include/openssl/rsa.h

   1 /* crypto/rsa/rsa.h */
   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 #ifndef HEADER_RSA_H
  60 # define HEADER_RSA_H
  61
  62 # include <openssl/asn1.h>
  63
  64 # include <openssl/bio.h>
  65 # include <openssl/crypto.h>
  66 # include <openssl/ossl_typ.h>
  67 # ifdef OPENSSL_USE_DEPRECATED
  68 #  include <openssl/bn.h>
  69 # endif
  70
  71 # ifdef OPENSSL_NO_RSA
  72 #  error RSA is disabled.
  73 # endif
  74
  75 #ifdef  __cplusplus
  76 extern "C" {
  77 #endif
  78
  79 /* Declared already in ossl_typ.h */
  80 /* typedef struct rsa_st RSA; */
  81 /* typedef struct rsa_meth_st RSA_METHOD; */
  82
  83 struct rsa_meth_st {
  84     const char *name;
  85     int (*rsa_pub_enc) (int flen, const unsigned char *from,
  86                         unsigned char *to, RSA *rsa, int padding);
  87     int (*rsa_pub_dec) (int flen, const unsigned char *from,
  88                         unsigned char *to, RSA *rsa, int padding);
  89     int (*rsa_priv_enc) (int flen, const unsigned char *from,
  90                          unsigned char *to, RSA *rsa, int padding);
  91     int (*rsa_priv_dec) (int flen, const unsigned char *from,
  92                          unsigned char *to, RSA *rsa, int padding);
  93     /* Can be null */
  94     int (*rsa_mod_exp) (BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx);
  95     /* Can be null */
  96     int (*bn_mod_exp) (BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
  97                        const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
  98     /* called at new */
  99     int (*init) (RSA *rsa);
 100     /* called at free */
 101     int (*finish) (RSA *rsa);
 102     /* RSA_METHOD_FLAG_* things */
 103     int flags;
 104     /* may be needed! */
 105     char *app_data;
 106     /*
 107      * New sign and verify functions: some libraries don't allow arbitrary
 108      * data to be signed/verified: this allows them to be used. Note: for
 109      * this to work the RSA_public_decrypt() and RSA_private_encrypt() should
 110      * *NOT* be used RSA_sign(), RSA_verify() should be used instead. Note:
 111      * for backwards compatibility this functionality is only enabled if the
 112      * RSA_FLAG_SIGN_VER option is set in 'flags'.
 113      */
 114     int (*rsa_sign) (int type,
 115                      const unsigned char *m, unsigned int m_length,
 116                      unsigned char *sigret, unsigned int *siglen,
 117                      const RSA *rsa);
 118     int (*rsa_verify) (int dtype, const unsigned char *m,
 119                        unsigned int m_length, const unsigned char *sigbuf,
 120                        unsigned int siglen, const RSA *rsa);
 121     /*
 122      * If this callback is NULL, the builtin software RSA key-gen will be
 123      * used. This is for behavioural compatibility whilst the code gets
 124      * rewired, but one day it would be nice to assume there are no such
 125      * things as "builtin software" implementations.
 126      */
 127     int (*rsa_keygen) (RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
 128 };
 129
 130 struct rsa_st {
 131     /*
 132      * The first parameter is used to pickup errors where this is passed
 133      * instead of aEVP_PKEY, it is set to 0
 134      */
 135     int pad;
 136     long version;
 137     const RSA_METHOD *meth;
 138     /* functional reference if 'meth' is ENGINE-provided */
 139     ENGINE *engine;
 140     BIGNUM *n;
 141     BIGNUM *e;
 142     BIGNUM *d;
 143     BIGNUM *p;
 144     BIGNUM *q;
 145     BIGNUM *dmp1;
 146     BIGNUM *dmq1;
 147     BIGNUM *iqmp;
 148     /* be careful using this if the RSA structure is shared */
 149     CRYPTO_EX_DATA ex_data;
 150     int references;
 151     int flags;
 152     /* Used to cache montgomery values */
 153     BN_MONT_CTX *_method_mod_n;
 154     BN_MONT_CTX *_method_mod_p;
 155     BN_MONT_CTX *_method_mod_q;
 156     /*
 157      * all BIGNUM values are actually in the following data, if it is not
 158      * NULL
 159      */
 160     char *bignum_data;
 161     BN_BLINDING *blinding;
 162     BN_BLINDING *mt_blinding;
 163 };
 164
 165 # ifndef OPENSSL_RSA_MAX_MODULUS_BITS
 166 #  define OPENSSL_RSA_MAX_MODULUS_BITS   16384
 167 # endif
 168
 169 # define OPENSSL_RSA_FIPS_MIN_MODULUS_BITS 1024
 170
 171 # ifndef OPENSSL_RSA_SMALL_MODULUS_BITS
 172 #  define OPENSSL_RSA_SMALL_MODULUS_BITS 3072
 173 # endif
 174 # ifndef OPENSSL_RSA_MAX_PUBEXP_BITS
 175
 176 /* exponent limit enforced for "large" modulus only */
 177 #  define OPENSSL_RSA_MAX_PUBEXP_BITS    64
 178 # endif
 179
 180 # define RSA_3   0x3L
 181 # define RSA_F4  0x10001L
 182
 183 # define RSA_METHOD_FLAG_NO_CHECK        0x0001/* don't check pub/private
 184                                                 * match */
 185
 186 # define RSA_FLAG_CACHE_PUBLIC           0x0002
 187 # define RSA_FLAG_CACHE_PRIVATE          0x0004
 188 # define RSA_FLAG_BLINDING               0x0008
 189 # define RSA_FLAG_THREAD_SAFE            0x0010
 190 /*
 191  * This flag means the private key operations will be handled by rsa_mod_exp
 192  * and that they do not depend on the private key components being present:
 193  * for example a key stored in external hardware. Without this flag
 194  * bn_mod_exp gets called when private key components are absent.
 195  */
 196 # define RSA_FLAG_EXT_PKEY               0x0020
 197
 198 /*
 199  * This flag in the RSA_METHOD enables the new rsa_sign, rsa_verify
 200  * functions.
 201  */
 202 # define RSA_FLAG_SIGN_VER               0x0040
 203
 204 /*
 205  * new with 0.9.6j and 0.9.7b; the built-in
 206  * RSA implementation now uses blinding by
 207  * default (ignoring RSA_FLAG_BLINDING),
 208  * but other engines might not need it
 209  */
 210 # define RSA_FLAG_NO_BLINDING            0x0080
 211 /*
 212  * new with 0.9.8f; the built-in RSA
 213  * implementation now uses constant time
 214  * operations by default in private key operations,
 215  * e.g., constant time modular exponentiation,
 216  * modular inverse without leaking branches,
 217  * division without leaking branches. This
 218  * flag disables these constant time
 219  * operations and results in faster RSA
 220  * private key operations.
 221  */
 222 # define RSA_FLAG_NO_CONSTTIME           0x0100
 223 # ifdef OPENSSL_USE_DEPRECATED
 224 /* deprecated name for the flag*/
 225 /*
 226  * new with 0.9.7h; the built-in RSA
 227  * implementation now uses constant time
 228  * modular exponentiation for secret exponents
 229  * by default. This flag causes the
 230  * faster variable sliding window method to
 231  * be used for all exponents.
 232  */
 233 #  define RSA_FLAG_NO_EXP_CONSTTIME RSA_FLAG_NO_CONSTTIME
 234 # endif
 235
 236 # define EVP_PKEY_CTX_set_rsa_padding(ctx, pad) \
 237         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, EVP_PKEY_CTRL_RSA_PADDING, \
 238                                 pad, NULL)
 239
 240 # define EVP_PKEY_CTX_get_rsa_padding(ctx, ppad) \
 241         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, \
 242                                 EVP_PKEY_CTRL_GET_RSA_PADDING, 0, ppad)
 243
 244 # define EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, len) \
 245         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
 246                                 (EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
 247                                 EVP_PKEY_CTRL_RSA_PSS_SALTLEN, \
 248                                 len, NULL)
 249
 250 # define EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, plen) \
 251         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
 252                                 (EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
 253                                 EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN, \
 254                                 0, plen)
 255
 256 # define EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, bits) \
 257         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \
 258                                 EVP_PKEY_CTRL_RSA_KEYGEN_BITS, bits, NULL)
 259
 260 # define EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, pubexp) \
 261         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \
 262                                 EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP, 0, pubexp)
 263
 264 # define  EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, md)  \
 265                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
 266                         EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, \
 267                                 EVP_PKEY_CTRL_RSA_MGF1_MD, 0, (void *)md)
 268
 269 # define  EVP_PKEY_CTX_set_rsa_oaep_md(ctx, md)  \
 270                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
 271                                 EVP_PKEY_CTRL_RSA_OAEP_MD, 0, (void *)md)
 272
 273 # define  EVP_PKEY_CTX_get_rsa_mgf1_md(ctx, pmd) \
 274                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
 275                         EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, \
 276                                 EVP_PKEY_CTRL_GET_RSA_MGF1_MD, 0, (void *)pmd)
 277
 278 # define  EVP_PKEY_CTX_get_rsa_oaep_md(ctx, pmd) \
 279                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
 280                                 EVP_PKEY_CTRL_GET_RSA_OAEP_MD, 0, (void *)pmd)
 281
 282 # define  EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, l, llen) \
 283                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
 284                                 EVP_PKEY_CTRL_RSA_OAEP_LABEL, llen, (void *)l)
 285
 286 # define  EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, l)       \
 287                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
 288                                 EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL, 0, (void *)l)
 289
 290 # define EVP_PKEY_CTRL_RSA_PADDING       (EVP_PKEY_ALG_CTRL + 1)
 291 # define EVP_PKEY_CTRL_RSA_PSS_SALTLEN   (EVP_PKEY_ALG_CTRL + 2)
 292
 293 # define EVP_PKEY_CTRL_RSA_KEYGEN_BITS   (EVP_PKEY_ALG_CTRL + 3)
 294 # define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 4)
 295 # define EVP_PKEY_CTRL_RSA_MGF1_MD       (EVP_PKEY_ALG_CTRL + 5)
 296
 297 # define EVP_PKEY_CTRL_GET_RSA_PADDING           (EVP_PKEY_ALG_CTRL + 6)
 298 # define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN       (EVP_PKEY_ALG_CTRL + 7)
 299 # define EVP_PKEY_CTRL_GET_RSA_MGF1_MD           (EVP_PKEY_ALG_CTRL + 8)
 300
 301 # define EVP_PKEY_CTRL_RSA_OAEP_MD       (EVP_PKEY_ALG_CTRL + 9)
 302 # define EVP_PKEY_CTRL_RSA_OAEP_LABEL    (EVP_PKEY_ALG_CTRL + 10)
 303
 304 # define EVP_PKEY_CTRL_GET_RSA_OAEP_MD   (EVP_PKEY_ALG_CTRL + 11)
 305 # define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12)
 306
 307 # define RSA_PKCS1_PADDING       1
 308 # define RSA_SSLV23_PADDING      2
 309 # define RSA_NO_PADDING          3
 310 # define RSA_PKCS1_OAEP_PADDING  4
 311 # define RSA_X931_PADDING        5
 312 /* EVP_PKEY_ only */
 313 # define RSA_PKCS1_PSS_PADDING   6
 314
 315 # define RSA_PKCS1_PADDING_SIZE  11
 316
 317 # define RSA_set_app_data(s,arg)         RSA_set_ex_data(s,0,arg)
 318 # define RSA_get_app_data(s)             RSA_get_ex_data(s,0)
 319
 320 RSA *RSA_new(void);
 321 RSA *RSA_new_method(ENGINE *engine);
 322 int RSA_bits(const RSA *rsa);
 323 int RSA_size(const RSA *rsa);
 324 int RSA_security_bits(const RSA *rsa);
 325
 326 /* Deprecated version */
 327 # ifdef OPENSSL_USE_DEPRECATED
 328 DECLARE_DEPRECATED(RSA *RSA_generate_key(int bits, unsigned long e, void
 329                                           (*callback) (int, int, void *),
 330                                          void *cb_arg));
 331 # endif                         /* defined(OPENSSL_USE_DEPRECATED) */
 332
 333 /* New version */
 334 int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
 335
 336 int RSA_X931_derive_ex(RSA *rsa, BIGNUM *p1, BIGNUM *p2, BIGNUM *q1,
 337                        BIGNUM *q2, const BIGNUM *Xp1, const BIGNUM *Xp2,
 338                        const BIGNUM *Xp, const BIGNUM *Xq1, const BIGNUM *Xq2,
 339                        const BIGNUM *Xq, const BIGNUM *e, BN_GENCB *cb);
 340 int RSA_X931_generate_key_ex(RSA *rsa, int bits, const BIGNUM *e,
 341                              BN_GENCB *cb);
 342
 343 int RSA_check_key(const RSA *);
 344 int RSA_check_key_ex(const RSA *, BN_GENCB *cb);
 345         /* next 4 return -1 on error */
 346 int RSA_public_encrypt(int flen, const unsigned char *from,
 347                        unsigned char *to, RSA *rsa, int padding);
 348 int RSA_private_encrypt(int flen, const unsigned char *from,
 349                         unsigned char *to, RSA *rsa, int padding);
 350 int RSA_public_decrypt(int flen, const unsigned char *from,
 351                        unsigned char *to, RSA *rsa, int padding);
 352 int RSA_private_decrypt(int flen, const unsigned char *from,
 353                         unsigned char *to, RSA *rsa, int padding);
 354 void RSA_free(RSA *r);
 355 /* "up" the RSA object's reference count */
 356 int RSA_up_ref(RSA *r);
 357
 358 int RSA_flags(const RSA *r);
 359
 360 void RSA_set_default_method(const RSA_METHOD *meth);
 361 const RSA_METHOD *RSA_get_default_method(void);
 362 const RSA_METHOD *RSA_get_method(const RSA *rsa);
 363 int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);
 364
 365 /* This function needs the memory locking malloc callbacks to be installed */
 366 int RSA_memory_lock(RSA *r);
 367
 368 /* these are the actual SSLeay RSA functions */
 369 const RSA_METHOD *RSA_PKCS1_SSLeay(void);
 370
 371 const RSA_METHOD *RSA_null_method(void);
 372
 373 DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPublicKey)
 374 DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPrivateKey)
 375
 376 typedef struct rsa_pss_params_st {
 377     X509_ALGOR *hashAlgorithm;
 378     X509_ALGOR *maskGenAlgorithm;
 379     ASN1_INTEGER *saltLength;
 380     ASN1_INTEGER *trailerField;
 381 } RSA_PSS_PARAMS;
 382
 383 DECLARE_ASN1_FUNCTIONS(RSA_PSS_PARAMS)
 384
 385 typedef struct rsa_oaep_params_st {
 386     X509_ALGOR *hashFunc;
 387     X509_ALGOR *maskGenFunc;
 388     X509_ALGOR *pSourceFunc;
 389 } RSA_OAEP_PARAMS;
 390
 391 DECLARE_ASN1_FUNCTIONS(RSA_OAEP_PARAMS)
 392
 393 # ifndef OPENSSL_NO_STDIO
 394 int RSA_print_fp(FILE *fp, const RSA *r, int offset);
 395 # endif
 396
 397 int RSA_print(BIO *bp, const RSA *r, int offset);
 398
 399 /*
 400  * The following 2 functions sign and verify a X509_SIG ASN1 object inside
 401  * PKCS#1 padded RSA encryption
 402  */
 403 int RSA_sign(int type, const unsigned char *m, unsigned int m_length,
 404              unsigned char *sigret, unsigned int *siglen, RSA *rsa);
 405 int RSA_verify(int type, const unsigned char *m, unsigned int m_length,
 406                const unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
 407
 408 /*
 409  * The following 2 function sign and verify a ASN1_OCTET_STRING object inside
 410  * PKCS#1 padded RSA encryption
 411  */
 412 int RSA_sign_ASN1_OCTET_STRING(int type,
 413                                const unsigned char *m, unsigned int m_length,
 414                                unsigned char *sigret, unsigned int *siglen,
 415                                RSA *rsa);
 416 int RSA_verify_ASN1_OCTET_STRING(int type, const unsigned char *m,
 417                                  unsigned int m_length, unsigned char *sigbuf,
 418                                  unsigned int siglen, RSA *rsa);
 419
 420 int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
 421 void RSA_blinding_off(RSA *rsa);
 422 BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);
 423
 424 int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen,
 425                                  const unsigned char *f, int fl);
 426 int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen,
 427                                    const unsigned char *f, int fl,
 428                                    int rsa_len);
 429 int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen,
 430                                  const unsigned char *f, int fl);
 431 int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen,
 432                                    const unsigned char *f, int fl,
 433                                    int rsa_len);
 434 int PKCS1_MGF1(unsigned char *mask, long len, const unsigned char *seed,
 435                long seedlen, const EVP_MD *dgst);
 436 int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen,
 437                                const unsigned char *f, int fl,
 438                                const unsigned char *p, int pl);
 439 int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen,
 440                                  const unsigned char *f, int fl, int rsa_len,
 441                                  const unsigned char *p, int pl);
 442 int RSA_padding_add_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
 443                                     const unsigned char *from, int flen,
 444                                     const unsigned char *param, int plen,
 445                                     const EVP_MD *md, const EVP_MD *mgf1md);
 446 int RSA_padding_check_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
 447                                       const unsigned char *from, int flen,
 448                                       int num, const unsigned char *param,
 449                                       int plen, const EVP_MD *md,
 450                                       const EVP_MD *mgf1md);
 451 int RSA_padding_add_SSLv23(unsigned char *to, int tlen,
 452                            const unsigned char *f, int fl);
 453 int RSA_padding_check_SSLv23(unsigned char *to, int tlen,
 454                              const unsigned char *f, int fl, int rsa_len);
 455 int RSA_padding_add_none(unsigned char *to, int tlen, const unsigned char *f,
 456                          int fl);
 457 int RSA_padding_check_none(unsigned char *to, int tlen,
 458                            const unsigned char *f, int fl, int rsa_len);
 459 int RSA_padding_add_X931(unsigned char *to, int tlen, const unsigned char *f,
 460                          int fl);
 461 int RSA_padding_check_X931(unsigned char *to, int tlen,
 462                            const unsigned char *f, int fl, int rsa_len);
 463 int RSA_X931_hash_id(int nid);
 464
 465 int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
 466                          const EVP_MD *Hash, const unsigned char *EM,
 467                          int sLen);
 468 int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
 469                               const unsigned char *mHash, const EVP_MD *Hash,
 470                               int sLen);
 471
 472 int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
 473                               const EVP_MD *Hash, const EVP_MD *mgf1Hash,
 474                               const unsigned char *EM, int sLen);
 475
 476 int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
 477                                    const unsigned char *mHash,
 478                                    const EVP_MD *Hash, const EVP_MD *mgf1Hash,
 479                                    int sLen);
 480
 481 int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
 482                          CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
 483 int RSA_set_ex_data(RSA *r, int idx, void *arg);
 484 void *RSA_get_ex_data(const RSA *r, int idx);
 485
 486 RSA *RSAPublicKey_dup(RSA *rsa);
 487 RSA *RSAPrivateKey_dup(RSA *rsa);
 488
 489 /*
 490  * If this flag is set the RSA method is FIPS compliant and can be used in
 491  * FIPS mode. This is set in the validated module method. If an application
 492  * sets this flag in its own methods it is its responsibility to ensure the
 493  * result is compliant.
 494  */
 495
 496 # define RSA_FLAG_FIPS_METHOD                    0x0400
 497
 498 /*
 499  * If this flag is set the operations normally disabled in FIPS mode are
 500  * permitted it is then the applications responsibility to ensure that the
 501  * usage is compliant.
 502  */
 503
 504 # define RSA_FLAG_NON_FIPS_ALLOW                 0x0400
 505 /*
 506  * Application has decided PRNG is good enough to generate a key: don't
 507  * check.
 508  */
 509 # define RSA_FLAG_CHECKED                        0x0800
 510
 511 /* BEGIN ERROR CODES */
 512 /*
 513  * The following lines are auto generated by the script mkerr.pl. Any changes
 514  * made after this point may be overwritten when the script is next run.
 515  */
 516 void ERR_load_RSA_strings(void);
 517
 518 /* Error codes for the RSA functions. */
 519
 520 /* Function codes. */
 521 # define RSA_F_CHECK_PADDING_MD                           140
 522 # define RSA_F_DO_RSA_PRINT                               146
 523 # define RSA_F_FIPS_RSA_SIGN_DIGEST                       149
 524 # define RSA_F_FIPS_RSA_VERIFY                            150
 525 # define RSA_F_FIPS_RSA_VERIFY_DIGEST                     151
 526 # define RSA_F_INT_RSA_VERIFY                             145
 527 # define RSA_F_MEMORY_LOCK                                100
 528 # define RSA_F_OLD_RSA_PRIV_DECODE                        147
 529 # define RSA_F_PKEY_RSA_CTRL                              143
 530 # define RSA_F_PKEY_RSA_CTRL_STR                          144
 531 # define RSA_F_PKEY_RSA_SIGN                              142
 532 # define RSA_F_PKEY_RSA_VERIFYRECOVER                     141
 533 # define RSA_F_RSA_ALGOR_TO_MD                            156
 534 # define RSA_F_RSA_BUILTIN_KEYGEN                         129
 535 # define RSA_F_RSA_CHECK_KEY                              123
 536 # define RSA_F_RSA_CHECK_KEY_EX                           160
 537 # define RSA_F_RSA_CMS_DECRYPT                            159
 538 # define RSA_F_RSA_EAY_PRIVATE_DECRYPT                    101
 539 # define RSA_F_RSA_EAY_PRIVATE_ENCRYPT                    102
 540 # define RSA_F_RSA_EAY_PUBLIC_DECRYPT                     103
 541 # define RSA_F_RSA_EAY_PUBLIC_ENCRYPT                     104
 542 # define RSA_F_RSA_GENERATE_KEY                           105
 543 # define RSA_F_RSA_ITEM_VERIFY                            148
 544 # define RSA_F_RSA_MEMORY_LOCK                            130
 545 # define RSA_F_RSA_MGF1_TO_MD                             157
 546 # define RSA_F_RSA_NEW_METHOD                             106
 547 # define RSA_F_RSA_NULL                                   124
 548 # define RSA_F_RSA_NULL_MOD_EXP                           131
 549 # define RSA_F_RSA_NULL_PRIVATE_DECRYPT                   132
 550 # define RSA_F_RSA_NULL_PRIVATE_ENCRYPT                   133
 551 # define RSA_F_RSA_NULL_PUBLIC_DECRYPT                    134
 552 # define RSA_F_RSA_NULL_PUBLIC_ENCRYPT                    135
 553 # define RSA_F_RSA_OAEP_TO_CTX                            158
 554 # define RSA_F_RSA_PADDING_ADD_NONE                       107
 555 # define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP                 121
 556 # define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP_MGF1            154
 557 # define RSA_F_RSA_PADDING_ADD_PKCS1_PSS                  125
 558 # define RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1             152
 559 # define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1               108
 560 # define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2               109
 561 # define RSA_F_RSA_PADDING_ADD_SSLV23                     110
 562 # define RSA_F_RSA_PADDING_ADD_X931                       127
 563 # define RSA_F_RSA_PADDING_CHECK_NONE                     111
 564 # define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP               122
 565 # define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP_MGF1          153
 566 # define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1             112
 567 # define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2             113
 568 # define RSA_F_RSA_PADDING_CHECK_SSLV23                   114
 569 # define RSA_F_RSA_PADDING_CHECK_X931                     128
 570 # define RSA_F_RSA_PRINT                                  115
 571 # define RSA_F_RSA_PRINT_FP                               116
 572 # define RSA_F_RSA_PRIV_DECODE                            137
 573 # define RSA_F_RSA_PRIV_ENCODE                            138
 574 # define RSA_F_RSA_PSS_TO_CTX                             155
 575 # define RSA_F_RSA_PUB_DECODE                             139
 576 # define RSA_F_RSA_SETUP_BLINDING                         136
 577 # define RSA_F_RSA_SIGN                                   117
 578 # define RSA_F_RSA_SIGN_ASN1_OCTET_STRING                 118
 579 # define RSA_F_RSA_VERIFY                                 119
 580 # define RSA_F_RSA_VERIFY_ASN1_OCTET_STRING               120
 581 # define RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1                  126
 582
 583 /* Reason codes. */
 584 # define RSA_R_ALGORITHM_MISMATCH                         100
 585 # define RSA_R_BAD_E_VALUE                                101
 586 # define RSA_R_BAD_FIXED_HEADER_DECRYPT                   102
 587 # define RSA_R_BAD_PAD_BYTE_COUNT                         103
 588 # define RSA_R_BAD_SIGNATURE                              104
 589 # define RSA_R_BLOCK_TYPE_IS_NOT_01                       106
 590 # define RSA_R_BLOCK_TYPE_IS_NOT_02                       107
 591 # define RSA_R_DATA_GREATER_THAN_MOD_LEN                  108
 592 # define RSA_R_DATA_TOO_LARGE                             109
 593 # define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE                110
 594 # define RSA_R_DATA_TOO_LARGE_FOR_MODULUS                 132
 595 # define RSA_R_DATA_TOO_SMALL                             111
 596 # define RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE                122
 597 # define RSA_R_DIGEST_DOES_NOT_MATCH                      158
 598 # define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY                 112
 599 # define RSA_R_DMP1_NOT_CONGRUENT_TO_D                    124
 600 # define RSA_R_DMQ1_NOT_CONGRUENT_TO_D                    125
 601 # define RSA_R_D_E_NOT_CONGRUENT_TO_1                     123
 602 # define RSA_R_FIRST_OCTET_INVALID                        133
 603 # define RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE        144
 604 # define RSA_R_INVALID_DIGEST                             157
 605 # define RSA_R_INVALID_DIGEST_LENGTH                      143
 606 # define RSA_R_INVALID_HEADER                             137
 607 # define RSA_R_INVALID_KEYBITS                            145
 608 # define RSA_R_INVALID_LABEL                              160
 609 # define RSA_R_INVALID_MESSAGE_LENGTH                     131
 610 # define RSA_R_INVALID_MGF1_MD                            156
 611 # define RSA_R_INVALID_OAEP_PARAMETERS                    161
 612 # define RSA_R_INVALID_PADDING                            138
 613 # define RSA_R_INVALID_PADDING_MODE                       141
 614 # define RSA_R_INVALID_PSS_PARAMETERS                     149
 615 # define RSA_R_INVALID_PSS_SALTLEN                        146
 616 # define RSA_R_INVALID_SALT_LENGTH                        150
 617 # define RSA_R_INVALID_TRAILER                            139
 618 # define RSA_R_INVALID_X931_DIGEST                        142
 619 # define RSA_R_IQMP_NOT_INVERSE_OF_Q                      126
 620 # define RSA_R_KEY_SIZE_TOO_SMALL                         120
 621 # define RSA_R_LAST_OCTET_INVALID                         134
 622 # define RSA_R_MODULUS_TOO_LARGE                          105
 623 # define RSA_R_NO_PUBLIC_EXPONENT                         140
 624 # define RSA_R_NULL_BEFORE_BLOCK_MISSING                  113
 625 # define RSA_R_N_DOES_NOT_EQUAL_P_Q                       127
 626 # define RSA_R_OAEP_DECODING_ERROR                        121
 627 # define RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE   148
 628 # define RSA_R_PADDING_CHECK_FAILED                       114
 629 # define RSA_R_PKCS_DECODING_ERROR                        159
 630 # define RSA_R_P_NOT_PRIME                                128
 631 # define RSA_R_Q_NOT_PRIME                                129
 632 # define RSA_R_RSA_OPERATIONS_NOT_SUPPORTED               130
 633 # define RSA_R_SLEN_CHECK_FAILED                          136
 634 # define RSA_R_SLEN_RECOVERY_FAILED                       135
 635 # define RSA_R_SSLV3_ROLLBACK_ATTACK                      115
 636 # define RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD 116
 637 # define RSA_R_UNKNOWN_ALGORITHM_TYPE                     117
 638 # define RSA_R_UNKNOWN_DIGEST                             166
 639 # define RSA_R_UNKNOWN_MASK_DIGEST                        151
 640 # define RSA_R_UNKNOWN_PADDING_TYPE                       118
 641 # define RSA_R_UNKNOWN_PSS_DIGEST                         152
 642 # define RSA_R_UNSUPPORTED_ENCRYPTION_TYPE                162
 643 # define RSA_R_UNSUPPORTED_LABEL_SOURCE                   163
 644 # define RSA_R_UNSUPPORTED_MASK_ALGORITHM                 153
 645 # define RSA_R_UNSUPPORTED_MASK_PARAMETER                 154
 646 # define RSA_R_UNSUPPORTED_SIGNATURE_TYPE                 155
 647 # define RSA_R_VALUE_MISSING                              147
 648 # define RSA_R_WRONG_SIGNATURE_LENGTH                     119
 649
 650 #ifdef  __cplusplus
 651 }
 652 #endif
 653 #endif