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21dcbebc 1/*
a28d06f3 2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6 3 *
48f4ad77 4 * Licensed under the Apache License 2.0 (the "License"). You may not use
21dcbebc
RS		 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
d02b48c6
RE		 8 */
9
ae4186b0
DMSP		 10#ifndef OPENSSL_RSA_H
11# define OPENSSL_RSA_H
d86167ec
DMSP		 12# pragma once
13
14# include <openssl/macros.h>
936c2b9e 15# ifndef OPENSSL_NO_DEPRECATED_3_0
d86167ec
DMSP		 16# define HEADER_RSA_H
17# endif
d02b48c6 18
98186eb4 19# include <openssl/opensslconf.h>
78d3b819 20
3a1ee3c1
RL		 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>
f93107d8 30
3a1ee3c1 31# ifdef __cplusplus
82271cee 32extern "C" {
3a1ee3c1 33# endif
03f8b042 34
3a1ee3c1
RL		 35# ifndef OPENSSL_RSA_MAX_MODULUS_BITS
36# define OPENSSL_RSA_MAX_MODULUS_BITS 16384
37# endif
0f113f3e 38
3a1ee3c1
RL		 39# define RSA_3 0x3L
40# define RSA_F4 0x10001L
d7e498ac 41
3a1ee3c1 42# ifndef OPENSSL_NO_DEPRECATED_3_0
c5f87134 43/* The types RSA and RSA_METHOD are defined in ossl_typ.h */
0f113f3e 44
3a1ee3c1 45# define OPENSSL_RSA_FIPS_MIN_MODULUS_BITS 2048
c5f87134 46
3a1ee3c1
RL		 47# ifndef OPENSSL_RSA_SMALL_MODULUS_BITS
48# define OPENSSL_RSA_SMALL_MODULUS_BITS 3072
49# endif
dbd87ffc
MC		 50
51/* exponent limit enforced for "large" modulus only */
3a1ee3c1
RL		 52# ifndef OPENSSL_RSA_MAX_PUBEXP_BITS
53# define OPENSSL_RSA_MAX_PUBEXP_BITS 64
54# endif
665d899f 55/* based on RFC 8017 appendix A.1.2 */
3a1ee3c1
RL		 56# define RSA_ASN1_VERSION_DEFAULT 0
57# define RSA_ASN1_VERSION_MULTI 1
665d899f 58
3a1ee3c1 59# define RSA_DEFAULT_PRIME_NUM 2
665d899f 60
3a1ee3c1
RL		 61# define RSA_METHOD_FLAG_NO_CHECK 0x0001
62# define RSA_FLAG_CACHE_PUBLIC 0x0002
63# define RSA_FLAG_CACHE_PRIVATE 0x0004
64# define RSA_FLAG_BLINDING 0x0008
65# define RSA_FLAG_THREAD_SAFE 0x0010
0f113f3e
MC		 66/*
67 * This flag means the private key operations will be handled by rsa_mod_exp
770d19b8 68 * and that they do not depend on the private key components being present:
0f113f3e
MC		 69 * for example a key stored in external hardware. Without this flag
70 * bn_mod_exp gets called when private key components are absent.
770d19b8 71 */
3a1ee3c1 72# define RSA_FLAG_EXT_PKEY 0x0020
58964a49 73
dbd87ffc
MC		 74/*
75 * new with 0.9.6j and 0.9.7b; the built-in
76 * RSA implementation now uses blinding by
77 * default (ignoring RSA_FLAG_BLINDING),
78 * but other engines might not need it
79 */
3a1ee3c1
RL		 80# define RSA_FLAG_NO_BLINDING 0x0080
81# endif /* OPENSSL_NO_DEPRECATED_3_0 */
dbd87ffc 82/*
5584f65a 83 * Does nothing. Previously this switched off constant time behaviour.
0f113f3e 84 */
3a1ee3c1
RL		 85# ifndef OPENSSL_NO_DEPRECATED_1_1_0
86# define RSA_FLAG_NO_CONSTTIME 0x0000
87# endif
dbd87ffc
MC		 88/* deprecated name for the flag*/
89/*
90 * new with 0.9.7h; the built-in RSA
91 * implementation now uses constant time
92 * modular exponentiation for secret exponents
93 * by default. This flag causes the
94 * faster variable sliding window method to
95 * be used for all exponents.
96 */
3a1ee3c1
RL		 97# ifndef OPENSSL_NO_DEPRECATED_0_9_8
98# define RSA_FLAG_NO_EXP_CONSTTIME RSA_FLAG_NO_CONSTTIME
99# endif
0f113f3e 100
484d1a73
RL		 101/*-
102 * New with 3.0: use part of the flags to denote exact type of RSA key,
103 * some of which are limited to specific signature and encryption schemes.
104 * These different types share the same RSA structure, but indicate the
105 * use of certain fields in that structure.
106 * Currently known are:
107 * RSA - this is the "normal" unlimited RSA structure (typenum 0)
108 * RSASSA-PSS - indicates that the PSS parameters are used.
109 * RSAES-OAEP - no specific field used for the moment, but OAEP padding
110 * is expected. (currently unused)
111 *
112 * 4 bits allow for 16 types
113 */
3a1ee3c1
RL		 114# define RSA_FLAG_TYPE_MASK 0xF000
115# define RSA_FLAG_TYPE_RSA 0x0000
116# define RSA_FLAG_TYPE_RSASSAPSS 0x1000
117# define RSA_FLAG_TYPE_RSAESOAEP 0x2000
484d1a73 118
89abd1b6
MC		 119int EVP_PKEY_CTX_set_rsa_padding(EVP_PKEY_CTX *ctx, int pad_mode);
120int EVP_PKEY_CTX_get_rsa_padding(EVP_PKEY_CTX *ctx, int *pad_mode);
0f113f3e 121
6f4b7663
RL		 122int EVP_PKEY_CTX_set_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int saltlen);
123int EVP_PKEY_CTX_get_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int *saltlen);
124
2972af10 125int EVP_PKEY_CTX_set_rsa_keygen_bits(EVP_PKEY_CTX *ctx, int bits);
3786d748 126int EVP_PKEY_CTX_set1_rsa_keygen_pubexp(EVP_PKEY_CTX *ctx, BIGNUM *pubexp);
2972af10 127int EVP_PKEY_CTX_set_rsa_keygen_primes(EVP_PKEY_CTX *ctx, int primes);
e25761b1 128int EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen(EVP_PKEY_CTX *ctx, int saltlen);
3a1ee3c1 129# ifndef OPENSSL_NO_DEPRECATED_3_0
d7e498ac
RL		 130OSSL_DEPRECATEDIN_3_0
131int EVP_PKEY_CTX_set_rsa_keygen_pubexp(EVP_PKEY_CTX *ctx, BIGNUM *pubexp);
3a1ee3c1 132# endif
2972af10 133
137096a7 134/* Salt length matches digest */
3a1ee3c1 135# define RSA_PSS_SALTLEN_DIGEST -1
137096a7 136/* Verify only: auto detect salt length */
3a1ee3c1 137# define RSA_PSS_SALTLEN_AUTO -2
137096a7 138/* Set salt length to maximum possible */
3a1ee3c1 139# define RSA_PSS_SALTLEN_MAX -3
137096a7 140/* Old compatible max salt length for sign only */
3a1ee3c1 141# define RSA_PSS_SALTLEN_MAX_SIGN -2
0f113f3e 142
89abd1b6
MC		 143int EVP_PKEY_CTX_set_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
144int EVP_PKEY_CTX_set_rsa_mgf1_md_name(EVP_PKEY_CTX *ctx, const char *mdname,
145 const char *mdprops);
146int EVP_PKEY_CTX_get_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD **md);
147int EVP_PKEY_CTX_get_rsa_mgf1_md_name(EVP_PKEY_CTX *ctx, char *name,
148 size_t namelen);
e25761b1
RL		 149int EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
150int EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md_name(EVP_PKEY_CTX *ctx,
151 const char *mdname);
e64b2b5c 152
e947a064
DB		 153int EVP_PKEY_CTX_set_rsa_pss_keygen_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
154int EVP_PKEY_CTX_set_rsa_pss_keygen_md_name(EVP_PKEY_CTX *ctx,
155 const char *mdname,
156 const char *mdprops);
157
89abd1b6
MC		 158int EVP_PKEY_CTX_set_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
159int EVP_PKEY_CTX_set_rsa_oaep_md_name(EVP_PKEY_CTX *ctx, const char *mdname,
160 const char *mdprops);
161int EVP_PKEY_CTX_get_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD **md);
162int EVP_PKEY_CTX_get_rsa_oaep_md_name(EVP_PKEY_CTX *ctx, char *name,
163 size_t namelen);
c5f87134 164int EVP_PKEY_CTX_set0_rsa_oaep_label(EVP_PKEY_CTX *ctx, void *label, int llen);
89abd1b6 165int EVP_PKEY_CTX_get0_rsa_oaep_label(EVP_PKEY_CTX *ctx, unsigned char **label);
0f113f3e 166
3a1ee3c1
RL		 167# define EVP_PKEY_CTRL_RSA_PADDING (EVP_PKEY_ALG_CTRL + 1)
168# define EVP_PKEY_CTRL_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 2)
0f113f3e 169
3a1ee3c1
RL		 170# define EVP_PKEY_CTRL_RSA_KEYGEN_BITS (EVP_PKEY_ALG_CTRL + 3)
171# define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 4)
172# define EVP_PKEY_CTRL_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 5)
0f113f3e 173
3a1ee3c1
RL		 174# define EVP_PKEY_CTRL_GET_RSA_PADDING (EVP_PKEY_ALG_CTRL + 6)
175# define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 7)
176# define EVP_PKEY_CTRL_GET_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 8)
0f113f3e 177
3a1ee3c1
RL		 178# define EVP_PKEY_CTRL_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 9)
179# define EVP_PKEY_CTRL_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 10)
0f113f3e 180
3a1ee3c1
RL		 181# define EVP_PKEY_CTRL_GET_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 11)
182# define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12)
0f113f3e 183
3a1ee3c1 184# define EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES (EVP_PKEY_ALG_CTRL + 13)
665d899f 185
3a1ee3c1
RL		 186# define RSA_PKCS1_PADDING 1
187# define RSA_SSLV23_PADDING 2
188# define RSA_NO_PADDING 3
189# define RSA_PKCS1_OAEP_PADDING 4
190# define RSA_X931_PADDING 5
d9a75107 191
29db322e 192/* EVP_PKEY_ only */
3a1ee3c1
RL		 193# define RSA_PKCS1_PSS_PADDING 6
194# define RSA_PKCS1_WITH_TLS_PADDING 7
58964a49 195
3a1ee3c1 196# define RSA_PKCS1_PADDING_SIZE 11
ba8ad074 197
3a1ee3c1
RL		 198# define RSA_set_app_data(s,arg) RSA_set_ex_data(s,0,arg)
199# define RSA_get_app_data(s) RSA_get_ex_data(s,0)
d02b48c6 200
3a1ee3c1 201# ifndef OPENSSL_NO_DEPRECATED_3_0
d7e498ac
RL		 202OSSL_DEPRECATEDIN_3_0 RSA *RSA_new(void);
203OSSL_DEPRECATEDIN_3_0 RSA *RSA_new_method(ENGINE *engine);
204OSSL_DEPRECATEDIN_3_0 int RSA_bits(const RSA *rsa);
205OSSL_DEPRECATEDIN_3_0 int RSA_size(const RSA *rsa);
206OSSL_DEPRECATEDIN_3_0 int RSA_security_bits(const RSA *rsa);
207
208OSSL_DEPRECATEDIN_3_0 int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d);
209OSSL_DEPRECATEDIN_3_0 int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q);
210OSSL_DEPRECATEDIN_3_0 int RSA_set0_crt_params(RSA *r,
211 BIGNUM *dmp1, BIGNUM *dmq1,
212 BIGNUM *iqmp);
213OSSL_DEPRECATEDIN_3_0 int RSA_set0_multi_prime_params(RSA *r,
214 BIGNUM *primes[],
215 BIGNUM *exps[],
216 BIGNUM *coeffs[],
217 int pnum);
218OSSL_DEPRECATEDIN_3_0 void RSA_get0_key(const RSA *r,
219 const BIGNUM **n, const BIGNUM **e,
220 const BIGNUM **d);
221OSSL_DEPRECATEDIN_3_0 void RSA_get0_factors(const RSA *r,
222 const BIGNUM **p, const BIGNUM **q);
223OSSL_DEPRECATEDIN_3_0 int RSA_get_multi_prime_extra_count(const RSA *r);
224OSSL_DEPRECATEDIN_3_0 int RSA_get0_multi_prime_factors(const RSA *r,
225 const BIGNUM *primes[]);
226OSSL_DEPRECATEDIN_3_0 void RSA_get0_crt_params(const RSA *r,
227 const BIGNUM **dmp1,
228 const BIGNUM **dmq1,
229 const BIGNUM **iqmp);
230OSSL_DEPRECATEDIN_3_0
665d899f
PY		 231int RSA_get0_multi_prime_crt_params(const RSA *r, const BIGNUM *exps[],
232 const BIGNUM *coeffs[]);
d7e498ac
RL		 233OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_n(const RSA *d);
234OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_e(const RSA *d);
235OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_d(const RSA *d);
236OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_p(const RSA *d);
237OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_q(const RSA *d);
238OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_dmp1(const RSA *r);
239OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_dmq1(const RSA *r);
240OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_iqmp(const RSA *r);
241OSSL_DEPRECATEDIN_3_0 const RSA_PSS_PARAMS *RSA_get0_pss_params(const RSA *r);
242OSSL_DEPRECATEDIN_3_0 void RSA_clear_flags(RSA *r, int flags);
243OSSL_DEPRECATEDIN_3_0 int RSA_test_flags(const RSA *r, int flags);
244OSSL_DEPRECATEDIN_3_0 void RSA_set_flags(RSA *r, int flags);
245OSSL_DEPRECATEDIN_3_0 int RSA_get_version(RSA *r);
246OSSL_DEPRECATEDIN_3_0 ENGINE *RSA_get0_engine(const RSA *r);
3a1ee3c1 247# endif /* !OPENSSL_NO_DEPRECATED_3_0 */
9862e9aa 248
e9224c71 249/* Deprecated version */
3a1ee3c1 250# ifndef OPENSSL_NO_DEPRECATED_0_9_8
d7e498ac
RL		 251OSSL_DEPRECATEDIN_0_9_8 RSA *RSA_generate_key(int bits, unsigned long e, void
252 (*callback) (int, int, void *),
253 void *cb_arg);
3a1ee3c1 254# endif
e9224c71
GT		 255
256/* New version */
3a1ee3c1 257# ifndef OPENSSL_NO_DEPRECATED_3_0
d7e498ac
RL		 258OSSL_DEPRECATEDIN_3_0 int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e,
259 BN_GENCB *cb);
665d899f 260/* Multi-prime version */
d7e498ac
RL		 261OSSL_DEPRECATEDIN_3_0 int RSA_generate_multi_prime_key(RSA *rsa, int bits,
262 int primes, BIGNUM *e,
263 BN_GENCB *cb);
264
265OSSL_DEPRECATEDIN_3_0
266int RSA_X931_derive_ex(RSA *rsa, BIGNUM *p1, BIGNUM *p2,
267 BIGNUM *q1, BIGNUM *q2,
268 const BIGNUM *Xp1, const BIGNUM *Xp2,
269 const BIGNUM *Xp, const BIGNUM *Xq1,
270 const BIGNUM *Xq2, const BIGNUM *Xq,
271 const BIGNUM *e, BN_GENCB *cb);
272OSSL_DEPRECATEDIN_3_0 int RSA_X931_generate_key_ex(RSA *rsa, int bits,
273 const BIGNUM *e,
274 BN_GENCB *cb);
275
276OSSL_DEPRECATEDIN_3_0 int RSA_check_key(const RSA *);
277OSSL_DEPRECATEDIN_3_0 int RSA_check_key_ex(const RSA *, BN_GENCB *cb);
0f113f3e 278 /* next 4 return -1 on error */
d7e498ac
RL		 279OSSL_DEPRECATEDIN_3_0
280int RSA_public_encrypt(int flen, const unsigned char *from, unsigned char *to,
281 RSA *rsa, int padding);
282OSSL_DEPRECATEDIN_3_0
283int RSA_private_encrypt(int flen, const unsigned char *from, unsigned char *to,
284 RSA *rsa, int padding);
285OSSL_DEPRECATEDIN_3_0
286int RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to,
287 RSA *rsa, int padding);
288OSSL_DEPRECATEDIN_3_0
289int RSA_private_decrypt(int flen, const unsigned char *from, unsigned char *to,
290 RSA *rsa, int padding);
291OSSL_DEPRECATEDIN_3_0 void RSA_free(RSA *r);
5cbc2e8b 292/* "up" the RSA object's reference count */
d7e498ac
RL		 293OSSL_DEPRECATEDIN_3_0 int RSA_up_ref(RSA *r);
294OSSL_DEPRECATEDIN_3_0 int RSA_flags(const RSA *r);
58964a49 295
d7e498ac
RL		 296OSSL_DEPRECATEDIN_3_0 void RSA_set_default_method(const RSA_METHOD *meth);
297OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_get_default_method(void);
298OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_null_method(void);
299OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_get_method(const RSA *rsa);
300OSSL_DEPRECATEDIN_3_0 int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);
d02b48c6 301
b0700d2c 302/* these are the actual RSA functions */
d7e498ac 303OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_PKCS1_OpenSSL(void);
d02b48c6 304
d7e498ac
RL		 305DECLARE_ASN1_ENCODE_FUNCTIONS_name_attr(OSSL_DEPRECATEDIN_3_0,
306 RSA, RSAPublicKey)
307DECLARE_ASN1_ENCODE_FUNCTIONS_name_attr(OSSL_DEPRECATEDIN_3_0,
308 RSA, RSAPrivateKey)
3a1ee3c1 309# endif /* !OPENSSL_NO_DEPRECATED_3_0 */
e5e04ee3 310
d7e498ac 311int RSA_pkey_ctx_ctrl(EVP_PKEY_CTX *ctx, int optype, int cmd, int p1, void *p2);
78d3b819 312
677add38 313struct rsa_pss_params_st {
0f113f3e
MC		 314 X509_ALGOR *hashAlgorithm;
315 X509_ALGOR *maskGenAlgorithm;
316 ASN1_INTEGER *saltLength;
317 ASN1_INTEGER *trailerField;
6745a1ff
DSH		 318 /* Decoded hash algorithm from maskGenAlgorithm */
319 X509_ALGOR *maskHash;
677add38 320};
ff04bbe3 321
63b825c9 322DECLARE_ASN1_FUNCTIONS(RSA_PSS_PARAMS)
ff04bbe3 323
0f113f3e
MC		 324typedef struct rsa_oaep_params_st {
325 X509_ALGOR *hashFunc;
326 X509_ALGOR *maskGenFunc;
327 X509_ALGOR *pSourceFunc;
6745a1ff
DSH		 328 /* Decoded hash algorithm from maskGenFunc */
329 X509_ALGOR *maskHash;
0f113f3e 330} RSA_OAEP_PARAMS;
0574cadf
DSH		 331
332DECLARE_ASN1_FUNCTIONS(RSA_OAEP_PARAMS)
333
3a1ee3c1
RL		 334# ifndef OPENSSL_NO_DEPRECATED_3_0
335# ifndef OPENSSL_NO_STDIO
d7e498ac 336OSSL_DEPRECATEDIN_3_0 int RSA_print_fp(FILE *fp, const RSA *r, int offset);
3a1ee3c1 337# endif
d02b48c6 338
d7e498ac 339OSSL_DEPRECATEDIN_3_0 int RSA_print(BIO *bp, const RSA *r, int offset);
d02b48c6 340
0f113f3e
MC		 341/*
342 * The following 2 functions sign and verify a X509_SIG ASN1 object inside
343 * PKCS#1 padded RSA encryption
344 */
d7e498ac
RL		 345OSSL_DEPRECATEDIN_3_0 int RSA_sign(int type, const unsigned char *m,
346 unsigned int m_length, unsigned char *sigret,
347 unsigned int *siglen, RSA *rsa);
348OSSL_DEPRECATEDIN_3_0 int RSA_verify(int type, const unsigned char *m,
349 unsigned int m_length,
350 const unsigned char *sigbuf,
351 unsigned int siglen, RSA *rsa);
d02b48c6 352
0f113f3e
MC		 353/*
354 * The following 2 function sign and verify a ASN1_OCTET_STRING object inside
355 * PKCS#1 padded RSA encryption
356 */
d7e498ac
RL		 357OSSL_DEPRECATEDIN_3_0
358int RSA_sign_ASN1_OCTET_STRING(int type,
359 const unsigned char *m, unsigned int m_length,
360 unsigned char *sigret, unsigned int *siglen,
361 RSA *rsa);
362OSSL_DEPRECATEDIN_3_0
363int RSA_verify_ASN1_OCTET_STRING(int type,
364 const unsigned char *m, unsigned int m_length,
365 unsigned char *sigbuf, unsigned int siglen,
366 RSA *rsa);
367
368OSSL_DEPRECATEDIN_3_0 int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
369OSSL_DEPRECATEDIN_3_0 void RSA_blinding_off(RSA *rsa);
370OSSL_DEPRECATEDIN_3_0 BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);
371
372OSSL_DEPRECATEDIN_3_0
373int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen,
374 const unsigned char *f, int fl);
375OSSL_DEPRECATEDIN_3_0
376int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen,
377 const unsigned char *f, int fl,
378 int rsa_len);
379OSSL_DEPRECATEDIN_3_0
380int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen,
381 const unsigned char *f, int fl);
382OSSL_DEPRECATEDIN_3_0
383int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen,
384 const unsigned char *f, int fl,
385 int rsa_len);
386OSSL_DEPRECATEDIN_3_0 int PKCS1_MGF1(unsigned char *mask, long len,
387 const unsigned char *seed, long seedlen,
388 const EVP_MD *dgst);
389OSSL_DEPRECATEDIN_3_0
390int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen,
391 const unsigned char *f, int fl,
392 const unsigned char *p, int pl);
393OSSL_DEPRECATEDIN_3_0
394int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen,
395 const unsigned char *f, int fl, int rsa_len,
396 const unsigned char *p, int pl);
397OSSL_DEPRECATEDIN_3_0
398int RSA_padding_add_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
399 const unsigned char *from, int flen,
400 const unsigned char *param, int plen,
401 const EVP_MD *md, const EVP_MD *mgf1md);
402OSSL_DEPRECATEDIN_3_0
403int RSA_padding_check_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
404 const unsigned char *from, int flen,
405 int num,
406 const unsigned char *param, int plen,
407 const EVP_MD *md, const EVP_MD *mgf1md);
408OSSL_DEPRECATEDIN_3_0
409int RSA_padding_add_SSLv23(unsigned char *to, int tlen,
410 const unsigned char *f, int fl);
411OSSL_DEPRECATEDIN_3_0
412int RSA_padding_check_SSLv23(unsigned char *to, int tlen,
413 const unsigned char *f, int fl,
414 int rsa_len);
415OSSL_DEPRECATEDIN_3_0 int RSA_padding_add_none(unsigned char *to, int tlen,
416 const unsigned char *f, int fl);
417OSSL_DEPRECATEDIN_3_0 int RSA_padding_check_none(unsigned char *to, int tlen,
418 const unsigned char *f, int fl,
419 int rsa_len);
420OSSL_DEPRECATEDIN_3_0 int RSA_padding_add_X931(unsigned char *to, int tlen,
421 const unsigned char *f, int fl);
422OSSL_DEPRECATEDIN_3_0 int RSA_padding_check_X931(unsigned char *to, int tlen,
423 const unsigned char *f, int fl,
424 int rsa_len);
425OSSL_DEPRECATEDIN_3_0 int RSA_X931_hash_id(int nid);
426
427OSSL_DEPRECATEDIN_3_0
428int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
429 const EVP_MD *Hash, const unsigned char *EM,
430 int sLen);
431OSSL_DEPRECATEDIN_3_0
432int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
433 const unsigned char *mHash, const EVP_MD *Hash,
434 int sLen);
435
436OSSL_DEPRECATEDIN_3_0
437int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
438 const EVP_MD *Hash, const EVP_MD *mgf1Hash,
439 const unsigned char *EM, int sLen);
440
441OSSL_DEPRECATEDIN_3_0
442int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
443 const unsigned char *mHash,
444 const EVP_MD *Hash, const EVP_MD *mgf1Hash,
445 int sLen);
c553721e 446
3a1ee3c1 447# define RSA_get_ex_new_index(l, p, newf, dupf, freef) \
e6390aca 448 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, l, p, newf, dupf, freef)
d7e498ac
RL		 449OSSL_DEPRECATEDIN_3_0 int RSA_set_ex_data(RSA *r, int idx, void *arg);
450OSSL_DEPRECATEDIN_3_0 void *RSA_get_ex_data(const RSA *r, int idx);
58964a49 451
d7e498ac
RL		 452DECLARE_ASN1_DUP_FUNCTION_name_attr(OSSL_DEPRECATEDIN_3_0, RSA, RSAPublicKey)
453DECLARE_ASN1_DUP_FUNCTION_name_attr(OSSL_DEPRECATEDIN_3_0, RSA, RSAPrivateKey)
40889b9c 454
0f113f3e
MC		 455/*
456 * If this flag is set the RSA method is FIPS compliant and can be used in
457 * FIPS mode. This is set in the validated module method. If an application
458 * sets this flag in its own methods it is its responsibility to ensure the
459 * result is compliant.
c553721e
DSH		 460 */
461
3a1ee3c1 462# define RSA_FLAG_FIPS_METHOD 0x0400
c553721e 463
0f113f3e
MC		 464/*
465 * If this flag is set the operations normally disabled in FIPS mode are
c553721e
DSH		 466 * permitted it is then the applications responsibility to ensure that the
467 * usage is compliant.
468 */
469
3a1ee3c1 470# define RSA_FLAG_NON_FIPS_ALLOW 0x0400
0f113f3e
MC		 471/*
472 * Application has decided PRNG is good enough to generate a key: don't
cac4fb58
DSH		 473 * check.
474 */
3a1ee3c1 475# define RSA_FLAG_CHECKED 0x0800
c5f87134 476
d7e498ac
RL		 477OSSL_DEPRECATEDIN_3_0 RSA_METHOD *RSA_meth_new(const char *name, int flags);
478OSSL_DEPRECATEDIN_3_0 void RSA_meth_free(RSA_METHOD *meth);
479OSSL_DEPRECATEDIN_3_0 RSA_METHOD *RSA_meth_dup(const RSA_METHOD *meth);
480OSSL_DEPRECATEDIN_3_0 const char *RSA_meth_get0_name(const RSA_METHOD *meth);
481OSSL_DEPRECATEDIN_3_0 int RSA_meth_set1_name(RSA_METHOD *meth,
482 const char *name);
483OSSL_DEPRECATEDIN_3_0 int RSA_meth_get_flags(const RSA_METHOD *meth);
484OSSL_DEPRECATEDIN_3_0 int RSA_meth_set_flags(RSA_METHOD *meth, int flags);
485OSSL_DEPRECATEDIN_3_0 void *RSA_meth_get0_app_data(const RSA_METHOD *meth);
486OSSL_DEPRECATEDIN_3_0 int RSA_meth_set0_app_data(RSA_METHOD *meth,
487 void *app_data);
488OSSL_DEPRECATEDIN_3_0
489int (*RSA_meth_get_pub_enc(const RSA_METHOD *meth)) (int flen,
490 const unsigned char *from,
491 unsigned char *to,
492 RSA *rsa, int padding);
493OSSL_DEPRECATEDIN_3_0
494int RSA_meth_set_pub_enc(RSA_METHOD *rsa,
b72c9121
RL		 495 int (*pub_enc) (int flen, const unsigned char *from,
496 unsigned char *to, RSA *rsa,
d7e498ac
RL		 497 int padding));
498OSSL_DEPRECATEDIN_3_0
499int (*RSA_meth_get_pub_dec(const RSA_METHOD *meth)) (int flen,
500 const unsigned char *from,
501 unsigned char *to,
502 RSA *rsa, int padding);
503OSSL_DEPRECATEDIN_3_0
504int RSA_meth_set_pub_dec(RSA_METHOD *rsa,
b72c9121
RL		 505 int (*pub_dec) (int flen, const unsigned char *from,
506 unsigned char *to, RSA *rsa,
d7e498ac
RL		 507 int padding));
508OSSL_DEPRECATEDIN_3_0
509int (*RSA_meth_get_priv_enc(const RSA_METHOD *meth)) (int flen,
510 const unsigned char *from,
511 unsigned char *to,
512 RSA *rsa, int padding);
513OSSL_DEPRECATEDIN_3_0
514int RSA_meth_set_priv_enc(RSA_METHOD *rsa,
b72c9121
RL		 515 int (*priv_enc) (int flen, const unsigned char *from,
516 unsigned char *to, RSA *rsa,
d7e498ac
RL		 517 int padding));
518OSSL_DEPRECATEDIN_3_0
519int (*RSA_meth_get_priv_dec(const RSA_METHOD *meth)) (int flen,
520 const unsigned char *from,
521 unsigned char *to,
522 RSA *rsa, int padding);
523OSSL_DEPRECATEDIN_3_0
524int RSA_meth_set_priv_dec(RSA_METHOD *rsa,
b72c9121
RL		 525 int (*priv_dec) (int flen, const unsigned char *from,
526 unsigned char *to, RSA *rsa,
d7e498ac
RL		 527 int padding));
528OSSL_DEPRECATEDIN_3_0
529int (*RSA_meth_get_mod_exp(const RSA_METHOD *meth)) (BIGNUM *r0,
530 const BIGNUM *i,
531 RSA *rsa, BN_CTX *ctx);
532OSSL_DEPRECATEDIN_3_0
533int RSA_meth_set_mod_exp(RSA_METHOD *rsa,
972f6788 534 int (*mod_exp) (BIGNUM *r0, const BIGNUM *i, RSA *rsa,
d7e498ac
RL		 535 BN_CTX *ctx));
536OSSL_DEPRECATEDIN_3_0
537int (*RSA_meth_get_bn_mod_exp(const RSA_METHOD *meth)) (BIGNUM *r,
538 const BIGNUM *a,
539 const BIGNUM *p,
540 const BIGNUM *m,
541 BN_CTX *ctx,
542 BN_MONT_CTX *m_ctx);
543OSSL_DEPRECATEDIN_3_0
544int RSA_meth_set_bn_mod_exp(RSA_METHOD *rsa,
b72c9121
RL		 545 int (*bn_mod_exp) (BIGNUM *r,
546 const BIGNUM *a,
547 const BIGNUM *p,
548 const BIGNUM *m,
549 BN_CTX *ctx,
d7e498ac
RL		 550 BN_MONT_CTX *m_ctx));
551OSSL_DEPRECATEDIN_3_0
552int (*RSA_meth_get_init(const RSA_METHOD *meth)) (RSA *rsa);
553OSSL_DEPRECATEDIN_3_0
554int RSA_meth_set_init(RSA_METHOD *rsa, int (*init) (RSA *rsa));
555OSSL_DEPRECATEDIN_3_0
556int (*RSA_meth_get_finish(const RSA_METHOD *meth)) (RSA *rsa);
557OSSL_DEPRECATEDIN_3_0
558int RSA_meth_set_finish(RSA_METHOD *rsa, int (*finish) (RSA *rsa));
559OSSL_DEPRECATEDIN_3_0
560int (*RSA_meth_get_sign(const RSA_METHOD *meth)) (int type,
561 const unsigned char *m,
562 unsigned int m_length,
563 unsigned char *sigret,
564 unsigned int *siglen,
565 const RSA *rsa);
566OSSL_DEPRECATEDIN_3_0
567int RSA_meth_set_sign(RSA_METHOD *rsa,
b72c9121
RL		 568 int (*sign) (int type, const unsigned char *m,
569 unsigned int m_length,
570 unsigned char *sigret, unsigned int *siglen,
d7e498ac
RL		 571 const RSA *rsa));
572OSSL_DEPRECATEDIN_3_0
573int (*RSA_meth_get_verify(const RSA_METHOD *meth)) (int dtype,
574 const unsigned char *m,
575 unsigned int m_length,
576 const unsigned char *sigbuf,
577 unsigned int siglen,
578 const RSA *rsa);
579OSSL_DEPRECATEDIN_3_0
580int RSA_meth_set_verify(RSA_METHOD *rsa,
b72c9121
RL		 581 int (*verify) (int dtype, const unsigned char *m,
582 unsigned int m_length,
583 const unsigned char *sigbuf,
d7e498ac
RL		 584 unsigned int siglen, const RSA *rsa));
585OSSL_DEPRECATEDIN_3_0
586int (*RSA_meth_get_keygen(const RSA_METHOD *meth)) (RSA *rsa, int bits,
587 BIGNUM *e, BN_GENCB *cb);
588OSSL_DEPRECATEDIN_3_0
589int RSA_meth_set_keygen(RSA_METHOD *rsa,
b72c9121 590 int (*keygen) (RSA *rsa, int bits, BIGNUM *e,
d7e498ac
RL		 591 BN_GENCB *cb));
592OSSL_DEPRECATEDIN_3_0
593int (*RSA_meth_get_multi_prime_keygen(const RSA_METHOD *meth)) (RSA *rsa,
594 int bits,
595 int primes,
596 BIGNUM *e,
597 BN_GENCB *cb);
598OSSL_DEPRECATEDIN_3_0
599int RSA_meth_set_multi_prime_keygen(RSA_METHOD *meth,
665d899f
PY		 600 int (*keygen) (RSA *rsa, int bits,
601 int primes, BIGNUM *e,
d7e498ac
RL		 602 BN_GENCB *cb));
603#endif /* !OPENSSL_NO_DEPRECATED_3_0 */
6d311938 604
3a1ee3c1 605# ifdef __cplusplus
d02b48c6 606}
3c27208f 607# endif
d02b48c6 608#endif
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