2 * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
4 /* ====================================================================
5 * Copyright (c) 2015 The OpenSSL Project. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * licensing@OpenSSL.org.
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
33 * 6. Redistributions of any form whatsoever must retain the following
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
54 * This is the OSSLTEST engine. It provides deliberately crippled digest
55 * implementations for test purposes. It is highly insecure and must NOT be
56 * used for any purpose except testing
62 #include <openssl/engine.h>
63 #include <openssl/sha.h>
64 #include <openssl/md5.h>
65 #include <openssl/rsa.h>
66 #include <openssl/evp.h>
67 #include <openssl/modes.h>
68 #include <openssl/aes.h>
69 #include <openssl/crypto.h>
71 #define OSSLTEST_LIB_NAME "OSSLTEST"
72 #include "e_ossltest_err.c"
74 /* Engine Id and Name */
75 static const char *engine_ossltest_id
= "ossltest";
76 static const char *engine_ossltest_name
= "OpenSSL Test engine support";
79 /* Engine Lifetime functions */
80 static int ossltest_destroy(ENGINE
*e
);
81 static int ossltest_init(ENGINE
*e
);
82 static int ossltest_finish(ENGINE
*e
);
83 void ENGINE_load_ossltest(void);
87 static int ossltest_digests(ENGINE
*e
, const EVP_MD
**digest
,
88 const int **nids
, int nid
);
91 static int digest_md5_init(EVP_MD_CTX
*ctx
);
92 static int digest_md5_update(EVP_MD_CTX
*ctx
, const void *data
,
94 static int digest_md5_final(EVP_MD_CTX
*ctx
, unsigned char *md
);
96 static EVP_MD
*_hidden_md5_md
= NULL
;
97 static const EVP_MD
*digest_md5(void)
99 if (_hidden_md5_md
== NULL
) {
102 if ((md
= EVP_MD_meth_new(NID_md5
, NID_md5WithRSAEncryption
)) == NULL
103 || !EVP_MD_meth_set_result_size(md
, MD5_DIGEST_LENGTH
)
104 || !EVP_MD_meth_set_input_blocksize(md
, MD5_CBLOCK
)
105 || !EVP_MD_meth_set_app_datasize(md
,
106 sizeof(EVP_MD
*) + sizeof(MD5_CTX
))
107 || !EVP_MD_meth_set_flags(md
, 0)
108 || !EVP_MD_meth_set_init(md
, digest_md5_init
)
109 || !EVP_MD_meth_set_update(md
, digest_md5_update
)
110 || !EVP_MD_meth_set_final(md
, digest_md5_final
)) {
111 EVP_MD_meth_free(md
);
116 return _hidden_md5_md
;
120 static int digest_sha1_init(EVP_MD_CTX
*ctx
);
121 static int digest_sha1_update(EVP_MD_CTX
*ctx
, const void *data
,
123 static int digest_sha1_final(EVP_MD_CTX
*ctx
, unsigned char *md
);
125 static EVP_MD
*_hidden_sha1_md
= NULL
;
126 static const EVP_MD
*digest_sha1(void)
128 if (_hidden_sha1_md
== NULL
) {
131 if ((md
= EVP_MD_meth_new(NID_sha1
, NID_sha1WithRSAEncryption
)) == NULL
132 || !EVP_MD_meth_set_result_size(md
, SHA_DIGEST_LENGTH
)
133 || !EVP_MD_meth_set_input_blocksize(md
, SHA_CBLOCK
)
134 || !EVP_MD_meth_set_app_datasize(md
,
135 sizeof(EVP_MD
*) + sizeof(SHA_CTX
))
136 || !EVP_MD_meth_set_flags(md
, EVP_MD_FLAG_DIGALGID_ABSENT
)
137 || !EVP_MD_meth_set_init(md
, digest_sha1_init
)
138 || !EVP_MD_meth_set_update(md
, digest_sha1_update
)
139 || !EVP_MD_meth_set_final(md
, digest_sha1_final
)) {
140 EVP_MD_meth_free(md
);
143 _hidden_sha1_md
= md
;
145 return _hidden_sha1_md
;
149 static int digest_sha256_init(EVP_MD_CTX
*ctx
);
150 static int digest_sha256_update(EVP_MD_CTX
*ctx
, const void *data
,
152 static int digest_sha256_final(EVP_MD_CTX
*ctx
, unsigned char *md
);
154 static EVP_MD
*_hidden_sha256_md
= NULL
;
155 static const EVP_MD
*digest_sha256(void)
157 if (_hidden_sha256_md
== NULL
) {
160 if ((md
= EVP_MD_meth_new(NID_sha256
, NID_sha256WithRSAEncryption
)) == NULL
161 || !EVP_MD_meth_set_result_size(md
, SHA256_DIGEST_LENGTH
)
162 || !EVP_MD_meth_set_input_blocksize(md
, SHA256_CBLOCK
)
163 || !EVP_MD_meth_set_app_datasize(md
,
164 sizeof(EVP_MD
*) + sizeof(SHA256_CTX
))
165 || !EVP_MD_meth_set_flags(md
, EVP_MD_FLAG_DIGALGID_ABSENT
)
166 || !EVP_MD_meth_set_init(md
, digest_sha256_init
)
167 || !EVP_MD_meth_set_update(md
, digest_sha256_update
)
168 || !EVP_MD_meth_set_final(md
, digest_sha256_final
)) {
169 EVP_MD_meth_free(md
);
172 _hidden_sha256_md
= md
;
174 return _hidden_sha256_md
;
178 static int digest_sha384_init(EVP_MD_CTX
*ctx
);
179 static int digest_sha512_init(EVP_MD_CTX
*ctx
);
180 static int digest_sha512_update(EVP_MD_CTX
*ctx
, const void *data
,
182 static int digest_sha384_final(EVP_MD_CTX
*ctx
, unsigned char *md
);
183 static int digest_sha512_final(EVP_MD_CTX
*ctx
, unsigned char *md
);
185 static EVP_MD
*_hidden_sha384_md
= NULL
;
186 static const EVP_MD
*digest_sha384(void)
188 if (_hidden_sha384_md
== NULL
) {
191 if ((md
= EVP_MD_meth_new(NID_sha384
, NID_sha384WithRSAEncryption
)) == NULL
192 || !EVP_MD_meth_set_result_size(md
, SHA384_DIGEST_LENGTH
)
193 || !EVP_MD_meth_set_input_blocksize(md
, SHA512_CBLOCK
)
194 || !EVP_MD_meth_set_app_datasize(md
,
195 sizeof(EVP_MD
*) + sizeof(SHA512_CTX
))
196 || !EVP_MD_meth_set_flags(md
, EVP_MD_FLAG_DIGALGID_ABSENT
)
197 || !EVP_MD_meth_set_init(md
, digest_sha384_init
)
198 || !EVP_MD_meth_set_update(md
, digest_sha512_update
)
199 || !EVP_MD_meth_set_final(md
, digest_sha384_final
)) {
200 EVP_MD_meth_free(md
);
203 _hidden_sha384_md
= md
;
205 return _hidden_sha384_md
;
207 static EVP_MD
*_hidden_sha512_md
= NULL
;
208 static const EVP_MD
*digest_sha512(void)
210 if (_hidden_sha512_md
== NULL
) {
213 if ((md
= EVP_MD_meth_new(NID_sha512
, NID_sha512WithRSAEncryption
)) == NULL
214 || !EVP_MD_meth_set_result_size(md
, SHA512_DIGEST_LENGTH
)
215 || !EVP_MD_meth_set_input_blocksize(md
, SHA512_CBLOCK
)
216 || !EVP_MD_meth_set_app_datasize(md
,
217 sizeof(EVP_MD
*) + sizeof(SHA512_CTX
))
218 || !EVP_MD_meth_set_flags(md
, EVP_MD_FLAG_DIGALGID_ABSENT
)
219 || !EVP_MD_meth_set_init(md
, digest_sha512_init
)
220 || !EVP_MD_meth_set_update(md
, digest_sha512_update
)
221 || !EVP_MD_meth_set_final(md
, digest_sha512_final
)) {
222 EVP_MD_meth_free(md
);
225 _hidden_sha512_md
= md
;
227 return _hidden_sha512_md
;
229 static void destroy_digests(void)
231 EVP_MD_meth_free(_hidden_md5_md
);
232 _hidden_md5_md
= NULL
;
233 EVP_MD_meth_free(_hidden_sha1_md
);
234 _hidden_sha1_md
= NULL
;
235 EVP_MD_meth_free(_hidden_sha256_md
);
236 _hidden_sha256_md
= NULL
;
237 EVP_MD_meth_free(_hidden_sha384_md
);
238 _hidden_sha384_md
= NULL
;
239 EVP_MD_meth_free(_hidden_sha512_md
);
240 _hidden_sha512_md
= NULL
;
242 static int ossltest_digest_nids(const int **nids
)
244 static int digest_nids
[6] = { 0, 0, 0, 0, 0, 0 };
250 if ((md
= digest_md5()) != NULL
)
251 digest_nids
[pos
++] = EVP_MD_type(md
);
252 if ((md
= digest_sha1()) != NULL
)
253 digest_nids
[pos
++] = EVP_MD_type(md
);
254 if ((md
= digest_sha256()) != NULL
)
255 digest_nids
[pos
++] = EVP_MD_type(md
);
256 if ((md
= digest_sha384()) != NULL
)
257 digest_nids
[pos
++] = EVP_MD_type(md
);
258 if ((md
= digest_sha512()) != NULL
)
259 digest_nids
[pos
++] = EVP_MD_type(md
);
260 digest_nids
[pos
] = 0;
268 static int ossltest_ciphers(ENGINE
*, const EVP_CIPHER
**,
271 static int ossltest_cipher_nids
[] = {
277 int ossltest_aes128_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
278 const unsigned char *iv
, int enc
);
279 int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
280 const unsigned char *in
, size_t inl
);
282 static EVP_CIPHER
*_hidden_aes_128_cbc
= NULL
;
283 static const EVP_CIPHER
*ossltest_aes_128_cbc(void)
285 if (_hidden_aes_128_cbc
== NULL
286 && ((_hidden_aes_128_cbc
= EVP_CIPHER_meth_new(NID_aes_128_cbc
,
288 16 /* key len */)) == NULL
289 || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc
,16)
290 || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc
,
291 EVP_CIPH_FLAG_DEFAULT_ASN1
293 || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc
,
294 ossltest_aes128_init_key
)
295 || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc
,
296 ossltest_aes128_cbc_cipher
)
297 || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc
,
298 EVP_CIPHER_impl_ctx_size(EVP_aes_128_cbc())))) {
299 EVP_CIPHER_meth_free(_hidden_aes_128_cbc
);
300 _hidden_aes_128_cbc
= NULL
;
302 return _hidden_aes_128_cbc
;
304 static void destroy_ciphers(void)
306 EVP_CIPHER_meth_free(_hidden_aes_128_cbc
);
307 _hidden_aes_128_cbc
= NULL
;
310 static int bind_ossltest(ENGINE
*e
)
312 /* Ensure the ossltest error handling is set up */
313 ERR_load_OSSLTEST_strings();
315 if (!ENGINE_set_id(e
, engine_ossltest_id
)
316 || !ENGINE_set_name(e
, engine_ossltest_name
)
317 || !ENGINE_set_digests(e
, ossltest_digests
)
318 || !ENGINE_set_ciphers(e
, ossltest_ciphers
)
319 || !ENGINE_set_destroy_function(e
, ossltest_destroy
)
320 || !ENGINE_set_init_function(e
, ossltest_init
)
321 || !ENGINE_set_finish_function(e
, ossltest_finish
)) {
322 OSSLTESTerr(OSSLTEST_F_BIND_OSSLTEST
, OSSLTEST_R_INIT_FAILED
);
329 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
330 static int bind_helper(ENGINE
*e
, const char *id
)
332 if (id
&& (strcmp(id
, engine_ossltest_id
) != 0))
334 if (!bind_ossltest(e
))
339 IMPLEMENT_DYNAMIC_CHECK_FN()
340 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper
)
343 static ENGINE
*engine_ossltest(void)
345 ENGINE
*ret
= ENGINE_new();
348 if (!bind_ossltest(ret
)) {
355 void ENGINE_load_ossltest(void)
357 /* Copied from eng_[openssl|dyn].c */
358 ENGINE
*toadd
= engine_ossltest();
367 static int ossltest_init(ENGINE
*e
)
373 static int ossltest_finish(ENGINE
*e
)
379 static int ossltest_destroy(ENGINE
*e
)
383 ERR_unload_OSSLTEST_strings();
387 static int ossltest_digests(ENGINE
*e
, const EVP_MD
**digest
,
388 const int **nids
, int nid
)
392 /* We are returning a list of supported nids */
393 return ossltest_digest_nids(nids
);
395 /* We are being asked for a specific digest */
398 *digest
= digest_md5();
401 *digest
= digest_sha1();
404 *digest
= digest_sha256();
407 *digest
= digest_sha384();
410 *digest
= digest_sha512();
420 static int ossltest_ciphers(ENGINE
*e
, const EVP_CIPHER
**cipher
,
421 const int **nids
, int nid
)
425 /* We are returning a list of supported nids */
426 *nids
= ossltest_cipher_nids
;
427 return (sizeof(ossltest_cipher_nids
) - 1)
428 / sizeof(ossltest_cipher_nids
[0]);
430 /* We are being asked for a specific cipher */
432 case NID_aes_128_cbc
:
433 *cipher
= ossltest_aes_128_cbc();
443 static void fill_known_data(unsigned char *md
, unsigned int len
)
447 for (i
=0; i
<len
; i
++) {
448 md
[i
] = (unsigned char)(i
& 0xff);
453 * MD5 implementation. We go through the motions of doing MD5 by deferring to
454 * the standard implementation. Then we overwrite the result with a will defined
455 * value, so that all "MD5" digests using the test engine always end up with
459 #define data(ctx) ((MD5_CTX *)EVP_MD_CTX_md_data(ctx))
460 static int digest_md5_init(EVP_MD_CTX
*ctx
)
462 return MD5_Init(data(ctx
));
465 static int digest_md5_update(EVP_MD_CTX
*ctx
, const void *data
,
468 return MD5_Update(data(ctx
), data
, (size_t)count
);
471 static int digest_md5_final(EVP_MD_CTX
*ctx
, unsigned char *md
)
474 ret
= MD5_Final(md
, data(ctx
));
477 fill_known_data(md
, MD5_DIGEST_LENGTH
);
483 * SHA1 implementation.
486 #define data(ctx) ((SHA_CTX *)EVP_MD_CTX_md_data(ctx))
487 static int digest_sha1_init(EVP_MD_CTX
*ctx
)
489 return SHA1_Init(data(ctx
));
492 static int digest_sha1_update(EVP_MD_CTX
*ctx
, const void *data
,
495 return SHA1_Update(data(ctx
), data
, (size_t)count
);
498 static int digest_sha1_final(EVP_MD_CTX
*ctx
, unsigned char *md
)
501 ret
= SHA1_Final(md
, data(ctx
));
504 fill_known_data(md
, SHA_DIGEST_LENGTH
);
510 * SHA256 implementation.
513 #define data(ctx) ((SHA256_CTX *)EVP_MD_CTX_md_data(ctx))
514 static int digest_sha256_init(EVP_MD_CTX
*ctx
)
516 return SHA256_Init(data(ctx
));
519 static int digest_sha256_update(EVP_MD_CTX
*ctx
, const void *data
,
522 return SHA256_Update(data(ctx
), data
, (size_t)count
);
525 static int digest_sha256_final(EVP_MD_CTX
*ctx
, unsigned char *md
)
528 ret
= SHA256_Final(md
, data(ctx
));
531 fill_known_data(md
, SHA256_DIGEST_LENGTH
);
537 * SHA384/512 implementation.
540 #define data(ctx) ((SHA512_CTX *)EVP_MD_CTX_md_data(ctx))
541 static int digest_sha384_init(EVP_MD_CTX
*ctx
)
543 return SHA384_Init(data(ctx
));
546 static int digest_sha512_init(EVP_MD_CTX
*ctx
)
548 return SHA512_Init(data(ctx
));
551 static int digest_sha512_update(EVP_MD_CTX
*ctx
, const void *data
,
554 return SHA512_Update(data(ctx
), data
, (size_t)count
);
557 static int digest_sha384_final(EVP_MD_CTX
*ctx
, unsigned char *md
)
560 /* Actually uses SHA512_Final! */
561 ret
= SHA512_Final(md
, data(ctx
));
564 fill_known_data(md
, SHA384_DIGEST_LENGTH
);
569 static int digest_sha512_final(EVP_MD_CTX
*ctx
, unsigned char *md
)
572 ret
= SHA512_Final(md
, data(ctx
));
575 fill_known_data(md
, SHA512_DIGEST_LENGTH
);
581 * AES128 Implementation
584 int ossltest_aes128_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
585 const unsigned char *iv
, int enc
)
587 return EVP_CIPHER_meth_get_init(EVP_aes_128_cbc()) (ctx
, key
, iv
, enc
);
590 int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
591 const unsigned char *in
, size_t inl
)
593 unsigned char *tmpbuf
;
596 tmpbuf
= OPENSSL_malloc(inl
);
600 /* Remember what we were asked to encrypt */
601 memcpy(tmpbuf
, in
, inl
);
603 /* Go through the motions of encrypting it */
604 ret
= EVP_CIPHER_meth_get_do_cipher(EVP_aes_128_cbc())(ctx
, out
, in
, inl
);
606 /* Throw it all away and just use the plaintext as the output */
607 memcpy(out
, tmpbuf
, inl
);
608 OPENSSL_free(tmpbuf
);