-/* crypto/rsa/rsa_lib.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <openssl/crypto.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/lhash.h>
#include "internal/bn_int.h"
-#include <openssl/rsa.h>
#include <openssl/rand.h>
-#ifndef OPENSSL_NO_ENGINE
-# include <openssl/engine.h>
-#endif
-
-const char RSA_version[] = "RSA" OPENSSL_VERSION_PTEXT;
+#include <openssl/engine.h>
+#include "rsa_locl.h"
static const RSA_METHOD *default_RSA_meth = NULL;
#ifdef RSA_NULL
default_RSA_meth = RSA_null_method();
#else
- default_RSA_meth = RSA_PKCS1_SSLeay();
+ default_RSA_meth = RSA_PKCS1_OpenSSL();
#endif
}
if (mtmp->finish)
mtmp->finish(rsa);
#ifndef OPENSSL_NO_ENGINE
- if (rsa->engine) {
- ENGINE_finish(rsa->engine);
- rsa->engine = NULL;
- }
+ ENGINE_finish(rsa->engine);
+ rsa->engine = NULL;
#endif
rsa->meth = meth;
if (meth->init)
RSA *RSA_new_method(ENGINE *engine)
{
- RSA *ret;
+ RSA *ret = OPENSSL_zalloc(sizeof(*ret));
- ret = (RSA *)OPENSSL_malloc(sizeof(RSA));
if (ret == NULL) {
RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
return NULL;
}
+ ret->references = 1;
+ ret->lock = CRYPTO_THREAD_lock_new();
+ if (ret->lock == NULL) {
+ RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
+ OPENSSL_free(ret);
+ return NULL;
+ }
+
ret->meth = RSA_get_default_method();
#ifndef OPENSSL_NO_ENGINE
+ ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
if (engine) {
if (!ENGINE_init(engine)) {
RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
- OPENSSL_free(ret);
- return NULL;
+ goto err;
}
ret->engine = engine;
} else
ret->engine = ENGINE_get_default_RSA();
if (ret->engine) {
ret->meth = ENGINE_get_RSA(ret->engine);
- if (!ret->meth) {
+ if (ret->meth == NULL) {
RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
- ENGINE_finish(ret->engine);
- OPENSSL_free(ret);
- return NULL;
+ goto err;
}
}
#endif
- ret->pad = 0;
- ret->version = 0;
- ret->n = NULL;
- ret->e = NULL;
- ret->d = NULL;
- ret->p = NULL;
- ret->q = NULL;
- ret->dmp1 = NULL;
- ret->dmq1 = NULL;
- ret->iqmp = NULL;
- ret->references = 1;
- ret->_method_mod_n = NULL;
- ret->_method_mod_p = NULL;
- ret->_method_mod_q = NULL;
- ret->blinding = NULL;
- ret->mt_blinding = NULL;
- ret->bignum_data = NULL;
ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) {
-#ifndef OPENSSL_NO_ENGINE
- if (ret->engine)
- ENGINE_finish(ret->engine);
-#endif
- OPENSSL_free(ret);
- return (NULL);
+ goto err;
}
if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
-#ifndef OPENSSL_NO_ENGINE
- if (ret->engine)
- ENGINE_finish(ret->engine);
-#endif
- CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data);
- OPENSSL_free(ret);
- ret = NULL;
+ RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_INIT_FAIL);
+ goto err;
}
- return (ret);
+
+ return ret;
+
+err:
+ RSA_free(ret);
+ return NULL;
}
void RSA_free(RSA *r)
if (r == NULL)
return;
- i = CRYPTO_add(&r->references, -1, CRYPTO_LOCK_RSA);
-#ifdef REF_PRINT
- REF_PRINT("RSA", r);
-#endif
+ CRYPTO_atomic_add(&r->references, -1, &i, r->lock);
+ REF_PRINT_COUNT("RSA", r);
if (i > 0)
return;
-#ifdef REF_CHECK
- if (i < 0) {
- fprintf(stderr, "RSA_free, bad reference count\n");
- abort();
- }
-#endif
+ REF_ASSERT_ISNT(i < 0);
if (r->meth->finish)
r->meth->finish(r);
#ifndef OPENSSL_NO_ENGINE
- if (r->engine)
- ENGINE_finish(r->engine);
+ ENGINE_finish(r->engine);
#endif
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data);
- if (r->n != NULL)
- BN_clear_free(r->n);
- if (r->e != NULL)
- BN_clear_free(r->e);
- if (r->d != NULL)
- BN_clear_free(r->d);
- if (r->p != NULL)
- BN_clear_free(r->p);
- if (r->q != NULL)
- BN_clear_free(r->q);
- if (r->dmp1 != NULL)
- BN_clear_free(r->dmp1);
- if (r->dmq1 != NULL)
- BN_clear_free(r->dmq1);
- if (r->iqmp != NULL)
- BN_clear_free(r->iqmp);
- if (r->blinding != NULL)
- BN_BLINDING_free(r->blinding);
- if (r->mt_blinding != NULL)
- BN_BLINDING_free(r->mt_blinding);
- if (r->bignum_data != NULL)
- OPENSSL_free_locked(r->bignum_data);
+ CRYPTO_THREAD_lock_free(r->lock);
+
+ BN_clear_free(r->n);
+ BN_clear_free(r->e);
+ BN_clear_free(r->d);
+ BN_clear_free(r->p);
+ BN_clear_free(r->q);
+ BN_clear_free(r->dmp1);
+ BN_clear_free(r->dmq1);
+ BN_clear_free(r->iqmp);
+ BN_BLINDING_free(r->blinding);
+ BN_BLINDING_free(r->mt_blinding);
+ OPENSSL_free(r->bignum_data);
OPENSSL_free(r);
}
int RSA_up_ref(RSA *r)
{
- int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_RSA);
-#ifdef REF_PRINT
- REF_PRINT("RSA", r);
-#endif
-#ifdef REF_CHECK
- if (i < 2) {
- fprintf(stderr, "RSA_up_ref, bad reference count\n");
- abort();
- }
-#endif
- return ((i > 1) ? 1 : 0);
-}
+ int i;
-int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
- CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
-{
- return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, argl, argp,
- new_func, dup_func, free_func);
+ if (CRYPTO_atomic_add(&r->references, 1, &i, r->lock) <= 0)
+ return 0;
+
+ REF_PRINT_COUNT("RSA", r);
+ REF_ASSERT_ISNT(i < 2);
+ return ((i > 1) ? 1 : 0);
}
int RSA_set_ex_data(RSA *r, int idx, void *arg)
j = 1;
for (i = 0; i < 6; i++)
j += bn_get_top(*t[i]);
- if ((p = OPENSSL_malloc_locked((off + j) * sizeof(BN_ULONG))) == NULL) {
+ if ((p = OPENSSL_malloc((off + j) * sizeof(*p))) == NULL) {
RSAerr(RSA_F_RSA_MEMORY_LOCK, ERR_R_MALLOC_FAILURE);
return (0);
}
- memset(p, 0, (off + j) * sizeof(BN_ULONG));
+ memset(p, 0, sizeof(*p) * (off + j));
bn = (BIGNUM *)p;
ul = (BN_ULONG *)&(p[off]);
for (i = 0; i < 6; i++) {
b = *(t[i]);
*(t[i]) = bn_array_el(bn, i);
- memcpy((char *)bn_array_el(bn, i), (char *)b, bn_sizeof_BIGNUM());
- memcpy((char *)ul, bn_get_words(b), sizeof(BN_ULONG) * bn_get_top(b));
+ memcpy(bn_array_el(bn, i), b, bn_sizeof_BIGNUM());
+ memcpy(ul, bn_get_words(b), sizeof(*ul) * bn_get_top(b));
bn_set_static_words(bn_array_el(bn, i), ul, bn_get_top(b));
ul += bn_get_top(b);
BN_clear_free(b);
{
return BN_security_bits(BN_num_bits(rsa->n), -1);
}
+
+int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d)
+{
+ /* If the fields n and e in r are NULL, the corresponding input
+ * parameters MUST be non-NULL for n and e. d may be
+ * left NULL (in case only the public key is used).
+ */
+ if ((r->n == NULL && n == NULL)
+ || (r->e == NULL && e == NULL))
+ return 0;
+
+ if (n != NULL) {
+ BN_free(r->n);
+ r->n = n;
+ }
+ if (e != NULL) {
+ BN_free(r->e);
+ r->e = e;
+ }
+ if (d != NULL) {
+ BN_free(r->d);
+ r->d = d;
+ }
+
+ return 1;
+}
+
+int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q)
+{
+ /* If the fields p and q in r are NULL, the corresponding input
+ * parameters MUST be non-NULL.
+ */
+ if ((r->p == NULL && p == NULL)
+ || (r->q == NULL && q == NULL))
+ return 0;
+
+ if (p != NULL) {
+ BN_free(r->p);
+ r->p = p;
+ }
+ if (q != NULL) {
+ BN_free(r->q);
+ r->q = q;
+ }
+
+ return 1;
+}
+
+int RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp)
+{
+ /* If the fields dmp1, dmq1 and iqmp in r are NULL, the corresponding input
+ * parameters MUST be non-NULL.
+ */
+ if ((r->dmp1 == NULL && dmp1 == NULL)
+ || (r->dmq1 == NULL && dmq1 == NULL)
+ || (r->iqmp == NULL && iqmp == NULL))
+ return 0;
+
+ if (dmp1 != NULL) {
+ BN_free(r->dmp1);
+ r->dmp1 = dmp1;
+ }
+ if (dmq1 != NULL) {
+ BN_free(r->dmq1);
+ r->dmq1 = dmq1;
+ }
+ if (iqmp != NULL) {
+ BN_free(r->iqmp);
+ r->iqmp = iqmp;
+ }
+
+ return 1;
+}
+
+void RSA_get0_key(const RSA *r,
+ const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
+{
+ if (n != NULL)
+ *n = r->n;
+ if (e != NULL)
+ *e = r->e;
+ if (d != NULL)
+ *d = r->d;
+}
+
+void RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q)
+{
+ if (p != NULL)
+ *p = r->p;
+ if (q != NULL)
+ *q = r->q;
+}
+
+void RSA_get0_crt_params(const RSA *r,
+ const BIGNUM **dmp1, const BIGNUM **dmq1,
+ const BIGNUM **iqmp)
+{
+ if (dmp1 != NULL)
+ *dmp1 = r->dmp1;
+ if (dmq1 != NULL)
+ *dmq1 = r->dmq1;
+ if (iqmp != NULL)
+ *iqmp = r->iqmp;
+}
+
+void RSA_clear_flags(RSA *r, int flags)
+{
+ r->flags &= ~flags;
+}
+
+int RSA_test_flags(const RSA *r, int flags)
+{
+ return r->flags & flags;
+}
+
+void RSA_set_flags(RSA *r, int flags)
+{
+ r->flags |= flags;
+}
+
+ENGINE *RSA_get0_engine(RSA *r)
+{
+ return r->engine;
+}
projects / openssl.git / blobdiff