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| 1 /* crypto/rsa/rsa_lib.c */ | |
| 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * This package is an SSL implementation written | |
| 6 * by Eric Young (eay@cryptsoft.com). | |
| 7 * The implementation was written so as to conform with Netscapes SSL. | |
| 8 * | |
| 9 * This library is free for commercial and non-commercial use as long as | |
| 10 * the following conditions are aheared to. The following conditions | |
| 11 * apply to all code found in this distribution, be it the RC4, RSA, | |
| 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
| 13 * included with this distribution is covered by the same copyright terms | |
| 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
| 15 * | |
| 16 * Copyright remains Eric Young's, and as such any Copyright notices in | |
| 17 * the code are not to be removed. | |
| 18 * If this package is used in a product, Eric Young should be given attribution | |
| 19 * as the author of the parts of the library used. | |
| 20 * This can be in the form of a textual message at program startup or | |
| 21 * in documentation (online or textual) provided with the package. | |
| 22 * | |
| 23 * Redistribution and use in source and binary forms, with or without | |
| 24 * modification, are permitted provided that the following conditions | |
| 25 * are met: | |
| 26 * 1. Redistributions of source code must retain the copyright | |
| 27 * notice, this list of conditions and the following disclaimer. | |
| 28 * 2. Redistributions in binary form must reproduce the above copyright | |
| 29 * notice, this list of conditions and the following disclaimer in the | |
| 30 * documentation and/or other materials provided with the distribution. | |
| 31 * 3. All advertising materials mentioning features or use of this software | |
| 32 * must display the following acknowledgement: | |
| 33 * "This product includes cryptographic software written by | |
| 34 * Eric Young (eay@cryptsoft.com)" | |
| 35 * The word 'cryptographic' can be left out if the rouines from the library | |
| 36 * being used are not cryptographic related :-). | |
| 37 * 4. If you include any Windows specific code (or a derivative thereof) from | |
| 38 * the apps directory (application code) you must include an acknowledgement: | |
| 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
| 40 * | |
| 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
| 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 51 * SUCH DAMAGE. | |
| 52 * | |
| 53 * The licence and distribution terms for any publically available version or | |
| 54 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
| 55 * copied and put under another distribution licence | |
| 56 * [including the GNU Public Licence.] | |
| 57 */ | |
| 58 | |
| 59 #include <stdio.h> | |
| 60 #include <openssl/crypto.h> | |
| 61 #include "cryptlib.h" | |
| 62 #include <openssl/lhash.h> | |
| 63 #include <openssl/bn.h> | |
| 64 #include <openssl/rsa.h> | |
| 65 #include <openssl/rand.h> | |
| 66 #ifndef OPENSSL_NO_ENGINE | |
| 67 #include <openssl/engine.h> | |
| 68 #endif | |
| 69 | |
| 70 #ifdef OPENSSL_FIPS | |
| 71 #include <openssl/fips.h> | |
| 72 #endif | |
| 73 | |
| 74 const char RSA_version[]="RSA" OPENSSL_VERSION_PTEXT; | |
| 75 | |
| 76 static const RSA_METHOD *default_RSA_meth=NULL; | |
| 77 | |
| 78 RSA *RSA_new(void) | |
| 79 { | |
| 80 RSA *r=RSA_new_method(NULL); | |
| 81 | |
| 82 return r; | |
| 83 } | |
| 84 | |
| 85 void RSA_set_default_method(const RSA_METHOD *meth) | |
| 86 { | |
| 87 default_RSA_meth = meth; | |
| 88 } | |
| 89 | |
| 90 const RSA_METHOD *RSA_get_default_method(void) | |
| 91 { | |
| 92 if (default_RSA_meth == NULL) | |
| 93 { | |
| 94 #ifdef OPENSSL_FIPS | |
| 95 if (FIPS_mode()) | |
| 96 return FIPS_rsa_pkcs1_ssleay(); | |
| 97 else | |
| 98 return RSA_PKCS1_SSLeay(); | |
| 99 #else | |
| 100 #ifdef RSA_NULL | |
| 101 default_RSA_meth=RSA_null_method(); | |
| 102 #else | |
| 103 default_RSA_meth=RSA_PKCS1_SSLeay(); | |
| 104 #endif | |
| 105 #endif | |
| 106 } | |
| 107 | |
| 108 return default_RSA_meth; | |
| 109 } | |
| 110 | |
| 111 const RSA_METHOD *RSA_get_method(const RSA *rsa) | |
| 112 { | |
| 113 return rsa->meth; | |
| 114 } | |
| 115 | |
| 116 int RSA_set_method(RSA *rsa, const RSA_METHOD *meth) | |
| 117 { | |
| 118 /* NB: The caller is specifically setting a method, so it's not up to us | |
| 119 * to deal with which ENGINE it comes from. */ | |
| 120 const RSA_METHOD *mtmp; | |
| 121 mtmp = rsa->meth; | |
| 122 if (mtmp->finish) mtmp->finish(rsa); | |
| 123 #ifndef OPENSSL_NO_ENGINE | |
| 124 if (rsa->engine) | |
| 125 { | |
| 126 ENGINE_finish(rsa->engine); | |
| 127 rsa->engine = NULL; | |
| 128 } | |
| 129 #endif | |
| 130 rsa->meth = meth; | |
| 131 if (meth->init) meth->init(rsa); | |
| 132 return 1; | |
| 133 } | |
| 134 | |
| 135 RSA *RSA_new_method(ENGINE *engine) | |
| 136 { | |
| 137 RSA *ret; | |
| 138 | |
| 139 ret=(RSA *)OPENSSL_malloc(sizeof(RSA)); | |
| 140 if (ret == NULL) | |
| 141 { | |
| 142 RSAerr(RSA_F_RSA_NEW_METHOD,ERR_R_MALLOC_FAILURE); | |
| 143 return NULL; | |
| 144 } | |
| 145 | |
| 146 ret->meth = RSA_get_default_method(); | |
| 147 #ifndef OPENSSL_NO_ENGINE | |
| 148 if (engine) | |
| 149 { | |
| 150 if (!ENGINE_init(engine)) | |
| 151 { | |
| 152 RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB); | |
| 153 OPENSSL_free(ret); | |
| 154 return NULL; | |
| 155 } | |
| 156 ret->engine = engine; | |
| 157 } | |
| 158 else | |
| 159 ret->engine = ENGINE_get_default_RSA(); | |
| 160 if(ret->engine) | |
| 161 { | |
| 162 ret->meth = ENGINE_get_RSA(ret->engine); | |
| 163 if(!ret->meth) | |
| 164 { | |
| 165 RSAerr(RSA_F_RSA_NEW_METHOD, | |
| 166 ERR_R_ENGINE_LIB); | |
| 167 ENGINE_finish(ret->engine); | |
| 168 OPENSSL_free(ret); | |
| 169 return NULL; | |
| 170 } | |
| 171 } | |
| 172 #endif | |
| 173 | |
| 174 ret->pad=0; | |
| 175 ret->version=0; | |
| 176 ret->n=NULL; | |
| 177 ret->e=NULL; | |
| 178 ret->d=NULL; | |
| 179 ret->p=NULL; | |
| 180 ret->q=NULL; | |
| 181 ret->dmp1=NULL; | |
| 182 ret->dmq1=NULL; | |
| 183 ret->iqmp=NULL; | |
| 184 ret->references=1; | |
| 185 ret->_method_mod_n=NULL; | |
| 186 ret->_method_mod_p=NULL; | |
| 187 ret->_method_mod_q=NULL; | |
| 188 ret->blinding=NULL; | |
| 189 ret->mt_blinding=NULL; | |
| 190 ret->bignum_data=NULL; | |
| 191 ret->flags=ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW; | |
| 192 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) | |
| 193 { | |
| 194 #ifndef OPENSSL_NO_ENGINE | |
| 195 if (ret->engine) | |
| 196 ENGINE_finish(ret->engine); | |
| 197 #endif | |
| 198 OPENSSL_free(ret); | |
| 199 return(NULL); | |
| 200 } | |
| 201 | |
| 202 if ((ret->meth->init != NULL) && !ret->meth->init(ret)) | |
| 203 { | |
| 204 #ifndef OPENSSL_NO_ENGINE | |
| 205 if (ret->engine) | |
| 206 ENGINE_finish(ret->engine); | |
| 207 #endif | |
| 208 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data); | |
| 209 OPENSSL_free(ret); | |
| 210 ret=NULL; | |
| 211 } | |
| 212 return(ret); | |
| 213 } | |
| 214 | |
| 215 void RSA_free(RSA *r) | |
| 216 { | |
| 217 int i; | |
| 218 | |
| 219 if (r == NULL) return; | |
| 220 | |
| 221 i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_RSA); | |
| 222 #ifdef REF_PRINT | |
| 223 REF_PRINT("RSA",r); | |
| 224 #endif | |
| 225 if (i > 0) return; | |
| 226 #ifdef REF_CHECK | |
| 227 if (i < 0) | |
| 228 { | |
| 229 fprintf(stderr,"RSA_free, bad reference count\n"); | |
| 230 abort(); | |
| 231 } | |
| 232 #endif | |
| 233 | |
| 234 if (r->meth->finish) | |
| 235 r->meth->finish(r); | |
| 236 #ifndef OPENSSL_NO_ENGINE | |
| 237 if (r->engine) | |
| 238 ENGINE_finish(r->engine); | |
| 239 #endif | |
| 240 | |
| 241 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data); | |
| 242 | |
| 243 if (r->n != NULL) BN_clear_free(r->n); | |
| 244 if (r->e != NULL) BN_clear_free(r->e); | |
| 245 if (r->d != NULL) BN_clear_free(r->d); | |
| 246 if (r->p != NULL) BN_clear_free(r->p); | |
| 247 if (r->q != NULL) BN_clear_free(r->q); | |
| 248 if (r->dmp1 != NULL) BN_clear_free(r->dmp1); | |
| 249 if (r->dmq1 != NULL) BN_clear_free(r->dmq1); | |
| 250 if (r->iqmp != NULL) BN_clear_free(r->iqmp); | |
| 251 if (r->blinding != NULL) BN_BLINDING_free(r->blinding); | |
| 252 if (r->mt_blinding != NULL) BN_BLINDING_free(r->mt_blinding); | |
| 253 if (r->bignum_data != NULL) OPENSSL_free_locked(r->bignum_data); | |
| 254 OPENSSL_free(r); | |
| 255 } | |
| 256 | |
| 257 int RSA_up_ref(RSA *r) | |
| 258 { | |
| 259 int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_RSA); | |
| 260 #ifdef REF_PRINT | |
| 261 REF_PRINT("RSA",r); | |
| 262 #endif | |
| 263 #ifdef REF_CHECK | |
| 264 if (i < 2) | |
| 265 { | |
| 266 fprintf(stderr, "RSA_up_ref, bad reference count\n"); | |
| 267 abort(); | |
| 268 } | |
| 269 #endif | |
| 270 return ((i > 1) ? 1 : 0); | |
| 271 } | |
| 272 | |
| 273 int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, | |
| 274 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) | |
| 275 { | |
| 276 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, argl, argp, | |
| 277 new_func, dup_func, free_func); | |
| 278 } | |
| 279 | |
| 280 int RSA_set_ex_data(RSA *r, int idx, void *arg) | |
| 281 { | |
| 282 return(CRYPTO_set_ex_data(&r->ex_data,idx,arg)); | |
| 283 } | |
| 284 | |
| 285 void *RSA_get_ex_data(const RSA *r, int idx) | |
| 286 { | |
| 287 return(CRYPTO_get_ex_data(&r->ex_data,idx)); | |
| 288 } | |
| 289 | |
| 290 int RSA_memory_lock(RSA *r) | |
| 291 { | |
| 292 int i,j,k,off; | |
| 293 char *p; | |
| 294 BIGNUM *bn,**t[6],*b; | |
| 295 BN_ULONG *ul; | |
| 296 | |
| 297 if (r->d == NULL) return(1); | |
| 298 t[0]= &r->d; | |
| 299 t[1]= &r->p; | |
| 300 t[2]= &r->q; | |
| 301 t[3]= &r->dmp1; | |
| 302 t[4]= &r->dmq1; | |
| 303 t[5]= &r->iqmp; | |
| 304 k=sizeof(BIGNUM)*6; | |
| 305 off=k/sizeof(BN_ULONG)+1; | |
| 306 j=1; | |
| 307 for (i=0; i<6; i++) | |
| 308 j+= (*t[i])->top; | |
| 309 if ((p=OPENSSL_malloc_locked((off+j)*sizeof(BN_ULONG))) == NULL) | |
| 310 { | |
| 311 RSAerr(RSA_F_RSA_MEMORY_LOCK,ERR_R_MALLOC_FAILURE); | |
| 312 return(0); | |
| 313 } | |
| 314 bn=(BIGNUM *)p; | |
| 315 ul=(BN_ULONG *)&(p[off]); | |
| 316 for (i=0; i<6; i++) | |
| 317 { | |
| 318 b= *(t[i]); | |
| 319 *(t[i])= &(bn[i]); | |
| 320 memcpy((char *)&(bn[i]),(char *)b,sizeof(BIGNUM)); | |
| 321 bn[i].flags=BN_FLG_STATIC_DATA; | |
| 322 bn[i].d=ul; | |
| 323 memcpy((char *)ul,b->d,sizeof(BN_ULONG)*b->top); | |
| 324 ul+=b->top; | |
| 325 BN_clear_free(b); | |
| 326 } | |
| 327 | |
| 328 /* I should fix this so it can still be done */ | |
| 329 r->flags&= ~(RSA_FLAG_CACHE_PRIVATE|RSA_FLAG_CACHE_PUBLIC); | |
| 330 | |
| 331 r->bignum_data=p; | |
| 332 return(1); | |
| 333 } | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master