1 /* Written by Ben Laurie, 2001 */
3 * Copyright (c) 2001 The OpenSSL Project. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
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
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/)"
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 * openssl-core@openssl.org.
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.
31 * 6. Redistributions of any form whatsoever must retain the following
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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.
50 #include <openssl/evp.h>
51 #include <openssl/objects.h>
52 #include <openssl/rsa.h>
55 /* This stuff should now all be supported through
56 * crypto/engine/hw_openbsd_dev_crypto.c unless I botched it up */
57 static void *dummy
=&dummy
;
61 /* check flag after OpenSSL headers to ensure make depend works */
62 #ifdef OPENSSL_OPENBSD_DEV_CRYPTO
67 #include <sys/ioctl.h>
68 #include <crypto/cryptodev.h>
72 /* longest key supported in hardware */
76 #define MD5_DIGEST_LENGTH 16
80 static int dev_failed
;
82 typedef struct session_op session_op
;
84 #define CDATA(ctx) EVP_C_DATA(session_op,ctx)
86 static void err(const char *str
)
88 fprintf(stderr
,"%s: errno %d\n",str
,errno
);
91 static int dev_crypto_init(session_op
*ses
)
99 if ((cryptodev_fd
=open("/dev/crypto",O_RDWR
,0)) < 0)
105 if (ioctl(cryptodev_fd
,CRIOGET
,&fd
) == -1)
107 err("CRIOGET failed");
115 memset(ses
,'\0',sizeof *ses
);
120 static int dev_crypto_cleanup(EVP_CIPHER_CTX
*ctx
)
122 if(ioctl(fd
,CIOCFSESSION
,&CDATA(ctx
)->ses
) == -1)
123 err("CIOCFSESSION failed");
125 OPENSSL_free(CDATA(ctx
)->key
);
130 static int dev_crypto_init_key(EVP_CIPHER_CTX
*ctx
,int cipher
,
131 const unsigned char *key
,int klen
)
133 if(!dev_crypto_init(CDATA(ctx
)))
136 CDATA(ctx
)->key
=OPENSSL_malloc(MAX_HW_KEY
);
138 assert(ctx
->cipher
->iv_len
<= MAX_HW_IV
);
140 memcpy(CDATA(ctx
)->key
,key
,klen
);
142 CDATA(ctx
)->cipher
=cipher
;
143 CDATA(ctx
)->keylen
=klen
;
145 if (ioctl(fd
,CIOCGSESSION
,CDATA(ctx
)) == -1)
147 err("CIOCGSESSION failed");
153 static int dev_crypto_cipher(EVP_CIPHER_CTX
*ctx
,unsigned char *out
,
154 const unsigned char *in
,unsigned int inl
)
156 struct crypt_op cryp
;
157 unsigned char lb
[MAX_HW_IV
];
165 memset(&cryp
,'\0',sizeof cryp
);
166 cryp
.ses
=CDATA(ctx
)->ses
;
167 cryp
.op
=ctx
->encrypt
? COP_ENCRYPT
: COP_DECRYPT
;
170 assert((inl
&(ctx
->cipher
->block_size
-1)) == 0);
171 cryp
.src
=(caddr_t
)in
;
172 cryp
.dst
=(caddr_t
)out
;
174 if(ctx
->cipher
->iv_len
)
175 cryp
.iv
=(caddr_t
)ctx
->iv
;
178 memcpy(lb
,&in
[cryp
.len
-ctx
->cipher
->iv_len
],ctx
->cipher
->iv_len
);
180 if(ioctl(fd
, CIOCCRYPT
, &cryp
) == -1)
182 if(errno
== EINVAL
) /* buffers are misaligned */
188 /* NB: this can only make cinl != inl with stream ciphers */
191 if(((unsigned long)in
&3) || cinl
!= inl
)
193 cin
=OPENSSL_malloc(cinl
);
198 if(((unsigned long)out
&3) || cinl
!= inl
)
200 cout
=OPENSSL_malloc(cinl
);
206 if(ioctl(fd
, CIOCCRYPT
, &cryp
) == -1)
208 err("CIOCCRYPT(2) failed");
209 printf("src=%p dst=%p\n",cryp
.src
,cryp
.dst
);
216 memcpy(out
,cout
,inl
);
224 err("CIOCCRYPT failed");
231 memcpy(ctx
->iv
,&out
[cryp
.len
-ctx
->cipher
->iv_len
],ctx
->cipher
->iv_len
);
233 memcpy(ctx
->iv
,lb
,ctx
->cipher
->iv_len
);
238 static int dev_crypto_des_ede3_init_key(EVP_CIPHER_CTX
*ctx
,
239 const unsigned char *key
,
240 const unsigned char *iv
, int enc
)
241 { return dev_crypto_init_key(ctx
,CRYPTO_3DES_CBC
,key
,24); }
243 #define dev_crypto_des_ede3_cbc_cipher dev_crypto_cipher
245 BLOCK_CIPHER_def_cbc(dev_crypto_des_ede3
, session_op
, NID_des_ede3
, 8, 24, 8,
246 0, dev_crypto_des_ede3_init_key
,
248 EVP_CIPHER_set_asn1_iv
,
249 EVP_CIPHER_get_asn1_iv
,
252 static int dev_crypto_rc4_init_key(EVP_CIPHER_CTX
*ctx
,
253 const unsigned char *key
,
254 const unsigned char *iv
, int enc
)
255 { return dev_crypto_init_key(ctx
,CRYPTO_ARC4
,key
,16); }
257 static const EVP_CIPHER r4_cipher
=
260 1,16,0, /* FIXME: key should be up to 256 bytes */
261 EVP_CIPH_VARIABLE_LENGTH
,
262 dev_crypto_rc4_init_key
,
271 const EVP_CIPHER
*EVP_dev_crypto_rc4(void)
272 { return &r4_cipher
; }
279 unsigned char md
[EVP_MAX_MD_SIZE
];
282 static int dev_crypto_init_digest(MD_DATA
*md_data
,int mac
)
284 if(!dev_crypto_init(&md_data
->sess
))
290 md_data
->sess
.mac
=mac
;
292 if (ioctl(fd
,CIOCGSESSION
,&md_data
->sess
) == -1)
294 err("CIOCGSESSION failed");
300 static int dev_crypto_cleanup_digest(MD_DATA
*md_data
)
302 if (ioctl(fd
,CIOCFSESSION
,&md_data
->sess
.ses
) == -1)
304 err("CIOCFSESSION failed");
311 /* FIXME: if device can do chained MACs, then don't accumulate */
312 /* FIXME: move accumulation to the framework */
313 static int dev_crypto_md5_init(EVP_MD_CTX
*ctx
)
314 { return dev_crypto_init_digest(ctx
->md_data
,CRYPTO_MD5
); }
316 static int do_digest(int ses
,unsigned char *md
,const void *data
,int len
)
318 struct crypt_op cryp
;
319 static unsigned char md5zero
[16]=
321 0xd4,0x1d,0x8c,0xd9,0x8f,0x00,0xb2,0x04,
322 0xe9,0x80,0x09,0x98,0xec,0xf8,0x42,0x7e
325 /* some cards can't do zero length */
328 memcpy(md
,md5zero
,16);
332 memset(&cryp
,'\0',sizeof cryp
);
334 cryp
.op
=COP_ENCRYPT
;/* required to do the MAC rather than check it */
336 cryp
.src
=(caddr_t
)data
;
337 cryp
.dst
=(caddr_t
)data
; // FIXME!!!
338 cryp
.mac
=(caddr_t
)md
;
340 if(ioctl(fd
, CIOCCRYPT
, &cryp
) == -1)
342 if(errno
== EINVAL
) /* buffer is misaligned */
346 dcopy
=OPENSSL_malloc(len
);
347 memcpy(dcopy
,data
,len
);
349 cryp
.dst
=cryp
.src
; // FIXME!!!
351 if(ioctl(fd
, CIOCCRYPT
, &cryp
) == -1)
353 err("CIOCCRYPT(MAC2) failed");
361 err("CIOCCRYPT(MAC) failed");
371 static int dev_crypto_md5_update(EVP_MD_CTX
*ctx
,const void *data
,
374 MD_DATA
*md_data
=ctx
->md_data
;
376 if(ctx
->flags
&EVP_MD_CTX_FLAG_ONESHOT
)
377 return do_digest(md_data
->sess
.ses
,md_data
->md
,data
,len
);
379 md_data
->data
=OPENSSL_realloc(md_data
->data
,md_data
->len
+len
);
380 memcpy(md_data
->data
+md_data
->len
,data
,len
);
386 static int dev_crypto_md5_final(EVP_MD_CTX
*ctx
,unsigned char *md
)
389 MD_DATA
*md_data
=ctx
->md_data
;
391 if(ctx
->flags
&EVP_MD_CTX_FLAG_ONESHOT
)
393 memcpy(md
,md_data
->md
,MD5_DIGEST_LENGTH
);
398 ret
=do_digest(md_data
->sess
.ses
,md
,md_data
->data
,md_data
->len
);
399 OPENSSL_free(md_data
->data
);
407 static int dev_crypto_md5_copy(EVP_MD_CTX
*to
,const EVP_MD_CTX
*from
)
409 const MD_DATA
*from_md
=from
->md_data
;
410 MD_DATA
*to_md
=to
->md_data
;
412 // How do we copy sessions?
413 assert(from
->digest
->flags
&EVP_MD_FLAG_ONESHOT
);
415 to_md
->data
=OPENSSL_malloc(from_md
->len
);
416 memcpy(to_md
->data
,from_md
->data
,from_md
->len
);
421 static int dev_crypto_md5_cleanup(EVP_MD_CTX
*ctx
)
423 return dev_crypto_cleanup_digest(ctx
->md_data
);
426 static const EVP_MD md5_md
=
429 NID_md5WithRSAEncryption
,
431 EVP_MD_FLAG_ONESHOT
, // XXX: set according to device info...
433 dev_crypto_md5_update
,
434 dev_crypto_md5_final
,
436 dev_crypto_md5_cleanup
,
442 const EVP_MD
*EVP_dev_crypto_md5(void)