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git.ipfire.org Git - thirdparty/openssl.git/blob - include/openssl/rsa.h
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
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
13 # include <openssl/opensslconf.h>
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>
23 # include <openssl/rsaerr.h>
28 /* The types RSA and RSA_METHOD are defined in ossl_typ.h */
30 # ifndef OPENSSL_RSA_MAX_MODULUS_BITS
31 # define OPENSSL_RSA_MAX_MODULUS_BITS 16384
34 # define OPENSSL_RSA_FIPS_MIN_MODULUS_BITS 1024
36 # ifndef OPENSSL_RSA_SMALL_MODULUS_BITS
37 # define OPENSSL_RSA_SMALL_MODULUS_BITS 3072
39 # ifndef OPENSSL_RSA_MAX_PUBEXP_BITS
41 /* exponent limit enforced for "large" modulus only */
42 # define OPENSSL_RSA_MAX_PUBEXP_BITS 64
46 # define RSA_F4 0x10001L
48 /* based on RFC 8017 appendix A.1.2 */
49 # define RSA_ASN1_VERSION_DEFAULT 0
50 # define RSA_ASN1_VERSION_MULTI 1
52 # define RSA_DEFAULT_PRIME_NUM 2
54 # define RSA_METHOD_FLAG_NO_CHECK 0x0001/* don't check pub/private
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
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.
67 # define RSA_FLAG_EXT_PKEY 0x0020
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
75 # define RSA_FLAG_NO_BLINDING 0x0080
76 # if OPENSSL_API_COMPAT < 0x10100000L
78 * Does nothing. Previously this switched off constant time behaviour.
80 # define RSA_FLAG_NO_CONSTTIME 0x0000
82 # if OPENSSL_API_COMPAT < 0x00908000L
83 /* deprecated name for the flag*/
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.
92 # define RSA_FLAG_NO_EXP_CONSTTIME RSA_FLAG_NO_CONSTTIME
95 # define EVP_PKEY_CTX_set_rsa_padding(ctx, pad) \
96 RSA_pkey_ctx_ctrl(ctx, -1, EVP_PKEY_CTRL_RSA_PADDING, pad, NULL)
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)
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
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)
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)
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)
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)
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)
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))
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))
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))
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))
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))
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))
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))
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_TYPE_KEYGEN, EVP_PKEY_CTRL_MD, \
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)
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)
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)
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)
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)
183 # define EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES (EVP_PKEY_ALG_CTRL + 13)
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
191 # define RSA_PKCS1_PSS_PADDING 6
193 # define RSA_PKCS1_PADDING_SIZE 11
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)
199 RSA
*RSA_new_method(ENGINE
*engine
);
200 int RSA_bits(const RSA
*rsa
);
201 int RSA_size(const RSA
*rsa
);
202 int RSA_security_bits(const RSA
*rsa
);
204 int RSA_set0_key(RSA
*r
, BIGNUM
*n
, BIGNUM
*e
, BIGNUM
*d
);
205 int RSA_set0_factors(RSA
*r
, BIGNUM
*p
, BIGNUM
*q
);
206 int RSA_set0_crt_params(RSA
*r
,BIGNUM
*dmp1
, BIGNUM
*dmq1
, BIGNUM
*iqmp
);
207 int RSA_set0_multi_prime_params(RSA
*r
, BIGNUM
*primes
[], BIGNUM
*exps
[],
208 BIGNUM
*coeffs
[], int pnum
);
209 void RSA_get0_key(const RSA
*r
,
210 const BIGNUM
**n
, const BIGNUM
**e
, const BIGNUM
**d
);
211 void RSA_get0_factors(const RSA
*r
, const BIGNUM
**p
, const BIGNUM
**q
);
212 int RSA_get_multi_prime_extra_count(const RSA
*r
);
213 int RSA_get0_multi_prime_factors(const RSA
*r
, const BIGNUM
*primes
[]);
214 void RSA_get0_crt_params(const RSA
*r
,
215 const BIGNUM
**dmp1
, const BIGNUM
**dmq1
,
216 const BIGNUM
**iqmp
);
217 int RSA_get0_multi_prime_crt_params(const RSA
*r
, const BIGNUM
*exps
[],
218 const BIGNUM
*coeffs
[]);
219 void RSA_clear_flags(RSA
*r
, int flags
);
220 int RSA_test_flags(const RSA
*r
, int flags
);
221 void RSA_set_flags(RSA
*r
, int flags
);
222 int RSA_get_version(RSA
*r
);
223 ENGINE
*RSA_get0_engine(const RSA
*r
);
225 /* Deprecated version */
226 DEPRECATEDIN_0_9_8(RSA
*RSA_generate_key(int bits
, unsigned long e
, void
227 (*callback
) (int, int, void *),
231 int RSA_generate_key_ex(RSA
*rsa
, int bits
, BIGNUM
*e
, BN_GENCB
*cb
);
232 /* Multi-prime version */
233 int RSA_generate_multi_prime_key(RSA
*rsa
, int bits
, int primes
,
234 BIGNUM
*e
, BN_GENCB
*cb
);
236 int RSA_X931_derive_ex(RSA
*rsa
, BIGNUM
*p1
, BIGNUM
*p2
, BIGNUM
*q1
,
237 BIGNUM
*q2
, const BIGNUM
*Xp1
, const BIGNUM
*Xp2
,
238 const BIGNUM
*Xp
, const BIGNUM
*Xq1
, const BIGNUM
*Xq2
,
239 const BIGNUM
*Xq
, const BIGNUM
*e
, BN_GENCB
*cb
);
240 int RSA_X931_generate_key_ex(RSA
*rsa
, int bits
, const BIGNUM
*e
,
243 int RSA_check_key(const RSA
*);
244 int RSA_check_key_ex(const RSA
*, BN_GENCB
*cb
);
245 /* next 4 return -1 on error */
246 int RSA_public_encrypt(int flen
, const unsigned char *from
,
247 unsigned char *to
, RSA
*rsa
, int padding
);
248 int RSA_private_encrypt(int flen
, const unsigned char *from
,
249 unsigned char *to
, RSA
*rsa
, int padding
);
250 int RSA_public_decrypt(int flen
, const unsigned char *from
,
251 unsigned char *to
, RSA
*rsa
, int padding
);
252 int RSA_private_decrypt(int flen
, const unsigned char *from
,
253 unsigned char *to
, RSA
*rsa
, int padding
);
254 void RSA_free(RSA
*r
);
255 /* "up" the RSA object's reference count */
256 int RSA_up_ref(RSA
*r
);
258 int RSA_flags(const RSA
*r
);
260 void RSA_set_default_method(const RSA_METHOD
*meth
);
261 const RSA_METHOD
*RSA_get_default_method(void);
262 const RSA_METHOD
*RSA_null_method(void);
263 const RSA_METHOD
*RSA_get_method(const RSA
*rsa
);
264 int RSA_set_method(RSA
*rsa
, const RSA_METHOD
*meth
);
266 /* these are the actual RSA functions */
267 const RSA_METHOD
*RSA_PKCS1_OpenSSL(void);
269 int RSA_pkey_ctx_ctrl(EVP_PKEY_CTX
*ctx
, int optype
, int cmd
, int p1
, void *p2
);
271 DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA
, RSAPublicKey
)
272 DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA
, RSAPrivateKey
)
274 typedef struct rsa_pss_params_st
{
275 X509_ALGOR
*hashAlgorithm
;
276 X509_ALGOR
*maskGenAlgorithm
;
277 ASN1_INTEGER
*saltLength
;
278 ASN1_INTEGER
*trailerField
;
279 /* Decoded hash algorithm from maskGenAlgorithm */
280 X509_ALGOR
*maskHash
;
283 DECLARE_ASN1_FUNCTIONS(RSA_PSS_PARAMS
)
285 typedef struct rsa_oaep_params_st
{
286 X509_ALGOR
*hashFunc
;
287 X509_ALGOR
*maskGenFunc
;
288 X509_ALGOR
*pSourceFunc
;
289 /* Decoded hash algorithm from maskGenFunc */
290 X509_ALGOR
*maskHash
;
293 DECLARE_ASN1_FUNCTIONS(RSA_OAEP_PARAMS
)
295 # ifndef OPENSSL_NO_STDIO
296 int RSA_print_fp(FILE *fp
, const RSA
*r
, int offset
);
299 int RSA_print(BIO
*bp
, const RSA
*r
, int offset
);
302 * The following 2 functions sign and verify a X509_SIG ASN1 object inside
303 * PKCS#1 padded RSA encryption
305 int RSA_sign(int type
, const unsigned char *m
, unsigned int m_length
,
306 unsigned char *sigret
, unsigned int *siglen
, RSA
*rsa
);
307 int RSA_verify(int type
, const unsigned char *m
, unsigned int m_length
,
308 const unsigned char *sigbuf
, unsigned int siglen
, RSA
*rsa
);
311 * The following 2 function sign and verify a ASN1_OCTET_STRING object inside
312 * PKCS#1 padded RSA encryption
314 int RSA_sign_ASN1_OCTET_STRING(int type
,
315 const unsigned char *m
, unsigned int m_length
,
316 unsigned char *sigret
, unsigned int *siglen
,
318 int RSA_verify_ASN1_OCTET_STRING(int type
, const unsigned char *m
,
319 unsigned int m_length
, unsigned char *sigbuf
,
320 unsigned int siglen
, RSA
*rsa
);
322 int RSA_blinding_on(RSA
*rsa
, BN_CTX
*ctx
);
323 void RSA_blinding_off(RSA
*rsa
);
324 BN_BLINDING
*RSA_setup_blinding(RSA
*rsa
, BN_CTX
*ctx
);
326 int RSA_padding_add_PKCS1_type_1(unsigned char *to
, int tlen
,
327 const unsigned char *f
, int fl
);
328 int RSA_padding_check_PKCS1_type_1(unsigned char *to
, int tlen
,
329 const unsigned char *f
, int fl
,
331 int RSA_padding_add_PKCS1_type_2(unsigned char *to
, int tlen
,
332 const unsigned char *f
, int fl
);
333 int RSA_padding_check_PKCS1_type_2(unsigned char *to
, int tlen
,
334 const unsigned char *f
, int fl
,
336 int PKCS1_MGF1(unsigned char *mask
, long len
, const unsigned char *seed
,
337 long seedlen
, const EVP_MD
*dgst
);
338 int RSA_padding_add_PKCS1_OAEP(unsigned char *to
, int tlen
,
339 const unsigned char *f
, int fl
,
340 const unsigned char *p
, int pl
);
341 int RSA_padding_check_PKCS1_OAEP(unsigned char *to
, int tlen
,
342 const unsigned char *f
, int fl
, int rsa_len
,
343 const unsigned char *p
, int pl
);
344 int RSA_padding_add_PKCS1_OAEP_mgf1(unsigned char *to
, int tlen
,
345 const unsigned char *from
, int flen
,
346 const unsigned char *param
, int plen
,
347 const EVP_MD
*md
, const EVP_MD
*mgf1md
);
348 int RSA_padding_check_PKCS1_OAEP_mgf1(unsigned char *to
, int tlen
,
349 const unsigned char *from
, int flen
,
350 int num
, const unsigned char *param
,
351 int plen
, const EVP_MD
*md
,
352 const EVP_MD
*mgf1md
);
353 int RSA_padding_add_SSLv23(unsigned char *to
, int tlen
,
354 const unsigned char *f
, int fl
);
355 int RSA_padding_check_SSLv23(unsigned char *to
, int tlen
,
356 const unsigned char *f
, int fl
, int rsa_len
);
357 int RSA_padding_add_none(unsigned char *to
, int tlen
, const unsigned char *f
,
359 int RSA_padding_check_none(unsigned char *to
, int tlen
,
360 const unsigned char *f
, int fl
, int rsa_len
);
361 int RSA_padding_add_X931(unsigned char *to
, int tlen
, const unsigned char *f
,
363 int RSA_padding_check_X931(unsigned char *to
, int tlen
,
364 const unsigned char *f
, int fl
, int rsa_len
);
365 int RSA_X931_hash_id(int nid
);
367 int RSA_verify_PKCS1_PSS(RSA
*rsa
, const unsigned char *mHash
,
368 const EVP_MD
*Hash
, const unsigned char *EM
,
370 int RSA_padding_add_PKCS1_PSS(RSA
*rsa
, unsigned char *EM
,
371 const unsigned char *mHash
, const EVP_MD
*Hash
,
374 int RSA_verify_PKCS1_PSS_mgf1(RSA
*rsa
, const unsigned char *mHash
,
375 const EVP_MD
*Hash
, const EVP_MD
*mgf1Hash
,
376 const unsigned char *EM
, int sLen
);
378 int RSA_padding_add_PKCS1_PSS_mgf1(RSA
*rsa
, unsigned char *EM
,
379 const unsigned char *mHash
,
380 const EVP_MD
*Hash
, const EVP_MD
*mgf1Hash
,
383 #define RSA_get_ex_new_index(l, p, newf, dupf, freef) \
384 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, l, p, newf, dupf, freef)
385 int RSA_set_ex_data(RSA
*r
, int idx
, void *arg
);
386 void *RSA_get_ex_data(const RSA
*r
, int idx
);
388 RSA
*RSAPublicKey_dup(RSA
*rsa
);
389 RSA
*RSAPrivateKey_dup(RSA
*rsa
);
392 * If this flag is set the RSA method is FIPS compliant and can be used in
393 * FIPS mode. This is set in the validated module method. If an application
394 * sets this flag in its own methods it is its responsibility to ensure the
395 * result is compliant.
398 # define RSA_FLAG_FIPS_METHOD 0x0400
401 * If this flag is set the operations normally disabled in FIPS mode are
402 * permitted it is then the applications responsibility to ensure that the
403 * usage is compliant.
406 # define RSA_FLAG_NON_FIPS_ALLOW 0x0400
408 * Application has decided PRNG is good enough to generate a key: don't
411 # define RSA_FLAG_CHECKED 0x0800
413 RSA_METHOD
*RSA_meth_new(const char *name
, int flags
);
414 void RSA_meth_free(RSA_METHOD
*meth
);
415 RSA_METHOD
*RSA_meth_dup(const RSA_METHOD
*meth
);
416 const char *RSA_meth_get0_name(const RSA_METHOD
*meth
);
417 int RSA_meth_set1_name(RSA_METHOD
*meth
, const char *name
);
418 int RSA_meth_get_flags(const RSA_METHOD
*meth
);
419 int RSA_meth_set_flags(RSA_METHOD
*meth
, int flags
);
420 void *RSA_meth_get0_app_data(const RSA_METHOD
*meth
);
421 int RSA_meth_set0_app_data(RSA_METHOD
*meth
, void *app_data
);
422 int (*RSA_meth_get_pub_enc(const RSA_METHOD
*meth
))
423 (int flen
, const unsigned char *from
,
424 unsigned char *to
, RSA
*rsa
, int padding
);
425 int RSA_meth_set_pub_enc(RSA_METHOD
*rsa
,
426 int (*pub_enc
) (int flen
, const unsigned char *from
,
427 unsigned char *to
, RSA
*rsa
,
429 int (*RSA_meth_get_pub_dec(const RSA_METHOD
*meth
))
430 (int flen
, const unsigned char *from
,
431 unsigned char *to
, RSA
*rsa
, int padding
);
432 int RSA_meth_set_pub_dec(RSA_METHOD
*rsa
,
433 int (*pub_dec
) (int flen
, const unsigned char *from
,
434 unsigned char *to
, RSA
*rsa
,
436 int (*RSA_meth_get_priv_enc(const RSA_METHOD
*meth
))
437 (int flen
, const unsigned char *from
,
438 unsigned char *to
, RSA
*rsa
, int padding
);
439 int RSA_meth_set_priv_enc(RSA_METHOD
*rsa
,
440 int (*priv_enc
) (int flen
, const unsigned char *from
,
441 unsigned char *to
, RSA
*rsa
,
443 int (*RSA_meth_get_priv_dec(const RSA_METHOD
*meth
))
444 (int flen
, const unsigned char *from
,
445 unsigned char *to
, RSA
*rsa
, int padding
);
446 int RSA_meth_set_priv_dec(RSA_METHOD
*rsa
,
447 int (*priv_dec
) (int flen
, const unsigned char *from
,
448 unsigned char *to
, RSA
*rsa
,
450 int (*RSA_meth_get_mod_exp(const RSA_METHOD
*meth
))
451 (BIGNUM
*r0
, const BIGNUM
*I
, RSA
*rsa
, BN_CTX
*ctx
);
452 int RSA_meth_set_mod_exp(RSA_METHOD
*rsa
,
453 int (*mod_exp
) (BIGNUM
*r0
, const BIGNUM
*I
, RSA
*rsa
,
455 int (*RSA_meth_get_bn_mod_exp(const RSA_METHOD
*meth
))
456 (BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
457 const BIGNUM
*m
, BN_CTX
*ctx
, BN_MONT_CTX
*m_ctx
);
458 int RSA_meth_set_bn_mod_exp(RSA_METHOD
*rsa
,
459 int (*bn_mod_exp
) (BIGNUM
*r
,
464 BN_MONT_CTX
*m_ctx
));
465 int (*RSA_meth_get_init(const RSA_METHOD
*meth
)) (RSA
*rsa
);
466 int RSA_meth_set_init(RSA_METHOD
*rsa
, int (*init
) (RSA
*rsa
));
467 int (*RSA_meth_get_finish(const RSA_METHOD
*meth
)) (RSA
*rsa
);
468 int RSA_meth_set_finish(RSA_METHOD
*rsa
, int (*finish
) (RSA
*rsa
));
469 int (*RSA_meth_get_sign(const RSA_METHOD
*meth
))
471 const unsigned char *m
, unsigned int m_length
,
472 unsigned char *sigret
, unsigned int *siglen
,
474 int RSA_meth_set_sign(RSA_METHOD
*rsa
,
475 int (*sign
) (int type
, const unsigned char *m
,
476 unsigned int m_length
,
477 unsigned char *sigret
, unsigned int *siglen
,
479 int (*RSA_meth_get_verify(const RSA_METHOD
*meth
))
480 (int dtype
, const unsigned char *m
,
481 unsigned int m_length
, const unsigned char *sigbuf
,
482 unsigned int siglen
, const RSA
*rsa
);
483 int RSA_meth_set_verify(RSA_METHOD
*rsa
,
484 int (*verify
) (int dtype
, const unsigned char *m
,
485 unsigned int m_length
,
486 const unsigned char *sigbuf
,
487 unsigned int siglen
, const RSA
*rsa
));
488 int (*RSA_meth_get_keygen(const RSA_METHOD
*meth
))
489 (RSA
*rsa
, int bits
, BIGNUM
*e
, BN_GENCB
*cb
);
490 int RSA_meth_set_keygen(RSA_METHOD
*rsa
,
491 int (*keygen
) (RSA
*rsa
, int bits
, BIGNUM
*e
,
493 int (*RSA_meth_get_multi_prime_keygen(const RSA_METHOD
*meth
))
494 (RSA
*rsa
, int bits
, int primes
, BIGNUM
*e
, BN_GENCB
*cb
);
495 int RSA_meth_set_multi_prime_keygen(RSA_METHOD
*meth
,
496 int (*keygen
) (RSA
*rsa
, int bits
,
497 int primes
, BIGNUM
*e
,