2 * Copyright 1995-2016 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
11 #include <openssl/crypto.h>
12 #include "internal/cryptlib.h"
13 #include <openssl/lhash.h>
14 #include "internal/bn_int.h"
15 #include <openssl/engine.h>
16 #include <openssl/evp.h>
17 #include "internal/evp_int.h"
22 return RSA_new_method(NULL);
25 const RSA_METHOD *RSA_get_method(const RSA *rsa)
30 int RSA_set_method(RSA *rsa, const RSA_METHOD *meth)
33 * NB: The caller is specifically setting a method, so it's not up to us
34 * to deal with which ENGINE it comes from.
36 const RSA_METHOD *mtmp;
40 #ifndef OPENSSL_NO_ENGINE
41 ENGINE_finish(rsa->engine);
50 RSA *RSA_new_method(ENGINE *engine)
52 RSA *ret = OPENSSL_zalloc(sizeof(*ret));
55 RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
60 ret->lock = CRYPTO_THREAD_lock_new();
61 if (ret->lock == NULL) {
62 RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
67 ret->meth = RSA_get_default_method();
68 #ifndef OPENSSL_NO_ENGINE
69 ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
71 if (!ENGINE_init(engine)) {
72 RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
77 ret->engine = ENGINE_get_default_RSA();
79 ret->meth = ENGINE_get_RSA(ret->engine);
80 if (ret->meth == NULL) {
81 RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
87 ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
88 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) {
92 if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
93 RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_INIT_FAIL);
104 void RSA_free(RSA *r)
111 CRYPTO_DOWN_REF(&r->references, &i, r->lock);
112 REF_PRINT_COUNT("RSA", r);
115 REF_ASSERT_ISNT(i < 0);
119 #ifndef OPENSSL_NO_ENGINE
120 ENGINE_finish(r->engine);
123 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data);
125 CRYPTO_THREAD_lock_free(r->lock);
132 BN_clear_free(r->dmp1);
133 BN_clear_free(r->dmq1);
134 BN_clear_free(r->iqmp);
135 RSA_PSS_PARAMS_free(r->pss);
136 BN_BLINDING_free(r->blinding);
137 BN_BLINDING_free(r->mt_blinding);
138 OPENSSL_free(r->bignum_data);
142 int RSA_up_ref(RSA *r)
146 if (CRYPTO_UP_REF(&r->references, &i, r->lock) <= 0)
149 REF_PRINT_COUNT("RSA", r);
150 REF_ASSERT_ISNT(i < 2);
151 return ((i > 1) ? 1 : 0);
154 int RSA_set_ex_data(RSA *r, int idx, void *arg)
156 return (CRYPTO_set_ex_data(&r->ex_data, idx, arg));
159 void *RSA_get_ex_data(const RSA *r, int idx)
161 return (CRYPTO_get_ex_data(&r->ex_data, idx));
164 int RSA_security_bits(const RSA *rsa)
166 return BN_security_bits(BN_num_bits(rsa->n), -1);
169 int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d)
171 /* If the fields n and e in r are NULL, the corresponding input
172 * parameters MUST be non-NULL for n and e. d may be
173 * left NULL (in case only the public key is used).
175 if ((r->n == NULL && n == NULL)
176 || (r->e == NULL && e == NULL))
195 int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q)
197 /* If the fields p and q in r are NULL, the corresponding input
198 * parameters MUST be non-NULL.
200 if ((r->p == NULL && p == NULL)
201 || (r->q == NULL && q == NULL))
216 int RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp)
218 /* If the fields dmp1, dmq1 and iqmp in r are NULL, the corresponding input
219 * parameters MUST be non-NULL.
221 if ((r->dmp1 == NULL && dmp1 == NULL)
222 || (r->dmq1 == NULL && dmq1 == NULL)
223 || (r->iqmp == NULL && iqmp == NULL))
242 void RSA_get0_key(const RSA *r,
243 const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
253 void RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q)
261 void RSA_get0_crt_params(const RSA *r,
262 const BIGNUM **dmp1, const BIGNUM **dmq1,
273 void RSA_clear_flags(RSA *r, int flags)
278 int RSA_test_flags(const RSA *r, int flags)
280 return r->flags & flags;
283 void RSA_set_flags(RSA *r, int flags)
288 ENGINE *RSA_get0_engine(const RSA *r)
293 int RSA_pkey_ctx_ctrl(EVP_PKEY_CTX *ctx, int optype, int cmd, int p1, void *p2)
295 /* If key type not RSA or RSA-PSS return error */
296 if (ctx != NULL && ctx->pmeth != NULL
297 && ctx->pmeth->pkey_id != EVP_PKEY_RSA
298 && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
300 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, p1, p2);