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Import OpenSSL-0.9.8i.
[dragonfly.git] / crypto / openssl-0.9.7d / crypto / engine / hw_4758_cca.c
blob4f5ae8a46dc49553c4492e1a8f5cde986cdbc727
1 /* Author: Maurice Gittens <maurice@gittens.nl> */
2 /* ====================================================================
3 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
16 *
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
21 *
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * licensing@OpenSSL.org.
26 *
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
30 *
31 * 6. Redistributions of any form whatsoever must retain the following
32 * acknowledgment:
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 *
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
53 *
54 */
55
56 #include <stdio.h>
57 #include <openssl/crypto.h>
58 /* #include <openssl/pem.h> */
59 #include "cryptlib.h"
60 #include <openssl/dso.h>
61 #include <openssl/x509.h>
62 #include <openssl/objects.h>
63 #include <openssl/engine.h>
64
65 #ifndef OPENSSL_NO_HW
66 #ifndef OPENSSL_NO_HW_4758_CCA
67
68 #ifdef FLAT_INC
69 #include "hw_4758_cca.h"
70 #else
71 #include "vendor_defns/hw_4758_cca.h"
72 #endif
73
74 #include "hw_4758_cca_err.c"
75
76 static int ibm_4758_cca_destroy(ENGINE *e);
77 static int ibm_4758_cca_init(ENGINE *e);
78 static int ibm_4758_cca_finish(ENGINE *e);
79 static int ibm_4758_cca_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)());
80
81 /* rsa functions */
82 /*---------------*/
83 #ifndef OPENSSL_NO_RSA
84 static int cca_rsa_pub_enc(int flen, const unsigned char *from,
85 unsigned char *to, RSA *rsa,int padding);
86 static int cca_rsa_priv_dec(int flen, const unsigned char *from,
87 unsigned char *to, RSA *rsa,int padding);
88 static int cca_rsa_sign(int type, const unsigned char *m, unsigned int m_len,
89 unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
90 static int cca_rsa_verify(int dtype, const unsigned char *m, unsigned int m_len,
91 unsigned char *sigbuf, unsigned int siglen, const RSA *rsa);
92
93 /* utility functions */
94 /*-----------------------*/
95 static EVP_PKEY *ibm_4758_load_privkey(ENGINE*, const char*,
96 UI_METHOD *ui_method, void *callback_data);
97 static EVP_PKEY *ibm_4758_load_pubkey(ENGINE*, const char*,
98 UI_METHOD *ui_method, void *callback_data);
99
100 static int getModulusAndExponent(const unsigned char *token, long *exponentLength,
101 unsigned char *exponent, long *modulusLength,
102 long *modulusFieldLength, unsigned char *modulus);
103 #endif
104
105 /* RAND number functions */
106 /*-----------------------*/
107 static int cca_get_random_bytes(unsigned char*, int );
108 static int cca_random_status(void);
109
110 static void cca_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
111 int idx,long argl, void *argp);
112
113 /* Function pointers for CCA verbs */
114 /*---------------------------------*/
115 #ifndef OPENSSL_NO_RSA
116 static F_KEYRECORDREAD keyRecordRead;
117 static F_DIGITALSIGNATUREGENERATE digitalSignatureGenerate;
118 static F_DIGITALSIGNATUREVERIFY digitalSignatureVerify;
119 static F_PUBLICKEYEXTRACT publicKeyExtract;
120 static F_PKAENCRYPT pkaEncrypt;
121 static F_PKADECRYPT pkaDecrypt;
122 #endif
123 static F_RANDOMNUMBERGENERATE randomNumberGenerate;
124
125 /* static variables */
126 /*------------------*/
127 static const char *CCA4758_LIB_NAME = NULL;
128 static const char *get_CCA4758_LIB_NAME(void)
129 {
130 if(CCA4758_LIB_NAME)
131 return CCA4758_LIB_NAME;
132 return CCA_LIB_NAME;
133 }
134 static void free_CCA4758_LIB_NAME(void)
135 {
136 if(CCA4758_LIB_NAME)
137 OPENSSL_free((void*)CCA4758_LIB_NAME);
138 CCA4758_LIB_NAME = NULL;
139 }
140 static long set_CCA4758_LIB_NAME(const char *name)
141 {
142 free_CCA4758_LIB_NAME();
143 return (((CCA4758_LIB_NAME = BUF_strdup(name)) != NULL) ? 1 : 0);
144 }
145 #ifndef OPENSSL_NO_RSA
146 static const char* n_keyRecordRead = CSNDKRR;
147 static const char* n_digitalSignatureGenerate = CSNDDSG;
148 static const char* n_digitalSignatureVerify = CSNDDSV;
149 static const char* n_publicKeyExtract = CSNDPKX;
150 static const char* n_pkaEncrypt = CSNDPKE;
151 static const char* n_pkaDecrypt = CSNDPKD;
152 #endif
153 static const char* n_randomNumberGenerate = CSNBRNG;
154
155 static int hndidx = -1;
156 static DSO *dso = NULL;
157
158 /* openssl engine initialization structures */
159 /*------------------------------------------*/
160
161 #define CCA4758_CMD_SO_PATH ENGINE_CMD_BASE
162 static const ENGINE_CMD_DEFN cca4758_cmd_defns[] = {
163 {CCA4758_CMD_SO_PATH,
164 "SO_PATH",
165 "Specifies the path to the '4758cca' shared library",
166 ENGINE_CMD_FLAG_STRING},
167 {0, NULL, NULL, 0}
168 };
169
170 #ifndef OPENSSL_NO_RSA
171 static RSA_METHOD ibm_4758_cca_rsa =
172 {
173 "IBM 4758 CCA RSA method",
174 cca_rsa_pub_enc,
175 NULL,
176 NULL,
177 cca_rsa_priv_dec,
178 NULL, /*rsa_mod_exp,*/
179 NULL, /*mod_exp_mont,*/
180 NULL, /* init */
181 NULL, /* finish */
182 RSA_FLAG_SIGN_VER, /* flags */
183 NULL, /* app_data */
184 cca_rsa_sign, /* rsa_sign */
185 cca_rsa_verify /* rsa_verify */
186 };
187 #endif
188
189 static RAND_METHOD ibm_4758_cca_rand =
190 {
191 /* "IBM 4758 RAND method", */
192 NULL, /* seed */
193 cca_get_random_bytes, /* get random bytes from the card */
194 NULL, /* cleanup */
195 NULL, /* add */
196 cca_get_random_bytes, /* pseudo rand */
197 cca_random_status, /* status */
198 };
199
200 static const char *engine_4758_cca_id = "4758cca";
201 static const char *engine_4758_cca_name = "IBM 4758 CCA hardware engine support";
202
203 /* engine implementation */
204 /*-----------------------*/
205 static int bind_helper(ENGINE *e)
206 {
207 if(!ENGINE_set_id(e, engine_4758_cca_id) ||
208 !ENGINE_set_name(e, engine_4758_cca_name) ||
209 #ifndef OPENSSL_NO_RSA
210 !ENGINE_set_RSA(e, &ibm_4758_cca_rsa) ||
211 #endif
212 !ENGINE_set_RAND(e, &ibm_4758_cca_rand) ||
213 !ENGINE_set_destroy_function(e, ibm_4758_cca_destroy) ||
214 !ENGINE_set_init_function(e, ibm_4758_cca_init) ||
215 !ENGINE_set_finish_function(e, ibm_4758_cca_finish) ||
216 !ENGINE_set_ctrl_function(e, ibm_4758_cca_ctrl) ||
217 !ENGINE_set_load_privkey_function(e, ibm_4758_load_privkey) ||
218 !ENGINE_set_load_pubkey_function(e, ibm_4758_load_pubkey) ||
219 !ENGINE_set_cmd_defns(e, cca4758_cmd_defns))
220 return 0;
221 /* Ensure the error handling is set up */
222 ERR_load_CCA4758_strings();
223 return 1;
224 }
225
226 #ifndef ENGINE_DYNAMIC_SUPPORT
227 static ENGINE *engine_4758_cca(void)
228 {
229 ENGINE *ret = ENGINE_new();
230 if(!ret)
231 return NULL;
232 if(!bind_helper(ret))
233 {
234 ENGINE_free(ret);
235 return NULL;
236 }
237 return ret;
238 }
239
240 void ENGINE_load_4758cca(void)
241 {
242 ENGINE *e_4758 = engine_4758_cca();
243 if (!e_4758) return;
244 ENGINE_add(e_4758);
245 ENGINE_free(e_4758);
246 ERR_clear_error();
247 }
248 #endif
249
250 static int ibm_4758_cca_destroy(ENGINE *e)
251 {
252 ERR_unload_CCA4758_strings();
253 free_CCA4758_LIB_NAME();
254 return 1;
255 }
256
257 static int ibm_4758_cca_init(ENGINE *e)
258 {
259 if(dso)
260 {
261 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_ALREADY_LOADED);
262 goto err;
263 }
264
265 dso = DSO_load(NULL, get_CCA4758_LIB_NAME(), NULL, 0);
266 if(!dso)
267 {
268 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
269 goto err;
270 }
271
272 #ifndef OPENSSL_NO_RSA
273 if(!(keyRecordRead = (F_KEYRECORDREAD)
274 DSO_bind_func(dso, n_keyRecordRead)) ||
275 !(randomNumberGenerate = (F_RANDOMNUMBERGENERATE)
276 DSO_bind_func(dso, n_randomNumberGenerate)) ||
277 !(digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)
278 DSO_bind_func(dso, n_digitalSignatureGenerate)) ||
279 !(digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)
280 DSO_bind_func(dso, n_digitalSignatureVerify)) ||
281 !(publicKeyExtract = (F_PUBLICKEYEXTRACT)
282 DSO_bind_func(dso, n_publicKeyExtract)) ||
283 !(pkaEncrypt = (F_PKAENCRYPT)
284 DSO_bind_func(dso, n_pkaEncrypt)) ||
285 !(pkaDecrypt = (F_PKADECRYPT)
286 DSO_bind_func(dso, n_pkaDecrypt)))
287 {
288 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
289 goto err;
290 }
291 #else
292 if(!(randomNumberGenerate = (F_RANDOMNUMBERGENERATE)
293 DSO_bind_func(dso, n_randomNumberGenerate)))
294 {
295 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
296 goto err;
297 }
298 #endif
299
300 hndidx = RSA_get_ex_new_index(0, "IBM 4758 CCA RSA key handle",
301 NULL, NULL, cca_ex_free);
302
303 return 1;
304 err:
305 if(dso)
306 DSO_free(dso);
307 dso = NULL;
308
309 keyRecordRead = (F_KEYRECORDREAD)0;
310 randomNumberGenerate = (F_RANDOMNUMBERGENERATE)0;
311 digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)0;
312 digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)0;
313 publicKeyExtract = (F_PUBLICKEYEXTRACT)0;
314 pkaEncrypt = (F_PKAENCRYPT)0;
315 pkaDecrypt = (F_PKADECRYPT)0;
316 return 0;
317 }
318
319 static int ibm_4758_cca_finish(ENGINE *e)
320 {
321 free_CCA4758_LIB_NAME();
322 if(!dso)
323 {
324 CCA4758err(CCA4758_F_IBM_4758_CCA_FINISH,
325 CCA4758_R_NOT_LOADED);
326 return 0;
327 }
328 if(!DSO_free(dso))
329 {
330 CCA4758err(CCA4758_F_IBM_4758_CCA_FINISH,
331 CCA4758_R_UNIT_FAILURE);
332 return 0;
333 }
334 dso = NULL;
335 keyRecordRead = (F_KEYRECORDREAD)0;
336 randomNumberGenerate = (F_RANDOMNUMBERGENERATE)0;
337 digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)0;
338 digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)0;
339 publicKeyExtract = (F_PUBLICKEYEXTRACT)0;
340 pkaEncrypt = (F_PKAENCRYPT)0;
341 pkaDecrypt = (F_PKADECRYPT)0;
342 return 1;
343 }
344
345 static int ibm_4758_cca_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)())
346 {
347 int initialised = ((dso == NULL) ? 0 : 1);
348 switch(cmd)
349 {
350 case CCA4758_CMD_SO_PATH:
351 if(p == NULL)
352 {
353 CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
354 ERR_R_PASSED_NULL_PARAMETER);
355 return 0;
356 }
357 if(initialised)
358 {
359 CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
360 CCA4758_R_ALREADY_LOADED);
361 return 0;
362 }
363 return set_CCA4758_LIB_NAME((const char *)p);
364 default:
365 break;
366 }
367 CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
368 CCA4758_R_COMMAND_NOT_IMPLEMENTED);
369 return 0;
370 }
371
372 #ifndef OPENSSL_NO_RSA
373
374 #define MAX_CCA_PKA_TOKEN_SIZE 2500
375
376 static EVP_PKEY *ibm_4758_load_privkey(ENGINE* e, const char* key_id,
377 UI_METHOD *ui_method, void *callback_data)
378 {
379 RSA *rtmp = NULL;
380 EVP_PKEY *res = NULL;
381 unsigned char* keyToken = NULL;
382 unsigned char pubKeyToken[MAX_CCA_PKA_TOKEN_SIZE];
383 long pubKeyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
384 long keyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
385 long returnCode;
386 long reasonCode;
387 long exitDataLength = 0;
388 long ruleArrayLength = 0;
389 unsigned char exitData[8];
390 unsigned char ruleArray[8];
391 unsigned char keyLabel[64];
392 long keyLabelLength = strlen(key_id);
393 unsigned char modulus[256];
394 long modulusFieldLength = sizeof(modulus);
395 long modulusLength = 0;
396 unsigned char exponent[256];
397 long exponentLength = sizeof(exponent);
398
399 if (keyLabelLength > sizeof(keyLabel))
400 {
401 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
402 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
403 return NULL;
404 }
405
406 memset(keyLabel,' ', sizeof(keyLabel));
407 memcpy(keyLabel, key_id, keyLabelLength);
408
409 keyToken = OPENSSL_malloc(MAX_CCA_PKA_TOKEN_SIZE + sizeof(long));
410 if (!keyToken)
411 {
412 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
413 ERR_R_MALLOC_FAILURE);
414 goto err;
415 }
416
417 keyRecordRead(&returnCode, &reasonCode, &exitDataLength,
418 exitData, &ruleArrayLength, ruleArray, keyLabel,
419 &keyTokenLength, keyToken+sizeof(long));
420
421 if (returnCode)
422 {
423 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
424 CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
425 goto err;
426 }
427
428 publicKeyExtract(&returnCode, &reasonCode, &exitDataLength,
429 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
430 keyToken+sizeof(long), &pubKeyTokenLength, pubKeyToken);
431
432 if (returnCode)
433 {
434 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
435 CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
436 goto err;
437 }
438
439 if (!getModulusAndExponent(pubKeyToken, &exponentLength,
440 exponent, &modulusLength, &modulusFieldLength,
441 modulus))
442 {
443 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
444 CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
445 goto err;
446 }
447
448 (*(long*)keyToken) = keyTokenLength;
449 rtmp = RSA_new_method(e);
450 RSA_set_ex_data(rtmp, hndidx, (char *)keyToken);
451
452 rtmp->e = BN_bin2bn(exponent, exponentLength, NULL);
453 rtmp->n = BN_bin2bn(modulus, modulusFieldLength, NULL);
454 rtmp->flags |= RSA_FLAG_EXT_PKEY;
455
456 res = EVP_PKEY_new();
457 EVP_PKEY_assign_RSA(res, rtmp);
458
459 return res;
460 err:
461 if (keyToken)
462 OPENSSL_free(keyToken);
463 if (res)
464 EVP_PKEY_free(res);
465 if (rtmp)
466 RSA_free(rtmp);
467 return NULL;
468 }
469
470 static EVP_PKEY *ibm_4758_load_pubkey(ENGINE* e, const char* key_id,
471 UI_METHOD *ui_method, void *callback_data)
472 {
473 RSA *rtmp = NULL;
474 EVP_PKEY *res = NULL;
475 unsigned char* keyToken = NULL;
476 long keyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
477 long returnCode;
478 long reasonCode;
479 long exitDataLength = 0;
480 long ruleArrayLength = 0;
481 unsigned char exitData[8];
482 unsigned char ruleArray[8];
483 unsigned char keyLabel[64];
484 long keyLabelLength = strlen(key_id);
485 unsigned char modulus[512];
486 long modulusFieldLength = sizeof(modulus);
487 long modulusLength = 0;
488 unsigned char exponent[512];
489 long exponentLength = sizeof(exponent);
490
491 if (keyLabelLength > sizeof(keyLabel))
492 {
493 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
494 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
495 return NULL;
496 }
497
498 memset(keyLabel,' ', sizeof(keyLabel));
499 memcpy(keyLabel, key_id, keyLabelLength);
500
501 keyToken = OPENSSL_malloc(MAX_CCA_PKA_TOKEN_SIZE + sizeof(long));
502 if (!keyToken)
503 {
504 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PUBKEY,
505 ERR_R_MALLOC_FAILURE);
506 goto err;
507 }
508
509 keyRecordRead(&returnCode, &reasonCode, &exitDataLength, exitData,
510 &ruleArrayLength, ruleArray, keyLabel, &keyTokenLength,
511 keyToken+sizeof(long));
512
513 if (returnCode)
514 {
515 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
516 ERR_R_MALLOC_FAILURE);
517 goto err;
518 }
519
520 if (!getModulusAndExponent(keyToken+sizeof(long), &exponentLength,
521 exponent, &modulusLength, &modulusFieldLength, modulus))
522 {
523 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
524 CCA4758_R_FAILED_LOADING_PUBLIC_KEY);
525 goto err;
526 }
527
528 (*(long*)keyToken) = keyTokenLength;
529 rtmp = RSA_new_method(e);
530 RSA_set_ex_data(rtmp, hndidx, (char *)keyToken);
531 rtmp->e = BN_bin2bn(exponent, exponentLength, NULL);
532 rtmp->n = BN_bin2bn(modulus, modulusFieldLength, NULL);
533 rtmp->flags |= RSA_FLAG_EXT_PKEY;
534 res = EVP_PKEY_new();
535 EVP_PKEY_assign_RSA(res, rtmp);
536
537 return res;
538 err:
539 if (keyToken)
540 OPENSSL_free(keyToken);
541 if (res)
542 EVP_PKEY_free(res);
543 if (rtmp)
544 RSA_free(rtmp);
545 return NULL;
546 }
547
548 static int cca_rsa_pub_enc(int flen, const unsigned char *from,
549 unsigned char *to, RSA *rsa,int padding)
550 {
551 long returnCode;
552 long reasonCode;
553 long lflen = flen;
554 long exitDataLength = 0;
555 unsigned char exitData[8];
556 long ruleArrayLength = 1;
557 unsigned char ruleArray[8] = "PKCS-1.2";
558 long dataStructureLength = 0;
559 unsigned char dataStructure[8];
560 long outputLength = RSA_size(rsa);
561 long keyTokenLength;
562 unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
563
564 keyTokenLength = *(long*)keyToken;
565 keyToken+=sizeof(long);
566
567 pkaEncrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
568 &ruleArrayLength, ruleArray, &lflen, (unsigned char*)from,
569 &dataStructureLength, dataStructure, &keyTokenLength,
570 keyToken, &outputLength, to);
571
572 if (returnCode || reasonCode)
573 return -(returnCode << 16 | reasonCode);
574 return outputLength;
575 }
576
577 static int cca_rsa_priv_dec(int flen, const unsigned char *from,
578 unsigned char *to, RSA *rsa,int padding)
579 {
580 long returnCode;
581 long reasonCode;
582 long lflen = flen;
583 long exitDataLength = 0;
584 unsigned char exitData[8];
585 long ruleArrayLength = 1;
586 unsigned char ruleArray[8] = "PKCS-1.2";
587 long dataStructureLength = 0;
588 unsigned char dataStructure[8];
589 long outputLength = RSA_size(rsa);
590 long keyTokenLength;
591 unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
592
593 keyTokenLength = *(long*)keyToken;
594 keyToken+=sizeof(long);
595
596 pkaDecrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
597 &ruleArrayLength, ruleArray, &lflen, (unsigned char*)from,
598 &dataStructureLength, dataStructure, &keyTokenLength,
599 keyToken, &outputLength, to);
600
601 return (returnCode | reasonCode) ? 0 : 1;
602 }
603
604 #define SSL_SIG_LEN 36
605
606 static int cca_rsa_verify(int type, const unsigned char *m, unsigned int m_len,
607 unsigned char *sigbuf, unsigned int siglen, const RSA *rsa)
608 {
609 long returnCode;
610 long reasonCode;
611 long lsiglen = siglen;
612 long exitDataLength = 0;
613 unsigned char exitData[8];
614 long ruleArrayLength = 1;
615 unsigned char ruleArray[8] = "PKCS-1.1";
616 long keyTokenLength;
617 unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
618 long length = SSL_SIG_LEN;
619 long keyLength ;
620 unsigned char *hashBuffer = NULL;
621 X509_SIG sig;
622 ASN1_TYPE parameter;
623 X509_ALGOR algorithm;
624 ASN1_OCTET_STRING digest;
625
626 keyTokenLength = *(long*)keyToken;
627 keyToken+=sizeof(long);
628
629 if (type == NID_md5 || type == NID_sha1)
630 {
631 sig.algor = &algorithm;
632 algorithm.algorithm = OBJ_nid2obj(type);
633
634 if (!algorithm.algorithm)
635 {
636 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
637 CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
638 return 0;
639 }
640
641 if (!algorithm.algorithm->length)
642 {
643 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
644 CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
645 return 0;
646 }
647
648 parameter.type = V_ASN1_NULL;
649 parameter.value.ptr = NULL;
650 algorithm.parameter = &parameter;
651
652 sig.digest = &digest;
653 sig.digest->data = (unsigned char*)m;
654 sig.digest->length = m_len;
655
656 length = i2d_X509_SIG(&sig, NULL);
657 }
658
659 keyLength = RSA_size(rsa);
660
661 if (length - RSA_PKCS1_PADDING > keyLength)
662 {
663 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
664 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
665 return 0;
666 }
667
668 switch (type)
669 {
670 case NID_md5_sha1 :
671 if (m_len != SSL_SIG_LEN)
672 {
673 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
674 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
675 return 0;
676 }
677
678 hashBuffer = (unsigned char *)m;
679 length = m_len;
680 break;
681 case NID_md5 :
682 {
683 unsigned char *ptr;
684 ptr = hashBuffer = OPENSSL_malloc(
685 (unsigned int)keyLength+1);
686 if (!hashBuffer)
687 {
688 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
689 ERR_R_MALLOC_FAILURE);
690 return 0;
691 }
692
693 i2d_X509_SIG(&sig, &ptr);
694 }
695 break;
696 case NID_sha1 :
697 {
698 unsigned char *ptr;
699 ptr = hashBuffer = OPENSSL_malloc(
700 (unsigned int)keyLength+1);
701 if (!hashBuffer)
702 {
703 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
704 ERR_R_MALLOC_FAILURE);
705 return 0;
706 }
707 i2d_X509_SIG(&sig, &ptr);
708 }
709 break;
710 default:
711 return 0;
712 }
713
714 digitalSignatureVerify(&returnCode, &reasonCode, &exitDataLength,
715 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
716 keyToken, &length, hashBuffer, &lsiglen, sigbuf);
717
718 if (type == NID_sha1 || type == NID_md5)
719 {
720 OPENSSL_cleanse(hashBuffer, keyLength+1);
721 OPENSSL_free(hashBuffer);
722 }
723
724 return ((returnCode || reasonCode) ? 0 : 1);
725 }
726
727 #define SSL_SIG_LEN 36
728
729 static int cca_rsa_sign(int type, const unsigned char *m, unsigned int m_len,
730 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
731 {
732 long returnCode;
733 long reasonCode;
734 long exitDataLength = 0;
735 unsigned char exitData[8];
736 long ruleArrayLength = 1;
737 unsigned char ruleArray[8] = "PKCS-1.1";
738 long outputLength=256;
739 long outputBitLength;
740 long keyTokenLength;
741 unsigned char *hashBuffer = NULL;
742 unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
743 long length = SSL_SIG_LEN;
744 long keyLength ;
745 X509_SIG sig;
746 ASN1_TYPE parameter;
747 X509_ALGOR algorithm;
748 ASN1_OCTET_STRING digest;
749
750 keyTokenLength = *(long*)keyToken;
751 keyToken+=sizeof(long);
752
753 if (type == NID_md5 || type == NID_sha1)
754 {
755 sig.algor = &algorithm;
756 algorithm.algorithm = OBJ_nid2obj(type);
757
758 if (!algorithm.algorithm)
759 {
760 CCA4758err(CCA4758_F_IBM_4758_CCA_SIGN,
761 CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
762 return 0;
763 }
764
765 if (!algorithm.algorithm->length)
766 {
767 CCA4758err(CCA4758_F_IBM_4758_CCA_SIGN,
768 CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
769 return 0;
770 }
771
772 parameter.type = V_ASN1_NULL;
773 parameter.value.ptr = NULL;
774 algorithm.parameter = &parameter;
775
776 sig.digest = &digest;
777 sig.digest->data = (unsigned char*)m;
778 sig.digest->length = m_len;
779
780 length = i2d_X509_SIG(&sig, NULL);
781 }
782
783 keyLength = RSA_size(rsa);
784
785 if (length - RSA_PKCS1_PADDING > keyLength)
786 {
787 CCA4758err(CCA4758_F_IBM_4758_CCA_SIGN,
788 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
789 return 0;
790 }
791
792 switch (type)
793 {
794 case NID_md5_sha1 :
795 if (m_len != SSL_SIG_LEN)
796 {
797 CCA4758err(CCA4758_F_IBM_4758_CCA_SIGN,
798 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
799 return 0;
800 }
801 hashBuffer = (unsigned char*)m;
802 length = m_len;
803 break;
804 case NID_md5 :
805 {
806 unsigned char *ptr;
807 ptr = hashBuffer = OPENSSL_malloc(
808 (unsigned int)keyLength+1);
809 if (!hashBuffer)
810 {
811 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
812 ERR_R_MALLOC_FAILURE);
813 return 0;
814 }
815 i2d_X509_SIG(&sig, &ptr);
816 }
817 break;
818 case NID_sha1 :
819 {
820 unsigned char *ptr;
821 ptr = hashBuffer = OPENSSL_malloc(
822 (unsigned int)keyLength+1);
823 if (!hashBuffer)
824 {
825 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
826 ERR_R_MALLOC_FAILURE);
827 return 0;
828 }
829 i2d_X509_SIG(&sig, &ptr);
830 }
831 break;
832 default:
833 return 0;
834 }
835
836 digitalSignatureGenerate(&returnCode, &reasonCode, &exitDataLength,
837 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
838 keyToken, &length, hashBuffer, &outputLength, &outputBitLength,
839 sigret);
840
841 if (type == NID_sha1 || type == NID_md5)
842 {
843 OPENSSL_cleanse(hashBuffer, keyLength+1);
844 OPENSSL_free(hashBuffer);
845 }
846
847 *siglen = outputLength;
848
849 return ((returnCode || reasonCode) ? 0 : 1);
850 }
851
852 static int getModulusAndExponent(const unsigned char*token, long *exponentLength,
853 unsigned char *exponent, long *modulusLength, long *modulusFieldLength,
854 unsigned char *modulus)
855 {
856 unsigned long len;
857
858 if (*token++ != (char)0x1E) /* internal PKA token? */
859 return 0;
860
861 if (*token++) /* token version must be zero */
862 return 0;
863
864 len = *token++;
865 len = len << 8;
866 len |= (unsigned char)*token++;
867
868 token += 4; /* skip reserved bytes */
869
870 if (*token++ == (char)0x04)
871 {
872 if (*token++) /* token version must be zero */
873 return 0;
874
875 len = *token++;
876 len = len << 8;
877 len |= (unsigned char)*token++;
878
879 token+=2; /* skip reserved section */
880
881 len = *token++;
882 len = len << 8;
883 len |= (unsigned char)*token++;
884
885 *exponentLength = len;
886
887 len = *token++;
888 len = len << 8;
889 len |= (unsigned char)*token++;
890
891 *modulusLength = len;
892
893 len = *token++;
894 len = len << 8;
895 len |= (unsigned char)*token++;
896
897 *modulusFieldLength = len;
898
899 memcpy(exponent, token, *exponentLength);
900 token+= *exponentLength;
901
902 memcpy(modulus, token, *modulusFieldLength);
903 return 1;
904 }
905 return 0;
906 }
907
908 #endif /* OPENSSL_NO_RSA */
909
910 static int cca_random_status(void)
911 {
912 return 1;
913 }
914
915 static int cca_get_random_bytes(unsigned char* buf, int num)
916 {
917 long ret_code;
918 long reason_code;
919 long exit_data_length;
920 unsigned char exit_data[4];
921 unsigned char form[] = "RANDOM ";
922 unsigned char rand_buf[8];
923
924 while(num >= sizeof(rand_buf))
925 {
926 randomNumberGenerate(&ret_code, &reason_code, &exit_data_length,
927 exit_data, form, rand_buf);
928 if (ret_code)
929 return 0;
930 num -= sizeof(rand_buf);
931 memcpy(buf, rand_buf, sizeof(rand_buf));
932 buf += sizeof(rand_buf);
933 }
934
935 if (num)
936 {
937 randomNumberGenerate(&ret_code, &reason_code, NULL, NULL,
938 form, rand_buf);
939 if (ret_code)
940 return 0;
941 memcpy(buf, rand_buf, num);
942 }
943
944 return 1;
945 }
946
947 static void cca_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad, int idx,
948 long argl, void *argp)
949 {
950 if (item)
951 OPENSSL_free(item);
952 }
953
954 /* Goo to handle building as a dynamic engine */
955 #ifdef ENGINE_DYNAMIC_SUPPORT
956 static int bind_fn(ENGINE *e, const char *id)
957 {
958 if(id && (strcmp(id, engine_4758_cca_id) != 0))
959 return 0;
960 if(!bind_helper(e))
961 return 0;
962 return 1;
963 }
964 IMPLEMENT_DYNAMIC_CHECK_FN()
965 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
966 #endif /* ENGINE_DYNAMIC_SUPPORT */
967
968 #endif /* !OPENSSL_NO_HW_4758_CCA */
969 #endif /* !OPENSSL_NO_HW */
DragonFly BSD