-/* crypto/evp/p_seal.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 "cryptlib.h"
-#include "rand.h"
-#include "rsa.h"
-#include "evp.h"
-#include "objects.h"
-#include "x509.h"
+#include "internal/cryptlib.h"
+#include <openssl/rand.h>
+#include <openssl/rsa.h>
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
-int EVP_SealInit(ctx,type,ek,ekl,iv,pubk,npubk)
-EVP_CIPHER_CTX *ctx;
-EVP_CIPHER *type;
-unsigned char **ek;
-int *ekl;
-unsigned char *iv;
-EVP_PKEY **pubk;
-int npubk;
- {
- unsigned char key[EVP_MAX_KEY_LENGTH];
- int i;
-
- if (npubk <= 0) return(0);
- RAND_bytes(key,EVP_MAX_KEY_LENGTH);
- if (type->iv_len > 0)
- RAND_bytes(iv,type->iv_len);
+int EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
+ unsigned char **ek, int *ekl, unsigned char *iv,
+ EVP_PKEY **pubk, int npubk)
+{
+ unsigned char key[EVP_MAX_KEY_LENGTH];
+ int i;
+ int rv = 0;
- EVP_CIPHER_CTX_init(ctx);
- EVP_EncryptInit(ctx,type,key,iv);
+ if (type) {
+ EVP_CIPHER_CTX_reset(ctx);
+ if (!EVP_EncryptInit_ex(ctx, type, NULL, NULL, NULL))
+ return 0;
+ }
+ if ((npubk <= 0) || !pubk)
+ return 1;
+ if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0)
+ return 0;
- for (i=0; i<npubk; i++)
- {
- ekl[i]=EVP_PKEY_encrypt(ek[i],key,EVP_CIPHER_key_length(type),
- pubk[i]);
- if (ekl[i] <= 0) return(-1);
- }
- return(npubk);
- }
+ if (EVP_CIPHER_CTX_iv_length(ctx)
+ && RAND_bytes(iv, EVP_CIPHER_CTX_iv_length(ctx)) <= 0)
+ goto err;
-/* MACRO
-void EVP_SealUpdate(ctx,out,outl,in,inl)
-EVP_CIPHER_CTX *ctx;
-unsigned char *out;
-int *outl;
-unsigned char *in;
-int inl;
- {
- EVP_EncryptUpdate(ctx,out,outl,in,inl);
- }
-*/
+ if (!EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv))
+ goto err;
-void EVP_SealFinal(ctx,out,outl)
-EVP_CIPHER_CTX *ctx;
-unsigned char *out;
-int *outl;
- {
- EVP_EncryptFinal(ctx,out,outl);
- EVP_EncryptInit(ctx,NULL,NULL,NULL);
- }
+ for (i = 0; i < npubk; i++) {
+ ekl[i] =
+ EVP_PKEY_encrypt_old(ek[i], key, EVP_CIPHER_CTX_key_length(ctx),
+ pubk[i]);
+ if (ekl[i] <= 0) {
+ rv = -1;
+ goto err;
+ }
+ }
+ rv = npubk;
+err:
+ OPENSSL_cleanse(key, sizeof(key));
+ return rv;
+}
+
+int EVP_SealFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
+{
+ int i;
+ i = EVP_EncryptFinal_ex(ctx, out, outl);
+ if (i)
+ i = EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, NULL);
+ return i;
+}
projects / openssl.git / blobdiff