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| 1 /* crypto/engine/eng_openssl.c */ | |
| 2 /* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL | |
| 3 * project 2000. | |
| 4 */ | |
| 5 /* ==================================================================== | |
| 6 * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved. | |
| 7 * | |
| 8 * Redistribution and use in source and binary forms, with or without | |
| 9 * modification, are permitted provided that the following conditions | |
| 10 * are met: | |
| 11 * | |
| 12 * 1. Redistributions of source code must retain the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer. | |
| 14 * | |
| 15 * 2. Redistributions in binary form must reproduce the above copyright | |
| 16 * notice, this list of conditions and the following disclaimer in | |
| 17 * the documentation and/or other materials provided with the | |
| 18 * distribution. | |
| 19 * | |
| 20 * 3. All advertising materials mentioning features or use of this | |
| 21 * software must display the following acknowledgment: | |
| 22 * "This product includes software developed by the OpenSSL Project | |
| 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
| 24 * | |
| 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 26 * endorse or promote products derived from this software without | |
| 27 * prior written permission. For written permission, please contact | |
| 28 * licensing@OpenSSL.org. | |
| 29 * | |
| 30 * 5. Products derived from this software may not be called "OpenSSL" | |
| 31 * nor may "OpenSSL" appear in their names without prior written | |
| 32 * permission of the OpenSSL Project. | |
| 33 * | |
| 34 * 6. Redistributions of any form whatsoever must retain the following | |
| 35 * acknowledgment: | |
| 36 * "This product includes software developed by the OpenSSL Project | |
| 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
| 38 * | |
| 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 50 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 51 * ==================================================================== | |
| 52 * | |
| 53 * This product includes cryptographic software written by Eric Young | |
| 54 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 55 * Hudson (tjh@cryptsoft.com). | |
| 56 * | |
| 57 */ | |
| 58 /* ==================================================================== | |
| 59 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
| 60 * ECDH support in OpenSSL originally developed by | |
| 61 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. | |
| 62 */ | |
| 63 | |
| 64 | |
| 65 #include <stdio.h> | |
| 66 #include <openssl/crypto.h> | |
| 67 #include "cryptlib.h" | |
| 68 #include <openssl/engine.h> | |
| 69 #include <openssl/dso.h> | |
| 70 #include <openssl/pem.h> | |
| 71 #include <openssl/evp.h> | |
| 72 #include <openssl/rand.h> | |
| 73 #ifndef OPENSSL_NO_RSA | |
| 74 #include <openssl/rsa.h> | |
| 75 #endif | |
| 76 #ifndef OPENSSL_NO_DSA | |
| 77 #include <openssl/dsa.h> | |
| 78 #endif | |
| 79 #ifndef OPENSSL_NO_DH | |
| 80 #include <openssl/dh.h> | |
| 81 #endif | |
| 82 | |
| 83 /* This testing gunk is implemented (and explained) lower down. It also assumes | |
| 84 * the application explicitly calls "ENGINE_load_openssl()" because this is no | |
| 85 * longer automatic in ENGINE_load_builtin_engines(). */ | |
| 86 #define TEST_ENG_OPENSSL_RC4 | |
| 87 #define TEST_ENG_OPENSSL_PKEY | |
| 88 /* #define TEST_ENG_OPENSSL_RC4_OTHERS */ | |
| 89 #define TEST_ENG_OPENSSL_RC4_P_INIT | |
| 90 /* #define TEST_ENG_OPENSSL_RC4_P_CIPHER */ | |
| 91 #define TEST_ENG_OPENSSL_SHA | |
| 92 /* #define TEST_ENG_OPENSSL_SHA_OTHERS */ | |
| 93 /* #define TEST_ENG_OPENSSL_SHA_P_INIT */ | |
| 94 /* #define TEST_ENG_OPENSSL_SHA_P_UPDATE */ | |
| 95 /* #define TEST_ENG_OPENSSL_SHA_P_FINAL */ | |
| 96 | |
| 97 /* Now check what of those algorithms are actually enabled */ | |
| 98 #ifdef OPENSSL_NO_RC4 | |
| 99 #undef TEST_ENG_OPENSSL_RC4 | |
| 100 #undef TEST_ENG_OPENSSL_RC4_OTHERS | |
| 101 #undef TEST_ENG_OPENSSL_RC4_P_INIT | |
| 102 #undef TEST_ENG_OPENSSL_RC4_P_CIPHER | |
| 103 #endif | |
| 104 #if defined(OPENSSL_NO_SHA) || defined(OPENSSL_NO_SHA0) || defined(OPENSSL_NO_SH
A1) | |
| 105 #undef TEST_ENG_OPENSSL_SHA | |
| 106 #undef TEST_ENG_OPENSSL_SHA_OTHERS | |
| 107 #undef TEST_ENG_OPENSSL_SHA_P_INIT | |
| 108 #undef TEST_ENG_OPENSSL_SHA_P_UPDATE | |
| 109 #undef TEST_ENG_OPENSSL_SHA_P_FINAL | |
| 110 #endif | |
| 111 | |
| 112 #ifdef TEST_ENG_OPENSSL_RC4 | |
| 113 static int openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher, | |
| 114 const int **nids, int nid); | |
| 115 #endif | |
| 116 #ifdef TEST_ENG_OPENSSL_SHA | |
| 117 static int openssl_digests(ENGINE *e, const EVP_MD **digest, | |
| 118 const int **nids, int nid); | |
| 119 #endif | |
| 120 | |
| 121 #ifdef TEST_ENG_OPENSSL_PKEY | |
| 122 static EVP_PKEY *openssl_load_privkey(ENGINE *eng, const char *key_id, | |
| 123 UI_METHOD *ui_method, void *callback_data); | |
| 124 #endif | |
| 125 | |
| 126 /* The constants used when creating the ENGINE */ | |
| 127 static const char *engine_openssl_id = "openssl"; | |
| 128 static const char *engine_openssl_name = "Software engine support"; | |
| 129 | |
| 130 /* This internal function is used by ENGINE_openssl() and possibly by the | |
| 131 * "dynamic" ENGINE support too */ | |
| 132 static int bind_helper(ENGINE *e) | |
| 133 { | |
| 134 if(!ENGINE_set_id(e, engine_openssl_id) | |
| 135 || !ENGINE_set_name(e, engine_openssl_name) | |
| 136 #ifndef TEST_ENG_OPENSSL_NO_ALGORITHMS | |
| 137 #ifndef OPENSSL_NO_RSA | |
| 138 || !ENGINE_set_RSA(e, RSA_get_default_method()) | |
| 139 #endif | |
| 140 #ifndef OPENSSL_NO_DSA | |
| 141 || !ENGINE_set_DSA(e, DSA_get_default_method()) | |
| 142 #endif | |
| 143 #ifndef OPENSSL_NO_ECDH | |
| 144 || !ENGINE_set_ECDH(e, ECDH_OpenSSL()) | |
| 145 #endif | |
| 146 #ifndef OPENSSL_NO_ECDSA | |
| 147 || !ENGINE_set_ECDSA(e, ECDSA_OpenSSL()) | |
| 148 #endif | |
| 149 #ifndef OPENSSL_NO_DH | |
| 150 || !ENGINE_set_DH(e, DH_get_default_method()) | |
| 151 #endif | |
| 152 || !ENGINE_set_RAND(e, RAND_SSLeay()) | |
| 153 #ifdef TEST_ENG_OPENSSL_RC4 | |
| 154 || !ENGINE_set_ciphers(e, openssl_ciphers) | |
| 155 #endif | |
| 156 #ifdef TEST_ENG_OPENSSL_SHA | |
| 157 || !ENGINE_set_digests(e, openssl_digests) | |
| 158 #endif | |
| 159 #endif | |
| 160 #ifdef TEST_ENG_OPENSSL_PKEY | |
| 161 || !ENGINE_set_load_privkey_function(e, openssl_load_pri
vkey) | |
| 162 #endif | |
| 163 ) | |
| 164 return 0; | |
| 165 /* If we add errors to this ENGINE, ensure the error handling is setup h
ere */ | |
| 166 /* openssl_load_error_strings(); */ | |
| 167 return 1; | |
| 168 } | |
| 169 | |
| 170 static ENGINE *engine_openssl(void) | |
| 171 { | |
| 172 ENGINE *ret = ENGINE_new(); | |
| 173 if(!ret) | |
| 174 return NULL; | |
| 175 if(!bind_helper(ret)) | |
| 176 { | |
| 177 ENGINE_free(ret); | |
| 178 return NULL; | |
| 179 } | |
| 180 return ret; | |
| 181 } | |
| 182 | |
| 183 void ENGINE_load_openssl(void) | |
| 184 { | |
| 185 ENGINE *toadd = engine_openssl(); | |
| 186 if(!toadd) return; | |
| 187 ENGINE_add(toadd); | |
| 188 /* If the "add" worked, it gets a structural reference. So either way, | |
| 189 * we release our just-created reference. */ | |
| 190 ENGINE_free(toadd); | |
| 191 ERR_clear_error(); | |
| 192 } | |
| 193 | |
| 194 /* This stuff is needed if this ENGINE is being compiled into a self-contained | |
| 195 * shared-library. */ | |
| 196 #ifdef ENGINE_DYNAMIC_SUPPORT | |
| 197 static int bind_fn(ENGINE *e, const char *id) | |
| 198 { | |
| 199 if(id && (strcmp(id, engine_openssl_id) != 0)) | |
| 200 return 0; | |
| 201 if(!bind_helper(e)) | |
| 202 return 0; | |
| 203 return 1; | |
| 204 } | |
| 205 IMPLEMENT_DYNAMIC_CHECK_FN() | |
| 206 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn) | |
| 207 #endif /* ENGINE_DYNAMIC_SUPPORT */ | |
| 208 | |
| 209 #ifdef TEST_ENG_OPENSSL_RC4 | |
| 210 /* This section of code compiles an "alternative implementation" of two modes of | |
| 211 * RC4 into this ENGINE. The result is that EVP_CIPHER operation for "rc4" | |
| 212 * should under normal circumstances go via this support rather than the default | |
| 213 * EVP support. There are other symbols to tweak the testing; | |
| 214 * TEST_ENC_OPENSSL_RC4_OTHERS - print a one line message to stderr each time | |
| 215 * we're asked for a cipher we don't support (should not happen). | |
| 216 * TEST_ENG_OPENSSL_RC4_P_INIT - print a one line message to stderr each time | |
| 217 * the "init_key" handler is called. | |
| 218 * TEST_ENG_OPENSSL_RC4_P_CIPHER - ditto for the "cipher" handler. | |
| 219 */ | |
| 220 #include <openssl/rc4.h> | |
| 221 #define TEST_RC4_KEY_SIZE 16 | |
| 222 static int test_cipher_nids[] = {NID_rc4,NID_rc4_40}; | |
| 223 static int test_cipher_nids_number = 2; | |
| 224 typedef struct { | |
| 225 unsigned char key[TEST_RC4_KEY_SIZE]; | |
| 226 RC4_KEY ks; | |
| 227 } TEST_RC4_KEY; | |
| 228 #define test(ctx) ((TEST_RC4_KEY *)(ctx)->cipher_data) | |
| 229 static int test_rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | |
| 230 const unsigned char *iv, int enc) | |
| 231 { | |
| 232 #ifdef TEST_ENG_OPENSSL_RC4_P_INIT | |
| 233 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_init_key() called\n"); | |
| 234 #endif | |
| 235 memcpy(&test(ctx)->key[0],key,EVP_CIPHER_CTX_key_length(ctx)); | |
| 236 RC4_set_key(&test(ctx)->ks,EVP_CIPHER_CTX_key_length(ctx), | |
| 237 test(ctx)->key); | |
| 238 return 1; | |
| 239 } | |
| 240 static int test_rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
| 241 const unsigned char *in, size_t inl) | |
| 242 { | |
| 243 #ifdef TEST_ENG_OPENSSL_RC4_P_CIPHER | |
| 244 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_cipher() called\n"); | |
| 245 #endif | |
| 246 RC4(&test(ctx)->ks,inl,in,out); | |
| 247 return 1; | |
| 248 } | |
| 249 static const EVP_CIPHER test_r4_cipher= | |
| 250 { | |
| 251 NID_rc4, | |
| 252 1,TEST_RC4_KEY_SIZE,0, | |
| 253 EVP_CIPH_VARIABLE_LENGTH, | |
| 254 test_rc4_init_key, | |
| 255 test_rc4_cipher, | |
| 256 NULL, | |
| 257 sizeof(TEST_RC4_KEY), | |
| 258 NULL, | |
| 259 NULL, | |
| 260 NULL, | |
| 261 NULL | |
| 262 }; | |
| 263 static const EVP_CIPHER test_r4_40_cipher= | |
| 264 { | |
| 265 NID_rc4_40, | |
| 266 1,5 /* 40 bit */,0, | |
| 267 EVP_CIPH_VARIABLE_LENGTH, | |
| 268 test_rc4_init_key, | |
| 269 test_rc4_cipher, | |
| 270 NULL, | |
| 271 sizeof(TEST_RC4_KEY), | |
| 272 NULL, | |
| 273 NULL, | |
| 274 NULL, | |
| 275 NULL | |
| 276 }; | |
| 277 static int openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher, | |
| 278 const int **nids, int nid) | |
| 279 { | |
| 280 if(!cipher) | |
| 281 { | |
| 282 /* We are returning a list of supported nids */ | |
| 283 *nids = test_cipher_nids; | |
| 284 return test_cipher_nids_number; | |
| 285 } | |
| 286 /* We are being asked for a specific cipher */ | |
| 287 if(nid == NID_rc4) | |
| 288 *cipher = &test_r4_cipher; | |
| 289 else if(nid == NID_rc4_40) | |
| 290 *cipher = &test_r4_40_cipher; | |
| 291 else | |
| 292 { | |
| 293 #ifdef TEST_ENG_OPENSSL_RC4_OTHERS | |
| 294 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) returning NULL for " | |
| 295 "nid %d\n", nid); | |
| 296 #endif | |
| 297 *cipher = NULL; | |
| 298 return 0; | |
| 299 } | |
| 300 return 1; | |
| 301 } | |
| 302 #endif | |
| 303 | |
| 304 #ifdef TEST_ENG_OPENSSL_SHA | |
| 305 /* Much the same sort of comment as for TEST_ENG_OPENSSL_RC4 */ | |
| 306 #include <openssl/sha.h> | |
| 307 static int test_digest_nids[] = {NID_sha1}; | |
| 308 static int test_digest_nids_number = 1; | |
| 309 static int test_sha1_init(EVP_MD_CTX *ctx) | |
| 310 { | |
| 311 #ifdef TEST_ENG_OPENSSL_SHA_P_INIT | |
| 312 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_init() called\n"); | |
| 313 #endif | |
| 314 return SHA1_Init(ctx->md_data); | |
| 315 } | |
| 316 static int test_sha1_update(EVP_MD_CTX *ctx,const void *data,size_t count) | |
| 317 { | |
| 318 #ifdef TEST_ENG_OPENSSL_SHA_P_UPDATE | |
| 319 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_update() called\n"); | |
| 320 #endif | |
| 321 return SHA1_Update(ctx->md_data,data,count); | |
| 322 } | |
| 323 static int test_sha1_final(EVP_MD_CTX *ctx,unsigned char *md) | |
| 324 { | |
| 325 #ifdef TEST_ENG_OPENSSL_SHA_P_FINAL | |
| 326 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_final() called\n"); | |
| 327 #endif | |
| 328 return SHA1_Final(md,ctx->md_data); | |
| 329 } | |
| 330 static const EVP_MD test_sha_md= | |
| 331 { | |
| 332 NID_sha1, | |
| 333 NID_sha1WithRSAEncryption, | |
| 334 SHA_DIGEST_LENGTH, | |
| 335 0, | |
| 336 test_sha1_init, | |
| 337 test_sha1_update, | |
| 338 test_sha1_final, | |
| 339 NULL, | |
| 340 NULL, | |
| 341 EVP_PKEY_RSA_method, | |
| 342 SHA_CBLOCK, | |
| 343 sizeof(EVP_MD *)+sizeof(SHA_CTX), | |
| 344 }; | |
| 345 static int openssl_digests(ENGINE *e, const EVP_MD **digest, | |
| 346 const int **nids, int nid) | |
| 347 { | |
| 348 if(!digest) | |
| 349 { | |
| 350 /* We are returning a list of supported nids */ | |
| 351 *nids = test_digest_nids; | |
| 352 return test_digest_nids_number; | |
| 353 } | |
| 354 /* We are being asked for a specific digest */ | |
| 355 if(nid == NID_sha1) | |
| 356 *digest = &test_sha_md; | |
| 357 else | |
| 358 { | |
| 359 #ifdef TEST_ENG_OPENSSL_SHA_OTHERS | |
| 360 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) returning NULL for " | |
| 361 "nid %d\n", nid); | |
| 362 #endif | |
| 363 *digest = NULL; | |
| 364 return 0; | |
| 365 } | |
| 366 return 1; | |
| 367 } | |
| 368 #endif | |
| 369 | |
| 370 #ifdef TEST_ENG_OPENSSL_PKEY | |
| 371 static EVP_PKEY *openssl_load_privkey(ENGINE *eng, const char *key_id, | |
| 372 UI_METHOD *ui_method, void *callback_data) | |
| 373 { | |
| 374 BIO *in; | |
| 375 EVP_PKEY *key; | |
| 376 fprintf(stderr, "(TEST_ENG_OPENSSL_PKEY)Loading Private key %s\n", key_i
d); | |
| 377 in = BIO_new_file(key_id, "r"); | |
| 378 if (!in) | |
| 379 return NULL; | |
| 380 key = PEM_read_bio_PrivateKey(in, NULL, 0, NULL); | |
| 381 BIO_free(in); | |
| 382 return key; | |
| 383 } | |
| 384 #endif | |
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