* fall through */
850 default:
851 if (dwKeyLen % 8 ||
852 dwKeyLen > peaAlgidInfo->dwMaxLen ||
853 dwKeyLen < peaAlgidInfo->dwMinLen)
855 TRACE("key len %d out of bounds (%d, %d)\n", dwKeyLen,
856 peaAlgidInfo->dwMinLen, peaAlgidInfo->dwMaxLen);
857 SetLastError(NTE_BAD_DATA);
858 return (HCRYPTKEY)INVALID_HANDLE_VALUE;
862 hCryptKey = new_object(&handle_table, sizeof(CRYPTKEY), RSAENH_MAGIC_KEY,
863 destroy_key, (OBJECTHDR**)&pCryptKey);
864 if (hCryptKey != (HCRYPTKEY)INVALID_HANDLE_VALUE)
866 pCryptKey->aiAlgid = aiAlgid;
867 pCryptKey->hProv = hProv;
868 pCryptKey->dwModeBits = 0;
869 pCryptKey->dwPermissions = CRYPT_ENCRYPT | CRYPT_DECRYPT | CRYPT_READ | CRYPT_WRITE |
870 CRYPT_MAC;
871 if (dwFlags & CRYPT_EXPORTABLE)
872 pCryptKey->dwPermissions |= CRYPT_EXPORT;
873 pCryptKey->dwKeyLen = dwKeyLen >> 3;
874 pCryptKey->dwEffectiveKeyLen = 0;
875 if ((dwFlags & CRYPT_CREATE_SALT) || (dwKeyLen == 40 && !(dwFlags & CRYPT_NO_SALT)))
876 pCryptKey->dwSaltLen = 16 /*FIXME*/ - pCryptKey->dwKeyLen;
877 else
878 pCryptKey->dwSaltLen = 0;
879 memset(pCryptKey->abKeyValue, 0, sizeof(pCryptKey->abKeyValue));
880 memset(pCryptKey->abInitVector, 0, sizeof(pCryptKey->abInitVector));
881 memset(&pCryptKey->siSChannelInfo.saEncAlg, 0, sizeof(pCryptKey->siSChannelInfo.saEncAlg));
882 memset(&pCryptKey->siSChannelInfo.saMACAlg, 0, sizeof(pCryptKey->siSChannelInfo.saMACAlg));
883 init_data_blob(&pCryptKey->siSChannelInfo.blobClientRandom);
884 init_data_blob(&pCryptKey->siSChannelInfo.blobServerRandom);
885 init_data_blob(&pCryptKey->blobHmacKey);
887 switch(aiAlgid)
889 case CALG_PCT1_MASTER:
890 case CALG_SSL2_MASTER:
891 case CALG_SSL3_MASTER:
892 case CALG_TLS1_MASTER:
893 case CALG_RC4:
894 pCryptKey->dwBlockLen = 0;
895 pCryptKey->dwMode = 0;
896 break;
898 case CALG_RC2:
899 case CALG_DES:
900 case CALG_3DES_112:
901 case CALG_3DES:
902 pCryptKey->dwBlockLen = 8;
903 pCryptKey->dwMode = CRYPT_MODE_CBC;
904 break;
906 case CALG_AES:
907 case CALG_AES_128:
908 case CALG_AES_192:
909 case CALG_AES_256:
910 pCryptKey->dwBlockLen = 16;
911 pCryptKey->dwMode = CRYPT_MODE_CBC;
912 break;
914 case CALG_RSA_KEYX:
915 case CALG_RSA_SIGN:
916 pCryptKey->dwBlockLen = dwKeyLen >> 3;
917 pCryptKey->dwMode = 0;
918 break;
920 case CALG_HMAC:
921 pCryptKey->dwBlockLen = 0;
922 pCryptKey->dwMode = 0;
923 break;
926 *ppCryptKey = pCryptKey;
929 return hCryptKey;
932 /******************************************************************************
933 * map_key_spec_to_key_pair_name [Internal]
935 * Returns the name of the registry value associated with a key spec.
937 * PARAMS
938 * dwKeySpec [I] AT_KEYEXCHANGE or AT_SIGNATURE
940 * RETURNS
941 * Success: Name of registry value.
942 * Failure: NULL
944 static LPCSTR map_key_spec_to_key_pair_name(DWORD dwKeySpec)
946 LPCSTR szValueName;
948 switch (dwKeySpec)
950 case AT_KEYEXCHANGE:
951 szValueName = "KeyExchangeKeyPair";
952 break;
953 case AT_SIGNATURE:
954 szValueName = "SignatureKeyPair";
955 break;
956 default:
957 WARN("invalid key spec %d\n", dwKeySpec);
958 szValueName = NULL;
960 return szValueName;
963 /******************************************************************************
964 * store_key_pair [Internal]
966 * Stores a key pair to the registry
968 * PARAMS
969 * hCryptKey [I] Handle to the key to be stored
970 * hKey [I] Registry key where the key pair is to be stored
971 * dwKeySpec [I] AT_KEYEXCHANGE or AT_SIGNATURE
972 * dwFlags [I] Flags for protecting the key
974 static void store_key_pair(HCRYPTKEY hCryptKey, HKEY hKey, DWORD dwKeySpec, DWORD dwFlags)
976 LPCSTR szValueName;
977 DATA_BLOB blobIn, blobOut;
978 CRYPTKEY *pKey;
979 DWORD dwLen;
980 BYTE *pbKey;
982 if (!(szValueName = map_key_spec_to_key_pair_name(dwKeySpec)))
983 return;
984 if (lookup_handle(&handle_table, hCryptKey, RSAENH_MAGIC_KEY,
985 (OBJECTHDR**)&pKey))
987 if (crypt_export_key(pKey, 0, PRIVATEKEYBLOB, 0, TRUE, 0, &dwLen))
989 pbKey = HeapAlloc(GetProcessHeap(), 0, dwLen);
990 if (pbKey)
992 if (crypt_export_key(pKey, 0, PRIVATEKEYBLOB, 0, TRUE, pbKey,
993 &dwLen))
995 blobIn.pbData = pbKey;
996 blobIn.cbData = dwLen;
998 if (CryptProtectData(&blobIn, NULL, NULL, NULL, NULL,
999 dwFlags, &blobOut))
1001 RegSetValueExA(hKey, szValueName, 0, REG_BINARY,
1002 blobOut.pbData, blobOut.cbData);
1003 LocalFree(blobOut.pbData);
1006 HeapFree(GetProcessHeap(), 0, pbKey);
1012 /******************************************************************************
1013 * map_key_spec_to_permissions_name [Internal]
1015 * Returns the name of the registry value associated with the permissions for
1016 * a key spec.
1018 * PARAMS
1019 * dwKeySpec [I] AT_KEYEXCHANGE or AT_SIGNATURE
1021 * RETURNS
1022 * Success: Name of registry value.
1023 * Failure: NULL
1025 static LPCSTR map_key_spec_to_permissions_name(DWORD dwKeySpec)
1027 LPCSTR szValueName;
1029 switch (dwKeySpec)
1031 case AT_KEYEXCHANGE:
1032 szValueName = "KeyExchangePermissions";
1033 break;
1034 case AT_SIGNATURE:
1035 szValueName = "SignaturePermissions";
1036 break;
1037 default:
1038 WARN("invalid key spec %d\n", dwKeySpec);
1039 szValueName = NULL;
1041 return szValueName;
1044 /******************************************************************************
1045 * store_key_permissions [Internal]
1047 * Stores a key's permissions to the registry
1049 * PARAMS
1050 * hCryptKey [I] Handle to the key whose permissions are to be stored
1051 * hKey [I] Registry key where the key permissions are to be stored
1052 * dwKeySpec [I] AT_KEYEXCHANGE or AT_SIGNATURE
1054 static void store_key_permissions(HCRYPTKEY hCryptKey, HKEY hKey, DWORD dwKeySpec)
1056 LPCSTR szValueName;
1057 CRYPTKEY *pKey;
1059 if (!(szValueName = map_key_spec_to_permissions_name(dwKeySpec)))
1060 return;
1061 if (lookup_handle(&handle_table, hCryptKey, RSAENH_MAGIC_KEY,
1062 (OBJECTHDR**)&pKey))
1063 RegSetValueExA(hKey, szValueName, 0, REG_DWORD,
1064 (BYTE *)&pKey->dwPermissions,
1065 sizeof(pKey->dwPermissions));
1068 /******************************************************************************
1069 * create_container_key [Internal]
1071 * Creates the registry key for a key container's persistent storage.
1073 * PARAMS
1074 * pKeyContainer [I] Pointer to the key container
1075 * sam [I] Desired registry access
1076 * phKey [O] Returned key
1078 static BOOL create_container_key(KEYCONTAINER *pKeyContainer, REGSAM sam, HKEY *phKey)
1080 CHAR szRSABase[MAX_PATH];
1081 HKEY hRootKey;
1083 sprintf(szRSABase, RSAENH_REGKEY, pKeyContainer->szName);
1085 if (pKeyContainer->dwFlags & CRYPT_MACHINE_KEYSET)
1086 hRootKey = HKEY_LOCAL_MACHINE;
1087 else
1088 hRootKey = HKEY_CURRENT_USER;
1090 /* @@ Wine registry key: HKLM\Software\Wine\Crypto\RSA */
1091 /* @@ Wine registry key: HKCU\Software\Wine\Crypto\RSA */
1092 return RegCreateKeyExA(hRootKey, szRSABase, 0, NULL,
1093 REG_OPTION_NON_VOLATILE, sam, NULL, phKey, NULL)
1094 == ERROR_SUCCESS;
1097 /******************************************************************************
1098 * open_container_key [Internal]
1100 * Opens a key container's persistent storage for reading.
1102 * PARAMS
1103 * pszContainerName [I] Name of the container to be opened. May be the empty
1104 * string if the parent key of all containers is to be
1105 * opened.
1106 * dwFlags [I] Flags indicating which keyset to be opened.
1107 * phKey [O] Returned key
1109 static BOOL open_container_key(LPCSTR pszContainerName, DWORD dwFlags, REGSAM access, HKEY *phKey)
1111 CHAR szRSABase[MAX_PATH];
1112 HKEY hRootKey;
1114 sprintf(szRSABase, RSAENH_REGKEY, pszContainerName);
1116 if (dwFlags & CRYPT_MACHINE_KEYSET)
1117 hRootKey = HKEY_LOCAL_MACHINE;
1118 else
1119 hRootKey = HKEY_CURRENT_USER;
1121 /* @@ Wine registry key: HKLM\Software\Wine\Crypto\RSA */
1122 /* @@ Wine registry key: HKCU\Software\Wine\Crypto\RSA */
1123 return RegOpenKeyExA(hRootKey, szRSABase, 0, access, phKey) ==
1124 ERROR_SUCCESS;
1127 /******************************************************************************
1128 * delete_container_key [Internal]
1130 * Deletes a key container's persistent storage.
1132 * PARAMS
1133 * pszContainerName [I] Name of the container to be opened.
1134 * dwFlags [I] Flags indicating which keyset to be opened.
1136 static BOOL delete_container_key(LPCSTR pszContainerName, DWORD dwFlags)
1138 CHAR szRegKey[MAX_PATH];
1140 if (snprintf(szRegKey, MAX_PATH, RSAENH_REGKEY, pszContainerName) >= MAX_PATH) {
1141 SetLastError(NTE_BAD_KEYSET_PARAM);
1142 return FALSE;
1143 } else {
1144 HKEY hRootKey;
1145 if (dwFlags & CRYPT_MACHINE_KEYSET)
1146 hRootKey = HKEY_LOCAL_MACHINE;
1147 else
1148 hRootKey = HKEY_CURRENT_USER;
1149 if (!RegDeleteKeyA(hRootKey, szRegKey)) {
1150 SetLastError(ERROR_SUCCESS);
1151 return TRUE;
1152 } else {
1153 SetLastError(NTE_BAD_KEYSET);
1154 return FALSE;
1159 /******************************************************************************
1160 * store_key_container_keys [Internal]
1162 * Stores key container's keys in a persistent location.
1164 * PARAMS
1165 * pKeyContainer [I] Pointer to the key container whose keys are to be saved
1167 static void store_key_container_keys(KEYCONTAINER *pKeyContainer)
1169 HKEY hKey;
1170 DWORD dwFlags;
1172 /* On WinXP, persistent keys are stored in a file located at:
1173 * $AppData$\\Microsoft\\Crypto\\RSA\\$SID$\\some_hex_string
1176 if (pKeyContainer->dwFlags & CRYPT_MACHINE_KEYSET)
1177 dwFlags = CRYPTPROTECT_LOCAL_MACHINE;
1178 else
1179 dwFlags = 0;
1181 if (create_container_key(pKeyContainer, KEY_WRITE, &hKey))
1183 store_key_pair(pKeyContainer->hKeyExchangeKeyPair, hKey,
1184 AT_KEYEXCHANGE, dwFlags);
1185 store_key_pair(pKeyContainer->hSignatureKeyPair, hKey,
1186 AT_SIGNATURE, dwFlags);
1187 RegCloseKey(hKey);
1191 /******************************************************************************
1192 * store_key_container_permissions [Internal]
1194 * Stores key container's key permissions in a persistent location.
1196 * PARAMS
1197 * pKeyContainer [I] Pointer to the key container whose key permissions are to
1198 * be saved
1200 static void store_key_container_permissions(KEYCONTAINER *pKeyContainer)
1202 HKEY hKey;
1204 if (create_container_key(pKeyContainer, KEY_WRITE, &hKey))
1206 store_key_permissions(pKeyContainer->hKeyExchangeKeyPair, hKey,
1207 AT_KEYEXCHANGE);
1208 store_key_permissions(pKeyContainer->hSignatureKeyPair, hKey,
1209 AT_SIGNATURE);
1210 RegCloseKey(hKey);
1214 /******************************************************************************
1215 * release_key_container_keys [Internal]
1217 * Releases key container's keys.
1219 * PARAMS
1220 * pKeyContainer [I] Pointer to the key container whose keys are to be released.
1222 static void release_key_container_keys(KEYCONTAINER *pKeyContainer)
1224 release_handle(&handle_table, pKeyContainer->hKeyExchangeKeyPair,
1225 RSAENH_MAGIC_KEY);
1226 release_handle(&handle_table, pKeyContainer->hSignatureKeyPair,
1227 RSAENH_MAGIC_KEY);
1230 /******************************************************************************
1231 * destroy_key_container [Internal]
1233 * Destructor for key containers.
1235 * PARAMS
1236 * pObjectHdr [I] Pointer to the key container to be destroyed.
1238 static void destroy_key_container(OBJECTHDR *pObjectHdr)
1240 KEYCONTAINER *pKeyContainer = (KEYCONTAINER*)pObjectHdr;
1242 if (!(pKeyContainer->dwFlags & CRYPT_VERIFYCONTEXT))
1244 store_key_container_keys(pKeyContainer);
1245 store_key_container_permissions(pKeyContainer);
1246 release_key_container_keys(pKeyContainer);
1248 else
1249 release_key_container_keys(pKeyContainer);
1250 HeapFree( GetProcessHeap(), 0, pKeyContainer );
1253 /******************************************************************************
1254 * new_key_container [Internal]
1256 * Create a new key container. The personality (RSA Base, Strong or Enhanced CP)
1257 * of the CSP is determined via the pVTable->pszProvName string.
1259 * PARAMS
1260 * pszContainerName [I] Name of the key container.
1261 * pVTable [I] Callback functions and context info provided by the OS
1263 * RETURNS
1264 * Success: Handle to the new key container.
1265 * Failure: INVALID_HANDLE_VALUE
1267 static HCRYPTPROV new_key_container(PCCH pszContainerName, DWORD dwFlags, const VTableProvStruc *pVTable)
1269 KEYCONTAINER *pKeyContainer;
1270 HCRYPTPROV hKeyContainer;
1272 hKeyContainer = new_object(&handle_table, sizeof(KEYCONTAINER), RSAENH_MAGIC_CONTAINER,
1273 destroy_key_container, (OBJECTHDR**)&pKeyContainer);
1274 if (hKeyContainer != (HCRYPTPROV)INVALID_HANDLE_VALUE)
1276 lstrcpynA(pKeyContainer->szName, pszContainerName, MAX_PATH);
1277 pKeyContainer->dwFlags = dwFlags;
1278 pKeyContainer->dwEnumAlgsCtr = 0;
1279 pKeyContainer->hKeyExchangeKeyPair = (HCRYPTKEY)INVALID_HANDLE_VALUE;
1280 pKeyContainer->hSignatureKeyPair = (HCRYPTKEY)INVALID_HANDLE_VALUE;
1281 if (pVTable && pVTable->pszProvName) {
1282 lstrcpynA(pKeyContainer->szProvName, pVTable->pszProvName, MAX_PATH);
1283 if (!strcmp(pVTable->pszProvName, MS_DEF_PROV_A)) {
1284 pKeyContainer->dwPersonality = RSAENH_PERSONALITY_BASE;
1285 } else if (!strcmp(pVTable->pszProvName, MS_ENHANCED_PROV_A)) {
1286 pKeyContainer->dwPersonality = RSAENH_PERSONALITY_ENHANCED;
1287 } else if (!strcmp(pVTable->pszProvName, MS_DEF_RSA_SCHANNEL_PROV_A)) {
1288 pKeyContainer->dwPersonality = RSAENH_PERSONALITY_SCHANNEL;
1289 } else if (!strcmp(pVTable->pszProvName, MS_ENH_RSA_AES_PROV_A)) {
1290 pKeyContainer->dwPersonality = RSAENH_PERSONALITY_AES;
1291 } else {
1292 pKeyContainer->dwPersonality = RSAENH_PERSONALITY_STRONG;
1296 /* The new key container has to be inserted into the CSP immediately
1297 * after creation to be available for CPGetProvParam's PP_ENUMCONTAINERS. */
1298 if (!(dwFlags & CRYPT_VERIFYCONTEXT)) {
1299 HKEY hKey;
1301 if (create_container_key(pKeyContainer, KEY_WRITE, &hKey))
1302 RegCloseKey(hKey);
1306 return hKeyContainer;
1309 /******************************************************************************
1310 * read_key_value [Internal]
1312 * Reads a key pair value from the registry
1314 * PARAMS
1315 * hKeyContainer [I] Crypt provider to use to import the key
1316 * hKey [I] Registry key from which to read the key pair
1317 * dwKeySpec [I] AT_KEYEXCHANGE or AT_SIGNATURE
1318 * dwFlags [I] Flags for unprotecting the key
1319 * phCryptKey [O] Returned key
1321 static BOOL read_key_value(HCRYPTPROV hKeyContainer, HKEY hKey, DWORD dwKeySpec, DWORD dwFlags, HCRYPTKEY *phCryptKey)
1323 LPCSTR szValueName;
1324 DWORD dwValueType, dwLen;
1325 BYTE *pbKey;
1326 DATA_BLOB blobIn, blobOut;
1327 BOOL ret = FALSE;
1329 if (!(szValueName = map_key_spec_to_key_pair_name(dwKeySpec)))
1330 return FALSE;
1331 if (RegQueryValueExA(hKey, szValueName, 0, &dwValueType, NULL, &dwLen) ==
1332 ERROR_SUCCESS)
1334 pbKey = HeapAlloc(GetProcessHeap(), 0, dwLen);
1335 if (pbKey)
1337 if (RegQueryValueExA(hKey, szValueName, 0, &dwValueType, pbKey, &dwLen) ==
1338 ERROR_SUCCESS)
1340 blobIn.pbData = pbKey;
1341 blobIn.cbData = dwLen;
1343 if (CryptUnprotectData(&blobIn, NULL, NULL, NULL, NULL,
1344 dwFlags, &blobOut))
1346 ret = import_key(hKeyContainer, blobOut.pbData, blobOut.cbData, 0, 0,
1347 FALSE, phCryptKey);
1348 LocalFree(blobOut.pbData);
1351 HeapFree(GetProcessHeap(), 0, pbKey);
1354 if (ret)
1356 CRYPTKEY *pKey;
1358 if (lookup_handle(&handle_table, *phCryptKey, RSAENH_MAGIC_KEY,
1359 (OBJECTHDR**)&pKey))
1361 if ((szValueName = map_key_spec_to_permissions_name(dwKeySpec)))
1363 dwLen = sizeof(pKey->dwPermissions);
1364 RegQueryValueExA(hKey, szValueName, 0, NULL,
1365 (BYTE *)&pKey->dwPermissions, &dwLen);
1369 return ret;
1372 /******************************************************************************
1373 * read_key_container [Internal]
1375 * Tries to read the persistent state of the key container (mainly the signature
1376 * and key exchange private keys) given by pszContainerName.
1378 * PARAMS
1379 * pszContainerName [I] Name of the key container to read from the registry
1380 * pVTable [I] Pointer to context data provided by the operating system
1382 * RETURNS
1383 * Success: Handle to the key container read from the registry
1384 * Failure: INVALID_HANDLE_VALUE
1386 static HCRYPTPROV read_key_container(PCHAR pszContainerName, DWORD dwFlags, const VTableProvStruc *pVTable)
1388 HKEY hKey;
1389 KEYCONTAINER *pKeyContainer;
1390 HCRYPTPROV hKeyContainer;
1391 HCRYPTKEY hCryptKey;
1393 if (!open_container_key(pszContainerName, dwFlags, KEY_READ, &hKey))
1395 SetLastError(NTE_BAD_KEYSET);
1396 return (HCRYPTPROV)INVALID_HANDLE_VALUE;
1399 hKeyContainer = new_key_container(pszContainerName, dwFlags, pVTable);
1400 if (hKeyContainer != (HCRYPTPROV)INVALID_HANDLE_VALUE)
1402 DWORD dwProtectFlags = (dwFlags & CRYPT_MACHINE_KEYSET) ?
1403 CRYPTPROTECT_LOCAL_MACHINE : 0;
1405 if (!lookup_handle(&handle_table, hKeyContainer, RSAENH_MAGIC_CONTAINER,
1406 (OBJECTHDR**)&pKeyContainer))
1407 return (HCRYPTPROV)INVALID_HANDLE_VALUE;
1409 /* read_key_value calls import_key, which calls import_private_key,
1410 * which implicitly installs the key value into the appropriate key
1411 * container key. Thus the ref count is incremented twice, once for
1412 * the output key value, and once for the implicit install, and needs
1413 * to be decremented to balance the two.
1415 if (read_key_value(hKeyContainer, hKey, AT_KEYEXCHANGE,
1416 dwProtectFlags, &hCryptKey))
1417 release_handle(&handle_table, hCryptKey, RSAENH_MAGIC_KEY);
1418 if (read_key_value(hKeyContainer, hKey, AT_SIGNATURE,
1419 dwProtectFlags, &hCryptKey))
1420 release_handle(&handle_table, hCryptKey, RSAENH_MAGIC_KEY);
1423 return hKeyContainer;
1426 /******************************************************************************
1427 * build_hash_signature [Internal]
1429 * Builds a padded version of a hash to match the length of the RSA key modulus.
1431 * PARAMS
1432 * pbSignature [O] The padded hash object is stored here.
1433 * dwLen [I] Length of the pbSignature buffer.
1434 * aiAlgid [I] Algorithm identifier of the hash to be padded.
1435 * abHashValue [I] The value of the hash object.
1436 * dwHashLen [I] Length of the hash value.
1437 * dwFlags [I] Selection of padding algorithm.
1439 * RETURNS
1440 * Success: TRUE
1441 * Failure: FALSE (NTE_BAD_ALGID)
1443 static BOOL build_hash_signature(BYTE *pbSignature, DWORD dwLen, ALG_ID aiAlgid,
1444 const BYTE *abHashValue, DWORD dwHashLen, DWORD dwFlags)
1446 /* These prefixes are meant to be concatenated with hash values of the
1447 * respective kind to form a PKCS #7 DigestInfo. */
1448 static const struct tagOIDDescriptor {
1449 ALG_ID aiAlgid;
1450 DWORD dwLen;
1451 const BYTE abOID[19];
1452 } aOIDDescriptor[] = {
1453 { CALG_MD2, 18, { 0x30, 0x20, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48,
1454 0x86, 0xf7, 0x0d, 0x02, 0x02, 0x05, 0x00, 0x04, 0x10 } },
1455 { CALG_MD4, 18, { 0x30, 0x20, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48,
1456 0x86, 0xf7, 0x0d, 0x02, 0x04, 0x05, 0x00, 0x04, 0x10 } },
1457 { CALG_MD5, 18, { 0x30, 0x20, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48,
1458 0x86, 0xf7, 0x0d, 0x02, 0x05, 0x05, 0x00, 0x04, 0x10 } },
1459 { CALG_SHA, 15, { 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03,
1460 0x02, 0x1a, 0x05, 0x00, 0x04, 0x14 } },
1461 { CALG_SHA_256, 19, { 0x30, 0x31, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86,
1462 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01,
1463 0x05, 0x00, 0x04, 0x20 } },
1464 { CALG_SHA_384, 19, { 0x30, 0x41, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86,
1465 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01,
1466 0x05, 0x00, 0x04, 0x30 } },
1467 { CALG_SHA_384, 19, { 0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86,
1468 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01,
1469 0x05, 0x00, 0x04, 0x40 } },
1470 { CALG_SSL3_SHAMD5, 0, { 0 } },
1471 { 0, 0, { 0 } }
1473 DWORD dwIdxOID, i, j;
1475 for (dwIdxOID = 0; aOIDDescriptor[dwIdxOID].aiAlgid; dwIdxOID++) {
1476 if (aOIDDescriptor[dwIdxOID].aiAlgid == aiAlgid) break;
1479 if (!aOIDDescriptor[dwIdxOID].aiAlgid) {
1480 SetLastError(NTE_BAD_ALGID);
1481 return FALSE;
1484 /* Build the padded signature */
1485 if (dwFlags & CRYPT_X931_FORMAT) {
1486 pbSignature[0] = 0x6b;
1487 for (i=1; i < dwLen - dwHashLen - 3; i++) {
1488 pbSignature[i] = 0xbb;
1490 pbSignature[i++] = 0xba;
1491 for (j=0; j < dwHashLen; j++, i++) {
1492 pbSignature[i] = abHashValue[j];
1494 pbSignature[i++] = 0x33;
1495 pbSignature[i++] = 0xcc;
1496 } else {
1497 pbSignature[0] = 0x00;
1498 pbSignature[1] = 0x01;
1499 if (dwFlags & CRYPT_NOHASHOID) {
1500 for (i=2; i < dwLen - 1 - dwHashLen; i++) {
1501 pbSignature[i] = 0xff;
1503 pbSignature[i++] = 0x00;
1504 } else {
1505 for (i=2; i < dwLen - 1 - aOIDDescriptor[dwIdxOID].dwLen - dwHashLen; i++) {
1506 pbSignature[i] = 0xff;
1508 pbSignature[i++] = 0x00;
1509 for (j=0; j < aOIDDescriptor[dwIdxOID].dwLen; j++) {
1510 pbSignature[i++] = aOIDDescriptor[dwIdxOID].abOID[j];
1513 for (j=0; j < dwHashLen; j++) {
1514 pbSignature[i++] = abHashValue[j];
1518 return TRUE;
1521 /******************************************************************************
1522 * tls1_p [Internal]
1524 * This is an implementation of the 'P_hash' helper function for TLS1's PRF.
1525 * It is used exclusively by tls1_prf. For details see RFC 2246, chapter 5.
1526 * The pseudo random stream generated by this function is exclusive or'ed with
1527 * the data in pbBuffer.
1529 * PARAMS
1530 * hHMAC [I] HMAC object, which will be used in pseudo random generation
1531 * pblobSeed [I] Seed value
1532 * pbBuffer [I/O] Pseudo random stream will be xor'ed to the provided data
1533 * dwBufferLen [I] Number of pseudo random bytes desired
1535 * RETURNS
1536 * Success: TRUE
1537 * Failure: FALSE
1539 static BOOL tls1_p(HCRYPTHASH hHMAC, const PCRYPT_DATA_BLOB pblobSeed, BYTE *pbBuffer,
1540 DWORD dwBufferLen)
1542 CRYPTHASH *pHMAC;
1543 BYTE abAi[RSAENH_MAX_HASH_SIZE];
1544 DWORD i = 0;
1546 if (!lookup_handle(&handle_table, hHMAC, RSAENH_MAGIC_HASH, (OBJECTHDR**)&pHMAC)) {
1547 SetLastError(NTE_BAD_HASH);
1548 return FALSE;
1551 /* compute A_1 = HMAC(seed) */
1552 init_hash(pHMAC);
1553 update_hash(pHMAC, pblobSeed->pbData, pblobSeed->cbData);
1554 finalize_hash(pHMAC);
1555 memcpy(abAi, pHMAC->abHashValue, pHMAC->dwHashSize);
1557 do {
1558 /* compute HMAC(A_i + seed) */
1559 init_hash(pHMAC);
1560 update_hash(pHMAC, abAi, pHMAC->dwHashSize);
1561 update_hash(pHMAC, pblobSeed->pbData, pblobSeed->cbData);
1562 finalize_hash(pHMAC);
1564 /* pseudo random stream := CONCAT_{i=1..n} ( HMAC(A_i + seed) ) */
1565 do {
1566 if (i >= dwBufferLen) break;
1567 pbBuffer[i] ^= pHMAC->abHashValue[i % pHMAC->dwHashSize];
1568 i++;
1569 } while (i % pHMAC->dwHashSize);
1571 /* compute A_{i+1} = HMAC(A_i) */
1572 init_hash(pHMAC);
1573 update_hash(pHMAC, abAi, pHMAC->dwHashSize);
1574 finalize_hash(pHMAC);
1575 memcpy(abAi, pHMAC->abHashValue, pHMAC->dwHashSize);
1576 } while (i < dwBufferLen);
1578 return TRUE;
1581 /******************************************************************************
1582 * tls1_prf [Internal]
1584 * TLS1 pseudo random function as specified in RFC 2246, chapter 5
1586 * PARAMS
1587 * hProv [I] Key container used to compute the pseudo random stream
1588 * hSecret [I] Key that holds the (pre-)master secret
1589 * pblobLabel [I] Descriptive label
1590 * pblobSeed [I] Seed value
1591 * pbBuffer [O] Pseudo random numbers will be stored here
1592 * dwBufferLen [I] Number of pseudo random bytes desired
1594 * RETURNS
1595 * Success: TRUE
1596 * Failure: FALSE
1598 static BOOL tls1_prf(HCRYPTPROV hProv, HCRYPTPROV hSecret, const PCRYPT_DATA_BLOB pblobLabel,
1599 const PCRYPT_DATA_BLOB pblobSeed, BYTE *pbBuffer, DWORD dwBufferLen)
1601 HMAC_INFO hmacInfo = { 0, NULL, 0, NULL, 0 };
1602 HCRYPTHASH hHMAC = (HCRYPTHASH)INVALID_HANDLE_VALUE;
1603 HCRYPTKEY hHalfSecret = (HCRYPTKEY)INVALID_HANDLE_VALUE;
1604 CRYPTKEY *pHalfSecret, *pSecret;
1605 DWORD dwHalfSecretLen;
1606 BOOL result = FALSE;
1607 CRYPT_DATA_BLOB blobLabelSeed;
1609 TRACE("(hProv=%08lx, hSecret=%08lx, pblobLabel=%p, pblobSeed=%p, pbBuffer=%p, dwBufferLen=%d)\n",
1610 hProv, hSecret, pblobLabel, pblobSeed, pbBuffer, dwBufferLen);
1612 if (!lookup_handle(&handle_table, hSecret, RSAENH_MAGIC_KEY, (OBJECTHDR**)&pSecret)) {
1613 SetLastError(NTE_FAIL);
1614 return FALSE;
1617 dwHalfSecretLen = (pSecret->dwKeyLen+1)/2;
1619 /* concatenation of the label and the seed */
1620 if (!concat_data_blobs(&blobLabelSeed, pblobLabel, pblobSeed)) goto exit;
1622 /* zero out the buffer, since two random streams will be xor'ed into it. */
1623 memset(pbBuffer, 0, dwBufferLen);
1625 /* build a 'fake' key, to hold the secret. CALG_SSL2_MASTER is used since it provides
1626 * the biggest range of valid key lengths. */
1627 hHalfSecret = new_key(hProv, CALG_SSL2_MASTER, MAKELONG(0,dwHalfSecretLen*8), &pHalfSecret);
1628 if (hHalfSecret == (HCRYPTKEY)INVALID_HANDLE_VALUE) goto exit;
1630 /* Derive an HMAC_MD5 hash and call the helper function. */
1631 memcpy(pHalfSecret->abKeyValue, pSecret->abKeyValue, dwHalfSecretLen);
1632 if (!RSAENH_CPCreateHash(hProv, CALG_HMAC, hHalfSecret, 0, &hHMAC)) goto exit;
1633 hmacInfo.HashAlgid = CALG_MD5;
1634 if (!RSAENH_CPSetHashParam(hProv, hHMAC, HP_HMAC_INFO, (BYTE*)&hmacInfo, 0)) goto exit;
1635 if (!tls1_p(hHMAC, &blobLabelSeed, pbBuffer, dwBufferLen)) goto exit;
1637 /* Reconfigure to HMAC_SHA hash and call helper function again. */
1638 memcpy(pHalfSecret->abKeyValue, pSecret->abKeyValue + (pSecret->dwKeyLen/2), dwHalfSecretLen);
1639 hmacInfo.HashAlgid = CALG_SHA;
1640 if (!RSAENH_CPSetHashParam(hProv, hHMAC, HP_HMAC_INFO, (BYTE*)&hmacInfo, 0)) goto exit;
1641 if (!tls1_p(hHMAC, &blobLabelSeed, pbBuffer, dwBufferLen)) goto exit;
1643 result = TRUE;
1644 exit:
1645 release_handle(&handle_table, hHalfSecret, RSAENH_MAGIC_KEY);
1646 if (hHMAC != (HCRYPTHASH)INVALID_HANDLE_VALUE) RSAENH_CPDestroyHash(hProv, hHMAC);
1647 free_data_blob(&blobLabelSeed);
1648 return result;
1651 /******************************************************************************
1652 * pad_data [Internal]
1654 * Helper function for data padding according to PKCS1 #2
1656 * PARAMS
1657 * abData [I] The data to be padded
1658 * dwDataLen [I] Length of the data
1659 * abBuffer [O] Padded data will be stored here
1660 * dwBufferLen [I] Length of the buffer (also length of padded data)
1661 * dwFlags [I] Padding format (CRYPT_SSL2_FALLBACK)
1663 * RETURN
1664 * Success: TRUE
1665 * Failure: FALSE (NTE_BAD_LEN, too much data to pad)
1667 static BOOL pad_data(const BYTE *abData, DWORD dwDataLen, BYTE *abBuffer, DWORD dwBufferLen,
1668 DWORD dwFlags)
1670 DWORD i;
1672 /* Ensure there is enough space for PKCS1 #2 padding */
1673 if (dwDataLen > dwBufferLen-11) {
1674 SetLastError(NTE_BAD_LEN);
1675 return FALSE;
1678 memmove(abBuffer + dwBufferLen - dwDataLen, abData, dwDataLen);
1680 abBuffer[0] = 0x00;
1681 abBuffer[1] = RSAENH_PKC_BLOCKTYPE;
1682 for (i=2; i < dwBufferLen - dwDataLen - 1; i++)
1683 do gen_rand_impl(&abBuffer[i], 1); while (!abBuffer[i]);
1684 if (dwFlags & CRYPT_SSL2_FALLBACK)
1685 for (i-=8; i < dwBufferLen - dwDataLen - 1; i++)
1686 abBuffer[i] = 0x03;
1687 abBuffer[i] = 0x00;
1689 return TRUE;
1692 /******************************************************************************
1693 * unpad_data [Internal]
1695 * Remove the PKCS1 padding from RSA decrypted data
1697 * PARAMS
1698 * abData [I] The padded data
1699 * dwDataLen [I] Length of the padded data
1700 * abBuffer [O] Data without padding will be stored here
1701 * dwBufferLen [I/O] I: Length of the buffer, O: Length of unpadded data
1702 * dwFlags [I] Currently none defined
1704 * RETURNS
1705 * Success: TRUE
1706 * Failure: FALSE, (NTE_BAD_DATA, no valid PKCS1 padding or buffer too small)
1708 static BOOL unpad_data(const BYTE *abData, DWORD dwDataLen, BYTE *abBuffer, DWORD *dwBufferLen,
1709 DWORD dwFlags)
1711 DWORD i;
1713 if (dwDataLen < 3)
1715 SetLastError(NTE_BAD_DATA);
1716 return FALSE;
1718 for (i=2; i<dwDataLen; i++)
1719 if (!abData[i])
1720 break;
1722 if ((i == dwDataLen) || (*dwBufferLen < dwDataLen - i - 1) ||
1723 (abData[0] != 0x00) || (abData[1] != RSAENH_PKC_BLOCKTYPE))
1725 SetLastError(NTE_BAD_DATA);
1726 return FALSE;
1729 *dwBufferLen = dwDataLen - i - 1;
1730 memmove(abBuffer, abData + i + 1, *dwBufferLen);
1731 return TRUE;
1734 /******************************************************************************
1735 * CPAcquireContext (RSAENH.@)
1737 * Acquire a handle to the key container specified by pszContainer
1739 * PARAMS
1740 * phProv [O] Pointer to the location the acquired handle will be written to.
1741 * pszContainer [I] Name of the desired key container. See Notes
1742 * dwFlags [I] Flags. See Notes.
1743 * pVTable [I] Pointer to a PVTableProvStruct containing callbacks.
1745 * RETURNS
1746 * Success: TRUE
1747 * Failure: FALSE
1749 * NOTES
1750 * If pszContainer is NULL or points to a zero length string the user's login
1751 * name will be used as the key container name.
1753 * If the CRYPT_NEW_KEYSET flag is set in dwFlags a new keyset will be created.
1754 * If a keyset with the given name already exists, the function fails and sets
1755 * last error to NTE_EXISTS. If CRYPT_NEW_KEYSET is not set and the specified
1756 * key container does not exist, function fails and sets last error to
1757 * NTE_BAD_KEYSET.
1759 BOOL WINAPI RSAENH_CPAcquireContext(HCRYPTPROV *phProv, LPSTR pszContainer,
1760 DWORD dwFlags, PVTableProvStruc pVTable)
1762 CHAR szKeyContainerName[MAX_PATH];
1764 TRACE("(phProv=%p, pszContainer=%s, dwFlags=%08x, pVTable=%p)\n", phProv,
1765 debugstr_a(pszContainer), dwFlags, pVTable);
1767 if (pszContainer && *pszContainer)
1769 lstrcpynA(szKeyContainerName, pszContainer, MAX_PATH);
1771 else
1773 DWORD dwLen = sizeof(szKeyContainerName);
1774 if (!GetUserNameA(szKeyContainerName, &dwLen)) return FALSE;
1777 switch (dwFlags & (CRYPT_NEWKEYSET|CRYPT_VERIFYCONTEXT|CRYPT_DELETEKEYSET))
1779 case 0:
1780 *phProv = read_key_container(szKeyContainerName, dwFlags, pVTable);
1781 break;
1783 case CRYPT_DELETEKEYSET:
1784 return delete_container_key(szKeyContainerName, dwFlags);
1786 case CRYPT_NEWKEYSET:
1787 *phProv = read_key_container(szKeyContainerName, dwFlags, pVTable);
1788 if (*phProv != (HCRYPTPROV)INVALID_HANDLE_VALUE)
1790 release_handle(&handle_table, *phProv, RSAENH_MAGIC_CONTAINER);
1791 TRACE("Can't create new keyset, already exists\n");
1792 SetLastError(NTE_EXISTS);
1793 return FALSE;
1795 *phProv = new_key_container(szKeyContainerName, dwFlags, pVTable);
1796 break;
1798 case CRYPT_VERIFYCONTEXT|CRYPT_NEWKEYSET:
1799 case CRYPT_VERIFYCONTEXT:
1800 if (pszContainer && *pszContainer) {
1801 TRACE("pszContainer should be empty\n");
1802 SetLastError(NTE_BAD_FLAGS);
1803 return FALSE;
1805 *phProv = new_key_container("", dwFlags, pVTable);
1806 break;
1808 default:
1809 *phProv = (HCRYPTPROV)INVALID_HANDLE_VALUE;
1810 SetLastError(NTE_BAD_FLAGS);
1811 return FALSE;
1814 if (*phProv != (HCRYPTPROV)INVALID_HANDLE_VALUE) {
1815 SetLastError(ERROR_SUCCESS);
1816 return TRUE;
1817 } else {
1818 return FALSE;
1822 /******************************************************************************
1823 * CPCreateHash (RSAENH.@)
1825 * CPCreateHash creates and initializes a new hash object.
1827 * PARAMS
1828 * hProv [I] Handle to the key container to which the new hash will belong.
1829 * Algid [I] Identifies the hash algorithm, which will be used for the hash.
1830 * hKey [I] Handle to a session key applied for keyed hashes.
1831 * dwFlags [I] Currently no flags defined. Must be zero.
1832 * phHash [O] Points to the location where a handle to the new hash will be stored.
1834 * RETURNS
1835 * Success: TRUE
1836 * Failure: FALSE
1838 * NOTES
1839 * hKey is a handle to a session key applied in keyed hashes like MAC and HMAC.
1840 * If a normal hash object is to be created (like e.g. MD2 or SHA1) hKey must be zero.
1842 BOOL WINAPI RSAENH_CPCreateHash(HCRYPTPROV hProv, ALG_ID Algid, HCRYPTKEY hKey, DWORD dwFlags,
1843 HCRYPTHASH *phHash)
1845 CRYPTKEY *pCryptKey;
1846 CRYPTHASH *pCryptHash;
1847 const PROV_ENUMALGS_EX *peaAlgidInfo;
1849 TRACE("(hProv=%08lx, Algid=%08x, hKey=%08lx, dwFlags=%08x, phHash=%p)\n", hProv, Algid, hKey,
1850 dwFlags, phHash);
1852 peaAlgidInfo = get_algid_info(hProv, Algid);
1853 if (!peaAlgidInfo) return FALSE;
1855 if (dwFlags)
1857 SetLastError(NTE_BAD_FLAGS);
1858 return FALSE;
1861 if (Algid == CALG_MAC || Algid == CALG_HMAC || Algid == CALG_SCHANNEL_MASTER_HASH ||
1862 Algid == CALG_TLS1PRF)
1864 if (!lookup_handle(&handle_table, hKey, RSAENH_MAGIC_KEY, (OBJECTHDR**)&pCryptKey)) {
1865 SetLastError(NTE_BAD_KEY);
1866 return FALSE;
1869 if ((Algid == CALG_MAC) && (GET_ALG_TYPE(pCryptKey->aiAlgid) != ALG_TYPE_BLOCK)) {
1870 SetLastError(NTE_BAD_KEY);
1871 return FALSE;
1874 if ((Algid == CALG_SCHANNEL_MASTER_HASH || Algid == CALG_TLS1PRF) &&
1875 (pCryptKey->aiAlgid != CALG_TLS1_MASTER))
1877 SetLastError(NTE_BAD_KEY);
1878 return FALSE;
1880 if (Algid == CALG_SCHANNEL_MASTER_HASH &&
1881 ((!pCryptKey->siSChannelInfo.blobClientRandom.cbData) ||
1882 (!pCryptKey->siSChannelInfo.blobServerRandom.cbData)))
1884 SetLastError(ERROR_INVALID_PARAMETER);
1885 return FALSE;
1888 if ((Algid == CALG_TLS1PRF) && (pCryptKey->dwState != RSAENH_KEYSTATE_MASTERKEY)) {
1889 SetLastError(NTE_BAD_KEY_STATE);
1890 return FALSE;
1894 *phHash = new_object(&handle_table, sizeof(CRYPTHASH), RSAENH_MAGIC_HASH,
1895 destroy_hash, (OBJECTHDR**)&pCryptHash);
1896 if (!pCryptHash) return FALSE;
1898 pCryptHash->aiAlgid = Algid;
1899 pCryptHash->hKey = hKey;
1900 pCryptHash->hProv = hProv;
1901 pCryptHash->dwState = RSAENH_HASHSTATE_HASHING;
1902 pCryptHash->pHMACInfo = NULL;
1903 pCryptHash->dwHashSize = peaAlgidInfo->dwDefaultLen >> 3;
1904 init_data_blob(&pCryptHash->tpPRFParams.blobLabel);
1905 init_data_blob(&pCryptHash->tpPRFParams.blobSeed);
1907 if (Algid == CALG_SCHANNEL_MASTER_HASH) {
1908 static const char keyex[] = "key expansion";
1909 BYTE key_expansion[sizeof keyex];
1910 CRYPT_DATA_BLOB blobRandom, blobKeyExpansion = { 13, key_expansion };
1912 memcpy( key_expansion, keyex, sizeof keyex );
1914 if (pCryptKey->dwState != RSAENH_KEYSTATE_MASTERKEY) {
1915 static const char msec[] = "master secret";
1916 BYTE master_secret[sizeof msec];
1917 CRYPT_DATA_BLOB blobLabel = { 13, master_secret };
1918 BYTE abKeyValue[48];
1920 memcpy( master_secret, msec, sizeof msec );
1922 /* See RFC 2246, chapter 8.1 */
1923 if (!concat_data_blobs(&blobRandom,
1924 &pCryptKey->siSChannelInfo.blobClientRandom,
1925 &pCryptKey->siSChannelInfo.blobServerRandom))
1927 return FALSE;
1929 tls1_prf(hProv, hKey, &blobLabel, &blobRandom, abKeyValue, 48);
1930 pCryptKey->dwState = RSAENH_KEYSTATE_MASTERKEY;
1931 memcpy(pCryptKey->abKeyValue, abKeyValue, 48);
1932 free_data_blob(&blobRandom);
1935 /* See RFC 2246, chapter 6.3 */
1936 if (!concat_data_blobs(&blobRandom,
1937 &pCryptKey->siSChannelInfo.blobServerRandom,
1938 &pCryptKey->siSChannelInfo.blobClientRandom))
1940 return FALSE;
1942 tls1_prf(hProv, hKey, &blobKeyExpansion, &blobRandom, pCryptHash->abHashValue,
1943 RSAENH_MAX_HASH_SIZE);
1944 free_data_blob(&blobRandom);
1947 return init_hash(pCryptHash);
1950 /******************************************************************************
1951 * CPDestroyHash (RSAENH.@)
1953 * Releases the handle to a hash object. The object is destroyed if its reference
1954 * count reaches zero.
1956 * PARAMS
1957 * hProv [I] Handle to the key container to which the hash object belongs.
1958 * hHash [I] Handle to the hash object to be released.
1960 * RETURNS
1961 * Success: TRUE
1962 * Failure: FALSE
1964 BOOL WINAPI RSAENH_CPDestroyHash(HCRYPTPROV hProv, HCRYPTHASH hHash)
1966 TRACE("(hProv=%08lx, hHash=%08lx)\n", hProv, hHash);
1968 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
1970 SetLastError(NTE_BAD_UID);
1971 return FALSE;
1974 if (!release_handle(&handle_table, hHash, RSAENH_MAGIC_HASH))
1976 SetLastError(NTE_BAD_HASH);
1977 return FALSE;
1980 return TRUE;
1983 /******************************************************************************
1984 * CPDestroyKey (RSAENH.@)
1986 * Releases the handle to a key object. The object is destroyed if its reference
1987 * count reaches zero.
1989 * PARAMS
1990 * hProv [I] Handle to the key container to which the key object belongs.
1991 * hKey [I] Handle to the key object to be released.
1993 * RETURNS
1994 * Success: TRUE
1995 * Failure: FALSE
1997 BOOL WINAPI RSAENH_CPDestroyKey(HCRYPTPROV hProv, HCRYPTKEY hKey)
1999 TRACE("(hProv=%08lx, hKey=%08lx)\n", hProv, hKey);
2001 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
2003 SetLastError(NTE_BAD_UID);
2004 return FALSE;
2007 if (!release_handle(&handle_table, hKey, RSAENH_MAGIC_KEY))
2009 SetLastError(NTE_BAD_KEY);
2010 return FALSE;
2013 return TRUE;
2016 /******************************************************************************
2017 * CPDuplicateHash (RSAENH.@)
2019 * Clones a hash object including its current state.
2021 * PARAMS
2022 * hUID [I] Handle to the key container the hash belongs to.
2023 * hHash [I] Handle to the hash object to be cloned.
2024 * pdwReserved [I] Reserved. Must be NULL.
2025 * dwFlags [I] No flags are currently defined. Must be 0.
2026 * phHash [O] Handle to the cloned hash object.
2028 * RETURNS
2029 * Success: TRUE.
2030 * Failure: FALSE.
2032 BOOL WINAPI RSAENH_CPDuplicateHash(HCRYPTPROV hUID, HCRYPTHASH hHash, DWORD *pdwReserved,
2033 DWORD dwFlags, HCRYPTHASH *phHash)
2035 CRYPTHASH *pSrcHash, *pDestHash;
2037 TRACE("(hUID=%08lx, hHash=%08lx, pdwReserved=%p, dwFlags=%08x, phHash=%p)\n", hUID, hHash,
2038 pdwReserved, dwFlags, phHash);
2040 if (!is_valid_handle(&handle_table, hUID, RSAENH_MAGIC_CONTAINER))
2042 SetLastError(NTE_BAD_UID);
2043 return FALSE;
2046 if (!lookup_handle(&handle_table, hHash, RSAENH_MAGIC_HASH, (OBJECTHDR**)&pSrcHash))
2048 SetLastError(NTE_BAD_HASH);
2049 return FALSE;
2052 if (!phHash || pdwReserved || dwFlags)
2054 SetLastError(ERROR_INVALID_PARAMETER);
2055 return FALSE;
2058 *phHash = new_object(&handle_table, sizeof(CRYPTHASH), RSAENH_MAGIC_HASH,
2059 destroy_hash, (OBJECTHDR**)&pDestHash);
2060 if (*phHash != (HCRYPTHASH)INVALID_HANDLE_VALUE)
2062 *pDestHash = *pSrcHash;
2063 duplicate_hash_impl(pSrcHash->aiAlgid, &pSrcHash->context, &pDestHash->context);
2064 copy_hmac_info(&pDestHash->pHMACInfo, pSrcHash->pHMACInfo);
2065 copy_data_blob(&pDestHash->tpPRFParams.blobLabel, &pSrcHash->tpPRFParams.blobLabel);
2066 copy_data_blob(&pDestHash->tpPRFParams.blobSeed, &pSrcHash->tpPRFParams.blobSeed);
2069 return *phHash != (HCRYPTHASH)INVALID_HANDLE_VALUE;
2072 /******************************************************************************
2073 * CPDuplicateKey (RSAENH.@)
2075 * Clones a key object including its current state.
2077 * PARAMS
2078 * hUID [I] Handle to the key container the hash belongs to.
2079 * hKey [I] Handle to the key object to be cloned.
2080 * pdwReserved [I] Reserved. Must be NULL.
2081 * dwFlags [I] No flags are currently defined. Must be 0.
2082 * phHash [O] Handle to the cloned key object.
2084 * RETURNS
2085 * Success: TRUE.
2086 * Failure: FALSE.
2088 BOOL WINAPI RSAENH_CPDuplicateKey(HCRYPTPROV hUID, HCRYPTKEY hKey, DWORD *pdwReserved,
2089 DWORD dwFlags, HCRYPTKEY *phKey)
2091 CRYPTKEY *pSrcKey, *pDestKey;
2093 TRACE("(hUID=%08lx, hKey=%08lx, pdwReserved=%p, dwFlags=%08x, phKey=%p)\n", hUID, hKey,
2094 pdwReserved, dwFlags, phKey);
2096 if (!is_valid_handle(&handle_table, hUID, RSAENH_MAGIC_CONTAINER))
2098 SetLastError(NTE_BAD_UID);
2099 return FALSE;
2102 if (!lookup_handle(&handle_table, hKey, RSAENH_MAGIC_KEY, (OBJECTHDR**)&pSrcKey))
2104 SetLastError(NTE_BAD_KEY);
2105 return FALSE;
2108 if (!phKey || pdwReserved || dwFlags)
2110 SetLastError(ERROR_INVALID_PARAMETER);
2111 return FALSE;
2114 *phKey = new_object(&handle_table, sizeof(CRYPTKEY), RSAENH_MAGIC_KEY, destroy_key,
2115 (OBJECTHDR**)&pDestKey);
2116 if (*phKey != (HCRYPTKEY)INVALID_HANDLE_VALUE)
2118 *pDestKey = *pSrcKey;
2119 copy_data_blob(&pDestKey->siSChannelInfo.blobServerRandom,
2120 &pSrcKey->siSChannelInfo.blobServerRandom);
2121 copy_data_blob(&pDestKey->siSChannelInfo.blobClientRandom,
2122 &pSrcKey->siSChannelInfo.blobClientRandom);
2123 duplicate_key_impl(pSrcKey->aiAlgid, &pSrcKey->context, &pDestKey->context);
2124 return TRUE;
2126 else
2128 return FALSE;
2132 /******************************************************************************
2133 * CPEncrypt (RSAENH.@)
2135 * Encrypt data.
2137 * PARAMS
2138 * hProv [I] The key container hKey and hHash belong to.
2139 * hKey [I] The key used to encrypt the data.
2140 * hHash [I] An optional hash object for parallel hashing. See notes.
2141 * Final [I] Indicates if this is the last block of data to encrypt.
2142 * dwFlags [I] Currently no flags defined. Must be zero.
2143 * pbData [I/O] Pointer to the data to encrypt. Encrypted data will also be stored there.
2144 * pdwDataLen [I/O] I: Length of data to encrypt, O: Length of encrypted data.
2145 * dwBufLen [I] Size of the buffer at pbData.
2147 * RETURNS
2148 * Success: TRUE.
2149 * Failure: FALSE.
2151 * NOTES
2152 * If a hash object handle is provided in hHash, it will be updated with the plaintext.
2153 * This is useful for message signatures.
2155 * This function uses the standard WINAPI protocol for querying data of dynamic length.
2157 BOOL WINAPI RSAENH_CPEncrypt(HCRYPTPROV hProv, HCRYPTKEY hKey, HCRYPTHASH hHash, BOOL Final,
2158 DWORD dwFlags, BYTE *pbData, DWORD *pdwDataLen, DWORD dwBufLen)
2160 CRYPTKEY *pCryptKey;
2161 BYTE *in, out[RSAENH_MAX_BLOCK_SIZE], o[RSAENH_MAX_BLOCK_SIZE];
2162 DWORD dwEncryptedLen, i, j, k;
2164 TRACE("(hProv=%08lx, hKey=%08lx, hHash=%08lx, Final=%d, dwFlags=%08x, pbData=%p, "
2165 "pdwDataLen=%p, dwBufLen=%d)\n", hProv, hKey, hHash, Final, dwFlags, pbData, pdwDataLen,
2166 dwBufLen);
2168 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
2170 SetLastError(NTE_BAD_UID);
2171 return FALSE;
2174 if (dwFlags)
2176 SetLastError(NTE_BAD_FLAGS);
2177 return FALSE;
2180 if (!lookup_handle(&handle_table, hKey, RSAENH_MAGIC_KEY, (OBJECTHDR**)&pCryptKey))
2182 SetLastError(NTE_BAD_KEY);
2183 return FALSE;
2186 if (pCryptKey->dwState == RSAENH_KEYSTATE_IDLE)
2187 pCryptKey->dwState = RSAENH_KEYSTATE_ENCRYPTING;
2189 if (pCryptKey->dwState != RSAENH_KEYSTATE_ENCRYPTING)
2191 SetLastError(NTE_BAD_DATA);
2192 return FALSE;
2195 if (is_valid_handle(&handle_table, hHash, RSAENH_MAGIC_HASH)) {
2196 if (!RSAENH_CPHashData(hProv, hHash, pbData, *pdwDataLen, 0)) return FALSE;
2199 if (GET_ALG_TYPE(pCryptKey->aiAlgid) == ALG_TYPE_BLOCK) {
2200 if (!Final && (*pdwDataLen % pCryptKey->dwBlockLen)) {
2201 SetLastError(NTE_BAD_DATA);
2202 return FALSE;
2205 dwEncryptedLen = (*pdwDataLen/pCryptKey->dwBlockLen+(Final?1:0))*pCryptKey->dwBlockLen;
2207 if (pbData == NULL) {
2208 *pdwDataLen = dwEncryptedLen;
2209 return TRUE;
2211 else if (dwEncryptedLen > dwBufLen) {
2212 *pdwDataLen = dwEncryptedLen;
2213 SetLastError(ERROR_MORE_DATA);
2214 return FALSE;
2217 /* Pad final block with length bytes */
2218 for (i=*pdwDataLen; i<dwEncryptedLen; i++) pbData[i] = dwEncryptedLen - *pdwDataLen;
2219 *pdwDataLen = dwEncryptedLen;
2221 for (i=0, in=pbData; i<*pdwDataLen; i+=pCryptKey->dwBlockLen, in+=pCryptKey->dwBlockLen) {
2222 switch (pCryptKey->dwMode) {
2223 case CRYPT_MODE_ECB:
2224 encrypt_block_impl(pCryptKey->aiAlgid, 0, &pCryptKey->context, in, out,
2225 RSAENH_ENCRYPT);
2226 break;
2228 case CRYPT_MODE_CBC:
2229 for (j=0; j<pCryptKey->dwBlockLen; j++) in[j] ^= pCryptKey->abChainVector[j];
2230 encrypt_block_impl(pCryptKey->aiAlgid, 0, &pCryptKey->context, in, out,
2231 RSAENH_ENCRYPT);
2232 memcpy(pCryptKey->abChainVector, out, pCryptKey->dwBlockLen);
2233 break;
2235 case CRYPT_MODE_CFB:
2236 for (j=0; j<pCryptKey->dwBlockLen; j++) {
2237 encrypt_block_impl(pCryptKey->aiAlgid, 0, &pCryptKey->context,
2238 pCryptKey->abChainVector, o, RSAENH_ENCRYPT);
2239 out[j] = in[j] ^ o[0];
2240 for (k=0; k<pCryptKey->dwBlockLen-1; k++)
2241 pCryptKey->abChainVector[k] = pCryptKey->abChainVector[k+1];
2242 pCryptKey->abChainVector[k] = out[j];
2244 break;
2246 default:
2247 SetLastError(NTE_BAD_ALGID);
2248 return FALSE;
2250 memcpy(in, out, pCryptKey->dwBlockLen);
2252 } else if (GET_ALG_TYPE(pCryptKey->aiAlgid) == ALG_TYPE_STREAM) {
2253 if (pbData == NULL) {
2254 *pdwDataLen = dwBufLen;
2255 return TRUE;
2257 encrypt_stream_impl(pCryptKey->aiAlgid, &pCryptKey->context, pbData, *pdwDataLen);
2258 } else if (GET_ALG_TYPE(pCryptKey->aiAlgid) == ALG_TYPE_RSA) {
2259 if (pCryptKey->aiAlgid == CALG_RSA_SIGN) {
2260 SetLastError(NTE_BAD_KEY);
2261 return FALSE;
2263 if (!pbData) {
2264 *pdwDataLen = pCryptKey->dwBlockLen;
2265 return TRUE;
2267 if (dwBufLen < pCryptKey->dwBlockLen) {
2268 SetLastError(ERROR_MORE_DATA);
2269 return FALSE;
2271 if (!pad_data(pbData, *pdwDataLen, pbData, pCryptKey->dwBlockLen, dwFlags)) return FALSE;
2272 encrypt_block_impl(pCryptKey->aiAlgid, PK_PUBLIC, &pCryptKey->context, pbData, pbData, RSAENH_ENCRYPT);
2273 *pdwDataLen = pCryptKey->dwBlockLen;
2274 Final = TRUE;
2275 } else {
2276 SetLastError(NTE_BAD_TYPE);
2277 return FALSE;
2280 if (Final) setup_key(pCryptKey);
2282 return TRUE;
2285 /******************************************************************************
2286 * CPDecrypt (RSAENH.@)
2288 * Decrypt data.
2290 * PARAMS
2291 * hProv [I] The key container hKey and hHash belong to.
2292 * hKey [I] The key used to decrypt the data.
2293 * hHash [I] An optional hash object for parallel hashing. See notes.
2294 * Final [I] Indicates if this is the last block of data to decrypt.
2295 * dwFlags [I] Currently no flags defined. Must be zero.
2296 * pbData [I/O] Pointer to the data to decrypt. Plaintext will also be stored there.
2297 * pdwDataLen [I/O] I: Length of ciphertext, O: Length of plaintext.
2299 * RETURNS
2300 * Success: TRUE.
2301 * Failure: FALSE.
2303 * NOTES
2304 * If a hash object handle is provided in hHash, it will be updated with the plaintext.
2305 * This is useful for message signatures.
2307 * This function uses the standard WINAPI protocol for querying data of dynamic length.
2309 BOOL WINAPI RSAENH_CPDecrypt(HCRYPTPROV hProv, HCRYPTKEY hKey, HCRYPTHASH hHash, BOOL Final,
2310 DWORD dwFlags, BYTE *pbData, DWORD *pdwDataLen)
2312 CRYPTKEY *pCryptKey;
2313 BYTE *in, out[RSAENH_MAX_BLOCK_SIZE], o[RSAENH_MAX_BLOCK_SIZE];
2314 DWORD i, j, k;
2315 DWORD dwMax;
2317 TRACE("(hProv=%08lx, hKey=%08lx, hHash=%08lx, Final=%d, dwFlags=%08x, pbData=%p, "
2318 "pdwDataLen=%p)\n", hProv, hKey, hHash, Final, dwFlags, pbData, pdwDataLen);
2320 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
2322 SetLastError(NTE_BAD_UID);
2323 return FALSE;
2326 if (dwFlags)
2328 SetLastError(NTE_BAD_FLAGS);
2329 return FALSE;
2332 if (!lookup_handle(&handle_table, hKey, RSAENH_MAGIC_KEY, (OBJECTHDR**)&pCryptKey))
2334 SetLastError(NTE_BAD_KEY);
2335 return FALSE;
2338 if (pCryptKey->dwState == RSAENH_KEYSTATE_IDLE)
2339 pCryptKey->dwState = RSAENH_KEYSTATE_ENCRYPTING;
2341 if (pCryptKey->dwState != RSAENH_KEYSTATE_ENCRYPTING)
2343 SetLastError(NTE_BAD_DATA);
2344 return FALSE;
2347 dwMax=*pdwDataLen;
2349 if (GET_ALG_TYPE(pCryptKey->aiAlgid) == ALG_TYPE_BLOCK) {
2350 for (i=0, in=pbData; i<*pdwDataLen; i+=pCryptKey->dwBlockLen, in+=pCryptKey->dwBlockLen) {
2351 switch (pCryptKey->dwMode) {
2352 case CRYPT_MODE_ECB:
2353 encrypt_block_impl(pCryptKey->aiAlgid, 0, &pCryptKey->context, in, out,
2354 RSAENH_DECRYPT);
2355 break;
2357 case CRYPT_MODE_CBC:
2358 encrypt_block_impl(pCryptKey->aiAlgid, 0, &pCryptKey->context, in, out,
2359 RSAENH_DECRYPT);
2360 for (j=0; j<pCryptKey->dwBlockLen; j++) out[j] ^= pCryptKey->abChainVector[j];
2361 memcpy(pCryptKey->abChainVector, in, pCryptKey->dwBlockLen);
2362 break;
2364 case CRYPT_MODE_CFB:
2365 for (j=0; j<pCryptKey->dwBlockLen; j++) {
2366 encrypt_block_impl(pCryptKey->aiAlgid, 0, &pCryptKey->context,
2367 pCryptKey->abChainVector, o, RSAENH_ENCRYPT);
2368 out[j] = in[j] ^ o[0];
2369 for (k=0; k<pCryptKey->dwBlockLen-1; k++)
2370 pCryptKey->abChainVector[k] = pCryptKey->abChainVector[k+1];
2371 pCryptKey->abChainVector[k] = in[j];
2373 break;
2375 default:
2376 SetLastError(NTE_BAD_ALGID);
2377 return FALSE;
2379 memcpy(in, out, pCryptKey->dwBlockLen);
2381 if (Final) {
2382 if (pbData[*pdwDataLen-1] &&
2383 pbData[*pdwDataLen-1] <= pCryptKey->dwBlockLen &&
2384 pbData[*pdwDataLen-1] <= *pdwDataLen) {
2385 BOOL padOkay = TRUE;
2387 /* check that every bad byte has the same value */
2388 for (i = 1; padOkay && i < pbData[*pdwDataLen-1]; i++)
2389 if (pbData[*pdwDataLen - i - 1] != pbData[*pdwDataLen - 1])
2390 padOkay = FALSE;
2391 if (padOkay)
2392 *pdwDataLen -= pbData[*pdwDataLen-1];
2393 else {
2394 SetLastError(NTE_BAD_DATA);
2395 setup_key(pCryptKey);
2396 return FALSE;
2399 else {
2400 SetLastError(NTE_BAD_DATA);
2401 setup_key(pCryptKey);
2402 return FALSE;
2406 } else if (GET_ALG_TYPE(pCryptKey->aiAlgid) == ALG_TYPE_STREAM) {
2407 encrypt_stream_impl(pCryptKey->aiAlgid, &pCryptKey->context, pbData, *pdwDataLen);
2408 } else if (GET_ALG_TYPE(pCryptKey->aiAlgid) == ALG_TYPE_RSA) {
2409 if (pCryptKey->aiAlgid == CALG_RSA_SIGN) {
2410 SetLastError(NTE_BAD_KEY);
2411 return FALSE;
2413 encrypt_block_impl(pCryptKey->aiAlgid, PK_PRIVATE, &pCryptKey->context, pbData, pbData, RSAENH_DECRYPT);
2414 if (!unpad_data(pbData, pCryptKey->dwBlockLen, pbData, pdwDataLen, dwFlags)) return FALSE;
2415 Final = TRUE;
2416 } else {
2417 SetLastError(NTE_BAD_TYPE);
2418 return FALSE;
2421 if (Final) setup_key(pCryptKey);
2423 if (is_valid_handle(&handle_table, hHash, RSAENH_MAGIC_HASH)) {
2424 if (*pdwDataLen>dwMax ||
2425 !RSAENH_CPHashData(hProv, hHash, pbData, *pdwDataLen, 0)) return FALSE;
2428 return TRUE;
2431 static BOOL crypt_export_simple(CRYPTKEY *pCryptKey, CRYPTKEY *pPubKey,
2432 DWORD dwFlags, BYTE *pbData, DWORD *pdwDataLen)
2434 BLOBHEADER *pBlobHeader = (BLOBHEADER*)pbData;
2435 ALG_ID *pAlgid = (ALG_ID*)(pBlobHeader+1);
2436 DWORD dwDataLen;
2438 if (!(GET_ALG_CLASS(pCryptKey->aiAlgid)&(ALG_CLASS_DATA_ENCRYPT|ALG_CLASS_MSG_ENCRYPT))) {
2439 SetLastError(NTE_BAD_KEY); /* FIXME: error code? */
2440 return FALSE;
2443 dwDataLen = sizeof(BLOBHEADER) + sizeof(ALG_ID) + pPubKey->dwBlockLen;
2444 if (pbData) {
2445 if (*pdwDataLen < dwDataLen) {
2446 SetLastError(ERROR_MORE_DATA);
2447 *pdwDataLen = dwDataLen;
2448 return FALSE;
2451 pBlobHeader->bType = SIMPLEBLOB;
2452 pBlobHeader->bVersion = CUR_BLOB_VERSION;
2453 pBlobHeader->reserved = 0;
2454 pBlobHeader->aiKeyAlg = pCryptKey->aiAlgid;
2456 *pAlgid = pPubKey->aiAlgid;
2458 if (!pad_data(pCryptKey->abKeyValue, pCryptKey->dwKeyLen, (BYTE*)(pAlgid+1),
2459 pPubKey->dwBlockLen, dwFlags))
2461 return FALSE;
2464 encrypt_block_impl(pPubKey->aiAlgid, PK_PUBLIC, &pPubKey->context, (BYTE*)(pAlgid+1),
2465 (BYTE*)(pAlgid+1), RSAENH_ENCRYPT);
2467 *pdwDataLen = dwDataLen;
2468 return TRUE;
2471 static BOOL crypt_export_public_key(CRYPTKEY *pCryptKey, BYTE *pbData,
2472 DWORD *pdwDataLen)
2474 BLOBHEADER *pBlobHeader = (BLOBHEADER*)pbData;
2475 RSAPUBKEY *pRSAPubKey = (RSAPUBKEY*)(pBlobHeader+1);
2476 DWORD dwDataLen;
2478 if ((pCryptKey->aiAlgid != CALG_RSA_KEYX) && (pCryptKey->aiAlgid != CALG_RSA_SIGN)) {
2479 SetLastError(NTE_BAD_KEY);
2480 return FALSE;
2483 dwDataLen = sizeof(BLOBHEADER) + sizeof(RSAPUBKEY) + pCryptKey->dwKeyLen;
2484 if (pbData) {
2485 if (*pdwDataLen < dwDataLen) {
2486 SetLastError(ERROR_MORE_DATA);
2487 *pdwDataLen = dwDataLen;
2488 return FALSE;
2491 pBlobHeader->bType = PUBLICKEYBLOB;
2492 pBlobHeader->bVersion = CUR_BLOB_VERSION;
2493 pBlobHeader->reserved = 0;
2494 pBlobHeader->aiKeyAlg = pCryptKey->aiAlgid;
2496 pRSAPubKey->magic = RSAENH_MAGIC_RSA1;
2497 pRSAPubKey->bitlen = pCryptKey->dwKeyLen << 3;
2499 export_public_key_impl((BYTE*)(pRSAPubKey+1), &pCryptKey->context,
2500 pCryptKey->dwKeyLen, &pRSAPubKey->pubexp);
2502 *pdwDataLen = dwDataLen;
2503 return TRUE;
2506 static BOOL crypt_export_private_key(CRYPTKEY *pCryptKey, BOOL force,
2507 BYTE *pbData, DWORD *pdwDataLen)
2509 BLOBHEADER *pBlobHeader = (BLOBHEADER*)pbData;
2510 RSAPUBKEY *pRSAPubKey = (RSAPUBKEY*)(pBlobHeader+1);
2511 DWORD dwDataLen;
2513 if ((pCryptKey->aiAlgid != CALG_RSA_KEYX) && (pCryptKey->aiAlgid != CALG_RSA_SIGN)) {
2514 SetLastError(NTE_BAD_KEY);
2515 return FALSE;
2517 if (!force && !(pCryptKey->dwPermissions & CRYPT_EXPORT))
2519 SetLastError(NTE_BAD_KEY_STATE);
2520 return FALSE;
2523 dwDataLen = sizeof(BLOBHEADER) + sizeof(RSAPUBKEY) +
2524 2 * pCryptKey->dwKeyLen + 5 * ((pCryptKey->dwKeyLen + 1) >> 1);
2525 if (pbData) {
2526 if (*pdwDataLen < dwDataLen) {
2527 SetLastError(ERROR_MORE_DATA);
2528 *pdwDataLen = dwDataLen;
2529 return FALSE;
2532 pBlobHeader->bType = PRIVATEKEYBLOB;
2533 pBlobHeader->bVersion = CUR_BLOB_VERSION;
2534 pBlobHeader->reserved = 0;
2535 pBlobHeader->aiKeyAlg = pCryptKey->aiAlgid;
2537 pRSAPubKey->magic = RSAENH_MAGIC_RSA2;
2538 pRSAPubKey->bitlen = pCryptKey->dwKeyLen << 3;
2540 export_private_key_impl((BYTE*)(pRSAPubKey+1), &pCryptKey->context,
2541 pCryptKey->dwKeyLen, &pRSAPubKey->pubexp);
2543 *pdwDataLen = dwDataLen;
2544 return TRUE;
2547 static BOOL crypt_export_plaintext_key(CRYPTKEY *pCryptKey, BYTE *pbData,
2548 DWORD *pdwDataLen)
2550 BLOBHEADER *pBlobHeader = (BLOBHEADER*)pbData;
2551 DWORD *pKeyLen = (DWORD*)(pBlobHeader+1);
2552 BYTE *pbKey = (BYTE*)(pKeyLen+1);
2553 DWORD dwDataLen;
2555 dwDataLen = sizeof(BLOBHEADER) + sizeof(DWORD) + pCryptKey->dwKeyLen;
2556 if (pbData) {
2557 if (*pdwDataLen < dwDataLen) {
2558 SetLastError(ERROR_MORE_DATA);
2559 *pdwDataLen = dwDataLen;
2560 return FALSE;
2563 pBlobHeader->bType = PLAINTEXTKEYBLOB;
2564 pBlobHeader->bVersion = CUR_BLOB_VERSION;
2565 pBlobHeader->reserved = 0;
2566 pBlobHeader->aiKeyAlg = pCryptKey->aiAlgid;
2568 *pKeyLen = pCryptKey->dwKeyLen;
2569 memcpy(pbKey, pCryptKey->abKeyValue, pCryptKey->dwKeyLen);
2571 *pdwDataLen = dwDataLen;
2572 return TRUE;
2574 /******************************************************************************
2575 * crypt_export_key [Internal]
2577 * Export a key into a binary large object (BLOB). Called by CPExportKey and
2578 * by store_key_pair.
2580 * PARAMS
2581 * pCryptKey [I] Key to be exported.
2582 * hPubKey [I] Key used to encrypt sensitive BLOB data.
2583 * dwBlobType [I] SIMPLEBLOB, PUBLICKEYBLOB or PRIVATEKEYBLOB.
2584 * dwFlags [I] Currently none defined.
2585 * force [I] If TRUE, the key is written no matter what the key's
2586 * permissions are. Otherwise the key's permissions are
2587 * checked before exporting.
2588 * pbData [O] Pointer to a buffer where the BLOB will be written to.
2589 * pdwDataLen [I/O] I: Size of buffer at pbData, O: Size of BLOB
2591 * RETURNS
2592 * Success: TRUE.
2593 * Failure: FALSE.
2595 static BOOL crypt_export_key(CRYPTKEY *pCryptKey, HCRYPTKEY hPubKey,
2596 DWORD dwBlobType, DWORD dwFlags, BOOL force,
2597 BYTE *pbData, DWORD *pdwDataLen)
2599 CRYPTKEY *pPubKey;
2601 if (dwFlags & CRYPT_SSL2_FALLBACK) {
2602 if (pCryptKey->aiAlgid != CALG_SSL2_MASTER) {
2603 SetLastError(NTE_BAD_KEY);
2604 return FALSE;
2608 switch ((BYTE)dwBlobType)
2610 case SIMPLEBLOB:
2611 if (!lookup_handle(&handle_table, hPubKey, RSAENH_MAGIC_KEY, (OBJECTHDR**)&pPubKey)){
2612 SetLastError(NTE_BAD_PUBLIC_KEY); /* FIXME: error_code? */
2613 return FALSE;
2615 return crypt_export_simple(pCryptKey, pPubKey, dwFlags, pbData,
2616 pdwDataLen);
2618 case PUBLICKEYBLOB:
2619 if (is_valid_handle(&handle_table, hPubKey, RSAENH_MAGIC_KEY)) {
2620 SetLastError(NTE_BAD_KEY); /* FIXME: error code? */
2621 return FALSE;
2624 return crypt_export_public_key(pCryptKey, pbData, pdwDataLen);
2626 case PRIVATEKEYBLOB:
2627 return crypt_export_private_key(pCryptKey, force, pbData, pdwDataLen);
2629 case PLAINTEXTKEYBLOB:
2630 return crypt_export_plaintext_key(pCryptKey, pbData, pdwDataLen);
2632 default:
2633 SetLastError(NTE_BAD_TYPE); /* FIXME: error code? */
2634 return FALSE;
2638 /******************************************************************************
2639 * CPExportKey (RSAENH.@)
2641 * Export a key into a binary large object (BLOB).
2643 * PARAMS
2644 * hProv [I] Key container from which a key is to be exported.
2645 * hKey [I] Key to be exported.
2646 * hPubKey [I] Key used to encrypt sensitive BLOB data.
2647 * dwBlobType [I] SIMPLEBLOB, PUBLICKEYBLOB or PRIVATEKEYBLOB.
2648 * dwFlags [I] Currently none defined.
2649 * pbData [O] Pointer to a buffer where the BLOB will be written to.
2650 * pdwDataLen [I/O] I: Size of buffer at pbData, O: Size of BLOB
2652 * RETURNS
2653 * Success: TRUE.
2654 * Failure: FALSE.
2656 BOOL WINAPI RSAENH_CPExportKey(HCRYPTPROV hProv, HCRYPTKEY hKey, HCRYPTKEY hPubKey,
2657 DWORD dwBlobType, DWORD dwFlags, BYTE *pbData, DWORD *pdwDataLen)
2659 CRYPTKEY *pCryptKey;
2661 TRACE("(hProv=%08lx, hKey=%08lx, hPubKey=%08lx, dwBlobType=%08x, dwFlags=%08x, pbData=%p,"
2662 "pdwDataLen=%p)\n", hProv, hKey, hPubKey, dwBlobType, dwFlags, pbData, pdwDataLen);
2664 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
2666 SetLastError(NTE_BAD_UID);
2667 return FALSE;
2670 if (!lookup_handle(&handle_table, hKey, RSAENH_MAGIC_KEY, (OBJECTHDR**)&pCryptKey))
2672 SetLastError(NTE_BAD_KEY);
2673 return FALSE;
2676 return crypt_export_key(pCryptKey, hPubKey, dwBlobType, dwFlags, FALSE,
2677 pbData, pdwDataLen);
2680 /******************************************************************************
2681 * release_and_install_key [Internal]
2683 * Release an existing key, if present, and replaces it with a new one.
2685 * PARAMS
2686 * hProv [I] Key container into which the key is to be imported.
2687 * src [I] Key which will replace *dest
2688 * dest [I] Points to key to be released and replaced with src
2689 * fStoreKey [I] If TRUE, the newly installed key is stored to the registry.
2691 static void release_and_install_key(HCRYPTPROV hProv, HCRYPTKEY src,
2692 HCRYPTKEY *dest, DWORD fStoreKey)
2694 RSAENH_CPDestroyKey(hProv, *dest);
2695 copy_handle(&handle_table, src, RSAENH_MAGIC_KEY, dest);
2696 if (fStoreKey)
2698 KEYCONTAINER *pKeyContainer;
2700 if (lookup_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER,
2701 (OBJECTHDR**)&pKeyContainer))
2703 store_key_container_keys(pKeyContainer);
2704 store_key_container_permissions(pKeyContainer);
2709 /******************************************************************************
2710 * import_private_key [Internal]
2712 * Import a BLOB'ed private key into a key container.
2714 * PARAMS
2715 * hProv [I] Key container into which the private key is to be imported.
2716 * pbData [I] Pointer to a buffer which holds the private key BLOB.
2717 * dwDataLen [I] Length of data in buffer at pbData.
2718 * dwFlags [I] One of:
2719 * CRYPT_EXPORTABLE: the imported key is marked exportable
2720 * fStoreKey [I] If TRUE, the imported key is stored to the registry.
2721 * phKey [O] Handle to the imported key.
2724 * NOTES
2725 * Assumes the caller has already checked the BLOBHEADER at pbData to ensure
2726 * it's a PRIVATEKEYBLOB.
2728 * RETURNS
2729 * Success: TRUE.
2730 * Failure: FALSE.
2732 static BOOL import_private_key(HCRYPTPROV hProv, const BYTE *pbData, DWORD dwDataLen,
2733 DWORD dwFlags, BOOL fStoreKey, HCRYPTKEY *phKey)
2735 KEYCONTAINER *pKeyContainer;
2736 CRYPTKEY *pCryptKey;
2737 const BLOBHEADER *pBlobHeader = (const BLOBHEADER*)pbData;
2738 const RSAPUBKEY *pRSAPubKey = (const RSAPUBKEY*)(pBlobHeader+1);
2739 BOOL ret;
2741 if (dwFlags & CRYPT_IPSEC_HMAC_KEY)
2743 FIXME("unimplemented for CRYPT_IPSEC_HMAC_KEY\n");
2744 SetLastError(NTE_BAD_FLAGS);
2745 return FALSE;
2747 if (!lookup_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER,
2748 (OBJECTHDR**)&pKeyContainer))
2750 SetLastError(NTE_BAD_UID);
2751 return FALSE;
2754 if ((dwDataLen < sizeof(BLOBHEADER) + sizeof(RSAPUBKEY)))
2756 ERR("datalen %d not long enough for a BLOBHEADER + RSAPUBKEY\n",
2757 dwDataLen);
2758 SetLastError(NTE_BAD_DATA);
2759 return FALSE;
2761 if (pRSAPubKey->magic != RSAENH_MAGIC_RSA2)
2763 ERR("unexpected magic %08x\n", pRSAPubKey->magic);
2764 SetLastError(NTE_BAD_DATA);
2765 return FALSE;
2767 if ((dwDataLen < sizeof(BLOBHEADER) + sizeof(RSAPUBKEY) +
2768 (pRSAPubKey->bitlen >> 3) + (5 * ((pRSAPubKey->bitlen+8)>>4))))
2770 DWORD expectedLen = sizeof(BLOBHEADER) + sizeof(RSAPUBKEY) +
2771 (pRSAPubKey->bitlen >> 3) + (5 * ((pRSAPubKey->bitlen+8)>>4));
2773 ERR("blob too short for pub key: expect %d, got %d\n",
2774 expectedLen, dwDataLen);
2775 SetLastError(NTE_BAD_DATA);
2776 return FALSE;
2779 *phKey = new_key(hProv, pBlobHeader->aiKeyAlg, MAKELONG(0,pRSAPubKey->bitlen), &pCryptKey);
2780 if (*phKey == (HCRYPTKEY)INVALID_HANDLE_VALUE) return FALSE;
2781 setup_key(pCryptKey);
2782 ret = import_private_key_impl((const BYTE*)(pRSAPubKey+1), &pCryptKey->context,
2783 pRSAPubKey->bitlen/8, dwDataLen, pRSAPubKey->pubexp);
2784 if (ret) {
2785 if (dwFlags & CRYPT_EXPORTABLE)
2786 pCryptKey->dwPermissions |= CRYPT_EXPORT;
2787 switch (pBlobHeader->aiKeyAlg)
2789 case AT_SIGNATURE:
2790 case CALG_RSA_SIGN:
2791 TRACE("installing signing key\n");
2792 release_and_install_key(hProv, *phKey, &pKeyContainer->hSignatureKeyPair,
2793 fStoreKey);
2794 break;
2795 case AT_KEYEXCHANGE:
2796 case CALG_RSA_KEYX:
2797 TRACE("installing key exchange key\n");
2798 release_and_install_key(hProv, *phKey, &pKeyContainer->hKeyExchangeKeyPair,
2799 fStoreKey);
2800 break;
2803 return ret;
2806 /******************************************************************************
2807 * import_public_key [Internal]
2809 * Import a BLOB'ed public key into a key container.
2811 * PARAMS
2812 * hProv [I] Key container into which the public key is to be imported.
2813 * pbData [I] Pointer to a buffer which holds the public key BLOB.
2814 * dwDataLen [I] Length of data in buffer at pbData.
2815 * dwFlags [I] One of:
2816 * CRYPT_EXPORTABLE: the imported key is marked exportable
2817 * fStoreKey [I] If TRUE, the imported key is stored to the registry.
2818 * phKey [O] Handle to the imported key.
2821 * NOTES
2822 * Assumes the caller has already checked the BLOBHEADER at pbData to ensure
2823 * it's a PUBLICKEYBLOB.
2825 * RETURNS
2826 * Success: TRUE.
2827 * Failure: FALSE.
2829 static BOOL import_public_key(HCRYPTPROV hProv, const BYTE *pbData, DWORD dwDataLen,
2830 DWORD dwFlags, BOOL fStoreKey, HCRYPTKEY *phKey)
2832 KEYCONTAINER *pKeyContainer;
2833 CRYPTKEY *pCryptKey;
2834 const BLOBHEADER *pBlobHeader = (const BLOBHEADER*)pbData;
2835 const RSAPUBKEY *pRSAPubKey = (const RSAPUBKEY*)(pBlobHeader+1);
2836 ALG_ID algID;
2837 BOOL ret;
2839 if (dwFlags & CRYPT_IPSEC_HMAC_KEY)
2841 FIXME("unimplemented for CRYPT_IPSEC_HMAC_KEY\n");
2842 SetLastError(NTE_BAD_FLAGS);
2843 return FALSE;
2845 if (!lookup_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER,
2846 (OBJECTHDR**)&pKeyContainer))
2848 SetLastError(NTE_BAD_UID);
2849 return FALSE;
2852 if ((dwDataLen < sizeof(BLOBHEADER) + sizeof(RSAPUBKEY)) ||
2853 (pRSAPubKey->magic != RSAENH_MAGIC_RSA1) ||
2854 (dwDataLen < sizeof(BLOBHEADER) + sizeof(RSAPUBKEY) + (pRSAPubKey->bitlen >> 3)))
2856 SetLastError(NTE_BAD_DATA);
2857 return FALSE;
2860 /* Since this is a public key blob, only the public key is
2861 * available, so only signature verification is possible.
2863 algID = pBlobHeader->aiKeyAlg;
2864 *phKey = new_key(hProv, algID, MAKELONG(0,pRSAPubKey->bitlen), &pCryptKey);
2865 if (*phKey == (HCRYPTKEY)INVALID_HANDLE_VALUE) return FALSE;
2866 setup_key(pCryptKey);
2867 ret = import_public_key_impl((const BYTE*)(pRSAPubKey+1), &pCryptKey->context,
2868 pRSAPubKey->bitlen >> 3, pRSAPubKey->pubexp);
2869 if (ret) {
2870 if (dwFlags & CRYPT_EXPORTABLE)
2871 pCryptKey->dwPermissions |= CRYPT_EXPORT;
2872 switch (pBlobHeader->aiKeyAlg)
2874 case AT_KEYEXCHANGE:
2875 case CALG_RSA_KEYX:
2876 TRACE("installing public key\n");
2877 release_and_install_key(hProv, *phKey, &pKeyContainer->hKeyExchangeKeyPair,
2878 fStoreKey);
2879 break;
2882 return ret;
2885 /******************************************************************************
2886 * import_symmetric_key [Internal]
2888 * Import a BLOB'ed symmetric key into a key container.
2890 * PARAMS
2891 * hProv [I] Key container into which the symmetric key is to be imported.
2892 * pbData [I] Pointer to a buffer which holds the symmetric key BLOB.
2893 * dwDataLen [I] Length of data in buffer at pbData.
2894 * hPubKey [I] Key used to decrypt sensitive BLOB data.
2895 * dwFlags [I] One of:
2896 * CRYPT_EXPORTABLE: the imported key is marked exportable
2897 * phKey [O] Handle to the imported key.
2900 * NOTES
2901 * Assumes the caller has already checked the BLOBHEADER at pbData to ensure
2902 * it's a SIMPLEBLOB.
2904 * RETURNS
2905 * Success: TRUE.
2906 * Failure: FALSE.
2908 static BOOL import_symmetric_key(HCRYPTPROV hProv, const BYTE *pbData, DWORD dwDataLen,
2909 HCRYPTKEY hPubKey, DWORD dwFlags, HCRYPTKEY *phKey)
2911 CRYPTKEY *pCryptKey, *pPubKey;
2912 const BLOBHEADER *pBlobHeader = (const BLOBHEADER*)pbData;
2913 const ALG_ID *pAlgid = (const ALG_ID*)(pBlobHeader+1);
2914 const BYTE *pbKeyStream = (const BYTE*)(pAlgid + 1);
2915 BYTE *pbDecrypted;
2916 DWORD dwKeyLen;
2918 if (dwFlags & CRYPT_IPSEC_HMAC_KEY)
2920 FIXME("unimplemented for CRYPT_IPSEC_HMAC_KEY\n");
2921 SetLastError(NTE_BAD_FLAGS);
2922 return FALSE;
2924 if (!lookup_handle(&handle_table, hPubKey, RSAENH_MAGIC_KEY, (OBJECTHDR**)&pPubKey) ||
2925 pPubKey->aiAlgid != CALG_RSA_KEYX)
2927 SetLastError(NTE_BAD_PUBLIC_KEY); /* FIXME: error code? */
2928 return FALSE;
2931 if (dwDataLen < sizeof(BLOBHEADER)+sizeof(ALG_ID)+pPubKey->dwBlockLen)
2933 SetLastError(NTE_BAD_DATA); /* FIXME: error code */
2934 return FALSE;
2937 pbDecrypted = HeapAlloc(GetProcessHeap(), 0, pPubKey->dwBlockLen);
2938 if (!pbDecrypted) return FALSE;
2939 encrypt_block_impl(pPubKey->aiAlgid, PK_PRIVATE, &pPubKey->context, pbKeyStream, pbDecrypted,
2940 RSAENH_DECRYPT);
2942 dwKeyLen = RSAENH_MAX_KEY_SIZE;
2943 if (!unpad_data(pbDecrypted, pPubKey->dwBlockLen, pbDecrypted, &dwKeyLen, dwFlags)) {
2944 HeapFree(GetProcessHeap(), 0, pbDecrypted);
2945 return FALSE;
2948 *phKey = new_key(hProv, pBlobHeader->aiKeyAlg, dwKeyLen<<19, &pCryptKey);
2949 if (*phKey == (HCRYPTKEY)INVALID_HANDLE_VALUE)
2951 HeapFree(GetProcessHeap(), 0, pbDecrypted);
2952 return FALSE;
2954 memcpy(pCryptKey->abKeyValue, pbDecrypted, dwKeyLen);
2955 HeapFree(GetProcessHeap(), 0, pbDecrypted);
2956 setup_key(pCryptKey);
2957 if (dwFlags & CRYPT_EXPORTABLE)
2958 pCryptKey->dwPermissions |= CRYPT_EXPORT;
2959 return TRUE;
2962 /******************************************************************************
2963 * import_plaintext_key [Internal]
2965 * Import a plaintext key into a key container.
2967 * PARAMS
2968 * hProv [I] Key container into which the symmetric key is to be imported.
2969 * pbData [I] Pointer to a buffer which holds the plaintext key BLOB.
2970 * dwDataLen [I] Length of data in buffer at pbData.
2971 * dwFlags [I] One of:
2972 * CRYPT_EXPORTABLE: the imported key is marked exportable
2973 * phKey [O] Handle to the imported key.
2976 * NOTES
2977 * Assumes the caller has already checked the BLOBHEADER at pbData to ensure
2978 * it's a PLAINTEXTKEYBLOB.
2980 * RETURNS
2981 * Success: TRUE.
2982 * Failure: FALSE.
2984 static BOOL import_plaintext_key(HCRYPTPROV hProv, const BYTE *pbData, DWORD dwDataLen,
2985 DWORD dwFlags, HCRYPTKEY *phKey)
2987 CRYPTKEY *pCryptKey;
2988 const BLOBHEADER *pBlobHeader = (const BLOBHEADER*)pbData;
2989 const DWORD *pKeyLen = (const DWORD *)(pBlobHeader + 1);
2990 const BYTE *pbKeyStream = (const BYTE*)(pKeyLen + 1);
2992 if (dwDataLen < sizeof(BLOBHEADER)+sizeof(DWORD)+*pKeyLen)
2994 SetLastError(NTE_BAD_DATA); /* FIXME: error code */
2995 return FALSE;
2998 if (dwFlags & CRYPT_IPSEC_HMAC_KEY)
3000 *phKey = new_key(hProv, CALG_HMAC, 0, &pCryptKey);
3001 if (*phKey == (HCRYPTKEY)INVALID_HANDLE_VALUE)
3002 return FALSE;
3003 if (*pKeyLen <= RSAENH_MIN(sizeof(pCryptKey->abKeyValue), RSAENH_HMAC_BLOCK_LEN))
3005 memcpy(pCryptKey->abKeyValue, pbKeyStream, *pKeyLen);
3006 pCryptKey->dwKeyLen = *pKeyLen;
3008 else
3010 CRYPT_DATA_BLOB blobHmacKey = { *pKeyLen, (BYTE *)pbKeyStream };
3012 /* In order to initialize an HMAC key, the key material is hashed,
3013 * and the output of the hash function is used as the key material.
3014 * Unfortunately, the way the Crypto API is designed, we don't know
3015 * the hash algorithm yet, so we have to copy the entire key
3016 * material.
3018 if (!copy_data_blob(&pCryptKey->blobHmacKey, &blobHmacKey))
3020 release_handle(&handle_table, *phKey, RSAENH_MAGIC_KEY);
3021 *phKey = (HCRYPTKEY)INVALID_HANDLE_VALUE;
3022 return FALSE;
3025 setup_key(pCryptKey);
3026 if (dwFlags & CRYPT_EXPORTABLE)
3027 pCryptKey->dwPermissions |= CRYPT_EXPORT;
3029 else
3031 *phKey = new_key(hProv, pBlobHeader->aiKeyAlg, *pKeyLen<<19, &pCryptKey);
3032 if (*phKey == (HCRYPTKEY)INVALID_HANDLE_VALUE)
3033 return FALSE;
3034 memcpy(pCryptKey->abKeyValue, pbKeyStream, *pKeyLen);
3035 setup_key(pCryptKey);
3036 if (dwFlags & CRYPT_EXPORTABLE)
3037 pCryptKey->dwPermissions |= CRYPT_EXPORT;
3039 return TRUE;
3042 /******************************************************************************
3043 * import_key [Internal]
3045 * Import a BLOB'ed key into a key container, optionally storing the key's
3046 * value to the registry.
3048 * PARAMS
3049 * hProv [I] Key container into which the key is to be imported.
3050 * pbData [I] Pointer to a buffer which holds the BLOB.
3051 * dwDataLen [I] Length of data in buffer at pbData.
3052 * hPubKey [I] Key used to decrypt sensitive BLOB data.
3053 * dwFlags [I] One of:
3054 * CRYPT_EXPORTABLE: the imported key is marked exportable
3055 * fStoreKey [I] If TRUE, the imported key is stored to the registry.
3056 * phKey [O] Handle to the imported key.
3058 * RETURNS
3059 * Success: TRUE.
3060 * Failure: FALSE.
3062 static BOOL import_key(HCRYPTPROV hProv, const BYTE *pbData, DWORD dwDataLen, HCRYPTKEY hPubKey,
3063 DWORD dwFlags, BOOL fStoreKey, HCRYPTKEY *phKey)
3065 KEYCONTAINER *pKeyContainer;
3066 const BLOBHEADER *pBlobHeader = (const BLOBHEADER*)pbData;
3068 if (!lookup_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER,
3069 (OBJECTHDR**)&pKeyContainer))
3071 SetLastError(NTE_BAD_UID);
3072 return FALSE;
3075 if (dwDataLen < sizeof(BLOBHEADER) ||
3076 pBlobHeader->bVersion != CUR_BLOB_VERSION ||
3077 pBlobHeader->reserved != 0)
3079 TRACE("bVersion = %d, reserved = %d\n", pBlobHeader->bVersion,
3080 pBlobHeader->reserved);
3081 SetLastError(NTE_BAD_DATA);
3082 return FALSE;
3085 /* If this is a verify-only context, the key is not persisted regardless of
3086 * fStoreKey's original value.
3088 fStoreKey = fStoreKey && !(dwFlags & CRYPT_VERIFYCONTEXT);
3089 TRACE("blob type: %x\n", pBlobHeader->bType);
3090 switch (pBlobHeader->bType)
3092 case PRIVATEKEYBLOB:
3093 return import_private_key(hProv, pbData, dwDataLen, dwFlags,
3094 fStoreKey, phKey);
3096 case PUBLICKEYBLOB:
3097 return import_public_key(hProv, pbData, dwDataLen, dwFlags,
3098 fStoreKey, phKey);
3100 case SIMPLEBLOB:
3101 return import_symmetric_key(hProv, pbData, dwDataLen, hPubKey,
3102 dwFlags, phKey);
3104 case PLAINTEXTKEYBLOB:
3105 return import_plaintext_key(hProv, pbData, dwDataLen, dwFlags,
3106 phKey);
3108 default:
3109 SetLastError(NTE_BAD_TYPE); /* FIXME: error code? */
3110 return FALSE;
3114 /******************************************************************************
3115 * CPImportKey (RSAENH.@)
3117 * Import a BLOB'ed key into a key container.
3119 * PARAMS
3120 * hProv [I] Key container into which the key is to be imported.
3121 * pbData [I] Pointer to a buffer which holds the BLOB.
3122 * dwDataLen [I] Length of data in buffer at pbData.
3123 * hPubKey [I] Key used to decrypt sensitive BLOB data.
3124 * dwFlags [I] One of:
3125 * CRYPT_EXPORTABLE: the imported key is marked exportable
3126 * phKey [O] Handle to the imported key.
3128 * RETURNS
3129 * Success: TRUE.
3130 * Failure: FALSE.
3132 BOOL WINAPI RSAENH_CPImportKey(HCRYPTPROV hProv, const BYTE *pbData, DWORD dwDataLen,
3133 HCRYPTKEY hPubKey, DWORD dwFlags, HCRYPTKEY *phKey)
3135 TRACE("(hProv=%08lx, pbData=%p, dwDataLen=%d, hPubKey=%08lx, dwFlags=%08x, phKey=%p)\n",
3136 hProv, pbData, dwDataLen, hPubKey, dwFlags, phKey);
3138 return import_key(hProv, pbData, dwDataLen, hPubKey, dwFlags, TRUE, phKey);
3141 /******************************************************************************
3142 * CPGenKey (RSAENH.@)
3144 * Generate a key in the key container
3146 * PARAMS
3147 * hProv [I] Key container for which a key is to be generated.
3148 * Algid [I] Crypto algorithm identifier for the key to be generated.
3149 * dwFlags [I] Upper 16 bits: Binary length of key. Lower 16 bits: Flags. See Notes
3150 * phKey [O] Handle to the generated key.
3152 * RETURNS
3153 * Success: TRUE.
3154 * Failure: FALSE.
3156 * FIXME
3157 * Flags currently not considered.
3159 * NOTES
3160 * Private key-exchange- and signature-keys can be generated with Algid AT_KEYEXCHANGE
3161 * and AT_SIGNATURE values.
3163 BOOL WINAPI RSAENH_CPGenKey(HCRYPTPROV hProv, ALG_ID Algid, DWORD dwFlags, HCRYPTKEY *phKey)
3165 KEYCONTAINER *pKeyContainer;
3166 CRYPTKEY *pCryptKey;
3168 TRACE("(hProv=%08lx, aiAlgid=%d, dwFlags=%08x, phKey=%p)\n", hProv, Algid, dwFlags, phKey);
3170 if (!lookup_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER,
3171 (OBJECTHDR**)&pKeyContainer))
3173 /* MSDN: hProv not containing valid context handle */
3174 SetLastError(NTE_BAD_UID);
3175 return FALSE;
3178 switch (Algid)
3180 case AT_SIGNATURE:
3181 case CALG_RSA_SIGN:
3182 *phKey = new_key(hProv, CALG_RSA_SIGN, dwFlags, &pCryptKey);
3183 if (pCryptKey) {
3184 new_key_impl(pCryptKey->aiAlgid, &pCryptKey->context, pCryptKey->dwKeyLen);
3185 setup_key(pCryptKey);
3186 release_and_install_key(hProv, *phKey,
3187 &pKeyContainer->hSignatureKeyPair,
3188 FALSE);
3190 break;
3192 case AT_KEYEXCHANGE:
3193 case CALG_RSA_KEYX:
3194 *phKey = new_key(hProv, CALG_RSA_KEYX, dwFlags, &pCryptKey);
3195 if (pCryptKey) {
3196 new_key_impl(pCryptKey->aiAlgid, &pCryptKey->context, pCryptKey->dwKeyLen);
3197 setup_key(pCryptKey);
3198 release_and_install_key(hProv, *phKey,
3199 &pKeyContainer->hKeyExchangeKeyPair,
3200 FALSE);
3202 break;
3204 case CALG_RC2:
3205 case CALG_RC4:
3206 case CALG_DES:
3207 case CALG_3DES_112:
3208 case CALG_3DES:
3209 case CALG_AES:
3210 case CALG_AES_128:
3211 case CALG_AES_192:
3212 case CALG_AES_256:
3213 case CALG_PCT1_MASTER:
3214 case CALG_SSL2_MASTER:
3215 case CALG_SSL3_MASTER:
3216 case CALG_TLS1_MASTER:
3217 *phKey = new_key(hProv, Algid, dwFlags, &pCryptKey);
3218 if (pCryptKey) {
3219 gen_rand_impl(pCryptKey->abKeyValue, RSAENH_MAX_KEY_SIZE);
3220 switch (Algid) {
3221 case CALG_SSL3_MASTER:
3222 pCryptKey->abKeyValue[0] = RSAENH_SSL3_VERSION_MAJOR;
3223 pCryptKey->abKeyValue[1] = RSAENH_SSL3_VERSION_MINOR;
3224 break;
3226 case CALG_TLS1_MASTER:
3227 pCryptKey->abKeyValue[0] = RSAENH_TLS1_VERSION_MAJOR;
3228 pCryptKey->abKeyValue[1] = RSAENH_TLS1_VERSION_MINOR;
3229 break;
3231 setup_key(pCryptKey);
3233 break;
3235 default:
3236 /* MSDN: Algorithm not supported specified by Algid */
3237 SetLastError(NTE_BAD_ALGID);
3238 return FALSE;
3241 return *phKey != (HCRYPTKEY)INVALID_HANDLE_VALUE;
3244 /******************************************************************************
3245 * CPGenRandom (RSAENH.@)
3247 * Generate a random byte stream.
3249 * PARAMS
3250 * hProv [I] Key container that is used to generate random bytes.
3251 * dwLen [I] Specifies the number of requested random data bytes.
3252 * pbBuffer [O] Random bytes will be stored here.
3254 * RETURNS
3255 * Success: TRUE
3256 * Failure: FALSE
3258 BOOL WINAPI RSAENH_CPGenRandom(HCRYPTPROV hProv, DWORD dwLen, BYTE *pbBuffer)
3260 TRACE("(hProv=%08lx, dwLen=%d, pbBuffer=%p)\n", hProv, dwLen, pbBuffer);
3262 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
3264 /* MSDN: hProv not containing valid context handle */
3265 SetLastError(NTE_BAD_UID);
3266 return FALSE;
3269 return gen_rand_impl(pbBuffer, dwLen);
3272 /******************************************************************************
3273 * CPGetHashParam (RSAENH.@)
3275 * Query parameters of an hash object.
3277 * PARAMS
3278 * hProv [I] The kea container, which the hash belongs to.
3279 * hHash [I] The hash object that is to be queried.
3280 * dwParam [I] Specifies the parameter that is to be queried.
3281 * pbData [I] Pointer to the buffer where the parameter value will be stored.
3282 * pdwDataLen [I/O] I: Buffer length at pbData, O: Length of the parameter value.
3283 * dwFlags [I] None currently defined.
3285 * RETURNS
3286 * Success: TRUE
3287 * Failure: FALSE
3289 * NOTES
3290 * Valid dwParams are: HP_ALGID, HP_HASHSIZE, HP_HASHVALUE. The hash will be
3291 * finalized if HP_HASHVALUE is queried.
3293 BOOL WINAPI RSAENH_CPGetHashParam(HCRYPTPROV hProv, HCRYPTHASH hHash, DWORD dwParam, BYTE *pbData,
3294 DWORD *pdwDataLen, DWORD dwFlags)
3296 CRYPTHASH *pCryptHash;
3298 TRACE("(hProv=%08lx, hHash=%08lx, dwParam=%08x, pbData=%p, pdwDataLen=%p, dwFlags=%08x)\n",
3299 hProv, hHash, dwParam, pbData, pdwDataLen, dwFlags);
3301 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
3303 SetLastError(NTE_BAD_UID);
3304 return FALSE;
3307 if (dwFlags)
3309 SetLastError(NTE_BAD_FLAGS);
3310 return FALSE;
3313 if (!lookup_handle(&handle_table, hHash, RSAENH_MAGIC_HASH,
3314 (OBJECTHDR**)&pCryptHash))
3316 SetLastError(NTE_BAD_HASH);
3317 return FALSE;
3320 if (!pdwDataLen)
3322 SetLastError(ERROR_INVALID_PARAMETER);
3323 return FALSE;
3326 switch (dwParam)
3328 case HP_ALGID:
3329 return copy_param(pbData, pdwDataLen, (const BYTE*)&pCryptHash->aiAlgid,
3330 sizeof(ALG_ID));
3332 case HP_HASHSIZE:
3333 return copy_param(pbData, pdwDataLen, (const BYTE*)&pCryptHash->dwHashSize,
3334 sizeof(DWORD));
3336 case HP_HASHVAL:
3337 if (pCryptHash->aiAlgid == CALG_TLS1PRF) {
3338 return tls1_prf(hProv, pCryptHash->hKey, &pCryptHash->tpPRFParams.blobLabel,
3339 &pCryptHash->tpPRFParams.blobSeed, pbData, *pdwDataLen);
3342 if ( pbData == NULL ) {
3343 *pdwDataLen = pCryptHash->dwHashSize;
3344 return TRUE;
3347 if (pbData && (pCryptHash->dwState != RSAENH_HASHSTATE_FINISHED))
3349 finalize_hash(pCryptHash);
3350 pCryptHash->dwState = RSAENH_HASHSTATE_FINISHED;
3353 return copy_param(pbData, pdwDataLen, pCryptHash->abHashValue,
3354 pCryptHash->dwHashSize);
3356 default:
3357 SetLastError(NTE_BAD_TYPE);
3358 return FALSE;
3362 /******************************************************************************
3363 * CPSetKeyParam (RSAENH.@)
3365 * Set a parameter of a key object
3367 * PARAMS
3368 * hProv [I] The key container to which the key belongs.
3369 * hKey [I] The key for which a parameter is to be set.
3370 * dwParam [I] Parameter type. See Notes.
3371 * pbData [I] Pointer to the parameter value.
3372 * dwFlags [I] Currently none defined.
3374 * RETURNS
3375 * Success: TRUE.
3376 * Failure: FALSE.
3378 * NOTES:
3379 * Defined dwParam types are:
3380 * - KP_MODE: Values MODE_CBC, MODE_ECB, MODE_CFB.
3381 * - KP_MODE_BITS: Shift width for cipher feedback mode. (Currently ignored by MS CSP's)
3382 * - KP_PERMISSIONS: Or'ed combination of CRYPT_ENCRYPT, CRYPT_DECRYPT,
3383 * CRYPT_EXPORT, CRYPT_READ, CRYPT_WRITE, CRYPT_MAC
3384 * - KP_IV: Initialization vector
3386 BOOL WINAPI RSAENH_CPSetKeyParam(HCRYPTPROV hProv, HCRYPTKEY hKey, DWORD dwParam, BYTE *pbData,
3387 DWORD dwFlags)
3389 CRYPTKEY *pCryptKey;
3391 TRACE("(hProv=%08lx, hKey=%08lx, dwParam=%08x, pbData=%p, dwFlags=%08x)\n", hProv, hKey,
3392 dwParam, pbData, dwFlags);
3394 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
3396 SetLastError(NTE_BAD_UID);
3397 return FALSE;
3400 if (dwFlags) {
3401 SetLastError(NTE_BAD_FLAGS);
3402 return FALSE;
3405 if (!lookup_handle(&handle_table, hKey, RSAENH_MAGIC_KEY, (OBJECTHDR**)&pCryptKey))
3407 SetLastError(NTE_BAD_KEY);
3408 return FALSE;
3411 switch (dwParam) {
3412 case KP_PADDING:
3413 /* The MS providers only support PKCS5_PADDING */
3414 if (*(DWORD *)pbData != PKCS5_PADDING) {
3415 SetLastError(NTE_BAD_DATA);
3416 return FALSE;
3418 return TRUE;
3420 case KP_MODE:
3421 pCryptKey->dwMode = *(DWORD*)pbData;
3422 return TRUE;
3424 case KP_MODE_BITS:
3425 pCryptKey->dwModeBits = *(DWORD*)pbData;
3426 return TRUE;
3428 case KP_PERMISSIONS:
3430 DWORD perms = *(DWORD *)pbData;
3432 if ((perms & CRYPT_EXPORT) &&
3433 !(pCryptKey->dwPermissions & CRYPT_EXPORT))
3435 SetLastError(NTE_BAD_DATA);
3436 return FALSE;
3438 else if (!(perms & CRYPT_EXPORT) &&
3439 (pCryptKey->dwPermissions & CRYPT_EXPORT))
3441 /* Clearing the export permission appears to be ignored,
3442 * see tests.
3444 perms |= CRYPT_EXPORT;
3446 pCryptKey->dwPermissions = perms;
3447 return TRUE;
3450 case KP_IV:
3451 memcpy(pCryptKey->abInitVector, pbData, pCryptKey->dwBlockLen);
3452 setup_key(pCryptKey);
3453 return TRUE;
3455 case KP_SALT:
3456 switch (pCryptKey->aiAlgid) {
3457 case CALG_RC2:
3458 case CALG_RC4:
3459 if (!pbData)
3461 SetLastError(ERROR_INVALID_PARAMETER);
3462 return FALSE;
3464 /* MSDN: the base provider always sets eleven bytes of
3465 * salt value.
3467 memcpy(pCryptKey->abKeyValue + pCryptKey->dwKeyLen,
3468 pbData, 11);
3469 pCryptKey->dwSaltLen = 11;
3470 setup_key(pCryptKey);
3471 /* Strange but true: salt length reset to 0 after setting
3472 * it via KP_SALT.
3474 pCryptKey->dwSaltLen = 0;
3475 break;
3476 default:
3477 SetLastError(NTE_BAD_KEY);
3478 return FALSE;
3480 return TRUE;
3482 case KP_SALT_EX:
3484 CRYPT_INTEGER_BLOB *blob = (CRYPT_INTEGER_BLOB *)pbData;
3486 /* salt length can't be greater than 184 bits = 24 bytes */
3487 if (blob->cbData > 24)
3489 SetLastError(NTE_BAD_DATA);
3490 return FALSE;
3492 memcpy(pCryptKey->abKeyValue + pCryptKey->dwKeyLen, blob->pbData,
3493 blob->cbData);
3494 pCryptKey->dwSaltLen = blob->cbData;
3495 setup_key(pCryptKey);
3496 return TRUE;
3499 case KP_EFFECTIVE_KEYLEN:
3500 switch (pCryptKey->aiAlgid) {
3501 case CALG_RC2:
3502 if (!pbData)
3504 SetLastError(ERROR_INVALID_PARAMETER);
3505 return FALSE;
3507 else if (!*(DWORD *)pbData || *(DWORD *)pbData > 1024)
3509 SetLastError(NTE_BAD_DATA);
3510 return FALSE;
3512 else
3514 pCryptKey->dwEffectiveKeyLen = *(DWORD *)pbData;
3515 setup_key(pCryptKey);
3517 break;
3518 default:
3519 SetLastError(NTE_BAD_TYPE);
3520 return FALSE;
3522 return TRUE;
3524 case KP_SCHANNEL_ALG:
3525 switch (((PSCHANNEL_ALG)pbData)->dwUse) {
3526 case SCHANNEL_ENC_KEY:
3527 memcpy(&pCryptKey->siSChannelInfo.saEncAlg, pbData, sizeof(SCHANNEL_ALG));
3528 break;
3530 case SCHANNEL_MAC_KEY:
3531 memcpy(&pCryptKey->siSChannelInfo.saMACAlg, pbData, sizeof(SCHANNEL_ALG));
3532 break;
3534 default:
3535 SetLastError(NTE_FAIL); /* FIXME: error code */
3536 return FALSE;
3538 return TRUE;
3540 case KP_CLIENT_RANDOM:
3541 return copy_data_blob(&pCryptKey->siSChannelInfo.blobClientRandom, (PCRYPT_DATA_BLOB)pbData);
3543 case KP_SERVER_RANDOM:
3544 return copy_data_blob(&pCryptKey->siSChannelInfo.blobServerRandom, (PCRYPT_DATA_BLOB)pbData);
3546 default:
3547 SetLastError(NTE_BAD_TYPE);
3548 return FALSE;
3552 /******************************************************************************
3553 * CPGetKeyParam (RSAENH.@)
3555 * Query a key parameter.
3557 * PARAMS
3558 * hProv [I] The key container, which the key belongs to.
3559 * hHash [I] The key object that is to be queried.
3560 * dwParam [I] Specifies the parameter that is to be queried.
3561 * pbData [I] Pointer to the buffer where the parameter value will be stored.
3562 * pdwDataLen [I/O] I: Buffer length at pbData, O: Length of the parameter value.
3563 * dwFlags [I] None currently defined.
3565 * RETURNS
3566 * Success: TRUE
3567 * Failure: FALSE
3569 * NOTES
3570 * Defined dwParam types are:
3571 * - KP_MODE: Values MODE_CBC, MODE_ECB, MODE_CFB.
3572 * - KP_MODE_BITS: Shift width for cipher feedback mode.
3573 * (Currently ignored by MS CSP's - always eight)
3574 * - KP_PERMISSIONS: Or'ed combination of CRYPT_ENCRYPT, CRYPT_DECRYPT,
3575 * CRYPT_EXPORT, CRYPT_READ, CRYPT_WRITE, CRYPT_MAC
3576 * - KP_IV: Initialization vector.
3577 * - KP_KEYLEN: Bitwidth of the key.
3578 * - KP_BLOCKLEN: Size of a block cipher block.
3579 * - KP_SALT: Salt value.
3581 BOOL WINAPI RSAENH_CPGetKeyParam(HCRYPTPROV hProv, HCRYPTKEY hKey, DWORD dwParam, BYTE *pbData,
3582 DWORD *pdwDataLen, DWORD dwFlags)
3584 CRYPTKEY *pCryptKey;
3585 DWORD dwValue;
3587 TRACE("(hProv=%08lx, hKey=%08lx, dwParam=%08x, pbData=%p, pdwDataLen=%p dwFlags=%08x)\n",
3588 hProv, hKey, dwParam, pbData, pdwDataLen, dwFlags);
3590 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
3592 SetLastError(NTE_BAD_UID);
3593 return FALSE;
3596 if (dwFlags) {
3597 SetLastError(NTE_BAD_FLAGS);
3598 return FALSE;
3601 if (!lookup_handle(&handle_table, hKey, RSAENH_MAGIC_KEY, (OBJECTHDR**)&pCryptKey))
3603 SetLastError(NTE_BAD_KEY);
3604 return FALSE;
3607 switch (dwParam)
3609 case KP_IV:
3610 return copy_param(pbData, pdwDataLen, pCryptKey->abInitVector,
3611 pCryptKey->dwBlockLen);
3613 case KP_SALT:
3614 switch (pCryptKey->aiAlgid) {
3615 case CALG_RC2:
3616 case CALG_RC4:
3617 return copy_param(pbData, pdwDataLen,
3618 &pCryptKey->abKeyValue[pCryptKey->dwKeyLen],
3619 pCryptKey->dwSaltLen);
3620 default:
3621 SetLastError(NTE_BAD_KEY);
3622 return FALSE;
3625 case KP_PADDING:
3626 dwValue = PKCS5_PADDING;
3627 return copy_param(pbData, pdwDataLen, (const BYTE*)&dwValue, sizeof(DWORD));
3629 case KP_KEYLEN:
3630 dwValue = pCryptKey->dwKeyLen << 3;
3631 return copy_param(pbData, pdwDataLen, (const BYTE*)&dwValue, sizeof(DWORD));
3633 case KP_EFFECTIVE_KEYLEN:
3634 if (pCryptKey->dwEffectiveKeyLen)
3635 dwValue = pCryptKey->dwEffectiveKeyLen;
3636 else
3637 dwValue = pCryptKey->dwKeyLen << 3;
3638 return copy_param(pbData, pdwDataLen, (const BYTE*)&dwValue, sizeof(DWORD));
3640 case KP_BLOCKLEN:
3641 dwValue = pCryptKey->dwBlockLen << 3;
3642 return copy_param(pbData, pdwDataLen, (const BYTE*)&dwValue, sizeof(DWORD));
3644 case KP_MODE:
3645 return copy_param(pbData, pdwDataLen, (const BYTE*)&pCryptKey->dwMode, sizeof(DWORD));
3647 case KP_MODE_BITS:
3648 return copy_param(pbData, pdwDataLen, (const BYTE*)&pCryptKey->dwModeBits,
3649 sizeof(DWORD));
3651 case KP_PERMISSIONS:
3652 return copy_param(pbData, pdwDataLen, (const BYTE*)&pCryptKey->dwPermissions,
3653 sizeof(DWORD));
3655 case KP_ALGID:
3656 return copy_param(pbData, pdwDataLen, (const BYTE*)&pCryptKey->aiAlgid, sizeof(DWORD));
3658 default:
3659 SetLastError(NTE_BAD_TYPE);
3660 return FALSE;
3664 /******************************************************************************
3665 * CPGetProvParam (RSAENH.@)
3667 * Query a CSP parameter.
3669 * PARAMS
3670 * hProv [I] The key container that is to be queried.
3671 * dwParam [I] Specifies the parameter that is to be queried.
3672 * pbData [I] Pointer to the buffer where the parameter value will be stored.
3673 * pdwDataLen [I/O] I: Buffer length at pbData, O: Length of the parameter value.
3674 * dwFlags [I] CRYPT_FIRST: Start enumeration (for PP_ENUMALGS{_EX}).
3676 * RETURNS
3677 * Success: TRUE
3678 * Failure: FALSE
3679 * NOTES:
3680 * Defined dwParam types:
3681 * - PP_CONTAINER: Name of the key container.
3682 * - PP_NAME: Name of the cryptographic service provider.
3683 * - PP_SIG_KEYSIZE_INC: RSA signature keywidth granularity in bits.
3684 * - PP_KEYX_KEYSIZE_INC: RSA key-exchange keywidth granularity in bits.
3685 * - PP_ENUMALGS{_EX}: Query provider capabilities.
3686 * - PP_KEYSET_SEC_DESCR: Retrieve security descriptor on container.
3688 BOOL WINAPI RSAENH_CPGetProvParam(HCRYPTPROV hProv, DWORD dwParam, BYTE *pbData,
3689 DWORD *pdwDataLen, DWORD dwFlags)
3691 KEYCONTAINER *pKeyContainer;
3692 PROV_ENUMALGS provEnumalgs;
3693 DWORD dwTemp;
3694 HKEY hKey;
3696 /* This is for dwParam PP_CRYPT_COUNT_KEY_USE.
3697 * IE6 SP1 asks for it in the 'About' dialog.
3698 * Returning this BLOB seems to satisfy IE. The marked 0x00 seem
3699 * to be 'don't care's. If you know anything more specific about
3700 * this provider parameter, please report to wine-devel@winehq.org */
3701 static const BYTE abWTF[96] = {
3702 0xb0, 0x25, 0x63, 0x86, 0x9c, 0xab, 0xb6, 0x37,
3703 0xe8, 0x82, /**/0x00,/**/ 0x72, 0x06, 0xb2, /**/0x00,/**/ 0x3b,
3704 0x60, 0x35, /**/0x00,/**/ 0x3b, 0x88, 0xce, /**/0x00,/**/ 0x82,
3705 0xbc, 0x7a, /**/0x00,/**/ 0xb7, 0x4f, 0x7e, /**/0x00,/**/ 0xde,
3706 0x92, 0xf1, /**/0x00,/**/ 0x83, 0xea, 0x5e, /**/0x00,/**/ 0xc8,
3707 0x12, 0x1e, 0xd4, 0x06, 0xf7, 0x66, /**/0x00,/**/ 0x01,
3708 0x29, 0xa4, /**/0x00,/**/ 0xf8, 0x24, 0x0c, /**/0x00,/**/ 0x33,
3709 0x06, 0x80, /**/0x00,/**/ 0x02, 0x46, 0x0b, /**/0x00,/**/ 0x6d,
3710 0x5b, 0xca, /**/0x00,/**/ 0x9a, 0x10, 0xf0, /**/0x00,/**/ 0x05,
3711 0x19, 0xd0, /**/0x00,/**/ 0x2c, 0xf6, 0x27, /**/0x00,/**/ 0xaa,
3712 0x7c, 0x6f, /**/0x00,/**/ 0xb9, 0xd8, 0x72, /**/0x00,/**/ 0x03,
3713 0xf3, 0x81, /**/0x00,/**/ 0xfa, 0xe8, 0x26, /**/0x00,/**/ 0xca
3716 TRACE("(hProv=%08lx, dwParam=%08x, pbData=%p, pdwDataLen=%p, dwFlags=%08x)\n",
3717 hProv, dwParam, pbData, pdwDataLen, dwFlags);
3719 if (!pdwDataLen) {
3720 SetLastError(ERROR_INVALID_PARAMETER);
3721 return FALSE;
3724 if (!lookup_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER,
3725 (OBJECTHDR**)&pKeyContainer))
3727 /* MSDN: hProv not containing valid context handle */
3728 SetLastError(NTE_BAD_UID);
3729 return FALSE;
3732 switch (dwParam)
3734 case PP_CONTAINER:
3735 case PP_UNIQUE_CONTAINER:/* MSDN says we can return the same value as PP_CONTAINER */
3736 return copy_param(pbData, pdwDataLen, (const BYTE*)pKeyContainer->szName,
3737 strlen(pKeyContainer->szName)+1);
3739 case PP_NAME:
3740 return copy_param(pbData, pdwDataLen, (const BYTE*)pKeyContainer->szProvName,
3741 strlen(pKeyContainer->szProvName)+1);
3743 case PP_PROVTYPE:
3744 dwTemp = PROV_RSA_FULL;
3745 return copy_param(pbData, pdwDataLen, (const BYTE*)&dwTemp, sizeof(dwTemp));
3747 case PP_KEYSPEC:
3748 dwTemp = AT_SIGNATURE | AT_KEYEXCHANGE;
3749 return copy_param(pbData, pdwDataLen, (const BYTE*)&dwTemp, sizeof(dwTemp));
3751 case PP_KEYSET_TYPE:
3752 dwTemp = pKeyContainer->dwFlags & CRYPT_MACHINE_KEYSET;
3753 return copy_param(pbData, pdwDataLen, (const BYTE*)&dwTemp, sizeof(dwTemp));
3755 case PP_KEYSTORAGE:
3756 dwTemp = CRYPT_SEC_DESCR;
3757 return copy_param(pbData, pdwDataLen, (const BYTE*)&dwTemp, sizeof(dwTemp));
3759 case PP_SIG_KEYSIZE_INC:
3760 case PP_KEYX_KEYSIZE_INC:
3761 dwTemp = 8;
3762 return copy_param(pbData, pdwDataLen, (const BYTE*)&dwTemp, sizeof(dwTemp));
3764 case PP_IMPTYPE:
3765 dwTemp = CRYPT_IMPL_SOFTWARE;
3766 return copy_param(pbData, pdwDataLen, (const BYTE*)&dwTemp, sizeof(dwTemp));
3768 case PP_VERSION:
3769 dwTemp = 0x00000200;
3770 return copy_param(pbData, pdwDataLen, (const BYTE*)&dwTemp, sizeof(dwTemp));
3772 case PP_ENUMCONTAINERS:
3773 if ((dwFlags & CRYPT_FIRST) == CRYPT_FIRST) pKeyContainer->dwEnumContainersCtr = 0;
3775 if (!pbData) {
3776 *pdwDataLen = (DWORD)MAX_PATH + 1;
3777 return TRUE;
3780 if (!open_container_key("", dwFlags, KEY_READ, &hKey))
3782 SetLastError(ERROR_NO_MORE_ITEMS);
3783 return FALSE;
3786 dwTemp = *pdwDataLen;
3787 switch (RegEnumKeyExA(hKey, pKeyContainer->dwEnumContainersCtr, (LPSTR)pbData, &dwTemp,
3788 NULL, NULL, NULL, NULL))
3790 case ERROR_MORE_DATA:
3791 *pdwDataLen = (DWORD)MAX_PATH + 1;
3793 case ERROR_SUCCESS:
3794 pKeyContainer->dwEnumContainersCtr++;
3795 RegCloseKey(hKey);
3796 return TRUE;
3798 case ERROR_NO_MORE_ITEMS:
3799 default:
3800 SetLastError(ERROR_NO_MORE_ITEMS);
3801 RegCloseKey(hKey);
3802 return FALSE;
3805 case PP_ENUMALGS:
3806 case PP_ENUMALGS_EX:
3807 if (((pKeyContainer->dwEnumAlgsCtr >= RSAENH_MAX_ENUMALGS-1) ||
3808 (!aProvEnumAlgsEx[pKeyContainer->dwPersonality]
3809 [pKeyContainer->dwEnumAlgsCtr+1].aiAlgid)) &&
3810 ((dwFlags & CRYPT_FIRST) != CRYPT_FIRST))
3812 SetLastError(ERROR_NO_MORE_ITEMS);
3813 return FALSE;
3816 if (dwParam == PP_ENUMALGS) {
3817 if (pbData && (*pdwDataLen >= sizeof(PROV_ENUMALGS)))
3818 pKeyContainer->dwEnumAlgsCtr = ((dwFlags & CRYPT_FIRST) == CRYPT_FIRST) ?
3819 0 : pKeyContainer->dwEnumAlgsCtr+1;
3821 provEnumalgs.aiAlgid = aProvEnumAlgsEx
3822 [pKeyContainer->dwPersonality][pKeyContainer->dwEnumAlgsCtr].aiAlgid;
3823 provEnumalgs.dwBitLen = aProvEnumAlgsEx
3824 [pKeyContainer->dwPersonality][pKeyContainer->dwEnumAlgsCtr].dwDefaultLen;
3825 provEnumalgs.dwNameLen = aProvEnumAlgsEx
3826 [pKeyContainer->dwPersonality][pKeyContainer->dwEnumAlgsCtr].dwNameLen;
3827 memcpy(provEnumalgs.szName, aProvEnumAlgsEx
3828 [pKeyContainer->dwPersonality][pKeyContainer->dwEnumAlgsCtr].szName,
3829 20*sizeof(CHAR));
3831 return copy_param(pbData, pdwDataLen, (const BYTE*)&provEnumalgs,
3832 sizeof(PROV_ENUMALGS));
3833 } else {
3834 if (pbData && (*pdwDataLen >= sizeof(PROV_ENUMALGS_EX)))
3835 pKeyContainer->dwEnumAlgsCtr = ((dwFlags & CRYPT_FIRST) == CRYPT_FIRST) ?
3836 0 : pKeyContainer->dwEnumAlgsCtr+1;
3838 return copy_param(pbData, pdwDataLen,
3839 (const BYTE*)&aProvEnumAlgsEx
3840 [pKeyContainer->dwPersonality][pKeyContainer->dwEnumAlgsCtr],
3841 sizeof(PROV_ENUMALGS_EX));
3844 case PP_CRYPT_COUNT_KEY_USE: /* Asked for by IE About dialog */
3845 return copy_param(pbData, pdwDataLen, abWTF, sizeof(abWTF));
3847 case PP_KEYSET_SEC_DESCR:
3849 SECURITY_DESCRIPTOR *sd;
3850 DWORD err, len, flags = (pKeyContainer->dwFlags & CRYPT_MACHINE_KEYSET);
3852 if (!open_container_key(pKeyContainer->szName, flags, KEY_READ, &hKey))
3854 SetLastError(NTE_BAD_KEYSET);
3855 return FALSE;
3858 err = GetSecurityInfo(hKey, SE_REGISTRY_KEY, dwFlags, NULL, NULL, NULL, NULL, (void **)&sd);
3859 RegCloseKey(hKey);
3860 if (err)
3862 SetLastError(err);
3863 return FALSE;
3866 len = GetSecurityDescriptorLength(sd);
3867 if (*pdwDataLen >= len) memcpy(pbData, sd, len);
3868 else SetLastError(ERROR_INSUFFICIENT_BUFFER);
3869 *pdwDataLen = len;
3871 LocalFree(sd);
3872 return TRUE;
3875 default:
3876 /* MSDN: Unknown parameter number in dwParam */
3877 SetLastError(NTE_BAD_TYPE);
3878 return FALSE;
3882 /******************************************************************************
3883 * CPDeriveKey (RSAENH.@)
3885 * Derives a key from a hash value.
3887 * PARAMS
3888 * hProv [I] Key container for which a key is to be generated.
3889 * Algid [I] Crypto algorithm identifier for the key to be generated.
3890 * hBaseData [I] Hash from whose value the key will be derived.
3891 * dwFlags [I] See Notes.
3892 * phKey [O] The generated key.
3894 * RETURNS
3895 * Success: TRUE
3896 * Failure: FALSE
3898 * NOTES
3899 * Defined flags:
3900 * - CRYPT_EXPORTABLE: Key can be exported.
3901 * - CRYPT_NO_SALT: No salt is used for 40 bit keys.
3902 * - CRYPT_CREATE_SALT: Use remaining bits as salt value.
3904 BOOL WINAPI RSAENH_CPDeriveKey(HCRYPTPROV hProv, ALG_ID Algid, HCRYPTHASH hBaseData,
3905 DWORD dwFlags, HCRYPTKEY *phKey)
3907 CRYPTKEY *pCryptKey, *pMasterKey;
3908 CRYPTHASH *pCryptHash;
3909 BYTE abHashValue[RSAENH_MAX_HASH_SIZE*2];
3910 DWORD dwLen;
3912 TRACE("(hProv=%08lx, Algid=%d, hBaseData=%08lx, dwFlags=%08x phKey=%p)\n", hProv, Algid,
3913 hBaseData, dwFlags, phKey);
3915 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
3917 SetLastError(NTE_BAD_UID);
3918 return FALSE;
3921 if (!lookup_handle(&handle_table, hBaseData, RSAENH_MAGIC_HASH,
3922 (OBJECTHDR**)&pCryptHash))
3924 SetLastError(NTE_BAD_HASH);
3925 return FALSE;
3928 if (!phKey)
3930 SetLastError(ERROR_INVALID_PARAMETER);
3931 return FALSE;
3934 switch (GET_ALG_CLASS(Algid))
3936 case ALG_CLASS_DATA_ENCRYPT:
3938 int need_padding;
3939 *phKey = new_key(hProv, Algid, dwFlags, &pCryptKey);
3940 if (*phKey == (HCRYPTKEY)INVALID_HANDLE_VALUE) return FALSE;
3943 * We derive the key material from the hash.
3944 * If the hash value is not large enough for the claimed key, we have to construct
3945 * a larger binary value based on the hash. This is documented in MSDN: CryptDeriveKey.
3947 dwLen = RSAENH_MAX_HASH_SIZE;
3948 RSAENH_CPGetHashParam(pCryptHash->hProv, hBaseData, HP_HASHVAL, abHashValue, &dwLen, 0);
3951 * The usage of padding seems to vary from algorithm to algorithm.
3952 * For now the only different case found was for AES with 128 bit key.
3954 switch(Algid)
3956 case CALG_AES_128:
3957 /* To reduce the chance of regressions we will only deviate
3958 * from the old behavior for the tested hash lengths */
3959 if (dwLen == 16 || dwLen == 20)
3961 need_padding = 1;
3962 break;
3964 default:
3965 need_padding = dwLen < pCryptKey->dwKeyLen;
3968 if (need_padding) {
3969 BYTE pad1[RSAENH_HMAC_DEF_PAD_LEN], pad2[RSAENH_HMAC_DEF_PAD_LEN];
3970 BYTE old_hashval[RSAENH_MAX_HASH_SIZE];
3971 DWORD i;
3973 memcpy(old_hashval, pCryptHash->abHashValue, RSAENH_MAX_HASH_SIZE);
3975 for (i=0; i<RSAENH_HMAC_DEF_PAD_LEN; i++) {
3976 pad1[i] = RSAENH_HMAC_DEF_IPAD_CHAR ^ (i<dwLen ? abHashValue[i] : 0);
3977 pad2[i] = RSAENH_HMAC_DEF_OPAD_CHAR ^ (i<dwLen ? abHashValue[i] : 0);
3980 init_hash(pCryptHash);
3981 update_hash(pCryptHash, pad1, RSAENH_HMAC_DEF_PAD_LEN);
3982 finalize_hash(pCryptHash);
3983 memcpy(abHashValue, pCryptHash->abHashValue, pCryptHash->dwHashSize);
3985 init_hash(pCryptHash);
3986 update_hash(pCryptHash, pad2, RSAENH_HMAC_DEF_PAD_LEN);
3987 finalize_hash(pCryptHash);
3988 memcpy(abHashValue+pCryptHash->dwHashSize, pCryptHash->abHashValue,
3989 pCryptHash->dwHashSize);
3991 memcpy(pCryptHash->abHashValue, old_hashval, RSAENH_MAX_HASH_SIZE);
3994 memcpy(pCryptKey->abKeyValue, abHashValue,
3995 RSAENH_MIN(pCryptKey->dwKeyLen, sizeof(pCryptKey->abKeyValue)));
3996 break;
3998 case ALG_CLASS_MSG_ENCRYPT:
3999 if (!lookup_handle(&handle_table, pCryptHash->hKey, RSAENH_MAGIC_KEY,
4000 (OBJECTHDR**)&pMasterKey))
4002 SetLastError(NTE_FAIL); /* FIXME error code */
4003 return FALSE;
4006 switch (Algid)
4008 /* See RFC 2246, chapter 6.3 Key calculation */
4009 case CALG_SCHANNEL_ENC_KEY:
4010 if (!pMasterKey->siSChannelInfo.saEncAlg.Algid ||
4011 !pMasterKey->siSChannelInfo.saEncAlg.cBits)
4013 SetLastError(NTE_BAD_FLAGS);
4014 return FALSE;
4016 *phKey = new_key(hProv, pMasterKey->siSChannelInfo.saEncAlg.Algid,
4017 MAKELONG(LOWORD(dwFlags),pMasterKey->siSChannelInfo.saEncAlg.cBits),
4018 &pCryptKey);
4019 if (*phKey == (HCRYPTKEY)INVALID_HANDLE_VALUE) return FALSE;
4020 memcpy(pCryptKey->abKeyValue,
4021 pCryptHash->abHashValue + (
4022 2 * (pMasterKey->siSChannelInfo.saMACAlg.cBits / 8) +
4023 ((dwFlags & CRYPT_SERVER) ?
4024 (pMasterKey->siSChannelInfo.saEncAlg.cBits / 8) : 0)),
4025 pMasterKey->siSChannelInfo.saEncAlg.cBits / 8);
4026 memcpy(pCryptKey->abInitVector,
4027 pCryptHash->abHashValue + (
4028 2 * (pMasterKey->siSChannelInfo.saMACAlg.cBits / 8) +
4029 2 * (pMasterKey->siSChannelInfo.saEncAlg.cBits / 8) +
4030 ((dwFlags & CRYPT_SERVER) ? pCryptKey->dwBlockLen : 0)),
4031 pCryptKey->dwBlockLen);
4032 break;
4034 case CALG_SCHANNEL_MAC_KEY:
4035 *phKey = new_key(hProv, Algid,
4036 MAKELONG(LOWORD(dwFlags),pMasterKey->siSChannelInfo.saMACAlg.cBits),
4037 &pCryptKey);
4038 if (*phKey == (HCRYPTKEY)INVALID_HANDLE_VALUE) return FALSE;
4039 memcpy(pCryptKey->abKeyValue,
4040 pCryptHash->abHashValue + ((dwFlags & CRYPT_SERVER) ?
4041 pMasterKey->siSChannelInfo.saMACAlg.cBits / 8 : 0),
4042 pMasterKey->siSChannelInfo.saMACAlg.cBits / 8);
4043 break;
4045 default:
4046 SetLastError(NTE_BAD_ALGID);
4047 return FALSE;
4049 break;
4051 default:
4052 SetLastError(NTE_BAD_ALGID);
4053 return FALSE;
4056 setup_key(pCryptKey);
4057 return TRUE;
4060 /******************************************************************************
4061 * CPGetUserKey (RSAENH.@)
4063 * Returns a handle to the user's private key-exchange- or signature-key.
4065 * PARAMS
4066 * hProv [I] The key container from which a user key is requested.
4067 * dwKeySpec [I] AT_KEYEXCHANGE or AT_SIGNATURE
4068 * phUserKey [O] Handle to the requested key or INVALID_HANDLE_VALUE in case of failure.
4070 * RETURNS
4071 * Success: TRUE.
4072 * Failure: FALSE.
4074 * NOTE
4075 * A newly created key container does not contain private user key. Create them with CPGenKey.
4077 BOOL WINAPI RSAENH_CPGetUserKey(HCRYPTPROV hProv, DWORD dwKeySpec, HCRYPTKEY *phUserKey)
4079 KEYCONTAINER *pKeyContainer;
4081 TRACE("(hProv=%08lx, dwKeySpec=%08x, phUserKey=%p)\n", hProv, dwKeySpec, phUserKey);
4083 if (!lookup_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER,
4084 (OBJECTHDR**)&pKeyContainer))
4086 /* MSDN: hProv not containing valid context handle */
4087 SetLastError(NTE_BAD_UID);
4088 return FALSE;
4091 switch (dwKeySpec)
4093 case AT_KEYEXCHANGE:
4094 copy_handle(&handle_table, pKeyContainer->hKeyExchangeKeyPair, RSAENH_MAGIC_KEY,
4095 phUserKey);
4096 break;
4098 case AT_SIGNATURE:
4099 copy_handle(&handle_table, pKeyContainer->hSignatureKeyPair, RSAENH_MAGIC_KEY,
4100 phUserKey);
4101 break;
4103 default:
4104 *phUserKey = (HCRYPTKEY)INVALID_HANDLE_VALUE;
4107 if (*phUserKey == (HCRYPTKEY)INVALID_HANDLE_VALUE)
4109 /* MSDN: dwKeySpec parameter specifies nonexistent key */
4110 SetLastError(NTE_NO_KEY);
4111 return FALSE;
4114 return TRUE;
4117 /******************************************************************************
4118 * CPHashData (RSAENH.@)
4120 * Updates a hash object with the given data.
4122 * PARAMS
4123 * hProv [I] Key container to which the hash object belongs.
4124 * hHash [I] Hash object which is to be updated.
4125 * pbData [I] Pointer to data with which the hash object is to be updated.
4126 * dwDataLen [I] Length of the data.
4127 * dwFlags [I] Currently none defined.
4129 * RETURNS
4130 * Success: TRUE.
4131 * Failure: FALSE.
4133 * NOTES
4134 * The actual hash value is queried with CPGetHashParam, which will finalize
4135 * the hash. Updating a finalized hash will fail with a last error NTE_BAD_HASH_STATE.
4137 BOOL WINAPI RSAENH_CPHashData(HCRYPTPROV hProv, HCRYPTHASH hHash, const BYTE *pbData,
4138 DWORD dwDataLen, DWORD dwFlags)
4140 CRYPTHASH *pCryptHash;
4142 TRACE("(hProv=%08lx, hHash=%08lx, pbData=%p, dwDataLen=%d, dwFlags=%08x)\n",
4143 hProv, hHash, pbData, dwDataLen, dwFlags);
4145 if (dwFlags & ~CRYPT_USERDATA)
4147 SetLastError(NTE_BAD_FLAGS);
4148 return FALSE;
4151 if (!lookup_handle(&handle_table, hHash, RSAENH_MAGIC_HASH,
4152 (OBJECTHDR**)&pCryptHash))
4154 SetLastError(NTE_BAD_HASH);
4155 return FALSE;
4158 if (!get_algid_info(hProv, pCryptHash->aiAlgid) || pCryptHash->aiAlgid == CALG_SSL3_SHAMD5)
4160 SetLastError(NTE_BAD_ALGID);
4161 return FALSE;
4164 if (pCryptHash->dwState != RSAENH_HASHSTATE_HASHING)
4166 SetLastError(NTE_BAD_HASH_STATE);
4167 return FALSE;
4170 update_hash(pCryptHash, pbData, dwDataLen);
4171 return TRUE;
4174 /******************************************************************************
4175 * CPHashSessionKey (RSAENH.@)
4177 * Updates a hash object with the binary representation of a symmetric key.
4179 * PARAMS
4180 * hProv [I] Key container to which the hash object belongs.
4181 * hHash [I] Hash object which is to be updated.
4182 * hKey [I] The symmetric key, whose binary value will be added to the hash.
4183 * dwFlags [I] CRYPT_LITTLE_ENDIAN, if the binary key value shall be interpreted as little endian.
4185 * RETURNS
4186 * Success: TRUE.
4187 * Failure: FALSE.
4189 BOOL WINAPI RSAENH_CPHashSessionKey(HCRYPTPROV hProv, HCRYPTHASH hHash, HCRYPTKEY hKey,
4190 DWORD dwFlags)
4192 BYTE abKeyValue[RSAENH_MAX_KEY_SIZE], bTemp;
4193 CRYPTKEY *pKey;
4194 DWORD i;
4196 TRACE("(hProv=%08lx, hHash=%08lx, hKey=%08lx, dwFlags=%08x)\n", hProv, hHash, hKey, dwFlags);
4198 if (!lookup_handle(&handle_table, hKey, RSAENH_MAGIC_KEY, (OBJECTHDR**)&pKey) ||
4199 (GET_ALG_CLASS(pKey->aiAlgid) != ALG_CLASS_DATA_ENCRYPT))
4201 SetLastError(NTE_BAD_KEY);
4202 return FALSE;
4205 if (dwFlags & ~CRYPT_LITTLE_ENDIAN) {
4206 SetLastError(NTE_BAD_FLAGS);
4207 return FALSE;
4210 memcpy(abKeyValue, pKey->abKeyValue, pKey->dwKeyLen);
4211 if (!(dwFlags & CRYPT_LITTLE_ENDIAN)) {
4212 for (i=0; i<pKey->dwKeyLen/2; i++) {
4213 bTemp = abKeyValue[i];
4214 abKeyValue[i] = abKeyValue[pKey->dwKeyLen-i-1];
4215 abKeyValue[pKey->dwKeyLen-i-1] = bTemp;
4219 return RSAENH_CPHashData(hProv, hHash, abKeyValue, pKey->dwKeyLen, 0);
4222 /******************************************************************************
4223 * CPReleaseContext (RSAENH.@)
4225 * Release a key container.
4227 * PARAMS
4228 * hProv [I] Key container to be released.
4229 * dwFlags [I] Currently none defined.
4231 * RETURNS
4232 * Success: TRUE
4233 * Failure: FALSE
4235 BOOL WINAPI RSAENH_CPReleaseContext(HCRYPTPROV hProv, DWORD dwFlags)
4237 TRACE("(hProv=%08lx, dwFlags=%08x)\n", hProv, dwFlags);
4239 if (!release_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
4241 /* MSDN: hProv not containing valid context handle */
4242 SetLastError(NTE_BAD_UID);
4243 return FALSE;
4246 if (dwFlags) {
4247 SetLastError(NTE_BAD_FLAGS);
4248 return FALSE;
4251 return TRUE;
4254 /******************************************************************************
4255 * CPSetHashParam (RSAENH.@)
4257 * Set a parameter of a hash object
4259 * PARAMS
4260 * hProv [I] The key container to which the key belongs.
4261 * hHash [I] The hash object for which a parameter is to be set.
4262 * dwParam [I] Parameter type. See Notes.
4263 * pbData [I] Pointer to the parameter value.
4264 * dwFlags [I] Currently none defined.
4266 * RETURNS
4267 * Success: TRUE.
4268 * Failure: FALSE.
4270 * NOTES
4271 * Currently only the HP_HMAC_INFO dwParam type is defined.
4272 * The HMAC_INFO struct will be deep copied into the hash object.
4273 * See Internet RFC 2104 for details on the HMAC algorithm.
4275 BOOL WINAPI RSAENH_CPSetHashParam(HCRYPTPROV hProv, HCRYPTHASH hHash, DWORD dwParam,
4276 BYTE *pbData, DWORD dwFlags)
4278 CRYPTHASH *pCryptHash;
4279 CRYPTKEY *pCryptKey;
4280 DWORD i;
4282 TRACE("(hProv=%08lx, hHash=%08lx, dwParam=%08x, pbData=%p, dwFlags=%08x)\n",
4283 hProv, hHash, dwParam, pbData, dwFlags);
4285 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
4287 SetLastError(NTE_BAD_UID);
4288 return FALSE;
4291 if (dwFlags) {
4292 SetLastError(NTE_BAD_FLAGS);
4293 return FALSE;
4296 if (!lookup_handle(&handle_table, hHash, RSAENH_MAGIC_HASH,
4297 (OBJECTHDR**)&pCryptHash))
4299 SetLastError(NTE_BAD_HASH);
4300 return FALSE;
4303 switch (dwParam) {
4304 case HP_HMAC_INFO:
4305 free_hmac_info(pCryptHash->pHMACInfo);
4306 if (!copy_hmac_info(&pCryptHash->pHMACInfo, (PHMAC_INFO)pbData)) return FALSE;
4308 if (!lookup_handle(&handle_table, pCryptHash->hKey, RSAENH_MAGIC_KEY,
4309 (OBJECTHDR**)&pCryptKey))
4311 SetLastError(NTE_FAIL); /* FIXME: correct error code? */
4312 return FALSE;
4315 if (pCryptKey->aiAlgid == CALG_HMAC && !pCryptKey->dwKeyLen) {
4316 HCRYPTHASH hKeyHash;
4317 DWORD keyLen;
4319 if (!RSAENH_CPCreateHash(hProv, ((PHMAC_INFO)pbData)->HashAlgid, 0, 0,
4320 &hKeyHash))
4321 return FALSE;
4322 if (!RSAENH_CPHashData(hProv, hKeyHash, pCryptKey->blobHmacKey.pbData,
4323 pCryptKey->blobHmacKey.cbData, 0))
4325 RSAENH_CPDestroyHash(hProv, hKeyHash);
4326 return FALSE;
4328 keyLen = sizeof(pCryptKey->abKeyValue);
4329 if (!RSAENH_CPGetHashParam(hProv, hKeyHash, HP_HASHVAL, pCryptKey->abKeyValue,
4330 &keyLen, 0))
4332 RSAENH_CPDestroyHash(hProv, hKeyHash);
4333 return FALSE;
4335 pCryptKey->dwKeyLen = keyLen;
4336 RSAENH_CPDestroyHash(hProv, hKeyHash);
4338 for (i=0; i<RSAENH_MIN(pCryptKey->dwKeyLen,pCryptHash->pHMACInfo->cbInnerString); i++) {
4339 pCryptHash->pHMACInfo->pbInnerString[i] ^= pCryptKey->abKeyValue[i];
4341 for (i=0; i<RSAENH_MIN(pCryptKey->dwKeyLen,pCryptHash->pHMACInfo->cbOuterString); i++) {
4342 pCryptHash->pHMACInfo->pbOuterString[i] ^= pCryptKey->abKeyValue[i];
4345 init_hash(pCryptHash);
4346 return TRUE;
4348 case HP_HASHVAL:
4349 memcpy(pCryptHash->abHashValue, pbData, pCryptHash->dwHashSize);
4350 pCryptHash->dwState = RSAENH_HASHSTATE_FINISHED;
4351 return TRUE;
4353 case HP_TLS1PRF_SEED:
4354 return copy_data_blob(&pCryptHash->tpPRFParams.blobSeed, (PCRYPT_DATA_BLOB)pbData);
4356 case HP_TLS1PRF_LABEL:
4357 return copy_data_blob(&pCryptHash->tpPRFParams.blobLabel, (PCRYPT_DATA_BLOB)pbData);
4359 default:
4360 SetLastError(NTE_BAD_TYPE);
4361 return FALSE;
4365 /******************************************************************************
4366 * CPSetProvParam (RSAENH.@)
4368 BOOL WINAPI RSAENH_CPSetProvParam(HCRYPTPROV hProv, DWORD dwParam, BYTE *pbData, DWORD dwFlags)
4370 KEYCONTAINER *pKeyContainer;
4371 HKEY hKey;
4373 TRACE("(hProv=%08lx, dwParam=%08x, pbData=%p, dwFlags=%08x)\n", hProv, dwParam, pbData, dwFlags);
4375 if (!lookup_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER, (OBJECTHDR **)&pKeyContainer))
4377 SetLastError(NTE_BAD_UID);
4378 return FALSE;
4381 switch (dwParam)
4383 case PP_KEYSET_SEC_DESCR:
4385 SECURITY_DESCRIPTOR *sd = (SECURITY_DESCRIPTOR *)pbData;
4386 DWORD err, flags = (pKeyContainer->dwFlags & CRYPT_MACHINE_KEYSET);
4387 BOOL def, present;
4388 REGSAM access = WRITE_DAC | WRITE_OWNER | ACCESS_SYSTEM_SECURITY;
4389 PSID owner = NULL, group = NULL;
4390 PACL dacl = NULL, sacl = NULL;
4392 if (!open_container_key(pKeyContainer->szName, flags, access, &hKey))
4394 SetLastError(NTE_BAD_KEYSET);
4395 return FALSE;
4398 if ((dwFlags & OWNER_SECURITY_INFORMATION && !GetSecurityDescriptorOwner(sd, &owner, &def)) ||
4399 (dwFlags & GROUP_SECURITY_INFORMATION && !GetSecurityDescriptorGroup(sd, &group, &def)) ||
4400 (dwFlags & DACL_SECURITY_INFORMATION && !GetSecurityDescriptorDacl(sd, &present, &dacl, &def)) ||
4401 (dwFlags & SACL_SECURITY_INFORMATION && !GetSecurityDescriptorSacl(sd, &present, &sacl, &def)))
4403 RegCloseKey(hKey);
4404 return FALSE;
4407 err = SetSecurityInfo(hKey, SE_REGISTRY_KEY, dwFlags, owner, group, dacl, sacl);
4408 RegCloseKey(hKey);
4409 if (err)
4411 SetLastError(err);
4412 return FALSE;
4414 return TRUE;
4416 default:
4417 FIXME("unimplemented parameter %08x\n", dwParam);
4418 return FALSE;
4422 /******************************************************************************
4423 * CPSignHash (RSAENH.@)
4425 * Sign a hash object
4427 * PARAMS
4428 * hProv [I] The key container, to which the hash object belongs.
4429 * hHash [I] The hash object to be signed.
4430 * dwKeySpec [I] AT_SIGNATURE or AT_KEYEXCHANGE: Key used to generate the signature.
4431 * sDescription [I] Should be NULL for security reasons.
4432 * dwFlags [I] 0, CRYPT_NOHASHOID or CRYPT_X931_FORMAT: Format of the signature.
4433 * pbSignature [O] Buffer, to which the signature will be stored. May be NULL to query SigLen.
4434 * pdwSigLen [I/O] Size of the buffer (in), Length of the signature (out)
4436 * RETURNS
4437 * Success: TRUE
4438 * Failure: FALSE
4440 BOOL WINAPI RSAENH_CPSignHash(HCRYPTPROV hProv, HCRYPTHASH hHash, DWORD dwKeySpec,
4441 LPCWSTR sDescription, DWORD dwFlags, BYTE *pbSignature,
4442 DWORD *pdwSigLen)
4444 HCRYPTKEY hCryptKey = (HCRYPTKEY)INVALID_HANDLE_VALUE;
4445 CRYPTKEY *pCryptKey;
4446 DWORD dwHashLen;
4447 BYTE abHashValue[RSAENH_MAX_HASH_SIZE];
4448 ALG_ID aiAlgid;
4449 BOOL ret = FALSE;
4451 TRACE("(hProv=%08lx, hHash=%08lx, dwKeySpec=%08x, sDescription=%s, dwFlags=%08x, "
4452 "pbSignature=%p, pdwSigLen=%p)\n", hProv, hHash, dwKeySpec, debugstr_w(sDescription),
4453 dwFlags, pbSignature, pdwSigLen);
4455 if (dwFlags & ~(CRYPT_NOHASHOID|CRYPT_X931_FORMAT)) {
4456 SetLastError(NTE_BAD_FLAGS);
4457 return FALSE;
4460 if (!RSAENH_CPGetUserKey(hProv, dwKeySpec, &hCryptKey)) return FALSE;
4462 if (!lookup_handle(&handle_table, hCryptKey, RSAENH_MAGIC_KEY,
4463 (OBJECTHDR**)&pCryptKey))
4465 SetLastError(NTE_NO_KEY);
4466 goto out;
4469 if (!pbSignature) {
4470 *pdwSigLen = pCryptKey->dwKeyLen;
4471 ret = TRUE;
4472 goto out;
4474 if (pCryptKey->dwKeyLen > *pdwSigLen)
4476 SetLastError(ERROR_MORE_DATA);
4477 *pdwSigLen = pCryptKey->dwKeyLen;
4478 goto out;
4480 *pdwSigLen = pCryptKey->dwKeyLen;
4482 if (sDescription) {
4483 if (!RSAENH_CPHashData(hProv, hHash, (const BYTE*)sDescription,
4484 (DWORD)lstrlenW(sDescription)*sizeof(WCHAR), 0))
4486 goto out;
4490 dwHashLen = sizeof(DWORD);
4491 if (!RSAENH_CPGetHashParam(hProv, hHash, HP_ALGID, (BYTE*)&aiAlgid, &dwHashLen, 0)) goto out;
4493 dwHashLen = RSAENH_MAX_HASH_SIZE;
4494 if (!RSAENH_CPGetHashParam(hProv, hHash, HP_HASHVAL, abHashValue, &dwHashLen, 0)) goto out;
4497 if (!build_hash_signature(pbSignature, *pdwSigLen, aiAlgid, abHashValue, dwHashLen, dwFlags)) {
4498 goto out;
4501 ret = encrypt_block_impl(pCryptKey->aiAlgid, PK_PRIVATE, &pCryptKey->context, pbSignature, pbSignature, RSAENH_ENCRYPT);
4502 out:
4503 RSAENH_CPDestroyKey(hProv, hCryptKey);
4504 return ret;
4507 /******************************************************************************
4508 * CPVerifySignature (RSAENH.@)
4510 * Verify the signature of a hash object.
4512 * PARAMS
4513 * hProv [I] The key container, to which the hash belongs.
4514 * hHash [I] The hash for which the signature is verified.
4515 * pbSignature [I] The binary signature.
4516 * dwSigLen [I] Length of the signature BLOB.
4517 * hPubKey [I] Public key used to verify the signature.
4518 * sDescription [I] Should be NULL for security reasons.
4519 * dwFlags [I] 0, CRYPT_NOHASHOID or CRYPT_X931_FORMAT: Format of the signature.
4521 * RETURNS
4522 * Success: TRUE (Signature is valid)
4523 * Failure: FALSE (GetLastError() == NTE_BAD_SIGNATURE, if signature is invalid)
4525 BOOL WINAPI RSAENH_CPVerifySignature(HCRYPTPROV hProv, HCRYPTHASH hHash, const BYTE *pbSignature,
4526 DWORD dwSigLen, HCRYPTKEY hPubKey, LPCWSTR sDescription,
4527 DWORD dwFlags)
4529 BYTE *pbConstructed = NULL, *pbDecrypted = NULL;
4530 CRYPTKEY *pCryptKey;
4531 DWORD dwHashLen;
4532 ALG_ID aiAlgid;
4533 BYTE abHashValue[RSAENH_MAX_HASH_SIZE];
4534 BOOL res = FALSE;
4536 TRACE("(hProv=%08lx, hHash=%08lx, pbSignature=%p, dwSigLen=%d, hPubKey=%08lx, sDescription=%s, "
4537 "dwFlags=%08x)\n", hProv, hHash, pbSignature, dwSigLen, hPubKey, debugstr_w(sDescription),
4538 dwFlags);
4540 if (dwFlags & ~(CRYPT_NOHASHOID|CRYPT_X931_FORMAT)) {
4541 SetLastError(NTE_BAD_FLAGS);
4542 return FALSE;
4545 if (!is_valid_handle(&handle_table, hProv, RSAENH_MAGIC_CONTAINER))
4547 SetLastError(NTE_BAD_UID);
4548 return FALSE;
4551 if (!lookup_handle(&handle_table, hPubKey, RSAENH_MAGIC_KEY,
4552 (OBJECTHDR**)&pCryptKey))
4554 SetLastError(NTE_BAD_KEY);
4555 return FALSE;
4558 /* in Microsoft implementation, the signature length is checked before
4559 * the signature pointer.
4561 if (dwSigLen != pCryptKey->dwKeyLen)
4563 SetLastError(NTE_BAD_SIGNATURE);
4564 return FALSE;
4567 if (!hHash || !pbSignature)
4569 SetLastError(ERROR_INVALID_PARAMETER);
4570 return FALSE;
4573 if (sDescription) {
4574 if (!RSAENH_CPHashData(hProv, hHash, (const BYTE*)sDescription,
4575 (DWORD)lstrlenW(sDescription)*sizeof(WCHAR), 0))
4577 return FALSE;
4581 dwHashLen = sizeof(DWORD);
4582 if (!RSAENH_CPGetHashParam(hProv, hHash, HP_ALGID, (BYTE*)&aiAlgid, &dwHashLen, 0)) return FALSE;
4584 dwHashLen = RSAENH_MAX_HASH_SIZE;
4585 if (!RSAENH_CPGetHashParam(hProv, hHash, HP_HASHVAL, abHashValue, &dwHashLen, 0)) return FALSE;
4587 pbConstructed = HeapAlloc(GetProcessHeap(), 0, dwSigLen);
4588 if (!pbConstructed) {
4589 SetLastError(NTE_NO_MEMORY);
4590 goto cleanup;
4593 pbDecrypted = HeapAlloc(GetProcessHeap(), 0, dwSigLen);
4594 if (!pbDecrypted) {
4595 SetLastError(NTE_NO_MEMORY);
4596 goto cleanup;
4599 if (!encrypt_block_impl(pCryptKey->aiAlgid, PK_PUBLIC, &pCryptKey->context, pbSignature, pbDecrypted,
4600 RSAENH_DECRYPT))
4602 goto cleanup;
4605 if (build_hash_signature(pbConstructed, dwSigLen, aiAlgid, abHashValue, dwHashLen, dwFlags) &&
4606 !memcmp(pbDecrypted, pbConstructed, dwSigLen)) {
4607 res = TRUE;
4608 goto cleanup;
4611 if (!(dwFlags & CRYPT_NOHASHOID) &&
4612 build_hash_signature(pbConstructed, dwSigLen, aiAlgid, abHashValue, dwHashLen, dwFlags|CRYPT_NOHASHOID) &&
4613 !memcmp(pbDecrypted, pbConstructed, dwSigLen)) {
4614 res = TRUE;
4615 goto cleanup;
4618 SetLastError(NTE_BAD_SIGNATURE);
4620 cleanup:
4621 HeapFree(GetProcessHeap(), 0, pbConstructed);
4622 HeapFree(GetProcessHeap(), 0, pbDecrypted);
4623 return res;
4626 /******************************************************************************
4627 * DllRegisterServer (RSAENH.@)
4629 HRESULT WINAPI DllRegisterServer(void)
4631 return __wine_register_resources( instance );
4634 /******************************************************************************
4635 * DllUnregisterServer (RSAENH.@)
4637 HRESULT WINAPI DllUnregisterServer(void)
4639 return __wine_unregister_resources( instance );