diff options
Diffstat (limited to 'src/lib/libcrypto/rsa/rsa_lib.c')
| -rw-r--r-- | src/lib/libcrypto/rsa/rsa_lib.c | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/src/lib/libcrypto/rsa/rsa_lib.c b/src/lib/libcrypto/rsa/rsa_lib.c new file mode 100644 index 0000000000..c95ceafc82 --- /dev/null +++ b/src/lib/libcrypto/rsa/rsa_lib.c | |||
| @@ -0,0 +1,333 @@ | |||
| 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 | } | ||
