1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 2 * All rights reserved. 3 * 4 * This package is an SSL implementation written 5 * by Eric Young (eay@cryptsoft.com). 6 * The implementation was written so as to conform with Netscapes SSL. 7 * 8 * This library is free for commercial and non-commercial use as long as 9 * the following conditions are aheared to. The following conditions 10 * apply to all code found in this distribution, be it the RC4, RSA, 11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 12 * included with this distribution is covered by the same copyright terms 13 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 14 * 15 * Copyright remains Eric Young's, and as such any Copyright notices in 16 * the code are not to be removed. 17 * If this package is used in a product, Eric Young should be given attribution 18 * as the author of the parts of the library used. 19 * This can be in the form of a textual message at program startup or 20 * in documentation (online or textual) provided with the package. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. All advertising materials mentioning features or use of this software 31 * must display the following acknowledgement: 32 * "This product includes cryptographic software written by 33 * Eric Young (eay@cryptsoft.com)" 34 * The word 'cryptographic' can be left out if the rouines from the library 35 * being used are not cryptographic related :-). 36 * 4. If you include any Windows specific code (or a derivative thereof) from 37 * the apps directory (application code) you must include an acknowledgement: 38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 50 * SUCH DAMAGE. 51 * 52 * The licence and distribution terms for any publically available version or 53 * derivative of this code cannot be changed. i.e. this code cannot simply be 54 * copied and put under another distribution licence 55 * [including the GNU Public Licence.] */ 56 57 #ifndef OPENSSL_HEADER_RSA_H 58 #define OPENSSL_HEADER_RSA_H 59 60 #include <openssl/base.h> 61 62 #include <openssl/engine.h> 63 #include <openssl/ex_data.h> 64 #include <openssl/thread.h> 65 66 #if defined(__cplusplus) 67 extern "C" { 68 #endif 69 70 71 /* rsa.h contains functions for handling encryption and signature using RSA. */ 72 73 74 /* Allocation and destruction. */ 75 76 /* RSA_new returns a new, empty RSA object or NULL on error. */ 77 OPENSSL_EXPORT RSA *RSA_new(void); 78 79 /* RSA_new_method acts the same as |RSA_new| but takes an explicit |ENGINE|. */ 80 OPENSSL_EXPORT RSA *RSA_new_method(const ENGINE *engine); 81 82 /* RSA_free decrements the reference count of |rsa| and frees it if the 83 * reference count drops to zero. */ 84 OPENSSL_EXPORT void RSA_free(RSA *rsa); 85 86 /* RSA_up_ref increments the reference count of |rsa|. */ 87 OPENSSL_EXPORT int RSA_up_ref(RSA *rsa); 88 89 90 /* Key generation. */ 91 92 /* RSA_generate_key_ex generates a new RSA key where the modulus has size 93 * |bits| and the public exponent is |e|. If unsure, |RSA_F4| is a good value 94 * for |e|. If |cb| is not NULL then it is called during the key generation 95 * process. In addition to the calls documented for |BN_generate_prime_ex|, it 96 * is called with event=2 when the n'th prime is rejected as unsuitable and 97 * with event=3 when a suitable value for |p| is found. 98 * 99 * It returns one on success or zero on error. */ 100 OPENSSL_EXPORT int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, 101 BN_GENCB *cb); 102 103 104 /* Encryption / Decryption */ 105 106 /* Padding types for encryption. */ 107 #define RSA_PKCS1_PADDING 1 108 #define RSA_NO_PADDING 3 109 #define RSA_PKCS1_OAEP_PADDING 4 110 /* RSA_PKCS1_PSS_PADDING can only be used via the EVP interface. */ 111 #define RSA_PKCS1_PSS_PADDING 6 112 113 /* RSA_encrypt encrypts |in_len| bytes from |in| to the public key from |rsa| 114 * and writes, at most, |max_out| bytes of encrypted data to |out|. The 115 * |max_out| argument must be, at least, |RSA_size| in order to ensure success. 116 * 117 * It returns 1 on success or zero on error. 118 * 119 * The |padding| argument must be one of the |RSA_*_PADDING| values. If in 120 * doubt, |RSA_PKCS1_PADDING| is the most common but |RSA_PKCS1_OAEP_PADDING| 121 * is the most secure. */ 122 OPENSSL_EXPORT int RSA_encrypt(RSA *rsa, size_t *out_len, uint8_t *out, 123 size_t max_out, const uint8_t *in, size_t in_len, 124 int padding); 125 126 /* RSA_decrypt decrypts |in_len| bytes from |in| with the private key from 127 * |rsa| and writes, at most, |max_out| bytes of plaintext to |out|. The 128 * |max_out| argument must be, at least, |RSA_size| in order to ensure success. 129 * 130 * It returns 1 on success or zero on error. 131 * 132 * The |padding| argument must be one of the |RSA_*_PADDING| values. If in 133 * doubt, |RSA_PKCS1_PADDING| is the most common but |RSA_PKCS1_OAEP_PADDING| 134 * is the most secure. */ 135 OPENSSL_EXPORT int RSA_decrypt(RSA *rsa, size_t *out_len, uint8_t *out, 136 size_t max_out, const uint8_t *in, size_t in_len, 137 int padding); 138 139 /* RSA_public_encrypt encrypts |flen| bytes from |from| to the public key in 140 * |rsa| and writes the encrypted data to |to|. The |to| buffer must have at 141 * least |RSA_size| bytes of space. It returns the number of bytes written, or 142 * -1 on error. The |padding| argument must be one of the |RSA_*_PADDING| 143 * values. If in doubt, |RSA_PKCS1_PADDING| is the most common but 144 * |RSA_PKCS1_OAEP_PADDING| is the most secure. 145 * 146 * WARNING: this function is dangerous because it breaks the usual return value 147 * convention. Use |RSA_encrypt| instead. */ 148 OPENSSL_EXPORT int RSA_public_encrypt(int flen, const uint8_t *from, 149 uint8_t *to, RSA *rsa, int padding); 150 151 /* RSA_private_decrypt decrypts |flen| bytes from |from| with the public key in 152 * |rsa| and writes the plaintext to |to|. The |to| buffer must have at 153 * least |RSA_size| bytes of space. It returns the number of bytes written, or 154 * -1 on error. The |padding| argument must be one of the |RSA_*_PADDING| 155 * values. If in doubt, |RSA_PKCS1_PADDING| is the most common but 156 * |RSA_PKCS1_OAEP_PADDING| is the most secure. 157 * 158 * WARNING: this function is dangerous because it breaks the usual return value 159 * convention. Use |RSA_decrypt| instead. */ 160 OPENSSL_EXPORT int RSA_private_decrypt(int flen, const uint8_t *from, 161 uint8_t *to, RSA *rsa, int padding); 162 163 /* RSA_message_index_PKCS1_type_2 performs the first step of a PKCS #1 padding 164 * check for decryption. If the |from_len| bytes pointed to at |from| are a 165 * valid PKCS #1 message, it returns one and sets |*out_index| to the start of 166 * the unpadded message. The unpadded message is a suffix of the input and has 167 * length |from_len - *out_index|. Otherwise, it returns zero and sets 168 * |*out_index| to zero. This function runs in time independent of the input 169 * data and is intended to be used directly to avoid Bleichenbacher's attack. 170 * 171 * WARNING: This function behaves differently from the usual OpenSSL convention 172 * in that it does NOT put an error on the queue in the error case. */ 173 OPENSSL_EXPORT int RSA_message_index_PKCS1_type_2(const uint8_t *from, 174 size_t from_len, 175 size_t *out_index); 176 177 178 /* Signing / Verification */ 179 180 /* RSA_sign signs |in_len| bytes of digest from |in| with |rsa| and writes, at 181 * most, |RSA_size(rsa)| bytes to |out|. On successful return, the actual 182 * number of bytes written is written to |*out_len|. 183 * 184 * The |hash_nid| argument identifies the hash function used to calculate |in| 185 * and is embedded in the resulting signature. For example, it might be 186 * |NID_sha256|. 187 * 188 * It returns 1 on success and zero on error. */ 189 OPENSSL_EXPORT int RSA_sign(int hash_nid, const uint8_t *in, 190 unsigned int in_len, uint8_t *out, 191 unsigned int *out_len, RSA *rsa); 192 193 /* RSA_sign_raw signs |in_len| bytes from |in| with the public key from |rsa| 194 * and writes, at most, |max_out| bytes of signature data to |out|. The 195 * |max_out| argument must be, at least, |RSA_size| in order to ensure success. 196 * 197 * It returns 1 on success or zero on error. 198 * 199 * The |padding| argument must be one of the |RSA_*_PADDING| values. If in 200 * doubt, |RSA_PKCS1_PADDING| is the most common. */ 201 OPENSSL_EXPORT int RSA_sign_raw(RSA *rsa, size_t *out_len, uint8_t *out, 202 size_t max_out, const uint8_t *in, 203 size_t in_len, int padding); 204 205 /* RSA_verify verifies that |sig_len| bytes from |sig| are a valid, PKCS#1 206 * signature of |msg_len| bytes at |msg| by |rsa|. 207 * 208 * The |hash_nid| argument identifies the hash function used to calculate |in| 209 * and is embedded in the resulting signature in order to prevent hash 210 * confusion attacks. For example, it might be |NID_sha256|. 211 * 212 * It returns one if the signature is valid and zero otherwise. 213 * 214 * WARNING: this differs from the original, OpenSSL function which additionally 215 * returned -1 on error. */ 216 OPENSSL_EXPORT int RSA_verify(int hash_nid, const uint8_t *msg, size_t msg_len, 217 const uint8_t *sig, size_t sig_len, RSA *rsa); 218 219 /* RSA_verify_raw verifies |in_len| bytes of signature from |in| using the 220 * public key from |rsa| and writes, at most, |max_out| bytes of plaintext to 221 * |out|. The |max_out| argument must be, at least, |RSA_size| in order to 222 * ensure success. 223 * 224 * It returns 1 on success or zero on error. 225 * 226 * The |padding| argument must be one of the |RSA_*_PADDING| values. If in 227 * doubt, |RSA_PKCS1_PADDING| is the most common. */ 228 OPENSSL_EXPORT int RSA_verify_raw(RSA *rsa, size_t *out_len, uint8_t *out, 229 size_t max_out, const uint8_t *in, 230 size_t in_len, int padding); 231 232 /* RSA_private_encrypt encrypts |flen| bytes from |from| with the private key in 233 * |rsa| and writes the encrypted data to |to|. The |to| buffer must have at 234 * least |RSA_size| bytes of space. It returns the number of bytes written, or 235 * -1 on error. The |padding| argument must be one of the |RSA_*_PADDING| 236 * values. If in doubt, |RSA_PKCS1_PADDING| is the most common. 237 * 238 * WARNING: this function is dangerous because it breaks the usual return value 239 * convention. Use |RSA_sign_raw| instead. */ 240 OPENSSL_EXPORT int RSA_private_encrypt(int flen, const uint8_t *from, 241 uint8_t *to, RSA *rsa, int padding); 242 243 /* RSA_private_encrypt verifies |flen| bytes of signature from |from| using the 244 * public key in |rsa| and writes the plaintext to |to|. The |to| buffer must 245 * have at least |RSA_size| bytes of space. It returns the number of bytes 246 * written, or -1 on error. The |padding| argument must be one of the 247 * |RSA_*_PADDING| values. If in doubt, |RSA_PKCS1_PADDING| is the most common. 248 * 249 * WARNING: this function is dangerous because it breaks the usual return value 250 * convention. Use |RSA_verify_raw| instead. */ 251 OPENSSL_EXPORT int RSA_public_decrypt(int flen, const uint8_t *from, 252 uint8_t *to, RSA *rsa, int padding); 253 254 255 /* Utility functions. */ 256 257 /* RSA_size returns the number of bytes in the modulus, which is also the size 258 * of a signature or encrypted value using |rsa|. */ 259 OPENSSL_EXPORT unsigned RSA_size(const RSA *rsa); 260 261 /* RSA_is_opaque returns one if |rsa| is opaque and doesn't expose its key 262 * material. Otherwise it returns zero. */ 263 OPENSSL_EXPORT int RSA_is_opaque(const RSA *rsa); 264 265 /* RSA_supports_digest returns one if |rsa| supports signing digests 266 * of type |md|. Otherwise it returns zero. */ 267 OPENSSL_EXPORT int RSA_supports_digest(const RSA *rsa, const EVP_MD *md); 268 269 /* RSAPublicKey_dup allocates a fresh |RSA| and copies the private key from 270 * |rsa| into it. It returns the fresh |RSA| object, or NULL on error. */ 271 OPENSSL_EXPORT RSA *RSAPublicKey_dup(const RSA *rsa); 272 273 /* RSAPrivateKey_dup allocates a fresh |RSA| and copies the private key from 274 * |rsa| into it. It returns the fresh |RSA| object, or NULL on error. */ 275 OPENSSL_EXPORT RSA *RSAPrivateKey_dup(const RSA *rsa); 276 277 /* RSA_check_key performs basic validatity tests on |rsa|. It returns one if 278 * they pass and zero otherwise. Opaque keys and public keys always pass. If it 279 * returns zero then a more detailed error is available on the error queue. */ 280 OPENSSL_EXPORT int RSA_check_key(const RSA *rsa); 281 282 /* RSA_recover_crt_params uses |rsa->n|, |rsa->d| and |rsa->e| in order to 283 * calculate the two primes used and thus the precomputed, CRT values. These 284 * values are set in the |p|, |q|, |dmp1|, |dmq1| and |iqmp| members of |rsa|, 285 * which must be |NULL| on entry. It returns one on success and zero 286 * otherwise. */ 287 OPENSSL_EXPORT int RSA_recover_crt_params(RSA *rsa); 288 289 /* RSA_verify_PKCS1_PSS_mgf1 verifies that |EM| is a correct PSS padding of 290 * |mHash|, where |mHash| is a digest produced by |Hash|. |EM| must point to 291 * exactly |RSA_size(rsa)| bytes of data. The |mgf1Hash| argument specifies the 292 * hash function for generating the mask. If NULL, |Hash| is used. The |sLen| 293 * argument specifies the expected salt length in bytes. If |sLen| is -1 then 294 * the salt length is the same as the hash length. If -2, then the salt length 295 * is maximal and is taken from the size of |EM|. 296 * 297 * It returns one on success or zero on error. */ 298 OPENSSL_EXPORT int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const uint8_t *mHash, 299 const EVP_MD *Hash, 300 const EVP_MD *mgf1Hash, 301 const uint8_t *EM, int sLen); 302 303 /* RSA_padding_add_PKCS1_PSS_mgf1 writes a PSS padding of |mHash| to |EM|, 304 * where |mHash| is a digest produced by |Hash|. |RSA_size(rsa)| bytes of 305 * output will be written to |EM|. The |mgf1Hash| argument specifies the hash 306 * function for generating the mask. If NULL, |Hash| is used. The |sLen| 307 * argument specifies the expected salt length in bytes. If |sLen| is -1 then 308 * the salt length is the same as the hash length. If -2, then the salt length 309 * is maximal given the space in |EM|. 310 * 311 * It returns one on success or zero on error. */ 312 OPENSSL_EXPORT int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, uint8_t *EM, 313 const uint8_t *mHash, 314 const EVP_MD *Hash, 315 const EVP_MD *mgf1Hash, 316 int sLen); 317 318 319 /* ASN.1 functions. */ 320 321 /* d2i_RSAPublicKey parses an ASN.1, DER-encoded, RSA public key from |len| 322 * bytes at |*inp|. If |out| is not NULL then, on exit, a pointer to the result 323 * is in |*out|. If |*out| is already non-NULL on entry then the result is 324 * written directly into |*out|, otherwise a fresh |RSA| is allocated. On 325 * successful exit, |*inp| is advanced past the DER structure. It returns the 326 * result or NULL on error. */ 327 OPENSSL_EXPORT RSA *d2i_RSAPublicKey(RSA **out, const uint8_t **inp, long len); 328 329 /* i2d_RSAPublicKey marshals |in| to an ASN.1, DER structure. If |outp| is not 330 * NULL then the result is written to |*outp| and |*outp| is advanced just past 331 * the output. It returns the number of bytes in the result, whether written or 332 * not, or a negative value on error. */ 333 OPENSSL_EXPORT int i2d_RSAPublicKey(const RSA *in, uint8_t **outp); 334 335 /* d2i_RSAPrivateKey parses an ASN.1, DER-encoded, RSA private key from |len| 336 * bytes at |*inp|. If |out| is not NULL then, on exit, a pointer to the result 337 * is in |*out|. If |*out| is already non-NULL on entry then the result is 338 * written directly into |*out|, otherwise a fresh |RSA| is allocated. On 339 * successful exit, |*inp| is advanced past the DER structure. It returns the 340 * result or NULL on error. */ 341 OPENSSL_EXPORT RSA *d2i_RSAPrivateKey(RSA **out, const uint8_t **inp, long len); 342 343 /* i2d_RSAPrivateKey marshals |in| to an ASN.1, DER structure. If |outp| is not 344 * NULL then the result is written to |*outp| and |*outp| is advanced just past 345 * the output. It returns the number of bytes in the result, whether written or 346 * not, or a negative value on error. */ 347 OPENSSL_EXPORT int i2d_RSAPrivateKey(const RSA *in, uint8_t **outp); 348 349 350 /* ex_data functions. 351 * 352 * See |ex_data.h| for details. */ 353 354 OPENSSL_EXPORT int RSA_get_ex_new_index(long argl, void *argp, 355 CRYPTO_EX_new *new_func, 356 CRYPTO_EX_dup *dup_func, 357 CRYPTO_EX_free *free_func); 358 OPENSSL_EXPORT int RSA_set_ex_data(RSA *r, int idx, void *arg); 359 OPENSSL_EXPORT void *RSA_get_ex_data(const RSA *r, int idx); 360 361 /* RSA_FLAG_OPAQUE specifies that this RSA_METHOD does not expose its key 362 * material. This may be set if, for instance, it is wrapping some other crypto 363 * API, like a platform key store. */ 364 #define RSA_FLAG_OPAQUE 1 365 366 /* RSA_FLAG_CACHE_PUBLIC causes a precomputed Montgomery context to be created, 367 * on demand, for the public key operations. */ 368 #define RSA_FLAG_CACHE_PUBLIC 2 369 370 /* RSA_FLAG_CACHE_PRIVATE causes a precomputed Montgomery context to be 371 * created, on demand, for the private key operations. */ 372 #define RSA_FLAG_CACHE_PRIVATE 4 373 374 /* RSA_FLAG_NO_BLINDING disables blinding of private operations. */ 375 #define RSA_FLAG_NO_BLINDING 8 376 377 /* RSA_FLAG_EXT_PKEY means that private key operations will be handled by 378 * |mod_exp| and that they do not depend on the private key components being 379 * present: for example a key stored in external hardware. */ 380 #define RSA_FLAG_EXT_PKEY 0x20 381 382 /* RSA_FLAG_SIGN_VER causes the |sign| and |verify| functions of |rsa_meth_st| 383 * to be called when set. */ 384 #define RSA_FLAG_SIGN_VER 0x40 385 386 387 /* RSA public exponent values. */ 388 389 #define RSA_3 0x3 390 #define RSA_F4 0x10001 391 392 393 /* Deprecated functions. */ 394 395 /* RSA_blinding_on returns one. */ 396 OPENSSL_EXPORT int RSA_blinding_on(RSA *rsa, BN_CTX *ctx); 397 398 399 struct rsa_meth_st { 400 struct openssl_method_common_st common; 401 402 void *app_data; 403 404 int (*init)(RSA *rsa); 405 int (*finish)(RSA *rsa); 406 407 /* size returns the size of the RSA modulus in bytes. */ 408 size_t (*size)(const RSA *rsa); 409 410 int (*sign)(int type, const uint8_t *m, unsigned int m_length, 411 uint8_t *sigret, unsigned int *siglen, const RSA *rsa); 412 413 int (*verify)(int dtype, const uint8_t *m, unsigned int m_length, 414 const uint8_t *sigbuf, unsigned int siglen, const RSA *rsa); 415 416 417 /* These functions mirror the |RSA_*| functions of the same name. */ 418 int (*encrypt)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out, 419 const uint8_t *in, size_t in_len, int padding); 420 int (*sign_raw)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out, 421 const uint8_t *in, size_t in_len, int padding); 422 423 int (*decrypt)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out, 424 const uint8_t *in, size_t in_len, int padding); 425 int (*verify_raw)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out, 426 const uint8_t *in, size_t in_len, int padding); 427 428 /* private_transform takes a big-endian integer from |in|, calculates the 429 * d'th power of it, modulo the RSA modulus and writes the result as a 430 * big-endian integer to |out|. Both |in| and |out| are |len| bytes long and 431 * |len| is always equal to |RSA_size(rsa)|. If the result of the transform 432 * can be represented in fewer than |len| bytes, then |out| must be zero 433 * padded on the left. 434 * 435 * It returns one on success and zero otherwise. 436 * 437 * RSA decrypt and sign operations will call this, thus an ENGINE might wish 438 * to override it in order to avoid having to implement the padding 439 * functionality demanded by those, higher level, operations. */ 440 int (*private_transform)(RSA *rsa, uint8_t *out, const uint8_t *in, 441 size_t len); 442 443 int (*mod_exp)(BIGNUM *r0, const BIGNUM *I, RSA *rsa, 444 BN_CTX *ctx); /* Can be null */ 445 int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, 446 const BIGNUM *m, BN_CTX *ctx, 447 BN_MONT_CTX *m_ctx); 448 449 int flags; 450 451 int (*keygen)(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb); 452 453 /* supports_digest returns one if |rsa| supports digests of type 454 * |md|. If null, it is assumed that all digests are supported. */ 455 int (*supports_digest)(const RSA *rsa, const EVP_MD *md); 456 }; 457 458 459 /* Private functions. */ 460 461 typedef struct bn_blinding_st BN_BLINDING; 462 463 struct rsa_st { 464 /* version is only used during ASN.1 (de)serialisation. */ 465 long version; 466 RSA_METHOD *meth; 467 468 BIGNUM *n; 469 BIGNUM *e; 470 BIGNUM *d; 471 BIGNUM *p; 472 BIGNUM *q; 473 BIGNUM *dmp1; 474 BIGNUM *dmq1; 475 BIGNUM *iqmp; 476 /* be careful using this if the RSA structure is shared */ 477 CRYPTO_EX_DATA ex_data; 478 CRYPTO_refcount_t references; 479 int flags; 480 481 CRYPTO_MUTEX lock; 482 483 /* Used to cache montgomery values. The creation of these values is protected 484 * by |lock|. */ 485 BN_MONT_CTX *_method_mod_n; 486 BN_MONT_CTX *_method_mod_p; 487 BN_MONT_CTX *_method_mod_q; 488 489 /* num_blindings contains the size of the |blindings| and |blindings_inuse| 490 * arrays. This member and the |blindings_inuse| array are protected by 491 * |lock|. */ 492 unsigned num_blindings; 493 /* blindings is an array of BN_BLINDING structures that can be reserved by a 494 * thread by locking |lock| and changing the corresponding element in 495 * |blindings_inuse| from 0 to 1. */ 496 BN_BLINDING **blindings; 497 unsigned char *blindings_inuse; 498 }; 499 500 501 #if defined(__cplusplus) 502 } /* extern C */ 503 #endif 504 505 #define RSA_F_BN_BLINDING_convert_ex 100 506 #define RSA_F_BN_BLINDING_create_param 101 507 #define RSA_F_BN_BLINDING_invert_ex 102 508 #define RSA_F_BN_BLINDING_new 103 509 #define RSA_F_BN_BLINDING_update 104 510 #define RSA_F_RSA_check_key 105 511 #define RSA_F_RSA_new_method 106 512 #define RSA_F_RSA_padding_add_PKCS1_OAEP_mgf1 107 513 #define RSA_F_RSA_padding_add_PKCS1_PSS_mgf1 108 514 #define RSA_F_RSA_padding_add_PKCS1_type_1 109 515 #define RSA_F_RSA_padding_add_PKCS1_type_2 110 516 #define RSA_F_RSA_padding_add_none 111 517 #define RSA_F_RSA_padding_check_PKCS1_OAEP_mgf1 112 518 #define RSA_F_RSA_padding_check_PKCS1_type_1 113 519 #define RSA_F_RSA_padding_check_PKCS1_type_2 114 520 #define RSA_F_RSA_padding_check_none 115 521 #define RSA_F_RSA_recover_crt_params 116 522 #define RSA_F_RSA_sign 117 523 #define RSA_F_RSA_verify 118 524 #define RSA_F_RSA_verify_PKCS1_PSS_mgf1 119 525 #define RSA_F_decrypt 120 526 #define RSA_F_encrypt 121 527 #define RSA_F_keygen 122 528 #define RSA_F_pkcs1_prefixed_msg 123 529 #define RSA_F_private_transform 124 530 #define RSA_F_rsa_setup_blinding 125 531 #define RSA_F_sign_raw 126 532 #define RSA_F_verify_raw 127 533 #define RSA_R_BAD_E_VALUE 100 534 #define RSA_R_BAD_FIXED_HEADER_DECRYPT 101 535 #define RSA_R_BAD_PAD_BYTE_COUNT 102 536 #define RSA_R_BAD_RSA_PARAMETERS 103 537 #define RSA_R_BAD_SIGNATURE 104 538 #define RSA_R_BLOCK_TYPE_IS_NOT_01 105 539 #define RSA_R_BN_NOT_INITIALIZED 106 540 #define RSA_R_CRT_PARAMS_ALREADY_GIVEN 107 541 #define RSA_R_CRT_VALUES_INCORRECT 108 542 #define RSA_R_DATA_LEN_NOT_EQUAL_TO_MOD_LEN 109 543 #define RSA_R_DATA_TOO_LARGE 110 544 #define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 111 545 #define RSA_R_DATA_TOO_LARGE_FOR_MODULUS 112 546 #define RSA_R_DATA_TOO_SMALL 113 547 #define RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE 114 548 #define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY 115 549 #define RSA_R_D_E_NOT_CONGRUENT_TO_1 116 550 #define RSA_R_EMPTY_PUBLIC_KEY 117 551 #define RSA_R_FIRST_OCTET_INVALID 118 552 #define RSA_R_INCONSISTENT_SET_OF_CRT_VALUES 119 553 #define RSA_R_INTERNAL_ERROR 120 554 #define RSA_R_INVALID_MESSAGE_LENGTH 121 555 #define RSA_R_KEY_SIZE_TOO_SMALL 122 556 #define RSA_R_LAST_OCTET_INVALID 123 557 #define RSA_R_MODULUS_TOO_LARGE 124 558 #define RSA_R_NO_PUBLIC_EXPONENT 125 559 #define RSA_R_NULL_BEFORE_BLOCK_MISSING 126 560 #define RSA_R_N_NOT_EQUAL_P_Q 127 561 #define RSA_R_OAEP_DECODING_ERROR 128 562 #define RSA_R_ONLY_ONE_OF_P_Q_GIVEN 129 563 #define RSA_R_OUTPUT_BUFFER_TOO_SMALL 130 564 #define RSA_R_PADDING_CHECK_FAILED 131 565 #define RSA_R_PKCS_DECODING_ERROR 132 566 #define RSA_R_SLEN_CHECK_FAILED 133 567 #define RSA_R_SLEN_RECOVERY_FAILED 134 568 #define RSA_R_TOO_LONG 135 569 #define RSA_R_TOO_MANY_ITERATIONS 136 570 #define RSA_R_UNKNOWN_ALGORITHM_TYPE 137 571 #define RSA_R_UNKNOWN_PADDING_TYPE 138 572 #define RSA_R_VALUE_MISSING 139 573 #define RSA_R_WRONG_SIGNATURE_LENGTH 140 574 575 #endif /* OPENSSL_HEADER_RSA_H */ 576