include/openssl/rsa.h

   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
  58 #ifndef HEADER_RSA_H
  59 # define HEADER_RSA_H
  60
  61 # include <openssl/opensslconf.h>
  62 # include <openssl/asn1.h>
  63
  64 # include <openssl/bio.h>
  65 # include <openssl/crypto.h>
  66 # include <openssl/ossl_typ.h>
  67 # if OPENSSL_API_COMPAT < 0x10100000L
  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.
 111      */
 112     int (*rsa_sign) (int type,
 113                      const unsigned char *m, unsigned int m_length,
 114                      unsigned char *sigret, unsigned int *siglen,
 115                      const RSA *rsa);
 116     int (*rsa_verify) (int dtype, const unsigned char *m,
 117                        unsigned int m_length, const unsigned char *sigbuf,
 118                        unsigned int siglen, const RSA *rsa);
 119     /*
 120      * If this callback is NULL, the builtin software RSA key-gen will be
 121      * used. This is for behavioural compatibility whilst the code gets
 122      * rewired, but one day it would be nice to assume there are no such
 123      * things as "builtin software" implementations.
 124      */
 125     int (*rsa_keygen) (RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
 126 };
 127
 128 struct rsa_st {
 129     /*
 130      * The first parameter is used to pickup errors where this is passed
 131      * instead of aEVP_PKEY, it is set to 0
 132      */
 133     int pad;
 134     long version;
 135     const RSA_METHOD *meth;
 136     /* functional reference if 'meth' is ENGINE-provided */
 137     ENGINE *engine;
 138     BIGNUM *n;
 139     BIGNUM *e;
 140     BIGNUM *d;
 141     BIGNUM *p;
 142     BIGNUM *q;
 143     BIGNUM *dmp1;
 144     BIGNUM *dmq1;
 145     BIGNUM *iqmp;
 146     /* be careful using this if the RSA structure is shared */
 147     CRYPTO_EX_DATA ex_data;
 148     int references;
 149     int flags;
 150     /* Used to cache montgomery values */
 151     BN_MONT_CTX *_method_mod_n;
 152     BN_MONT_CTX *_method_mod_p;
 153     BN_MONT_CTX *_method_mod_q;
 154     /*
 155      * all BIGNUM values are actually in the following data, if it is not
 156      * NULL
 157      */
 158     char *bignum_data;
 159     BN_BLINDING *blinding;
 160     BN_BLINDING *mt_blinding;
 161 };
 162
 163 # ifndef OPENSSL_RSA_MAX_MODULUS_BITS
 164 #  define OPENSSL_RSA_MAX_MODULUS_BITS   16384
 165 # endif
 166
 167 # define OPENSSL_RSA_FIPS_MIN_MODULUS_BITS 1024
 168
 169 # ifndef OPENSSL_RSA_SMALL_MODULUS_BITS
 170 #  define OPENSSL_RSA_SMALL_MODULUS_BITS 3072
 171 # endif
 172 # ifndef OPENSSL_RSA_MAX_PUBEXP_BITS
 173
 174 /* exponent limit enforced for "large" modulus only */
 175 #  define OPENSSL_RSA_MAX_PUBEXP_BITS    64
 176 # endif
 177
 178 # define RSA_3   0x3L
 179 # define RSA_F4  0x10001L
 180
 181 # define RSA_METHOD_FLAG_NO_CHECK        0x0001/* don't check pub/private
 182                                                 * match */
 183
 184 # define RSA_FLAG_CACHE_PUBLIC           0x0002
 185 # define RSA_FLAG_CACHE_PRIVATE          0x0004
 186 # define RSA_FLAG_BLINDING               0x0008
 187 # define RSA_FLAG_THREAD_SAFE            0x0010
 188 /*
 189  * This flag means the private key operations will be handled by rsa_mod_exp
 190  * and that they do not depend on the private key components being present:
 191  * for example a key stored in external hardware. Without this flag
 192  * bn_mod_exp gets called when private key components are absent.
 193  */
 194 # define RSA_FLAG_EXT_PKEY               0x0020
 195
 196 /*
 197  * new with 0.9.6j and 0.9.7b; the built-in
 198  * RSA implementation now uses blinding by
 199  * default (ignoring RSA_FLAG_BLINDING),
 200  * but other engines might not need it
 201  */
 202 # define RSA_FLAG_NO_BLINDING            0x0080
 203 /*
 204  * new with 0.9.8f; the built-in RSA
 205  * implementation now uses constant time
 206  * operations by default in private key operations,
 207  * e.g., constant time modular exponentiation,
 208  * modular inverse without leaking branches,
 209  * division without leaking branches. This
 210  * flag disables these constant time
 211  * operations and results in faster RSA
 212  * private key operations.
 213  */
 214 # define RSA_FLAG_NO_CONSTTIME           0x0100
 215 # if OPENSSL_API_COMPAT < 0x00908000L
 216 /* deprecated name for the flag*/
 217 /*
 218  * new with 0.9.7h; the built-in RSA
 219  * implementation now uses constant time
 220  * modular exponentiation for secret exponents
 221  * by default. This flag causes the
 222  * faster variable sliding window method to
 223  * be used for all exponents.
 224  */
 225 #  define RSA_FLAG_NO_EXP_CONSTTIME RSA_FLAG_NO_CONSTTIME
 226 # endif
 227
 228 # define EVP_PKEY_CTX_set_rsa_padding(ctx, pad) \
 229         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, EVP_PKEY_CTRL_RSA_PADDING, \
 230                                 pad, NULL)
 231
 232 # define EVP_PKEY_CTX_get_rsa_padding(ctx, ppad) \
 233         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, \
 234                                 EVP_PKEY_CTRL_GET_RSA_PADDING, 0, ppad)
 235
 236 # define EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, len) \
 237         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
 238                                 (EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
 239                                 EVP_PKEY_CTRL_RSA_PSS_SALTLEN, \
 240                                 len, NULL)
 241
 242 # define EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, plen) \
 243         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
 244                                 (EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
 245                                 EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN, \
 246                                 0, plen)
 247
 248 # define EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, bits) \
 249         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \
 250                                 EVP_PKEY_CTRL_RSA_KEYGEN_BITS, bits, NULL)
 251
 252 # define EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, pubexp) \
 253         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \
 254                                 EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP, 0, pubexp)
 255
 256 # define  EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, md)  \
 257                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
 258                         EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, \
 259                                 EVP_PKEY_CTRL_RSA_MGF1_MD, 0, (void *)md)
 260
 261 # define  EVP_PKEY_CTX_set_rsa_oaep_md(ctx, md)  \
 262                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
 263                                 EVP_PKEY_CTRL_RSA_OAEP_MD, 0, (void *)md)
 264
 265 # define  EVP_PKEY_CTX_get_rsa_mgf1_md(ctx, pmd) \
 266                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
 267                         EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, \
 268                                 EVP_PKEY_CTRL_GET_RSA_MGF1_MD, 0, (void *)pmd)
 269
 270 # define  EVP_PKEY_CTX_get_rsa_oaep_md(ctx, pmd) \
 271                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
 272                                 EVP_PKEY_CTRL_GET_RSA_OAEP_MD, 0, (void *)pmd)
 273
 274 # define  EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, l, llen) \
 275                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
 276                                 EVP_PKEY_CTRL_RSA_OAEP_LABEL, llen, (void *)l)
 277
 278 # define  EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, l)       \
 279                 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
 280                                 EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL, 0, (void *)l)
 281
 282 # define EVP_PKEY_CTRL_RSA_PADDING       (EVP_PKEY_ALG_CTRL + 1)
 283 # define EVP_PKEY_CTRL_RSA_PSS_SALTLEN   (EVP_PKEY_ALG_CTRL + 2)
 284
 285 # define EVP_PKEY_CTRL_RSA_KEYGEN_BITS   (EVP_PKEY_ALG_CTRL + 3)
 286 # define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 4)
 287 # define EVP_PKEY_CTRL_RSA_MGF1_MD       (EVP_PKEY_ALG_CTRL + 5)
 288
 289 # define EVP_PKEY_CTRL_GET_RSA_PADDING           (EVP_PKEY_ALG_CTRL + 6)
 290 # define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN       (EVP_PKEY_ALG_CTRL + 7)
 291 # define EVP_PKEY_CTRL_GET_RSA_MGF1_MD           (EVP_PKEY_ALG_CTRL + 8)
 292
 293 # define EVP_PKEY_CTRL_RSA_OAEP_MD       (EVP_PKEY_ALG_CTRL + 9)
 294 # define EVP_PKEY_CTRL_RSA_OAEP_LABEL    (EVP_PKEY_ALG_CTRL + 10)
 295
 296 # define EVP_PKEY_CTRL_GET_RSA_OAEP_MD   (EVP_PKEY_ALG_CTRL + 11)
 297 # define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12)
 298
 299 # define RSA_PKCS1_PADDING       1
 300 # define RSA_SSLV23_PADDING      2
 301 # define RSA_NO_PADDING          3
 302 # define RSA_PKCS1_OAEP_PADDING  4
 303 # define RSA_X931_PADDING        5
 304 /* EVP_PKEY_ only */
 305 # define RSA_PKCS1_PSS_PADDING   6
 306
 307 # define RSA_PKCS1_PADDING_SIZE  11
 308
 309 # define RSA_set_app_data(s,arg)         RSA_set_ex_data(s,0,arg)
 310 # define RSA_get_app_data(s)             RSA_get_ex_data(s,0)
 311
 312 RSA *RSA_new(void);
 313 RSA *RSA_new_method(ENGINE *engine);
 314 int RSA_bits(const RSA *rsa);
 315 int RSA_size(const RSA *rsa);
 316 int RSA_security_bits(const RSA *rsa);
 317
 318 /* Deprecated version */
 319 DEPRECATEDIN_0_9_8(RSA *RSA_generate_key(int bits, unsigned long e, void
 320                                          (*callback) (int, int, void *),
 321                                          void *cb_arg))
 322
 323 /* New version */
 324 int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
 325
 326 int RSA_X931_derive_ex(RSA *rsa, BIGNUM *p1, BIGNUM *p2, BIGNUM *q1,
 327                        BIGNUM *q2, const BIGNUM *Xp1, const BIGNUM *Xp2,
 328                        const BIGNUM *Xp, const BIGNUM *Xq1, const BIGNUM *Xq2,
 329                        const BIGNUM *Xq, const BIGNUM *e, BN_GENCB *cb);
 330 int RSA_X931_generate_key_ex(RSA *rsa, int bits, const BIGNUM *e,
 331                              BN_GENCB *cb);
 332
 333 int RSA_check_key(const RSA *);
 334 int RSA_check_key_ex(const RSA *, BN_GENCB *cb);
 335         /* next 4 return -1 on error */
 336 int RSA_public_encrypt(int flen, const unsigned char *from,
 337                        unsigned char *to, RSA *rsa, int padding);
 338 int RSA_private_encrypt(int flen, const unsigned char *from,
 339                         unsigned char *to, RSA *rsa, int padding);
 340 int RSA_public_decrypt(int flen, const unsigned char *from,
 341                        unsigned char *to, RSA *rsa, int padding);
 342 int RSA_private_decrypt(int flen, const unsigned char *from,
 343                         unsigned char *to, RSA *rsa, int padding);
 344 void RSA_free(RSA *r);
 345 /* "up" the RSA object's reference count */
 346 int RSA_up_ref(RSA *r);
 347
 348 int RSA_flags(const RSA *r);
 349
 350 void RSA_set_default_method(const RSA_METHOD *meth);
 351 const RSA_METHOD *RSA_get_default_method(void);
 352 const RSA_METHOD *RSA_get_method(const RSA *rsa);
 353 int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);
 354
 355 /* This function needs the memory locking malloc callbacks to be installed */
 356 int RSA_memory_lock(RSA *r);
 357
 358 /* these are the actual RSA functions */
 359 const RSA_METHOD *RSA_PKCS1_OpenSSL(void);
 360
 361 const RSA_METHOD *RSA_null_method(void);
 362
 363 DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPublicKey)
 364 DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPrivateKey)
 365
 366 typedef struct rsa_pss_params_st {
 367     X509_ALGOR *hashAlgorithm;
 368     X509_ALGOR *maskGenAlgorithm;
 369     ASN1_INTEGER *saltLength;
 370     ASN1_INTEGER *trailerField;
 371 } RSA_PSS_PARAMS;
 372
 373 DECLARE_ASN1_FUNCTIONS(RSA_PSS_PARAMS)
 374
 375 typedef struct rsa_oaep_params_st {
 376     X509_ALGOR *hashFunc;
 377     X509_ALGOR *maskGenFunc;
 378     X509_ALGOR *pSourceFunc;
 379 } RSA_OAEP_PARAMS;
 380
 381 DECLARE_ASN1_FUNCTIONS(RSA_OAEP_PARAMS)
 382
 383 # ifndef OPENSSL_NO_STDIO
 384 int RSA_print_fp(FILE *fp, const RSA *r, int offset);
 385 # endif
 386
 387 int RSA_print(BIO *bp, const RSA *r, int offset);
 388
 389 /*
 390  * The following 2 functions sign and verify a X509_SIG ASN1 object inside
 391  * PKCS#1 padded RSA encryption
 392  */
 393 int RSA_sign(int type, const unsigned char *m, unsigned int m_length,
 394              unsigned char *sigret, unsigned int *siglen, RSA *rsa);
 395 int RSA_verify(int type, const unsigned char *m, unsigned int m_length,
 396                const unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
 397
 398 /*
 399  * The following 2 function sign and verify a ASN1_OCTET_STRING object inside
 400  * PKCS#1 padded RSA encryption
 401  */
 402 int RSA_sign_ASN1_OCTET_STRING(int type,
 403                                const unsigned char *m, unsigned int m_length,
 404                                unsigned char *sigret, unsigned int *siglen,
 405                                RSA *rsa);
 406 int RSA_verify_ASN1_OCTET_STRING(int type, const unsigned char *m,
 407                                  unsigned int m_length, unsigned char *sigbuf,
 408                                  unsigned int siglen, RSA *rsa);
 409
 410 int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
 411 void RSA_blinding_off(RSA *rsa);
 412 BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);
 413
 414 int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen,
 415                                  const unsigned char *f, int fl);
 416 int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen,
 417                                    const unsigned char *f, int fl,
 418                                    int rsa_len);
 419 int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen,
 420                                  const unsigned char *f, int fl);
 421 int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen,
 422                                    const unsigned char *f, int fl,
 423                                    int rsa_len);
 424 int PKCS1_MGF1(unsigned char *mask, long len, const unsigned char *seed,
 425                long seedlen, const EVP_MD *dgst);
 426 int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen,
 427                                const unsigned char *f, int fl,
 428                                const unsigned char *p, int pl);
 429 int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen,
 430                                  const unsigned char *f, int fl, int rsa_len,
 431                                  const unsigned char *p, int pl);
 432 int RSA_padding_add_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
 433                                     const unsigned char *from, int flen,
 434                                     const unsigned char *param, int plen,
 435                                     const EVP_MD *md, const EVP_MD *mgf1md);
 436 int RSA_padding_check_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
 437                                       const unsigned char *from, int flen,
 438                                       int num, const unsigned char *param,
 439                                       int plen, const EVP_MD *md,
 440                                       const EVP_MD *mgf1md);
 441 int RSA_padding_add_SSLv23(unsigned char *to, int tlen,
 442                            const unsigned char *f, int fl);
 443 int RSA_padding_check_SSLv23(unsigned char *to, int tlen,
 444                              const unsigned char *f, int fl, int rsa_len);
 445 int RSA_padding_add_none(unsigned char *to, int tlen, const unsigned char *f,
 446                          int fl);
 447 int RSA_padding_check_none(unsigned char *to, int tlen,
 448                            const unsigned char *f, int fl, int rsa_len);
 449 int RSA_padding_add_X931(unsigned char *to, int tlen, const unsigned char *f,
 450                          int fl);
 451 int RSA_padding_check_X931(unsigned char *to, int tlen,
 452                            const unsigned char *f, int fl, int rsa_len);
 453 int RSA_X931_hash_id(int nid);
 454
 455 int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
 456                          const EVP_MD *Hash, const unsigned char *EM,
 457                          int sLen);
 458 int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
 459                               const unsigned char *mHash, const EVP_MD *Hash,
 460                               int sLen);
 461
 462 int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
 463                               const EVP_MD *Hash, const EVP_MD *mgf1Hash,
 464                               const unsigned char *EM, int sLen);
 465
 466 int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
 467                                    const unsigned char *mHash,
 468                                    const EVP_MD *Hash, const EVP_MD *mgf1Hash,
 469                                    int sLen);
 470
 471 #define RSA_get_ex_new_index(l, p, newf, dupf, freef) \
 472     CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, l, p, newf, dupf, freef)
 473 int RSA_set_ex_data(RSA *r, int idx, void *arg);
 474 void *RSA_get_ex_data(const RSA *r, int idx);
 475
 476 RSA *RSAPublicKey_dup(RSA *rsa);
 477 RSA *RSAPrivateKey_dup(RSA *rsa);
 478
 479 /*
 480  * If this flag is set the RSA method is FIPS compliant and can be used in
 481  * FIPS mode. This is set in the validated module method. If an application
 482  * sets this flag in its own methods it is its responsibility to ensure the
 483  * result is compliant.
 484  */
 485
 486 # define RSA_FLAG_FIPS_METHOD                    0x0400
 487
 488 /*
 489  * If this flag is set the operations normally disabled in FIPS mode are
 490  * permitted it is then the applications responsibility to ensure that the
 491  * usage is compliant.
 492  */
 493
 494 # define RSA_FLAG_NON_FIPS_ALLOW                 0x0400
 495 /*
 496  * Application has decided PRNG is good enough to generate a key: don't
 497  * check.
 498  */
 499 # define RSA_FLAG_CHECKED                        0x0800
 500
 501 /* BEGIN ERROR CODES */
 502 /*
 503  * The following lines are auto generated by the script mkerr.pl. Any changes
 504  * made after this point may be overwritten when the script is next run.
 505  */
 506 void ERR_load_RSA_strings(void);
 507
 508 /* Error codes for the RSA functions. */
 509
 510 /* Function codes. */
 511 # define RSA_F_CHECK_PADDING_MD                           140
 512 # define RSA_F_DO_RSA_PRINT                               146
 513 # define RSA_F_FIPS_RSA_SIGN_DIGEST                       149
 514 # define RSA_F_FIPS_RSA_VERIFY                            150
 515 # define RSA_F_FIPS_RSA_VERIFY_DIGEST                     151
 516 # define RSA_F_INT_RSA_VERIFY                             145
 517 # define RSA_F_MEMORY_LOCK                                100
 518 # define RSA_F_OLD_RSA_PRIV_DECODE                        147
 519 # define RSA_F_PKEY_RSA_CTRL                              143
 520 # define RSA_F_PKEY_RSA_CTRL_STR                          144
 521 # define RSA_F_PKEY_RSA_SIGN                              142
 522 # define RSA_F_PKEY_RSA_VERIFYRECOVER                     141
 523 # define RSA_F_RSA_ALGOR_TO_MD                            156
 524 # define RSA_F_RSA_BUILTIN_KEYGEN                         129
 525 # define RSA_F_RSA_CHECK_KEY                              123
 526 # define RSA_F_RSA_CHECK_KEY_EX                           160
 527 # define RSA_F_RSA_CMS_DECRYPT                            159
 528 # define RSA_F_RSA_OSSL_PRIVATE_DECRYPT                   101
 529 # define RSA_F_RSA_OSSL_PRIVATE_ENCRYPT                   102
 530 # define RSA_F_RSA_OSSL_PUBLIC_DECRYPT                    103
 531 # define RSA_F_RSA_OSSL_PUBLIC_ENCRYPT                    104
 532 # define RSA_F_RSA_GENERATE_KEY                           105
 533 # define RSA_F_RSA_ITEM_VERIFY                            148
 534 # define RSA_F_RSA_MEMORY_LOCK                            130
 535 # define RSA_F_RSA_MGF1_TO_MD                             157
 536 # define RSA_F_RSA_NEW_METHOD                             106
 537 # define RSA_F_RSA_NULL                                   124
 538 # define RSA_F_RSA_NULL_MOD_EXP                           131
 539 # define RSA_F_RSA_NULL_PRIVATE_DECRYPT                   132
 540 # define RSA_F_RSA_NULL_PRIVATE_ENCRYPT                   133
 541 # define RSA_F_RSA_NULL_PUBLIC_DECRYPT                    134
 542 # define RSA_F_RSA_NULL_PUBLIC_ENCRYPT                    135
 543 # define RSA_F_RSA_OAEP_TO_CTX                            158
 544 # define RSA_F_RSA_PADDING_ADD_NONE                       107
 545 # define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP                 121
 546 # define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP_MGF1            154
 547 # define RSA_F_RSA_PADDING_ADD_PKCS1_PSS                  125
 548 # define RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1             152
 549 # define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1               108
 550 # define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2               109
 551 # define RSA_F_RSA_PADDING_ADD_SSLV23                     110
 552 # define RSA_F_RSA_PADDING_ADD_X931                       127
 553 # define RSA_F_RSA_PADDING_CHECK_NONE                     111
 554 # define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP               122
 555 # define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP_MGF1          153
 556 # define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1             112
 557 # define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2             113
 558 # define RSA_F_RSA_PADDING_CHECK_SSLV23                   114
 559 # define RSA_F_RSA_PADDING_CHECK_X931                     128
 560 # define RSA_F_RSA_PRINT                                  115
 561 # define RSA_F_RSA_PRINT_FP                               116
 562 # define RSA_F_RSA_PRIV_DECODE                            137
 563 # define RSA_F_RSA_PRIV_ENCODE                            138
 564 # define RSA_F_RSA_PSS_TO_CTX                             155
 565 # define RSA_F_RSA_PUB_DECODE                             139
 566 # define RSA_F_RSA_SETUP_BLINDING                         136
 567 # define RSA_F_RSA_SIGN                                   117
 568 # define RSA_F_RSA_SIGN_ASN1_OCTET_STRING                 118
 569 # define RSA_F_RSA_VERIFY                                 119
 570 # define RSA_F_RSA_VERIFY_ASN1_OCTET_STRING               120
 571 # define RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1                  126
 572
 573 /* Reason codes. */
 574 # define RSA_R_ALGORITHM_MISMATCH                         100
 575 # define RSA_R_BAD_E_VALUE                                101
 576 # define RSA_R_BAD_FIXED_HEADER_DECRYPT                   102
 577 # define RSA_R_BAD_PAD_BYTE_COUNT                         103
 578 # define RSA_R_BAD_SIGNATURE                              104
 579 # define RSA_R_BLOCK_TYPE_IS_NOT_01                       106
 580 # define RSA_R_BLOCK_TYPE_IS_NOT_02                       107
 581 # define RSA_R_DATA_GREATER_THAN_MOD_LEN                  108
 582 # define RSA_R_DATA_TOO_LARGE                             109
 583 # define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE                110
 584 # define RSA_R_DATA_TOO_LARGE_FOR_MODULUS                 132
 585 # define RSA_R_DATA_TOO_SMALL                             111
 586 # define RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE                122
 587 # define RSA_R_DIGEST_DOES_NOT_MATCH                      158
 588 # define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY                 112
 589 # define RSA_R_DMP1_NOT_CONGRUENT_TO_D                    124
 590 # define RSA_R_DMQ1_NOT_CONGRUENT_TO_D                    125
 591 # define RSA_R_D_E_NOT_CONGRUENT_TO_1                     123
 592 # define RSA_R_FIRST_OCTET_INVALID                        133
 593 # define RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE        144
 594 # define RSA_R_INVALID_DIGEST                             157
 595 # define RSA_R_INVALID_DIGEST_LENGTH                      143
 596 # define RSA_R_INVALID_HEADER                             137
 597 # define RSA_R_INVALID_KEYBITS                            145
 598 # define RSA_R_INVALID_LABEL                              160
 599 # define RSA_R_INVALID_MESSAGE_LENGTH                     131
 600 # define RSA_R_INVALID_MGF1_MD                            156
 601 # define RSA_R_INVALID_OAEP_PARAMETERS                    161
 602 # define RSA_R_INVALID_PADDING                            138
 603 # define RSA_R_INVALID_PADDING_MODE                       141
 604 # define RSA_R_INVALID_PSS_PARAMETERS                     149
 605 # define RSA_R_INVALID_PSS_SALTLEN                        146
 606 # define RSA_R_INVALID_SALT_LENGTH                        150
 607 # define RSA_R_INVALID_TRAILER                            139
 608 # define RSA_R_INVALID_X931_DIGEST                        142
 609 # define RSA_R_IQMP_NOT_INVERSE_OF_Q                      126
 610 # define RSA_R_KEY_SIZE_TOO_SMALL                         120
 611 # define RSA_R_LAST_OCTET_INVALID                         134
 612 # define RSA_R_MODULUS_TOO_LARGE                          105
 613 # define RSA_R_NO_PUBLIC_EXPONENT                         140
 614 # define RSA_R_NULL_BEFORE_BLOCK_MISSING                  113
 615 # define RSA_R_N_DOES_NOT_EQUAL_P_Q                       127
 616 # define RSA_R_OAEP_DECODING_ERROR                        121
 617 # define RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE   148
 618 # define RSA_R_PADDING_CHECK_FAILED                       114
 619 # define RSA_R_PKCS_DECODING_ERROR                        159
 620 # define RSA_R_P_NOT_PRIME                                128
 621 # define RSA_R_Q_NOT_PRIME                                129
 622 # define RSA_R_RSA_OPERATIONS_NOT_SUPPORTED               130
 623 # define RSA_R_SLEN_CHECK_FAILED                          136
 624 # define RSA_R_SLEN_RECOVERY_FAILED                       135
 625 # define RSA_R_SSLV3_ROLLBACK_ATTACK                      115
 626 # define RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD 116
 627 # define RSA_R_UNKNOWN_ALGORITHM_TYPE                     117
 628 # define RSA_R_UNKNOWN_DIGEST                             166
 629 # define RSA_R_UNKNOWN_MASK_DIGEST                        151
 630 # define RSA_R_UNKNOWN_PADDING_TYPE                       118
 631 # define RSA_R_UNKNOWN_PSS_DIGEST                         152
 632 # define RSA_R_UNSUPPORTED_ENCRYPTION_TYPE                162
 633 # define RSA_R_UNSUPPORTED_LABEL_SOURCE                   163
 634 # define RSA_R_UNSUPPORTED_MASK_ALGORITHM                 153
 635 # define RSA_R_UNSUPPORTED_MASK_PARAMETER                 154
 636 # define RSA_R_UNSUPPORTED_SIGNATURE_TYPE                 155
 637 # define RSA_R_VALUE_MISSING                              147
 638 # define RSA_R_WRONG_SIGNATURE_LENGTH                     119
 639
 640 #ifdef  __cplusplus
 641 }
 642 #endif
 643 #endif