-/* crypto/evp/p_open.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
*/
-#ifndef NO_RSA
-#include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/evp.h>
-#include <openssl/objects.h>
-#include <openssl/x509.h>
+#include "internal/cryptlib.h"
+#ifdef OPENSSL_NO_RSA
+NON_EMPTY_TRANSLATION_UNIT
+#else
-int EVP_OpenInit(EVP_CIPHER_CTX *ctx, EVP_CIPHER *type, unsigned char *ek,
- int ekl, unsigned char *iv, EVP_PKEY *priv)
- {
- unsigned char *key=NULL;
- int i,size=0,ret=0;
-
- if (priv->type != EVP_PKEY_RSA)
- {
- EVPerr(EVP_F_EVP_OPENINIT,EVP_R_PUBLIC_KEY_NOT_RSA);
- ret= -1;
- goto err;
- }
+# include <stdio.h>
+# include <openssl/evp.h>
+# include <openssl/objects.h>
+# include <openssl/x509.h>
+# include <openssl/rsa.h>
- if(type) {
- EVP_CIPHER_CTX_init(ctx);
- EVP_DecryptInit(ctx,type,NULL,NULL);
- }
+int EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
+ const unsigned char *ek, int ekl, const unsigned char *iv,
+ EVP_PKEY *priv)
+{
+ unsigned char *key = NULL;
+ int i, size = 0, ret = 0;
- size=RSA_size(priv->pkey.rsa);
- key=(unsigned char *)Malloc(size+2);
- if (key == NULL)
- {
- /* ERROR */
- EVPerr(EVP_F_EVP_OPENINIT,ERR_R_MALLOC_FAILURE);
- ret= -1;
- goto err;
- }
+ if (type) {
+ EVP_CIPHER_CTX_reset(ctx);
+ if (!EVP_DecryptInit_ex(ctx, type, NULL, NULL, NULL))
+ return 0;
+ }
- i=EVP_PKEY_decrypt(key,ek,ekl,priv);
- if ((i <= 0) || !EVP_CIPHER_CTX_set_key_length(ctx, i))
- {
- /* ERROR */
- goto err;
- }
- if(!EVP_DecryptInit(ctx,NULL,key,iv)) goto err;
+ if (!priv)
+ return 1;
- ret=1;
-err:
- if (key != NULL) memset(key,0,size);
- Free(key);
- return(ret);
- }
+ if (EVP_PKEY_id(priv) != EVP_PKEY_RSA) {
+ EVPerr(EVP_F_EVP_OPENINIT, EVP_R_PUBLIC_KEY_NOT_RSA);
+ goto err;
+ }
-int EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
- {
- int i;
+ size = EVP_PKEY_size(priv);
+ key = OPENSSL_malloc(size + 2);
+ if (key == NULL) {
+ /* ERROR */
+ EVPerr(EVP_F_EVP_OPENINIT, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ i = EVP_PKEY_decrypt_old(key, ek, ekl, priv);
+ if ((i <= 0) || !EVP_CIPHER_CTX_set_key_length(ctx, i)) {
+ /* ERROR */
+ goto err;
+ }
+ if (!EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv))
+ goto err;
- i=EVP_DecryptFinal(ctx,out,outl);
- EVP_DecryptInit(ctx,NULL,NULL,NULL);
- return(i);
- }
-#else /* !NO_RSA */
+ ret = 1;
+ err:
+ OPENSSL_clear_free(key, size);
+ return ret;
+}
-# ifdef PEDANTIC
-static void *dummy=&dummy;
-# endif
+int EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
+{
+ int i;
+ i = EVP_DecryptFinal_ex(ctx, out, outl);
+ if (i)
+ i = EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, NULL);
+ return i;
+}
#endif
projects / openssl.git / blobdiff