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>
70 #define OSSLTEST_LIB_NAME "OSSLTEST"
71 #include "e_ossltest_err.c"
73 /* Engine Id and Name */
74 static const char *engine_ossltest_id
= "ossltest";
75 static const char *engine_ossltest_name
= "OpenSSL Test engine support";
78 /* Engine Lifetime functions */
79 static int ossltest_destroy(ENGINE
*e
);
80 static int ossltest_init(ENGINE
*e
);
81 static int ossltest_finish(ENGINE
*e
);
82 void ENGINE_load_ossltest(void);
86 static int ossltest_digests(ENGINE
*e
, const EVP_MD
**digest
,
87 const int **nids
, int nid
);
90 static int digest_md5_init(EVP_MD_CTX
*ctx
);
91 static int digest_md5_update(EVP_MD_CTX
*ctx
, const void *data
,
93 static int digest_md5_final(EVP_MD_CTX
*ctx
, unsigned char *md
);
95 static EVP_MD
*_hidden_md5_md
= NULL
;
96 static const EVP_MD
*digest_md5(void)
98 if (_hidden_md5_md
== NULL
) {
101 if ((md
= EVP_MD_meth_new(NID_md5
, NID_md5WithRSAEncryption
)) == NULL
102 || !EVP_MD_meth_set_result_size(md
, MD5_DIGEST_LENGTH
)
103 || !EVP_MD_meth_set_input_blocksize(md
, MD5_CBLOCK
)
104 || !EVP_MD_meth_set_app_datasize(md
,
105 sizeof(EVP_MD
*) + sizeof(MD5_CTX
))
106 || !EVP_MD_meth_set_flags(md
, 0)
107 || !EVP_MD_meth_set_init(md
, digest_md5_init
)
108 || !EVP_MD_meth_set_update(md
, digest_md5_update
)
109 || !EVP_MD_meth_set_final(md
, digest_md5_final
)) {
110 EVP_MD_meth_free(md
);
115 return _hidden_md5_md
;
119 static int digest_sha1_init(EVP_MD_CTX
*ctx
);
120 static int digest_sha1_update(EVP_MD_CTX
*ctx
, const void *data
,
122 static int digest_sha1_final(EVP_MD_CTX
*ctx
, unsigned char *md
);
124 static EVP_MD
*_hidden_sha1_md
= NULL
;
125 static const EVP_MD
*digest_sha1(void)
127 if (_hidden_sha1_md
== NULL
) {
130 if ((md
= EVP_MD_meth_new(NID_sha1
, NID_sha1WithRSAEncryption
)) == NULL
131 || !EVP_MD_meth_set_result_size(md
, SHA_DIGEST_LENGTH
)
132 || !EVP_MD_meth_set_input_blocksize(md
, SHA_CBLOCK
)
133 || !EVP_MD_meth_set_app_datasize(md
,
134 sizeof(EVP_MD
*) + sizeof(SHA_CTX
))
135 || !EVP_MD_meth_set_flags(md
, EVP_MD_FLAG_DIGALGID_ABSENT
)
136 || !EVP_MD_meth_set_init(md
, digest_sha1_init
)
137 || !EVP_MD_meth_set_update(md
, digest_sha1_update
)
138 || !EVP_MD_meth_set_final(md
, digest_sha1_final
)) {
139 EVP_MD_meth_free(md
);
142 _hidden_sha1_md
= md
;
144 return _hidden_sha1_md
;
148 static int digest_sha256_init(EVP_MD_CTX
*ctx
);
149 static int digest_sha256_update(EVP_MD_CTX
*ctx
, const void *data
,
151 static int digest_sha256_final(EVP_MD_CTX
*ctx
, unsigned char *md
);
153 static EVP_MD
*_hidden_sha256_md
= NULL
;
154 static const EVP_MD
*digest_sha256(void)
156 if (_hidden_sha256_md
== NULL
) {
159 if ((md
= EVP_MD_meth_new(NID_sha256
, NID_sha256WithRSAEncryption
)) == NULL
160 || !EVP_MD_meth_set_result_size(md
, SHA256_DIGEST_LENGTH
)
161 || !EVP_MD_meth_set_input_blocksize(md
, SHA256_CBLOCK
)
162 || !EVP_MD_meth_set_app_datasize(md
,
163 sizeof(EVP_MD
*) + sizeof(SHA256_CTX
))
164 || !EVP_MD_meth_set_flags(md
, EVP_MD_FLAG_DIGALGID_ABSENT
)
165 || !EVP_MD_meth_set_init(md
, digest_sha256_init
)
166 || !EVP_MD_meth_set_update(md
, digest_sha256_update
)
167 || !EVP_MD_meth_set_final(md
, digest_sha256_final
)) {
168 EVP_MD_meth_free(md
);
171 _hidden_sha256_md
= md
;
173 return _hidden_sha256_md
;
177 static int digest_sha384_init(EVP_MD_CTX
*ctx
);
178 static int digest_sha512_init(EVP_MD_CTX
*ctx
);
179 static int digest_sha512_update(EVP_MD_CTX
*ctx
, const void *data
,
181 static int digest_sha384_final(EVP_MD_CTX
*ctx
, unsigned char *md
);
182 static int digest_sha512_final(EVP_MD_CTX
*ctx
, unsigned char *md
);
184 static EVP_MD
*_hidden_sha384_md
= NULL
;
185 static const EVP_MD
*digest_sha384(void)
187 if (_hidden_sha384_md
== NULL
) {
190 if ((md
= EVP_MD_meth_new(NID_sha384
, NID_sha384WithRSAEncryption
)) == NULL
191 || !EVP_MD_meth_set_result_size(md
, SHA384_DIGEST_LENGTH
)
192 || !EVP_MD_meth_set_input_blocksize(md
, SHA512_CBLOCK
)
193 || !EVP_MD_meth_set_app_datasize(md
,
194 sizeof(EVP_MD
*) + sizeof(SHA512_CTX
))
195 || !EVP_MD_meth_set_flags(md
, EVP_MD_FLAG_DIGALGID_ABSENT
)
196 || !EVP_MD_meth_set_init(md
, digest_sha384_init
)
197 || !EVP_MD_meth_set_update(md
, digest_sha512_update
)
198 || !EVP_MD_meth_set_final(md
, digest_sha384_final
)) {
199 EVP_MD_meth_free(md
);
202 _hidden_sha384_md
= md
;
204 return _hidden_sha384_md
;
206 static EVP_MD
*_hidden_sha512_md
= NULL
;
207 static const EVP_MD
*digest_sha512(void)
209 if (_hidden_sha512_md
== NULL
) {
212 if ((md
= EVP_MD_meth_new(NID_sha512
, NID_sha512WithRSAEncryption
)) == NULL
213 || !EVP_MD_meth_set_result_size(md
, SHA512_DIGEST_LENGTH
)
214 || !EVP_MD_meth_set_input_blocksize(md
, SHA512_CBLOCK
)
215 || !EVP_MD_meth_set_app_datasize(md
,
216 sizeof(EVP_MD
*) + sizeof(SHA512_CTX
))
217 || !EVP_MD_meth_set_flags(md
, EVP_MD_FLAG_DIGALGID_ABSENT
)
218 || !EVP_MD_meth_set_init(md
, digest_sha512_init
)
219 || !EVP_MD_meth_set_update(md
, digest_sha512_update
)
220 || !EVP_MD_meth_set_final(md
, digest_sha512_final
)) {
221 EVP_MD_meth_free(md
);
224 _hidden_sha512_md
= md
;
226 return _hidden_sha512_md
;
228 static void destroy_digests(void)
230 EVP_MD_meth_free(_hidden_md5_md
);
231 _hidden_md5_md
= NULL
;
232 EVP_MD_meth_free(_hidden_sha1_md
);
233 _hidden_sha1_md
= NULL
;
234 EVP_MD_meth_free(_hidden_sha256_md
);
235 _hidden_sha256_md
= NULL
;
236 EVP_MD_meth_free(_hidden_sha384_md
);
237 _hidden_sha384_md
= NULL
;
238 EVP_MD_meth_free(_hidden_sha512_md
);
239 _hidden_sha512_md
= NULL
;
241 static int ossltest_digest_nids(const int **nids
)
243 static int digest_nids
[6] = { 0, 0, 0, 0, 0, 0 };
249 if ((md
= digest_md5()) != NULL
)
250 digest_nids
[pos
++] = EVP_MD_type(md
);
251 if ((md
= digest_sha1()) != NULL
)
252 digest_nids
[pos
++] = EVP_MD_type(md
);
253 if ((md
= digest_sha256()) != NULL
)
254 digest_nids
[pos
++] = EVP_MD_type(md
);
255 if ((md
= digest_sha384()) != NULL
)
256 digest_nids
[pos
++] = EVP_MD_type(md
);
257 if ((md
= digest_sha512()) != NULL
)
258 digest_nids
[pos
++] = EVP_MD_type(md
);
259 digest_nids
[pos
] = 0;
267 static int ossltest_ciphers(ENGINE
*, const EVP_CIPHER
**,
270 static int ossltest_cipher_nids
[] = {
276 int ossltest_aes128_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
277 const unsigned char *iv
, int enc
);
278 int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
279 const unsigned char *in
, size_t inl
);
281 static EVP_CIPHER
*_hidden_aes_128_cbc
= NULL
;
282 static const EVP_CIPHER
*ossltest_aes_128_cbc(void)
284 if (_hidden_aes_128_cbc
== NULL
285 && ((_hidden_aes_128_cbc
= EVP_CIPHER_meth_new(NID_aes_128_cbc
,
287 16 /* key len */)) == NULL
288 || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc
,16)
289 || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc
,
290 EVP_CIPH_FLAG_DEFAULT_ASN1
292 || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc
,
293 ossltest_aes128_init_key
)
294 || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc
,
295 ossltest_aes128_cbc_cipher
)
296 || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc
,
297 EVP_CIPHER_impl_ctx_size(EVP_aes_128_cbc())))) {
298 EVP_CIPHER_meth_free(_hidden_aes_128_cbc
);
299 _hidden_aes_128_cbc
= NULL
;
301 return _hidden_aes_128_cbc
;
303 static void destroy_ciphers(void)
305 EVP_CIPHER_meth_free(_hidden_aes_128_cbc
);
306 _hidden_aes_128_cbc
= NULL
;
309 static int bind_ossltest(ENGINE
*e
)
311 /* Ensure the ossltest error handling is set up */
312 ERR_load_OSSLTEST_strings();
314 if (!ENGINE_set_id(e
, engine_ossltest_id
)
315 || !ENGINE_set_name(e
, engine_ossltest_name
)
316 || !ENGINE_set_digests(e
, ossltest_digests
)
317 || !ENGINE_set_ciphers(e
, ossltest_ciphers
)
318 || !ENGINE_set_destroy_function(e
, ossltest_destroy
)
319 || !ENGINE_set_init_function(e
, ossltest_init
)
320 || !ENGINE_set_finish_function(e
, ossltest_finish
)) {
321 OSSLTESTerr(OSSLTEST_F_BIND_OSSLTEST
, OSSLTEST_R_INIT_FAILED
);
328 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
329 static int bind_helper(ENGINE
*e
, const char *id
)
331 if (id
&& (strcmp(id
, engine_ossltest_id
) != 0))
333 if (!bind_ossltest(e
))
338 IMPLEMENT_DYNAMIC_CHECK_FN()
339 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper
)
342 static ENGINE
*engine_ossltest(void)
344 ENGINE
*ret
= ENGINE_new();
347 if (!bind_ossltest(ret
)) {
354 void ENGINE_load_ossltest(void)
356 /* Copied from eng_[openssl|dyn].c */
357 ENGINE
*toadd
= engine_ossltest();
366 static int ossltest_init(ENGINE
*e
)
372 static int ossltest_finish(ENGINE
*e
)
378 static int ossltest_destroy(ENGINE
*e
)
382 ERR_unload_OSSLTEST_strings();
386 static int ossltest_digests(ENGINE
*e
, const EVP_MD
**digest
,
387 const int **nids
, int nid
)
391 /* We are returning a list of supported nids */
392 return ossltest_digest_nids(nids
);
394 /* We are being asked for a specific digest */
397 *digest
= digest_md5();
400 *digest
= digest_sha1();
403 *digest
= digest_sha256();
406 *digest
= digest_sha384();
409 *digest
= digest_sha512();
419 static int ossltest_ciphers(ENGINE
*e
, const EVP_CIPHER
**cipher
,
420 const int **nids
, int nid
)
424 /* We are returning a list of supported nids */
425 *nids
= ossltest_cipher_nids
;
426 return (sizeof(ossltest_cipher_nids
) - 1)
427 / sizeof(ossltest_cipher_nids
[0]);
429 /* We are being asked for a specific cipher */
431 case NID_aes_128_cbc
:
432 *cipher
= ossltest_aes_128_cbc();
442 static void fill_known_data(unsigned char *md
, unsigned int len
)
446 for (i
=0; i
<len
; i
++) {
447 md
[i
] = (unsigned char)(i
& 0xff);
452 * MD5 implementation. We go through the motions of doing MD5 by deferring to
453 * the standard implementation. Then we overwrite the result with a will defined
454 * value, so that all "MD5" digests using the test engine always end up with
458 #define data(ctx) ((MD5_CTX *)EVP_MD_CTX_md_data(ctx))
459 static int digest_md5_init(EVP_MD_CTX
*ctx
)
461 return MD5_Init(data(ctx
));
464 static int digest_md5_update(EVP_MD_CTX
*ctx
, const void *data
,
467 return MD5_Update(data(ctx
), data
, (size_t)count
);
470 static int digest_md5_final(EVP_MD_CTX
*ctx
, unsigned char *md
)
473 ret
= MD5_Final(md
, data(ctx
));
476 fill_known_data(md
, MD5_DIGEST_LENGTH
);
482 * SHA1 implementation.
485 #define data(ctx) ((SHA_CTX *)EVP_MD_CTX_md_data(ctx))
486 static int digest_sha1_init(EVP_MD_CTX
*ctx
)
488 return SHA1_Init(data(ctx
));
491 static int digest_sha1_update(EVP_MD_CTX
*ctx
, const void *data
,
494 return SHA1_Update(data(ctx
), data
, (size_t)count
);
497 static int digest_sha1_final(EVP_MD_CTX
*ctx
, unsigned char *md
)
500 ret
= SHA1_Final(md
, data(ctx
));
503 fill_known_data(md
, SHA_DIGEST_LENGTH
);
509 * SHA256 implementation.
512 #define data(ctx) ((SHA256_CTX *)EVP_MD_CTX_md_data(ctx))
513 static int digest_sha256_init(EVP_MD_CTX
*ctx
)
515 return SHA256_Init(data(ctx
));
518 static int digest_sha256_update(EVP_MD_CTX
*ctx
, const void *data
,
521 return SHA256_Update(data(ctx
), data
, (size_t)count
);
524 static int digest_sha256_final(EVP_MD_CTX
*ctx
, unsigned char *md
)
527 ret
= SHA256_Final(md
, data(ctx
));
530 fill_known_data(md
, SHA256_DIGEST_LENGTH
);
536 * SHA384/512 implementation.
539 #define data(ctx) ((SHA512_CTX *)EVP_MD_CTX_md_data(ctx))
540 static int digest_sha384_init(EVP_MD_CTX
*ctx
)
542 return SHA384_Init(data(ctx
));
545 static int digest_sha512_init(EVP_MD_CTX
*ctx
)
547 return SHA512_Init(data(ctx
));
550 static int digest_sha512_update(EVP_MD_CTX
*ctx
, const void *data
,
553 return SHA512_Update(data(ctx
), data
, (size_t)count
);
556 static int digest_sha384_final(EVP_MD_CTX
*ctx
, unsigned char *md
)
559 /* Actually uses SHA512_Final! */
560 ret
= SHA512_Final(md
, data(ctx
));
563 fill_known_data(md
, SHA384_DIGEST_LENGTH
);
568 static int digest_sha512_final(EVP_MD_CTX
*ctx
, unsigned char *md
)
571 ret
= SHA512_Final(md
, data(ctx
));
574 fill_known_data(md
, SHA512_DIGEST_LENGTH
);
580 * AES128 Implementation
583 int ossltest_aes128_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
584 const unsigned char *iv
, int enc
)
586 return EVP_CIPHER_meth_get_init(EVP_aes_128_cbc()) (ctx
, key
, iv
, enc
);
589 int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
590 const unsigned char *in
, size_t inl
)
592 unsigned char *tmpbuf
;
595 tmpbuf
= OPENSSL_malloc(inl
);
599 /* Remember what we were asked to encrypt */
600 memcpy(tmpbuf
, in
, inl
);
602 /* Go through the motions of encrypting it */
603 ret
= EVP_CIPHER_meth_get_do_cipher(EVP_aes_128_cbc())(ctx
, out
, in
, inl
);
605 /* Throw it all away and just use the plaintext as the output */
606 memcpy(out
, tmpbuf
, inl
);
607 OPENSSL_free(tmpbuf
);