include/openssl/rsa.h

   1 /*
   2  * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef OPENSSL_RSA_H
  11 # define OPENSSL_RSA_H
  12 # pragma once
  13
  14 # include <openssl/macros.h>
  15 # ifndef OPENSSL_NO_DEPRECATED_3_0
  16 #  define HEADER_RSA_H
  17 # endif
  18
  19 # include <openssl/opensslconf.h>
  20
  21 # include <openssl/asn1.h>
  22 # include <openssl/bio.h>
  23 # include <openssl/crypto.h>
  24 # include <openssl/types.h>
  25 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
  26 #  include <openssl/bn.h>
  27 # endif
  28 # include <openssl/rsaerr.h>
  29 # include <openssl/safestack.h>
  30 # ifndef OPENSSL_NO_STDIO
  31 #  include <stdio.h>
  32 # endif
  33
  34 # ifdef  __cplusplus
  35 extern "C" {
  36 # endif
  37
  38 # ifndef OPENSSL_RSA_MAX_MODULUS_BITS
  39 #  define OPENSSL_RSA_MAX_MODULUS_BITS   16384
  40 # endif
  41
  42 # define RSA_3   0x3L
  43 # define RSA_F4  0x10001L
  44
  45 # ifndef OPENSSL_NO_DEPRECATED_3_0
  46 /* The types RSA and RSA_METHOD are defined in ossl_typ.h */
  47
  48 #  define OPENSSL_RSA_FIPS_MIN_MODULUS_BITS 2048
  49
  50 #  ifndef OPENSSL_RSA_SMALL_MODULUS_BITS
  51 #   define OPENSSL_RSA_SMALL_MODULUS_BITS 3072
  52 #  endif
  53
  54 /* exponent limit enforced for "large" modulus only */
  55 #  ifndef OPENSSL_RSA_MAX_PUBEXP_BITS
  56 #   define OPENSSL_RSA_MAX_PUBEXP_BITS    64
  57 #  endif
  58 /* based on RFC 8017 appendix A.1.2 */
  59 #  define RSA_ASN1_VERSION_DEFAULT        0
  60 #  define RSA_ASN1_VERSION_MULTI          1
  61
  62 #  define RSA_DEFAULT_PRIME_NUM           2
  63
  64 #  define RSA_METHOD_FLAG_NO_CHECK        0x0001
  65 #  define RSA_FLAG_CACHE_PUBLIC           0x0002
  66 #  define RSA_FLAG_CACHE_PRIVATE          0x0004
  67 #  define RSA_FLAG_BLINDING               0x0008
  68 #  define RSA_FLAG_THREAD_SAFE            0x0010
  69 /*
  70  * This flag means the private key operations will be handled by rsa_mod_exp
  71  * and that they do not depend on the private key components being present:
  72  * for example a key stored in external hardware. Without this flag
  73  * bn_mod_exp gets called when private key components are absent.
  74  */
  75 #  define RSA_FLAG_EXT_PKEY               0x0020
  76
  77 /*
  78  * new with 0.9.6j and 0.9.7b; the built-in
  79  * RSA implementation now uses blinding by
  80  * default (ignoring RSA_FLAG_BLINDING),
  81  * but other engines might not need it
  82  */
  83 #  define RSA_FLAG_NO_BLINDING            0x0080
  84 # endif /* OPENSSL_NO_DEPRECATED_3_0 */
  85 /*
  86  * Does nothing. Previously this switched off constant time behaviour.
  87  */
  88 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
  89 #  define RSA_FLAG_NO_CONSTTIME           0x0000
  90 # endif
  91 /* deprecated name for the flag*/
  92 /*
  93  * new with 0.9.7h; the built-in RSA
  94  * implementation now uses constant time
  95  * modular exponentiation for secret exponents
  96  * by default. This flag causes the
  97  * faster variable sliding window method to
  98  * be used for all exponents.
  99  */
 100 # ifndef OPENSSL_NO_DEPRECATED_0_9_8
 101 #  define RSA_FLAG_NO_EXP_CONSTTIME RSA_FLAG_NO_CONSTTIME
 102 # endif
 103
 104 /*-
 105  * New with 3.0: use part of the flags to denote exact type of RSA key,
 106  * some of which are limited to specific signature and encryption schemes.
 107  * These different types share the same RSA structure, but indicate the
 108  * use of certain fields in that structure.
 109  * Currently known are:
 110  * RSA          - this is the "normal" unlimited RSA structure (typenum 0)
 111  * RSASSA-PSS   - indicates that the PSS parameters are used.
 112  * RSAES-OAEP   - no specific field used for the moment, but OAEP padding
 113  *                is expected.  (currently unused)
 114  *
 115  * 4 bits allow for 16 types
 116  */
 117 # define RSA_FLAG_TYPE_MASK            0xF000
 118 # define RSA_FLAG_TYPE_RSA             0x0000
 119 # define RSA_FLAG_TYPE_RSASSAPSS       0x1000
 120 # define RSA_FLAG_TYPE_RSAESOAEP       0x2000
 121
 122 int EVP_PKEY_CTX_set_rsa_padding(EVP_PKEY_CTX *ctx, int pad_mode);
 123 int EVP_PKEY_CTX_get_rsa_padding(EVP_PKEY_CTX *ctx, int *pad_mode);
 124
 125 int EVP_PKEY_CTX_set_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int saltlen);
 126 int EVP_PKEY_CTX_get_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int *saltlen);
 127
 128 int EVP_PKEY_CTX_set_rsa_keygen_bits(EVP_PKEY_CTX *ctx, int bits);
 129 int EVP_PKEY_CTX_set1_rsa_keygen_pubexp(EVP_PKEY_CTX *ctx, BIGNUM *pubexp);
 130 int EVP_PKEY_CTX_set_rsa_keygen_primes(EVP_PKEY_CTX *ctx, int primes);
 131 int EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen(EVP_PKEY_CTX *ctx, int saltlen);
 132 # ifndef OPENSSL_NO_DEPRECATED_3_0
 133 OSSL_DEPRECATEDIN_3_0
 134 int EVP_PKEY_CTX_set_rsa_keygen_pubexp(EVP_PKEY_CTX *ctx, BIGNUM *pubexp);
 135 # endif
 136
 137 /* Salt length matches digest */
 138 # define RSA_PSS_SALTLEN_DIGEST -1
 139 /* Verify only: auto detect salt length */
 140 # define RSA_PSS_SALTLEN_AUTO   -2
 141 /* Set salt length to maximum possible */
 142 # define RSA_PSS_SALTLEN_MAX    -3
 143 /* Old compatible max salt length for sign only */
 144 # define RSA_PSS_SALTLEN_MAX_SIGN    -2
 145
 146 int EVP_PKEY_CTX_set_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
 147 int EVP_PKEY_CTX_set_rsa_mgf1_md_name(EVP_PKEY_CTX *ctx, const char *mdname,
 148                                       const char *mdprops);
 149 int EVP_PKEY_CTX_get_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD **md);
 150 int EVP_PKEY_CTX_get_rsa_mgf1_md_name(EVP_PKEY_CTX *ctx, char *name,
 151                                       size_t namelen);
 152 int EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
 153 int EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md_name(EVP_PKEY_CTX *ctx,
 154                                                  const char *mdname);
 155
 156 int EVP_PKEY_CTX_set_rsa_pss_keygen_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
 157 int EVP_PKEY_CTX_set_rsa_pss_keygen_md_name(EVP_PKEY_CTX *ctx,
 158                                             const char *mdname,
 159                                             const char *mdprops);
 160
 161 int EVP_PKEY_CTX_set_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
 162 int EVP_PKEY_CTX_set_rsa_oaep_md_name(EVP_PKEY_CTX *ctx, const char *mdname,
 163                                       const char *mdprops);
 164 int EVP_PKEY_CTX_get_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD **md);
 165 int EVP_PKEY_CTX_get_rsa_oaep_md_name(EVP_PKEY_CTX *ctx, char *name,
 166                                       size_t namelen);
 167 int EVP_PKEY_CTX_set0_rsa_oaep_label(EVP_PKEY_CTX *ctx, void *label, int llen);
 168 int EVP_PKEY_CTX_get0_rsa_oaep_label(EVP_PKEY_CTX *ctx, unsigned char **label);
 169
 170 # define EVP_PKEY_CTRL_RSA_PADDING       (EVP_PKEY_ALG_CTRL + 1)
 171 # define EVP_PKEY_CTRL_RSA_PSS_SALTLEN   (EVP_PKEY_ALG_CTRL + 2)
 172
 173 # define EVP_PKEY_CTRL_RSA_KEYGEN_BITS   (EVP_PKEY_ALG_CTRL + 3)
 174 # define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 4)
 175 # define EVP_PKEY_CTRL_RSA_MGF1_MD       (EVP_PKEY_ALG_CTRL + 5)
 176
 177 # define EVP_PKEY_CTRL_GET_RSA_PADDING           (EVP_PKEY_ALG_CTRL + 6)
 178 # define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN       (EVP_PKEY_ALG_CTRL + 7)
 179 # define EVP_PKEY_CTRL_GET_RSA_MGF1_MD           (EVP_PKEY_ALG_CTRL + 8)
 180
 181 # define EVP_PKEY_CTRL_RSA_OAEP_MD       (EVP_PKEY_ALG_CTRL + 9)
 182 # define EVP_PKEY_CTRL_RSA_OAEP_LABEL    (EVP_PKEY_ALG_CTRL + 10)
 183
 184 # define EVP_PKEY_CTRL_GET_RSA_OAEP_MD   (EVP_PKEY_ALG_CTRL + 11)
 185 # define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12)
 186
 187 # define EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES  (EVP_PKEY_ALG_CTRL + 13)
 188
 189 # define RSA_PKCS1_PADDING          1
 190 # define RSA_NO_PADDING             3
 191 # define RSA_PKCS1_OAEP_PADDING     4
 192 # define RSA_X931_PADDING           5
 193
 194 /* EVP_PKEY_ only */
 195 # define RSA_PKCS1_PSS_PADDING      6
 196 # define RSA_PKCS1_WITH_TLS_PADDING 7
 197
 198 # define RSA_PKCS1_PADDING_SIZE    11
 199
 200 # define RSA_set_app_data(s,arg)         RSA_set_ex_data(s,0,arg)
 201 # define RSA_get_app_data(s)             RSA_get_ex_data(s,0)
 202
 203 # ifndef OPENSSL_NO_DEPRECATED_3_0
 204 OSSL_DEPRECATEDIN_3_0 RSA *RSA_new(void);
 205 OSSL_DEPRECATEDIN_3_0 RSA *RSA_new_method(ENGINE *engine);
 206 OSSL_DEPRECATEDIN_3_0 int RSA_bits(const RSA *rsa);
 207 OSSL_DEPRECATEDIN_3_0 int RSA_size(const RSA *rsa);
 208 OSSL_DEPRECATEDIN_3_0 int RSA_security_bits(const RSA *rsa);
 209
 210 OSSL_DEPRECATEDIN_3_0 int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d);
 211 OSSL_DEPRECATEDIN_3_0 int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q);
 212 OSSL_DEPRECATEDIN_3_0 int RSA_set0_crt_params(RSA *r,
 213                                               BIGNUM *dmp1, BIGNUM *dmq1,
 214                                               BIGNUM *iqmp);
 215 OSSL_DEPRECATEDIN_3_0 int RSA_set0_multi_prime_params(RSA *r,
 216                                                       BIGNUM *primes[],
 217                                                       BIGNUM *exps[],
 218                                                       BIGNUM *coeffs[],
 219                                                       int pnum);
 220 OSSL_DEPRECATEDIN_3_0 void RSA_get0_key(const RSA *r,
 221                                         const BIGNUM **n, const BIGNUM **e,
 222                                         const BIGNUM **d);
 223 OSSL_DEPRECATEDIN_3_0 void RSA_get0_factors(const RSA *r,
 224                                             const BIGNUM **p, const BIGNUM **q);
 225 OSSL_DEPRECATEDIN_3_0 int RSA_get_multi_prime_extra_count(const RSA *r);
 226 OSSL_DEPRECATEDIN_3_0 int RSA_get0_multi_prime_factors(const RSA *r,
 227                                                        const BIGNUM *primes[]);
 228 OSSL_DEPRECATEDIN_3_0 void RSA_get0_crt_params(const RSA *r,
 229                                                const BIGNUM **dmp1,
 230                                                const BIGNUM **dmq1,
 231                                                const BIGNUM **iqmp);
 232 OSSL_DEPRECATEDIN_3_0
 233 int RSA_get0_multi_prime_crt_params(const RSA *r, const BIGNUM *exps[],
 234                                     const BIGNUM *coeffs[]);
 235 OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_n(const RSA *d);
 236 OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_e(const RSA *d);
 237 OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_d(const RSA *d);
 238 OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_p(const RSA *d);
 239 OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_q(const RSA *d);
 240 OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_dmp1(const RSA *r);
 241 OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_dmq1(const RSA *r);
 242 OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_iqmp(const RSA *r);
 243 OSSL_DEPRECATEDIN_3_0 const RSA_PSS_PARAMS *RSA_get0_pss_params(const RSA *r);
 244 OSSL_DEPRECATEDIN_3_0 void RSA_clear_flags(RSA *r, int flags);
 245 OSSL_DEPRECATEDIN_3_0 int RSA_test_flags(const RSA *r, int flags);
 246 OSSL_DEPRECATEDIN_3_0 void RSA_set_flags(RSA *r, int flags);
 247 OSSL_DEPRECATEDIN_3_0 int RSA_get_version(RSA *r);
 248 OSSL_DEPRECATEDIN_3_0 ENGINE *RSA_get0_engine(const RSA *r);
 249 # endif  /* !OPENSSL_NO_DEPRECATED_3_0 */
 250
 251 # define EVP_RSA_gen(bits) \
 252     EVP_PKEY_Q_keygen(NULL, NULL, "RSA", (size_t)(0 + (bits)))
 253
 254 /* Deprecated version */
 255 # ifndef OPENSSL_NO_DEPRECATED_0_9_8
 256 OSSL_DEPRECATEDIN_0_9_8 RSA *RSA_generate_key(int bits, unsigned long e, void
 257                                               (*callback) (int, int, void *),
 258                                               void *cb_arg);
 259 # endif
 260
 261 /* New version */
 262 # ifndef OPENSSL_NO_DEPRECATED_3_0
 263 OSSL_DEPRECATEDIN_3_0 int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e,
 264                                               BN_GENCB *cb);
 265 /* Multi-prime version */
 266 OSSL_DEPRECATEDIN_3_0 int RSA_generate_multi_prime_key(RSA *rsa, int bits,
 267                                                        int primes, BIGNUM *e,
 268                                                        BN_GENCB *cb);
 269
 270 OSSL_DEPRECATEDIN_3_0
 271 int RSA_X931_derive_ex(RSA *rsa, BIGNUM *p1, BIGNUM *p2,
 272                        BIGNUM *q1, BIGNUM *q2,
 273                        const BIGNUM *Xp1, const BIGNUM *Xp2,
 274                        const BIGNUM *Xp, const BIGNUM *Xq1,
 275                        const BIGNUM *Xq2, const BIGNUM *Xq,
 276                        const BIGNUM *e, BN_GENCB *cb);
 277 OSSL_DEPRECATEDIN_3_0 int RSA_X931_generate_key_ex(RSA *rsa, int bits,
 278                                                    const BIGNUM *e,
 279                                                    BN_GENCB *cb);
 280
 281 OSSL_DEPRECATEDIN_3_0 int RSA_check_key(const RSA *);
 282 OSSL_DEPRECATEDIN_3_0 int RSA_check_key_ex(const RSA *, BN_GENCB *cb);
 283         /* next 4 return -1 on error */
 284 OSSL_DEPRECATEDIN_3_0
 285 int RSA_public_encrypt(int flen, const unsigned char *from, unsigned char *to,
 286                        RSA *rsa, int padding);
 287 OSSL_DEPRECATEDIN_3_0
 288 int RSA_private_encrypt(int flen, const unsigned char *from, unsigned char *to,
 289                         RSA *rsa, int padding);
 290 OSSL_DEPRECATEDIN_3_0
 291 int RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to,
 292                        RSA *rsa, int padding);
 293 OSSL_DEPRECATEDIN_3_0
 294 int RSA_private_decrypt(int flen, const unsigned char *from, unsigned char *to,
 295                         RSA *rsa, int padding);
 296 OSSL_DEPRECATEDIN_3_0 void RSA_free(RSA *r);
 297 /* "up" the RSA object's reference count */
 298 OSSL_DEPRECATEDIN_3_0 int RSA_up_ref(RSA *r);
 299 OSSL_DEPRECATEDIN_3_0 int RSA_flags(const RSA *r);
 300
 301 OSSL_DEPRECATEDIN_3_0 void RSA_set_default_method(const RSA_METHOD *meth);
 302 OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_get_default_method(void);
 303 OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_null_method(void);
 304 OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_get_method(const RSA *rsa);
 305 OSSL_DEPRECATEDIN_3_0 int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);
 306
 307 /* these are the actual RSA functions */
 308 OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_PKCS1_OpenSSL(void);
 309
 310 DECLARE_ASN1_ENCODE_FUNCTIONS_name_attr(OSSL_DEPRECATEDIN_3_0,
 311                                         RSA, RSAPublicKey)
 312 DECLARE_ASN1_ENCODE_FUNCTIONS_name_attr(OSSL_DEPRECATEDIN_3_0,
 313                                         RSA, RSAPrivateKey)
 314 # endif  /* !OPENSSL_NO_DEPRECATED_3_0 */
 315
 316 int RSA_pkey_ctx_ctrl(EVP_PKEY_CTX *ctx, int optype, int cmd, int p1, void *p2);
 317
 318 struct rsa_pss_params_st {
 319     X509_ALGOR *hashAlgorithm;
 320     X509_ALGOR *maskGenAlgorithm;
 321     ASN1_INTEGER *saltLength;
 322     ASN1_INTEGER *trailerField;
 323     /* Decoded hash algorithm from maskGenAlgorithm */
 324     X509_ALGOR *maskHash;
 325 };
 326
 327 DECLARE_ASN1_FUNCTIONS(RSA_PSS_PARAMS)
 328 DECLARE_ASN1_DUP_FUNCTION(RSA_PSS_PARAMS)
 329
 330 typedef struct rsa_oaep_params_st {
 331     X509_ALGOR *hashFunc;
 332     X509_ALGOR *maskGenFunc;
 333     X509_ALGOR *pSourceFunc;
 334     /* Decoded hash algorithm from maskGenFunc */
 335     X509_ALGOR *maskHash;
 336 } RSA_OAEP_PARAMS;
 337
 338 DECLARE_ASN1_FUNCTIONS(RSA_OAEP_PARAMS)
 339
 340 # ifndef OPENSSL_NO_DEPRECATED_3_0
 341 #  ifndef OPENSSL_NO_STDIO
 342 OSSL_DEPRECATEDIN_3_0 int RSA_print_fp(FILE *fp, const RSA *r, int offset);
 343 #  endif
 344
 345 OSSL_DEPRECATEDIN_3_0 int RSA_print(BIO *bp, const RSA *r, int offset);
 346
 347 /*
 348  * The following 2 functions sign and verify a X509_SIG ASN1 object inside
 349  * PKCS#1 padded RSA encryption
 350  */
 351 OSSL_DEPRECATEDIN_3_0 int RSA_sign(int type, const unsigned char *m,
 352                                    unsigned int m_length, unsigned char *sigret,
 353                                    unsigned int *siglen, RSA *rsa);
 354 OSSL_DEPRECATEDIN_3_0 int RSA_verify(int type, const unsigned char *m,
 355                                      unsigned int m_length,
 356                                      const unsigned char *sigbuf,
 357                                      unsigned int siglen, RSA *rsa);
 358
 359 /*
 360  * The following 2 function sign and verify a ASN1_OCTET_STRING object inside
 361  * PKCS#1 padded RSA encryption
 362  */
 363 OSSL_DEPRECATEDIN_3_0
 364 int RSA_sign_ASN1_OCTET_STRING(int type,
 365                                const unsigned char *m, unsigned int m_length,
 366                                unsigned char *sigret, unsigned int *siglen,
 367                                RSA *rsa);
 368 OSSL_DEPRECATEDIN_3_0
 369 int RSA_verify_ASN1_OCTET_STRING(int type,
 370                                  const unsigned char *m, unsigned int m_length,
 371                                  unsigned char *sigbuf, unsigned int siglen,
 372                                  RSA *rsa);
 373
 374 OSSL_DEPRECATEDIN_3_0 int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
 375 OSSL_DEPRECATEDIN_3_0 void RSA_blinding_off(RSA *rsa);
 376 OSSL_DEPRECATEDIN_3_0 BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);
 377
 378 OSSL_DEPRECATEDIN_3_0
 379 int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen,
 380                                  const unsigned char *f, int fl);
 381 OSSL_DEPRECATEDIN_3_0
 382 int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen,
 383                                    const unsigned char *f, int fl,
 384                                    int rsa_len);
 385 OSSL_DEPRECATEDIN_3_0
 386 int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen,
 387                                  const unsigned char *f, int fl);
 388 OSSL_DEPRECATEDIN_3_0
 389 int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen,
 390                                    const unsigned char *f, int fl,
 391                                    int rsa_len);
 392 OSSL_DEPRECATEDIN_3_0 int PKCS1_MGF1(unsigned char *mask, long len,
 393                                      const unsigned char *seed, long seedlen,
 394                                      const EVP_MD *dgst);
 395 OSSL_DEPRECATEDIN_3_0
 396 int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen,
 397                                const unsigned char *f, int fl,
 398                                const unsigned char *p, int pl);
 399 OSSL_DEPRECATEDIN_3_0
 400 int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen,
 401                                  const unsigned char *f, int fl, int rsa_len,
 402                                  const unsigned char *p, int pl);
 403 OSSL_DEPRECATEDIN_3_0
 404 int RSA_padding_add_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
 405                                     const unsigned char *from, int flen,
 406                                     const unsigned char *param, int plen,
 407                                     const EVP_MD *md, const EVP_MD *mgf1md);
 408 OSSL_DEPRECATEDIN_3_0
 409 int RSA_padding_check_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
 410                                       const unsigned char *from, int flen,
 411                                       int num,
 412                                       const unsigned char *param, int plen,
 413                                       const EVP_MD *md, const EVP_MD *mgf1md);
 414 OSSL_DEPRECATEDIN_3_0 int RSA_padding_add_none(unsigned char *to, int tlen,
 415                                                const unsigned char *f, int fl);
 416 OSSL_DEPRECATEDIN_3_0 int RSA_padding_check_none(unsigned char *to, int tlen,
 417                                                  const unsigned char *f, int fl,
 418                                                  int rsa_len);
 419 OSSL_DEPRECATEDIN_3_0 int RSA_padding_add_X931(unsigned char *to, int tlen,
 420                                                const unsigned char *f, int fl);
 421 OSSL_DEPRECATEDIN_3_0 int RSA_padding_check_X931(unsigned char *to, int tlen,
 422                                                  const unsigned char *f, int fl,
 423                                                  int rsa_len);
 424 OSSL_DEPRECATEDIN_3_0 int RSA_X931_hash_id(int nid);
 425
 426 OSSL_DEPRECATEDIN_3_0
 427 int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
 428                          const EVP_MD *Hash, const unsigned char *EM,
 429                          int sLen);
 430 OSSL_DEPRECATEDIN_3_0
 431 int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
 432                               const unsigned char *mHash, const EVP_MD *Hash,
 433                               int sLen);
 434
 435 OSSL_DEPRECATEDIN_3_0
 436 int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
 437                               const EVP_MD *Hash, const EVP_MD *mgf1Hash,
 438                               const unsigned char *EM, int sLen);
 439
 440 OSSL_DEPRECATEDIN_3_0
 441 int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
 442                                    const unsigned char *mHash,
 443                                    const EVP_MD *Hash, const EVP_MD *mgf1Hash,
 444                                    int sLen);
 445
 446 # define RSA_get_ex_new_index(l, p, newf, dupf, freef) \
 447     CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, l, p, newf, dupf, freef)
 448 OSSL_DEPRECATEDIN_3_0 int RSA_set_ex_data(RSA *r, int idx, void *arg);
 449 OSSL_DEPRECATEDIN_3_0 void *RSA_get_ex_data(const RSA *r, int idx);
 450
 451 DECLARE_ASN1_DUP_FUNCTION_name_attr(OSSL_DEPRECATEDIN_3_0, RSA, RSAPublicKey)
 452 DECLARE_ASN1_DUP_FUNCTION_name_attr(OSSL_DEPRECATEDIN_3_0, RSA, RSAPrivateKey)
 453
 454 /*
 455  * If this flag is set the RSA method is FIPS compliant and can be used in
 456  * FIPS mode. This is set in the validated module method. If an application
 457  * sets this flag in its own methods it is its responsibility to ensure the
 458  * result is compliant.
 459  */
 460
 461 #  define RSA_FLAG_FIPS_METHOD                    0x0400
 462
 463 /*
 464  * If this flag is set the operations normally disabled in FIPS mode are
 465  * permitted it is then the applications responsibility to ensure that the
 466  * usage is compliant.
 467  */
 468
 469 #  define RSA_FLAG_NON_FIPS_ALLOW                 0x0400
 470 /*
 471  * Application has decided PRNG is good enough to generate a key: don't
 472  * check.
 473  */
 474 #  define RSA_FLAG_CHECKED                        0x0800
 475
 476 OSSL_DEPRECATEDIN_3_0 RSA_METHOD *RSA_meth_new(const char *name, int flags);
 477 OSSL_DEPRECATEDIN_3_0 void RSA_meth_free(RSA_METHOD *meth);
 478 OSSL_DEPRECATEDIN_3_0 RSA_METHOD *RSA_meth_dup(const RSA_METHOD *meth);
 479 OSSL_DEPRECATEDIN_3_0 const char *RSA_meth_get0_name(const RSA_METHOD *meth);
 480 OSSL_DEPRECATEDIN_3_0 int RSA_meth_set1_name(RSA_METHOD *meth,
 481                                              const char *name);
 482 OSSL_DEPRECATEDIN_3_0 int RSA_meth_get_flags(const RSA_METHOD *meth);
 483 OSSL_DEPRECATEDIN_3_0 int RSA_meth_set_flags(RSA_METHOD *meth, int flags);
 484 OSSL_DEPRECATEDIN_3_0 void *RSA_meth_get0_app_data(const RSA_METHOD *meth);
 485 OSSL_DEPRECATEDIN_3_0 int RSA_meth_set0_app_data(RSA_METHOD *meth,
 486                                                  void *app_data);
 487 OSSL_DEPRECATEDIN_3_0
 488 int (*RSA_meth_get_pub_enc(const RSA_METHOD *meth)) (int flen,
 489                                                      const unsigned char *from,
 490                                                      unsigned char *to,
 491                                                      RSA *rsa, int padding);
 492 OSSL_DEPRECATEDIN_3_0
 493 int RSA_meth_set_pub_enc(RSA_METHOD *rsa,
 494                          int (*pub_enc) (int flen, const unsigned char *from,
 495                                          unsigned char *to, RSA *rsa,
 496                                          int padding));
 497 OSSL_DEPRECATEDIN_3_0
 498 int (*RSA_meth_get_pub_dec(const RSA_METHOD *meth)) (int flen,
 499                                                      const unsigned char *from,
 500                                                      unsigned char *to,
 501                                                      RSA *rsa, int padding);
 502 OSSL_DEPRECATEDIN_3_0
 503 int RSA_meth_set_pub_dec(RSA_METHOD *rsa,
 504                          int (*pub_dec) (int flen, const unsigned char *from,
 505                                          unsigned char *to, RSA *rsa,
 506                                          int padding));
 507 OSSL_DEPRECATEDIN_3_0
 508 int (*RSA_meth_get_priv_enc(const RSA_METHOD *meth)) (int flen,
 509                                                       const unsigned char *from,
 510                                                       unsigned char *to,
 511                                                       RSA *rsa, int padding);
 512 OSSL_DEPRECATEDIN_3_0
 513 int RSA_meth_set_priv_enc(RSA_METHOD *rsa,
 514                           int (*priv_enc) (int flen, const unsigned char *from,
 515                                            unsigned char *to, RSA *rsa,
 516                                            int padding));
 517 OSSL_DEPRECATEDIN_3_0
 518 int (*RSA_meth_get_priv_dec(const RSA_METHOD *meth)) (int flen,
 519                                                       const unsigned char *from,
 520                                                       unsigned char *to,
 521                                                       RSA *rsa, int padding);
 522 OSSL_DEPRECATEDIN_3_0
 523 int RSA_meth_set_priv_dec(RSA_METHOD *rsa,
 524                           int (*priv_dec) (int flen, const unsigned char *from,
 525                                            unsigned char *to, RSA *rsa,
 526                                            int padding));
 527 OSSL_DEPRECATEDIN_3_0
 528 int (*RSA_meth_get_mod_exp(const RSA_METHOD *meth)) (BIGNUM *r0,
 529                                                      const BIGNUM *i,
 530                                                      RSA *rsa, BN_CTX *ctx);
 531 OSSL_DEPRECATEDIN_3_0
 532 int RSA_meth_set_mod_exp(RSA_METHOD *rsa,
 533                          int (*mod_exp) (BIGNUM *r0, const BIGNUM *i, RSA *rsa,
 534                                          BN_CTX *ctx));
 535 OSSL_DEPRECATEDIN_3_0
 536 int (*RSA_meth_get_bn_mod_exp(const RSA_METHOD *meth)) (BIGNUM *r,
 537                                                         const BIGNUM *a,
 538                                                         const BIGNUM *p,
 539                                                         const BIGNUM *m,
 540                                                         BN_CTX *ctx,
 541                                                         BN_MONT_CTX *m_ctx);
 542 OSSL_DEPRECATEDIN_3_0
 543 int RSA_meth_set_bn_mod_exp(RSA_METHOD *rsa,
 544                             int (*bn_mod_exp) (BIGNUM *r,
 545                                                const BIGNUM *a,
 546                                                const BIGNUM *p,
 547                                                const BIGNUM *m,
 548                                                BN_CTX *ctx,
 549                                                BN_MONT_CTX *m_ctx));
 550 OSSL_DEPRECATEDIN_3_0
 551 int (*RSA_meth_get_init(const RSA_METHOD *meth)) (RSA *rsa);
 552 OSSL_DEPRECATEDIN_3_0
 553 int RSA_meth_set_init(RSA_METHOD *rsa, int (*init) (RSA *rsa));
 554 OSSL_DEPRECATEDIN_3_0
 555 int (*RSA_meth_get_finish(const RSA_METHOD *meth)) (RSA *rsa);
 556 OSSL_DEPRECATEDIN_3_0
 557 int RSA_meth_set_finish(RSA_METHOD *rsa, int (*finish) (RSA *rsa));
 558 OSSL_DEPRECATEDIN_3_0
 559 int (*RSA_meth_get_sign(const RSA_METHOD *meth)) (int type,
 560                                                   const unsigned char *m,
 561                                                   unsigned int m_length,
 562                                                   unsigned char *sigret,
 563                                                   unsigned int *siglen,
 564                                                   const RSA *rsa);
 565 OSSL_DEPRECATEDIN_3_0
 566 int RSA_meth_set_sign(RSA_METHOD *rsa,
 567                       int (*sign) (int type, const unsigned char *m,
 568                                    unsigned int m_length,
 569                                    unsigned char *sigret, unsigned int *siglen,
 570                                    const RSA *rsa));
 571 OSSL_DEPRECATEDIN_3_0
 572 int (*RSA_meth_get_verify(const RSA_METHOD *meth)) (int dtype,
 573                                                     const unsigned char *m,
 574                                                     unsigned int m_length,
 575                                                     const unsigned char *sigbuf,
 576                                                     unsigned int siglen,
 577                                                     const RSA *rsa);
 578 OSSL_DEPRECATEDIN_3_0
 579 int RSA_meth_set_verify(RSA_METHOD *rsa,
 580                         int (*verify) (int dtype, const unsigned char *m,
 581                                        unsigned int m_length,
 582                                        const unsigned char *sigbuf,
 583                                        unsigned int siglen, const RSA *rsa));
 584 OSSL_DEPRECATEDIN_3_0
 585 int (*RSA_meth_get_keygen(const RSA_METHOD *meth)) (RSA *rsa, int bits,
 586                                                     BIGNUM *e, BN_GENCB *cb);
 587 OSSL_DEPRECATEDIN_3_0
 588 int RSA_meth_set_keygen(RSA_METHOD *rsa,
 589                         int (*keygen) (RSA *rsa, int bits, BIGNUM *e,
 590                                        BN_GENCB *cb));
 591 OSSL_DEPRECATEDIN_3_0
 592 int (*RSA_meth_get_multi_prime_keygen(const RSA_METHOD *meth)) (RSA *rsa,
 593                                                                 int bits,
 594                                                                 int primes,
 595                                                                 BIGNUM *e,
 596                                                                 BN_GENCB *cb);
 597 OSSL_DEPRECATEDIN_3_0
 598 int RSA_meth_set_multi_prime_keygen(RSA_METHOD *meth,
 599                                     int (*keygen) (RSA *rsa, int bits,
 600                                                    int primes, BIGNUM *e,
 601                                                    BN_GENCB *cb));
 602 #endif  /* !OPENSSL_NO_DEPRECATED_3_0 */
 603
 604 # ifdef  __cplusplus
 605 }
 606 # endif
 607 #endif