1/*
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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 HEADER_RSA_H
11# define HEADER_RSA_H
12
13# include <openssl/opensslconf.h>
14
15# ifndef OPENSSL_NO_RSA
16# include <openssl/asn1.h>
17# include <openssl/bio.h>
18# include <openssl/crypto.h>
19# include <openssl/ossl_typ.h>
20# if OPENSSL_API_COMPAT < 0x10100000L
21# include <openssl/bn.h>
22# endif
23# include <openssl/rsaerr.h>
24# ifdef __cplusplus
25extern "C" {
26# endif
27
28/* The types RSA and RSA_METHOD are defined in ossl_typ.h */
29
30# ifndef OPENSSL_RSA_MAX_MODULUS_BITS
31# define OPENSSL_RSA_MAX_MODULUS_BITS 16384
32# endif
33
34# define OPENSSL_RSA_FIPS_MIN_MODULUS_BITS 1024
35
36# ifndef OPENSSL_RSA_SMALL_MODULUS_BITS
37# define OPENSSL_RSA_SMALL_MODULUS_BITS 3072
38# endif
39# ifndef OPENSSL_RSA_MAX_PUBEXP_BITS
40
41/* exponent limit enforced for "large" modulus only */
42# define OPENSSL_RSA_MAX_PUBEXP_BITS 64
43# endif
44
45# define RSA_3 0x3L
46# define RSA_F4 0x10001L
47
48/* based on RFC 8017 appendix A.1.2 */
49# define RSA_ASN1_VERSION_DEFAULT 0
50# define RSA_ASN1_VERSION_MULTI 1
51
52# define RSA_DEFAULT_PRIME_NUM 2
53
54# define RSA_METHOD_FLAG_NO_CHECK 0x0001/* don't check pub/private
55 * match */
56
57# define RSA_FLAG_CACHE_PUBLIC 0x0002
58# define RSA_FLAG_CACHE_PRIVATE 0x0004
59# define RSA_FLAG_BLINDING 0x0008
60# define RSA_FLAG_THREAD_SAFE 0x0010
61/*
62 * This flag means the private key operations will be handled by rsa_mod_exp
63 * and that they do not depend on the private key components being present:
64 * for example a key stored in external hardware. Without this flag
65 * bn_mod_exp gets called when private key components are absent.
66 */
67# define RSA_FLAG_EXT_PKEY 0x0020
68
69/*
70 * new with 0.9.6j and 0.9.7b; the built-in
71 * RSA implementation now uses blinding by
72 * default (ignoring RSA_FLAG_BLINDING),
73 * but other engines might not need it
74 */
75# define RSA_FLAG_NO_BLINDING 0x0080
76# if OPENSSL_API_COMPAT < 0x10100000L
77/*
78 * Does nothing. Previously this switched off constant time behaviour.
79 */
80# define RSA_FLAG_NO_CONSTTIME 0x0000
81# endif
82# if OPENSSL_API_COMPAT < 0x00908000L
83/* deprecated name for the flag*/
84/*
85 * new with 0.9.7h; the built-in RSA
86 * implementation now uses constant time
87 * modular exponentiation for secret exponents
88 * by default. This flag causes the
89 * faster variable sliding window method to
90 * be used for all exponents.
91 */
92# define RSA_FLAG_NO_EXP_CONSTTIME RSA_FLAG_NO_CONSTTIME
93# endif
94
95# define EVP_PKEY_CTX_set_rsa_padding(ctx, pad) \
96 RSA_pkey_ctx_ctrl(ctx, -1, EVP_PKEY_CTRL_RSA_PADDING, pad, NULL)
97
98# define EVP_PKEY_CTX_get_rsa_padding(ctx, ppad) \
99 RSA_pkey_ctx_ctrl(ctx, -1, EVP_PKEY_CTRL_GET_RSA_PADDING, 0, ppad)
100
101# define EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, len) \
102 RSA_pkey_ctx_ctrl(ctx, (EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
103 EVP_PKEY_CTRL_RSA_PSS_SALTLEN, len, NULL)
104/* Salt length matches digest */
105# define RSA_PSS_SALTLEN_DIGEST -1
106/* Verify only: auto detect salt length */
107# define RSA_PSS_SALTLEN_AUTO -2
108/* Set salt length to maximum possible */
109# define RSA_PSS_SALTLEN_MAX -3
110/* Old compatible max salt length for sign only */
111# define RSA_PSS_SALTLEN_MAX_SIGN -2
112
113# define EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen(ctx, len) \
114 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA_PSS, EVP_PKEY_OP_KEYGEN, \
115 EVP_PKEY_CTRL_RSA_PSS_SALTLEN, len, NULL)
116
117# define EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, plen) \
118 RSA_pkey_ctx_ctrl(ctx, (EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
119 EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN, 0, plen)
120
121# define EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, bits) \
122 RSA_pkey_ctx_ctrl(ctx, EVP_PKEY_OP_KEYGEN, \
123 EVP_PKEY_CTRL_RSA_KEYGEN_BITS, bits, NULL)
124
125# define EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, pubexp) \
126 RSA_pkey_ctx_ctrl(ctx, EVP_PKEY_OP_KEYGEN, \
127 EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP, 0, pubexp)
128
129# define EVP_PKEY_CTX_set_rsa_keygen_primes(ctx, primes) \
130 RSA_pkey_ctx_ctrl(ctx, EVP_PKEY_OP_KEYGEN, \
131 EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES, primes, NULL)
132
133# define EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, md) \
134 RSA_pkey_ctx_ctrl(ctx, EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, \
135 EVP_PKEY_CTRL_RSA_MGF1_MD, 0, (void *)(md))
136
137# define EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md(ctx, md) \
138 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA_PSS, EVP_PKEY_OP_KEYGEN, \
139 EVP_PKEY_CTRL_RSA_MGF1_MD, 0, (void *)(md))
140
141# define EVP_PKEY_CTX_set_rsa_oaep_md(ctx, md) \
142 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, \
143 EVP_PKEY_CTRL_RSA_OAEP_MD, 0, (void *)(md))
144
145# define EVP_PKEY_CTX_get_rsa_mgf1_md(ctx, pmd) \
146 RSA_pkey_ctx_ctrl(ctx, EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, \
147 EVP_PKEY_CTRL_GET_RSA_MGF1_MD, 0, (void *)(pmd))
148
149# define EVP_PKEY_CTX_get_rsa_oaep_md(ctx, pmd) \
150 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, \
151 EVP_PKEY_CTRL_GET_RSA_OAEP_MD, 0, (void *)(pmd))
152
153# define EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, l, llen) \
154 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, \
155 EVP_PKEY_CTRL_RSA_OAEP_LABEL, llen, (void *)(l))
156
157# define EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, l) \
158 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, \
159 EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL, 0, (void *)(l))
160
161# define EVP_PKEY_CTX_set_rsa_pss_keygen_md(ctx, md) \
162 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA_PSS, \
163 EVP_PKEY_OP_KEYGEN, EVP_PKEY_CTRL_MD, \
164 0, (void *)(md))
165
166# define EVP_PKEY_CTRL_RSA_PADDING (EVP_PKEY_ALG_CTRL + 1)
167# define EVP_PKEY_CTRL_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 2)
168
169# define EVP_PKEY_CTRL_RSA_KEYGEN_BITS (EVP_PKEY_ALG_CTRL + 3)
170# define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 4)
171# define EVP_PKEY_CTRL_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 5)
172
173# define EVP_PKEY_CTRL_GET_RSA_PADDING (EVP_PKEY_ALG_CTRL + 6)
174# define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 7)
175# define EVP_PKEY_CTRL_GET_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 8)
176
177# define EVP_PKEY_CTRL_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 9)
178# define EVP_PKEY_CTRL_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 10)
179
180# define EVP_PKEY_CTRL_GET_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 11)
181# define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12)
182
183# define EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES (EVP_PKEY_ALG_CTRL + 13)
184
185# define RSA_PKCS1_PADDING 1
186# define RSA_SSLV23_PADDING 2
187# define RSA_NO_PADDING 3
188# define RSA_PKCS1_OAEP_PADDING 4
189# define RSA_X931_PADDING 5
190/* EVP_PKEY_ only */
191# define RSA_PKCS1_PSS_PADDING 6
192
193# define RSA_PKCS1_PADDING_SIZE 11
194
195# define RSA_set_app_data(s,arg) RSA_set_ex_data(s,0,arg)
196# define RSA_get_app_data(s) RSA_get_ex_data(s,0)
197
198RSA *RSA_new(void);
199RSA *RSA_new_method(ENGINE *engine);
200int RSA_bits(const RSA *rsa);
201int RSA_size(const RSA *rsa);
202int RSA_security_bits(const RSA *rsa);
203
204int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d);
205int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q);
206int RSA_set0_crt_params(RSA *r,BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp);
207int RSA_set0_multi_prime_params(RSA *r, BIGNUM *primes[], BIGNUM *exps[],
208 BIGNUM *coeffs[], int pnum);
209void RSA_get0_key(const RSA *r,
210 const BIGNUM **n, const BIGNUM **e, const BIGNUM **d);
211void RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q);
212int RSA_get_multi_prime_extra_count(const RSA *r);
213int RSA_get0_multi_prime_factors(const RSA *r, const BIGNUM *primes[]);
214void RSA_get0_crt_params(const RSA *r,
215 const BIGNUM **dmp1, const BIGNUM **dmq1,
216 const BIGNUM **iqmp);
217int RSA_get0_multi_prime_crt_params(const RSA *r, const BIGNUM *exps[],
218 const BIGNUM *coeffs[]);
219const BIGNUM *RSA_get0_n(const RSA *d);
220const BIGNUM *RSA_get0_e(const RSA *d);
221const BIGNUM *RSA_get0_d(const RSA *d);
222const BIGNUM *RSA_get0_p(const RSA *d);
223const BIGNUM *RSA_get0_q(const RSA *d);
224const BIGNUM *RSA_get0_dmp1(const RSA *r);
225const BIGNUM *RSA_get0_dmq1(const RSA *r);
226const BIGNUM *RSA_get0_iqmp(const RSA *r);
227void RSA_clear_flags(RSA *r, int flags);
228int RSA_test_flags(const RSA *r, int flags);
229void RSA_set_flags(RSA *r, int flags);
230int RSA_get_version(RSA *r);
231ENGINE *RSA_get0_engine(const RSA *r);
232
233/* Deprecated version */
234DEPRECATEDIN_0_9_8(RSA *RSA_generate_key(int bits, unsigned long e, void
235 (*callback) (int, int, void *),
236 void *cb_arg))
237
238/* New version */
239int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
240/* Multi-prime version */
241int RSA_generate_multi_prime_key(RSA *rsa, int bits, int primes,
242 BIGNUM *e, BN_GENCB *cb);
243
244int RSA_X931_derive_ex(RSA *rsa, BIGNUM *p1, BIGNUM *p2, BIGNUM *q1,
245 BIGNUM *q2, const BIGNUM *Xp1, const BIGNUM *Xp2,
246 const BIGNUM *Xp, const BIGNUM *Xq1, const BIGNUM *Xq2,
247 const BIGNUM *Xq, const BIGNUM *e, BN_GENCB *cb);
248int RSA_X931_generate_key_ex(RSA *rsa, int bits, const BIGNUM *e,
249 BN_GENCB *cb);
250
251int RSA_check_key(const RSA *);
252int RSA_check_key_ex(const RSA *, BN_GENCB *cb);
253 /* next 4 return -1 on error */
254int RSA_public_encrypt(int flen, const unsigned char *from,
255 unsigned char *to, RSA *rsa, int padding);
256int RSA_private_encrypt(int flen, const unsigned char *from,
257 unsigned char *to, RSA *rsa, int padding);
258int RSA_public_decrypt(int flen, const unsigned char *from,
259 unsigned char *to, RSA *rsa, int padding);
260int RSA_private_decrypt(int flen, const unsigned char *from,
261 unsigned char *to, RSA *rsa, int padding);
262void RSA_free(RSA *r);
263/* "up" the RSA object's reference count */
264int RSA_up_ref(RSA *r);
265
266int RSA_flags(const RSA *r);
267
268void RSA_set_default_method(const RSA_METHOD *meth);
269const RSA_METHOD *RSA_get_default_method(void);
270const RSA_METHOD *RSA_null_method(void);
271const RSA_METHOD *RSA_get_method(const RSA *rsa);
272int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);
273
274/* these are the actual RSA functions */
275const RSA_METHOD *RSA_PKCS1_OpenSSL(void);
276
277int RSA_pkey_ctx_ctrl(EVP_PKEY_CTX *ctx, int optype, int cmd, int p1, void *p2);
278
279DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPublicKey)
280DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPrivateKey)
281
282typedef struct rsa_pss_params_st {
283 X509_ALGOR *hashAlgorithm;
284 X509_ALGOR *maskGenAlgorithm;
285 ASN1_INTEGER *saltLength;
286 ASN1_INTEGER *trailerField;
287 /* Decoded hash algorithm from maskGenAlgorithm */
288 X509_ALGOR *maskHash;
289} RSA_PSS_PARAMS;
290
291DECLARE_ASN1_FUNCTIONS(RSA_PSS_PARAMS)
292
293typedef struct rsa_oaep_params_st {
294 X509_ALGOR *hashFunc;
295 X509_ALGOR *maskGenFunc;
296 X509_ALGOR *pSourceFunc;
297 /* Decoded hash algorithm from maskGenFunc */
298 X509_ALGOR *maskHash;
299} RSA_OAEP_PARAMS;
300
301DECLARE_ASN1_FUNCTIONS(RSA_OAEP_PARAMS)
302
303# ifndef OPENSSL_NO_STDIO
304int RSA_print_fp(FILE *fp, const RSA *r, int offset);
305# endif
306
307int RSA_print(BIO *bp, const RSA *r, int offset);
308
309/*
310 * The following 2 functions sign and verify a X509_SIG ASN1 object inside
311 * PKCS#1 padded RSA encryption
312 */
313int RSA_sign(int type, const unsigned char *m, unsigned int m_length,
314 unsigned char *sigret, unsigned int *siglen, RSA *rsa);
315int RSA_verify(int type, const unsigned char *m, unsigned int m_length,
316 const unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
317
318/*
319 * The following 2 function sign and verify a ASN1_OCTET_STRING object inside
320 * PKCS#1 padded RSA encryption
321 */
322int RSA_sign_ASN1_OCTET_STRING(int type,
323 const unsigned char *m, unsigned int m_length,
324 unsigned char *sigret, unsigned int *siglen,
325 RSA *rsa);
326int RSA_verify_ASN1_OCTET_STRING(int type, const unsigned char *m,
327 unsigned int m_length, unsigned char *sigbuf,
328 unsigned int siglen, RSA *rsa);
329
330int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
331void RSA_blinding_off(RSA *rsa);
332BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);
333
334int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen,
335 const unsigned char *f, int fl);
336int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen,
337 const unsigned char *f, int fl,
338 int rsa_len);
339int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen,
340 const unsigned char *f, int fl);
341int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen,
342 const unsigned char *f, int fl,
343 int rsa_len);
344int PKCS1_MGF1(unsigned char *mask, long len, const unsigned char *seed,
345 long seedlen, const EVP_MD *dgst);
346int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen,
347 const unsigned char *f, int fl,
348 const unsigned char *p, int pl);
349int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen,
350 const unsigned char *f, int fl, int rsa_len,
351 const unsigned char *p, int pl);
352int RSA_padding_add_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
353 const unsigned char *from, int flen,
354 const unsigned char *param, int plen,
355 const EVP_MD *md, const EVP_MD *mgf1md);
356int RSA_padding_check_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
357 const unsigned char *from, int flen,
358 int num, const unsigned char *param,
359 int plen, const EVP_MD *md,
360 const EVP_MD *mgf1md);
361int RSA_padding_add_SSLv23(unsigned char *to, int tlen,
362 const unsigned char *f, int fl);
363int RSA_padding_check_SSLv23(unsigned char *to, int tlen,
364 const unsigned char *f, int fl, int rsa_len);
365int RSA_padding_add_none(unsigned char *to, int tlen, const unsigned char *f,
366 int fl);
367int RSA_padding_check_none(unsigned char *to, int tlen,
368 const unsigned char *f, int fl, int rsa_len);
369int RSA_padding_add_X931(unsigned char *to, int tlen, const unsigned char *f,
370 int fl);
371int RSA_padding_check_X931(unsigned char *to, int tlen,
372 const unsigned char *f, int fl, int rsa_len);
373int RSA_X931_hash_id(int nid);
374
375int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
376 const EVP_MD *Hash, const unsigned char *EM,
377 int sLen);
378int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
379 const unsigned char *mHash, const EVP_MD *Hash,
380 int sLen);
381
382int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
383 const EVP_MD *Hash, const EVP_MD *mgf1Hash,
384 const unsigned char *EM, int sLen);
385
386int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
387 const unsigned char *mHash,
388 const EVP_MD *Hash, const EVP_MD *mgf1Hash,
389 int sLen);
390
391#define RSA_get_ex_new_index(l, p, newf, dupf, freef) \
392 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, l, p, newf, dupf, freef)
393int RSA_set_ex_data(RSA *r, int idx, void *arg);
394void *RSA_get_ex_data(const RSA *r, int idx);
395
396RSA *RSAPublicKey_dup(RSA *rsa);
397RSA *RSAPrivateKey_dup(RSA *rsa);
398
399/*
400 * If this flag is set the RSA method is FIPS compliant and can be used in
401 * FIPS mode. This is set in the validated module method. If an application
402 * sets this flag in its own methods it is its responsibility to ensure the
403 * result is compliant.
404 */
405
406# define RSA_FLAG_FIPS_METHOD 0x0400
407
408/*
409 * If this flag is set the operations normally disabled in FIPS mode are
410 * permitted it is then the applications responsibility to ensure that the
411 * usage is compliant.
412 */
413
414# define RSA_FLAG_NON_FIPS_ALLOW 0x0400
415/*
416 * Application has decided PRNG is good enough to generate a key: don't
417 * check.
418 */
419# define RSA_FLAG_CHECKED 0x0800
420
421RSA_METHOD *RSA_meth_new(const char *name, int flags);
422void RSA_meth_free(RSA_METHOD *meth);
423RSA_METHOD *RSA_meth_dup(const RSA_METHOD *meth);
424const char *RSA_meth_get0_name(const RSA_METHOD *meth);
425int RSA_meth_set1_name(RSA_METHOD *meth, const char *name);
426int RSA_meth_get_flags(const RSA_METHOD *meth);
427int RSA_meth_set_flags(RSA_METHOD *meth, int flags);
428void *RSA_meth_get0_app_data(const RSA_METHOD *meth);
429int RSA_meth_set0_app_data(RSA_METHOD *meth, void *app_data);
430int (*RSA_meth_get_pub_enc(const RSA_METHOD *meth))
431 (int flen, const unsigned char *from,
432 unsigned char *to, RSA *rsa, int padding);
433int RSA_meth_set_pub_enc(RSA_METHOD *rsa,
434 int (*pub_enc) (int flen, const unsigned char *from,
435 unsigned char *to, RSA *rsa,
436 int padding));
437int (*RSA_meth_get_pub_dec(const RSA_METHOD *meth))
438 (int flen, const unsigned char *from,
439 unsigned char *to, RSA *rsa, int padding);
440int RSA_meth_set_pub_dec(RSA_METHOD *rsa,
441 int (*pub_dec) (int flen, const unsigned char *from,
442 unsigned char *to, RSA *rsa,
443 int padding));
444int (*RSA_meth_get_priv_enc(const RSA_METHOD *meth))
445 (int flen, const unsigned char *from,
446 unsigned char *to, RSA *rsa, int padding);
447int RSA_meth_set_priv_enc(RSA_METHOD *rsa,
448 int (*priv_enc) (int flen, const unsigned char *from,
449 unsigned char *to, RSA *rsa,
450 int padding));
451int (*RSA_meth_get_priv_dec(const RSA_METHOD *meth))
452 (int flen, const unsigned char *from,
453 unsigned char *to, RSA *rsa, int padding);
454int RSA_meth_set_priv_dec(RSA_METHOD *rsa,
455 int (*priv_dec) (int flen, const unsigned char *from,
456 unsigned char *to, RSA *rsa,
457 int padding));
458int (*RSA_meth_get_mod_exp(const RSA_METHOD *meth))
459 (BIGNUM *r0, const BIGNUM *i, RSA *rsa, BN_CTX *ctx);
460int RSA_meth_set_mod_exp(RSA_METHOD *rsa,
461 int (*mod_exp) (BIGNUM *r0, const BIGNUM *i, RSA *rsa,
462 BN_CTX *ctx));
463int (*RSA_meth_get_bn_mod_exp(const RSA_METHOD *meth))
464 (BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
465 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
466int RSA_meth_set_bn_mod_exp(RSA_METHOD *rsa,
467 int (*bn_mod_exp) (BIGNUM *r,
468 const BIGNUM *a,
469 const BIGNUM *p,
470 const BIGNUM *m,
471 BN_CTX *ctx,
472 BN_MONT_CTX *m_ctx));
473int (*RSA_meth_get_init(const RSA_METHOD *meth)) (RSA *rsa);
474int RSA_meth_set_init(RSA_METHOD *rsa, int (*init) (RSA *rsa));
475int (*RSA_meth_get_finish(const RSA_METHOD *meth)) (RSA *rsa);
476int RSA_meth_set_finish(RSA_METHOD *rsa, int (*finish) (RSA *rsa));
477int (*RSA_meth_get_sign(const RSA_METHOD *meth))
478 (int type,
479 const unsigned char *m, unsigned int m_length,
480 unsigned char *sigret, unsigned int *siglen,
481 const RSA *rsa);
482int RSA_meth_set_sign(RSA_METHOD *rsa,
483 int (*sign) (int type, const unsigned char *m,
484 unsigned int m_length,
485 unsigned char *sigret, unsigned int *siglen,
486 const RSA *rsa));
487int (*RSA_meth_get_verify(const RSA_METHOD *meth))
488 (int dtype, const unsigned char *m,
489 unsigned int m_length, const unsigned char *sigbuf,
490 unsigned int siglen, const RSA *rsa);
491int RSA_meth_set_verify(RSA_METHOD *rsa,
492 int (*verify) (int dtype, const unsigned char *m,
493 unsigned int m_length,
494 const unsigned char *sigbuf,
495 unsigned int siglen, const RSA *rsa));
496int (*RSA_meth_get_keygen(const RSA_METHOD *meth))
497 (RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
498int RSA_meth_set_keygen(RSA_METHOD *rsa,
499 int (*keygen) (RSA *rsa, int bits, BIGNUM *e,
500 BN_GENCB *cb));
501int (*RSA_meth_get_multi_prime_keygen(const RSA_METHOD *meth))
502 (RSA *rsa, int bits, int primes, BIGNUM *e, BN_GENCB *cb);
503int RSA_meth_set_multi_prime_keygen(RSA_METHOD *meth,
504 int (*keygen) (RSA *rsa, int bits,
505 int primes, BIGNUM *e,
506 BN_GENCB *cb));
507
508# ifdef __cplusplus
509}
510# endif
511# endif
512#endif
513