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
35extern "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
122int EVP_PKEY_CTX_set_rsa_padding(EVP_PKEY_CTX *ctx, int pad_mode);
123int EVP_PKEY_CTX_get_rsa_padding(EVP_PKEY_CTX *ctx, int *pad_mode);
124
125int EVP_PKEY_CTX_set_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int saltlen);
126int EVP_PKEY_CTX_get_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int *saltlen);
127
128int EVP_PKEY_CTX_set_rsa_keygen_bits(EVP_PKEY_CTX *ctx, int bits);
129int EVP_PKEY_CTX_set1_rsa_keygen_pubexp(EVP_PKEY_CTX *ctx, BIGNUM *pubexp);
130int EVP_PKEY_CTX_set_rsa_keygen_primes(EVP_PKEY_CTX *ctx, int primes);
131int EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen(EVP_PKEY_CTX *ctx, int saltlen);
132#ifndef OPENSSL_NO_DEPRECATED_3_0
133OSSL_DEPRECATEDIN_3_0
134int 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/* Auto-detect on verify, set salt length to min(maximum possible, digest
144 * length) on sign */
145#define RSA_PSS_SALTLEN_AUTO_DIGEST_MAX -4
146/* Old compatible max salt length for sign only */
147#define RSA_PSS_SALTLEN_MAX_SIGN -2
148
149int EVP_PKEY_CTX_set_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
150int EVP_PKEY_CTX_set_rsa_mgf1_md_name(EVP_PKEY_CTX *ctx, const char *mdname,
151 const char *mdprops);
152int EVP_PKEY_CTX_get_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD **md);
153int EVP_PKEY_CTX_get_rsa_mgf1_md_name(EVP_PKEY_CTX *ctx, char *name,
154 size_t namelen);
155int EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
156int EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md_name(EVP_PKEY_CTX *ctx,
157 const char *mdname);
158
159int EVP_PKEY_CTX_set_rsa_pss_keygen_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
160int EVP_PKEY_CTX_set_rsa_pss_keygen_md_name(EVP_PKEY_CTX *ctx,
161 const char *mdname,
162 const char *mdprops);
163
164int EVP_PKEY_CTX_set_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
165int EVP_PKEY_CTX_set_rsa_oaep_md_name(EVP_PKEY_CTX *ctx, const char *mdname,
166 const char *mdprops);
167int EVP_PKEY_CTX_get_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD **md);
168int EVP_PKEY_CTX_get_rsa_oaep_md_name(EVP_PKEY_CTX *ctx, char *name,
169 size_t namelen);
170int EVP_PKEY_CTX_set0_rsa_oaep_label(EVP_PKEY_CTX *ctx, void *label, int llen);
171int EVP_PKEY_CTX_get0_rsa_oaep_label(EVP_PKEY_CTX *ctx, unsigned char **label);
172
173#define EVP_PKEY_CTRL_RSA_PADDING (EVP_PKEY_ALG_CTRL + 1)
174#define EVP_PKEY_CTRL_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 2)
175
176#define EVP_PKEY_CTRL_RSA_KEYGEN_BITS (EVP_PKEY_ALG_CTRL + 3)
177#define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 4)
178#define EVP_PKEY_CTRL_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 5)
179
180#define EVP_PKEY_CTRL_GET_RSA_PADDING (EVP_PKEY_ALG_CTRL + 6)
181#define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 7)
182#define EVP_PKEY_CTRL_GET_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 8)
183
184#define EVP_PKEY_CTRL_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 9)
185#define EVP_PKEY_CTRL_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 10)
186
187#define EVP_PKEY_CTRL_GET_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 11)
188#define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12)
189
190#define EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES (EVP_PKEY_ALG_CTRL + 13)
191
192#define EVP_PKEY_CTRL_RSA_IMPLICIT_REJECTION (EVP_PKEY_ALG_CTRL + 14)
193
194#define RSA_PKCS1_PADDING 1
195#define RSA_NO_PADDING 3
196#define RSA_PKCS1_OAEP_PADDING 4
197#define RSA_X931_PADDING 5
198
199/* EVP_PKEY_ only */
200#define RSA_PKCS1_PSS_PADDING 6
201#define RSA_PKCS1_WITH_TLS_PADDING 7
202
203/* internal RSA_ only */
204#define RSA_PKCS1_NO_IMPLICIT_REJECT_PADDING 8
205
206#define RSA_PKCS1_PADDING_SIZE 11
207
208#define RSA_set_app_data(s, arg) RSA_set_ex_data(s, 0, arg)
209#define RSA_get_app_data(s) RSA_get_ex_data(s, 0)
210
211#ifndef OPENSSL_NO_DEPRECATED_3_0
212OSSL_DEPRECATEDIN_3_0 RSA *RSA_new(void);
213OSSL_DEPRECATEDIN_3_0 RSA *RSA_new_method(ENGINE *engine);
214OSSL_DEPRECATEDIN_3_0 int RSA_bits(const RSA *rsa);
215OSSL_DEPRECATEDIN_3_0 int RSA_size(const RSA *rsa);
216OSSL_DEPRECATEDIN_3_0 int RSA_security_bits(const RSA *rsa);
217
218OSSL_DEPRECATEDIN_3_0 int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d);
219OSSL_DEPRECATEDIN_3_0 int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q);
220OSSL_DEPRECATEDIN_3_0 int RSA_set0_crt_params(RSA *r,
221 BIGNUM *dmp1, BIGNUM *dmq1,
222 BIGNUM *iqmp);
223OSSL_DEPRECATEDIN_3_0 int RSA_set0_multi_prime_params(RSA *r,
224 BIGNUM *primes[],
225 BIGNUM *exps[],
226 BIGNUM *coeffs[],
227 int pnum);
228OSSL_DEPRECATEDIN_3_0 void RSA_get0_key(const RSA *r,
229 const BIGNUM **n, const BIGNUM **e,
230 const BIGNUM **d);
231OSSL_DEPRECATEDIN_3_0 void RSA_get0_factors(const RSA *r,
232 const BIGNUM **p, const BIGNUM **q);
233OSSL_DEPRECATEDIN_3_0 int RSA_get_multi_prime_extra_count(const RSA *r);
234OSSL_DEPRECATEDIN_3_0 int RSA_get0_multi_prime_factors(const RSA *r,
235 const BIGNUM *primes[]);
236OSSL_DEPRECATEDIN_3_0 void RSA_get0_crt_params(const RSA *r,
237 const BIGNUM **dmp1,
238 const BIGNUM **dmq1,
239 const BIGNUM **iqmp);
240OSSL_DEPRECATEDIN_3_0
241int RSA_get0_multi_prime_crt_params(const RSA *r, const BIGNUM *exps[],
242 const BIGNUM *coeffs[]);
243OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_n(const RSA *d);
244OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_e(const RSA *d);
245OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_d(const RSA *d);
246OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_p(const RSA *d);
247OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_q(const RSA *d);
248OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_dmp1(const RSA *r);
249OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_dmq1(const RSA *r);
250OSSL_DEPRECATEDIN_3_0 const BIGNUM *RSA_get0_iqmp(const RSA *r);
251OSSL_DEPRECATEDIN_3_0 const RSA_PSS_PARAMS *RSA_get0_pss_params(const RSA *r);
252OSSL_DEPRECATEDIN_3_0 void RSA_clear_flags(RSA *r, int flags);
253OSSL_DEPRECATEDIN_3_0 int RSA_test_flags(const RSA *r, int flags);
254OSSL_DEPRECATEDIN_3_0 void RSA_set_flags(RSA *r, int flags);
255OSSL_DEPRECATEDIN_3_0 int RSA_get_version(RSA *r);
256OSSL_DEPRECATEDIN_3_0 ENGINE *RSA_get0_engine(const RSA *r);
257#endif /* !OPENSSL_NO_DEPRECATED_3_0 */
258
259#define EVP_RSA_gen(bits) \
260 EVP_PKEY_Q_keygen(NULL, NULL, "RSA", (size_t)(0 + (bits)))
261
262/* Deprecated version */
263#ifndef OPENSSL_NO_DEPRECATED_0_9_8
264OSSL_DEPRECATEDIN_0_9_8 RSA *RSA_generate_key(int bits, unsigned long e, void (*callback)(int, int, void *),
265 void *cb_arg);
266#endif
267
268/* New version */
269#ifndef OPENSSL_NO_DEPRECATED_3_0
270OSSL_DEPRECATEDIN_3_0 int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e,
271 BN_GENCB *cb);
272/* Multi-prime version */
273OSSL_DEPRECATEDIN_3_0 int RSA_generate_multi_prime_key(RSA *rsa, int bits,
274 int primes, BIGNUM *e,
275 BN_GENCB *cb);
276
277OSSL_DEPRECATEDIN_3_0
278int RSA_X931_derive_ex(RSA *rsa, BIGNUM *p1, BIGNUM *p2,
279 BIGNUM *q1, BIGNUM *q2,
280 const BIGNUM *Xp1, const BIGNUM *Xp2,
281 const BIGNUM *Xp, const BIGNUM *Xq1,
282 const BIGNUM *Xq2, const BIGNUM *Xq,
283 const BIGNUM *e, BN_GENCB *cb);
284OSSL_DEPRECATEDIN_3_0 int RSA_X931_generate_key_ex(RSA *rsa, int bits,
285 const BIGNUM *e,
286 BN_GENCB *cb);
287
288OSSL_DEPRECATEDIN_3_0 int RSA_check_key(const RSA *);
289OSSL_DEPRECATEDIN_3_0 int RSA_check_key_ex(const RSA *, BN_GENCB *cb);
290/* next 4 return -1 on error */
291OSSL_DEPRECATEDIN_3_0
292int RSA_public_encrypt(int flen, const unsigned char *from, unsigned char *to,
293 RSA *rsa, int padding);
294OSSL_DEPRECATEDIN_3_0
295int RSA_private_encrypt(int flen, const unsigned char *from, unsigned char *to,
296 RSA *rsa, int padding);
297OSSL_DEPRECATEDIN_3_0
298int RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to,
299 RSA *rsa, int padding);
300OSSL_DEPRECATEDIN_3_0
301int RSA_private_decrypt(int flen, const unsigned char *from, unsigned char *to,
302 RSA *rsa, int padding);
303OSSL_DEPRECATEDIN_3_0 void RSA_free(RSA *r);
304/* "up" the RSA object's reference count */
305OSSL_DEPRECATEDIN_3_0 int RSA_up_ref(RSA *r);
306OSSL_DEPRECATEDIN_3_0 int RSA_flags(const RSA *r);
307
308OSSL_DEPRECATEDIN_3_0 void RSA_set_default_method(const RSA_METHOD *meth);
309OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_get_default_method(void);
310OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_null_method(void);
311OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_get_method(const RSA *rsa);
312OSSL_DEPRECATEDIN_3_0 int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);
313
314/* these are the actual RSA functions */
315OSSL_DEPRECATEDIN_3_0 const RSA_METHOD *RSA_PKCS1_OpenSSL(void);
316
317DECLARE_ASN1_ENCODE_FUNCTIONS_name_attr(OSSL_DEPRECATEDIN_3_0,
318 RSA, RSAPublicKey)
319DECLARE_ASN1_ENCODE_FUNCTIONS_name_attr(OSSL_DEPRECATEDIN_3_0,
320 RSA, RSAPrivateKey)
321#endif /* !OPENSSL_NO_DEPRECATED_3_0 */
322
323int RSA_pkey_ctx_ctrl(EVP_PKEY_CTX *ctx, int optype, int cmd, int p1, void *p2);
324
325struct rsa_pss_params_st {
326 X509_ALGOR *hashAlgorithm;
327 X509_ALGOR *maskGenAlgorithm;
328 ASN1_INTEGER *saltLength;
329 ASN1_INTEGER *trailerField;
330 /* Decoded hash algorithm from maskGenAlgorithm */
331 X509_ALGOR *maskHash;
332};
333
334DECLARE_ASN1_FUNCTIONS(RSA_PSS_PARAMS)
335DECLARE_ASN1_DUP_FUNCTION(RSA_PSS_PARAMS)
336
337typedef struct rsa_oaep_params_st {
338 X509_ALGOR *hashFunc;
339 X509_ALGOR *maskGenFunc;
340 X509_ALGOR *pSourceFunc;
341 /* Decoded hash algorithm from maskGenFunc */
342 X509_ALGOR *maskHash;
343} RSA_OAEP_PARAMS;
344
345DECLARE_ASN1_FUNCTIONS(RSA_OAEP_PARAMS)
346
347#ifndef OPENSSL_NO_DEPRECATED_3_0
348#ifndef OPENSSL_NO_STDIO
349OSSL_DEPRECATEDIN_3_0 int RSA_print_fp(FILE *fp, const RSA *r, int offset);
350#endif
351
352OSSL_DEPRECATEDIN_3_0 int RSA_print(BIO *bp, const RSA *r, int offset);
353
354/*
355 * The following 2 functions sign and verify a X509_SIG ASN1 object inside
356 * PKCS#1 padded RSA encryption
357 */
358OSSL_DEPRECATEDIN_3_0 int RSA_sign(int type, const unsigned char *m,
359 unsigned int m_length, unsigned char *sigret,
360 unsigned int *siglen, RSA *rsa);
361OSSL_DEPRECATEDIN_3_0 int RSA_verify(int type, const unsigned char *m,
362 unsigned int m_length,
363 const unsigned char *sigbuf,
364 unsigned int siglen, RSA *rsa);
365
366/*
367 * The following 2 function sign and verify a ASN1_OCTET_STRING object inside
368 * PKCS#1 padded RSA encryption
369 */
370OSSL_DEPRECATEDIN_3_0
371int RSA_sign_ASN1_OCTET_STRING(int type,
372 const unsigned char *m, unsigned int m_length,
373 unsigned char *sigret, unsigned int *siglen,
374 RSA *rsa);
375OSSL_DEPRECATEDIN_3_0
376int RSA_verify_ASN1_OCTET_STRING(int type,
377 const unsigned char *m, unsigned int m_length,
378 unsigned char *sigbuf, unsigned int siglen,
379 RSA *rsa);
380
381OSSL_DEPRECATEDIN_3_0 int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
382OSSL_DEPRECATEDIN_3_0 void RSA_blinding_off(RSA *rsa);
383OSSL_DEPRECATEDIN_3_0 BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);
384
385OSSL_DEPRECATEDIN_3_0
386int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen,
387 const unsigned char *f, int fl);
388OSSL_DEPRECATEDIN_3_0
389int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen,
390 const unsigned char *f, int fl,
391 int rsa_len);
392OSSL_DEPRECATEDIN_3_0
393int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen,
394 const unsigned char *f, int fl);
395OSSL_DEPRECATEDIN_3_0
396int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen,
397 const unsigned char *f, int fl,
398 int rsa_len);
399OSSL_DEPRECATEDIN_3_0 int PKCS1_MGF1(unsigned char *mask, long len,
400 const unsigned char *seed, long seedlen,
401 const EVP_MD *dgst);
402OSSL_DEPRECATEDIN_3_0
403int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen,
404 const unsigned char *f, int fl,
405 const unsigned char *p, int pl);
406OSSL_DEPRECATEDIN_3_0
407int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen,
408 const unsigned char *f, int fl, int rsa_len,
409 const unsigned char *p, int pl);
410OSSL_DEPRECATEDIN_3_0
411int RSA_padding_add_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
412 const unsigned char *from, int flen,
413 const unsigned char *param, int plen,
414 const EVP_MD *md, const EVP_MD *mgf1md);
415OSSL_DEPRECATEDIN_3_0
416int RSA_padding_check_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
417 const unsigned char *from, int flen,
418 int num,
419 const unsigned char *param, int plen,
420 const EVP_MD *md, const EVP_MD *mgf1md);
421OSSL_DEPRECATEDIN_3_0 int RSA_padding_add_none(unsigned char *to, int tlen,
422 const unsigned char *f, int fl);
423OSSL_DEPRECATEDIN_3_0 int RSA_padding_check_none(unsigned char *to, int tlen,
424 const unsigned char *f, int fl,
425 int rsa_len);
426OSSL_DEPRECATEDIN_3_0 int RSA_padding_add_X931(unsigned char *to, int tlen,
427 const unsigned char *f, int fl);
428OSSL_DEPRECATEDIN_3_0 int RSA_padding_check_X931(unsigned char *to, int tlen,
429 const unsigned char *f, int fl,
430 int rsa_len);
431OSSL_DEPRECATEDIN_3_0 int RSA_X931_hash_id(int nid);
432
433OSSL_DEPRECATEDIN_3_0
434int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
435 const EVP_MD *Hash, const unsigned char *EM,
436 int sLen);
437OSSL_DEPRECATEDIN_3_0
438int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
439 const unsigned char *mHash, const EVP_MD *Hash,
440 int sLen);
441
442OSSL_DEPRECATEDIN_3_0
443int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
444 const EVP_MD *Hash, const EVP_MD *mgf1Hash,
445 const unsigned char *EM, int sLen);
446
447OSSL_DEPRECATEDIN_3_0
448int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
449 const unsigned char *mHash,
450 const EVP_MD *Hash, const EVP_MD *mgf1Hash,
451 int sLen);
452
453#define RSA_get_ex_new_index(l, p, newf, dupf, freef) \
454 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, l, p, newf, dupf, freef)
455OSSL_DEPRECATEDIN_3_0 int RSA_set_ex_data(RSA *r, int idx, void *arg);
456OSSL_DEPRECATEDIN_3_0 void *RSA_get_ex_data(const RSA *r, int idx);
457
458DECLARE_ASN1_DUP_FUNCTION_name_attr(OSSL_DEPRECATEDIN_3_0, RSA, RSAPublicKey)
459DECLARE_ASN1_DUP_FUNCTION_name_attr(OSSL_DEPRECATEDIN_3_0, RSA, RSAPrivateKey)
460
461/*
462 * If this flag is set the RSA method is FIPS compliant and can be used in
463 * FIPS mode. This is set in the validated module method. If an application
464 * sets this flag in its own methods it is its responsibility to ensure the
465 * result is compliant.
466 */
467
468#define RSA_FLAG_FIPS_METHOD 0x0400
469
470/*
471 * If this flag is set the operations normally disabled in FIPS mode are
472 * permitted it is then the applications responsibility to ensure that the
473 * usage is compliant.
474 */
475
476#define RSA_FLAG_NON_FIPS_ALLOW 0x0400
477/*
478 * Application has decided PRNG is good enough to generate a key: don't
479 * check.
480 */
481#define RSA_FLAG_CHECKED 0x0800
482
483OSSL_DEPRECATEDIN_3_0 RSA_METHOD *RSA_meth_new(const char *name, int flags);
484OSSL_DEPRECATEDIN_3_0 void RSA_meth_free(RSA_METHOD *meth);
485OSSL_DEPRECATEDIN_3_0 RSA_METHOD *RSA_meth_dup(const RSA_METHOD *meth);
486OSSL_DEPRECATEDIN_3_0 const char *RSA_meth_get0_name(const RSA_METHOD *meth);
487OSSL_DEPRECATEDIN_3_0 int RSA_meth_set1_name(RSA_METHOD *meth,
488 const char *name);
489OSSL_DEPRECATEDIN_3_0 int RSA_meth_get_flags(const RSA_METHOD *meth);
490OSSL_DEPRECATEDIN_3_0 int RSA_meth_set_flags(RSA_METHOD *meth, int flags);
491OSSL_DEPRECATEDIN_3_0 void *RSA_meth_get0_app_data(const RSA_METHOD *meth);
492OSSL_DEPRECATEDIN_3_0 int RSA_meth_set0_app_data(RSA_METHOD *meth,
493 void *app_data);
494OSSL_DEPRECATEDIN_3_0
495int (*RSA_meth_get_pub_enc(const RSA_METHOD *meth))(int flen,
496 const unsigned char *from,
497 unsigned char *to,
498 RSA *rsa, int padding);
499OSSL_DEPRECATEDIN_3_0
500int RSA_meth_set_pub_enc(RSA_METHOD *rsa,
501 int (*pub_enc)(int flen, const unsigned char *from,
502 unsigned char *to, RSA *rsa,
503 int padding));
504OSSL_DEPRECATEDIN_3_0
505int (*RSA_meth_get_pub_dec(const RSA_METHOD *meth))(int flen,
506 const unsigned char *from,
507 unsigned char *to,
508 RSA *rsa, int padding);
509OSSL_DEPRECATEDIN_3_0
510int RSA_meth_set_pub_dec(RSA_METHOD *rsa,
511 int (*pub_dec)(int flen, const unsigned char *from,
512 unsigned char *to, RSA *rsa,
513 int padding));
514OSSL_DEPRECATEDIN_3_0
515int (*RSA_meth_get_priv_enc(const RSA_METHOD *meth))(int flen,
516 const unsigned char *from,
517 unsigned char *to,
518 RSA *rsa, int padding);
519OSSL_DEPRECATEDIN_3_0
520int RSA_meth_set_priv_enc(RSA_METHOD *rsa,
521 int (*priv_enc)(int flen, const unsigned char *from,
522 unsigned char *to, RSA *rsa,
523 int padding));
524OSSL_DEPRECATEDIN_3_0
525int (*RSA_meth_get_priv_dec(const RSA_METHOD *meth))(int flen,
526 const unsigned char *from,
527 unsigned char *to,
528 RSA *rsa, int padding);
529OSSL_DEPRECATEDIN_3_0
530int RSA_meth_set_priv_dec(RSA_METHOD *rsa,
531 int (*priv_dec)(int flen, const unsigned char *from,
532 unsigned char *to, RSA *rsa,
533 int padding));
534OSSL_DEPRECATEDIN_3_0
535int (*RSA_meth_get_mod_exp(const RSA_METHOD *meth))(BIGNUM *r0,
536 const BIGNUM *i,
537 RSA *rsa, BN_CTX *ctx);
538OSSL_DEPRECATEDIN_3_0
539int RSA_meth_set_mod_exp(RSA_METHOD *rsa,
540 int (*mod_exp)(BIGNUM *r0, const BIGNUM *i, RSA *rsa,
541 BN_CTX *ctx));
542OSSL_DEPRECATEDIN_3_0
543int (*RSA_meth_get_bn_mod_exp(const RSA_METHOD *meth))(BIGNUM *r,
544 const BIGNUM *a,
545 const BIGNUM *p,
546 const BIGNUM *m,
547 BN_CTX *ctx,
548 BN_MONT_CTX *m_ctx);
549OSSL_DEPRECATEDIN_3_0
550int RSA_meth_set_bn_mod_exp(RSA_METHOD *rsa,
551 int (*bn_mod_exp)(BIGNUM *r,
552 const BIGNUM *a,
553 const BIGNUM *p,
554 const BIGNUM *m,
555 BN_CTX *ctx,
556 BN_MONT_CTX *m_ctx));
557OSSL_DEPRECATEDIN_3_0
558int (*RSA_meth_get_init(const RSA_METHOD *meth))(RSA *rsa);
559OSSL_DEPRECATEDIN_3_0
560int RSA_meth_set_init(RSA_METHOD *rsa, int (*init)(RSA *rsa));
561OSSL_DEPRECATEDIN_3_0
562int (*RSA_meth_get_finish(const RSA_METHOD *meth))(RSA *rsa);
563OSSL_DEPRECATEDIN_3_0
564int RSA_meth_set_finish(RSA_METHOD *rsa, int (*finish)(RSA *rsa));
565OSSL_DEPRECATEDIN_3_0
566int (*RSA_meth_get_sign(const RSA_METHOD *meth))(int type,
567 const unsigned char *m,
568 unsigned int m_length,
569 unsigned char *sigret,
570 unsigned int *siglen,
571 const RSA *rsa);
572OSSL_DEPRECATEDIN_3_0
573int RSA_meth_set_sign(RSA_METHOD *rsa,
574 int (*sign)(int type, const unsigned char *m,
575 unsigned int m_length,
576 unsigned char *sigret, unsigned int *siglen,
577 const RSA *rsa));
578OSSL_DEPRECATEDIN_3_0
579int (*RSA_meth_get_verify(const RSA_METHOD *meth))(int dtype,
580 const unsigned char *m,
581 unsigned int m_length,
582 const unsigned char *sigbuf,
583 unsigned int siglen,
584 const RSA *rsa);
585OSSL_DEPRECATEDIN_3_0
586int RSA_meth_set_verify(RSA_METHOD *rsa,
587 int (*verify)(int dtype, const unsigned char *m,
588 unsigned int m_length,
589 const unsigned char *sigbuf,
590 unsigned int siglen, const RSA *rsa));
591OSSL_DEPRECATEDIN_3_0
592int (*RSA_meth_get_keygen(const RSA_METHOD *meth))(RSA *rsa, int bits,
593 BIGNUM *e, BN_GENCB *cb);
594OSSL_DEPRECATEDIN_3_0
595int RSA_meth_set_keygen(RSA_METHOD *rsa,
596 int (*keygen)(RSA *rsa, int bits, BIGNUM *e,
597 BN_GENCB *cb));
598OSSL_DEPRECATEDIN_3_0
599int (*RSA_meth_get_multi_prime_keygen(const RSA_METHOD *meth))(RSA *rsa,
600 int bits,
601 int primes,
602 BIGNUM *e,
603 BN_GENCB *cb);
604OSSL_DEPRECATEDIN_3_0
605int RSA_meth_set_multi_prime_keygen(RSA_METHOD *meth,
606 int (*keygen)(RSA *rsa, int bits,
607 int primes, BIGNUM *e,
608 BN_GENCB *cb));
609#endif /* !OPENSSL_NO_DEPRECATED_3_0 */
610
611#ifdef __cplusplus
612}
613#endif
614#endif
615