-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * 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.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * 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 "internal/evp_int.h"
# include <openssl/des.h>
# include <openssl/rand.h>
+# include "evp_locl.h"
typedef struct {
union {
DES_key_schedule ks[3];
} ks;
union {
- void (*cbc) (const void *, void *, size_t, const void *, void *);
+ void (*cbc) (const void *, void *, size_t,
+ const DES_key_schedule *, unsigned char *);
} stream;
} DES_EDE_KEY;
# define ks1 ks.ks[0]
void des_t4_key_expand(const void *key, DES_key_schedule *ks);
void des_t4_ede3_cbc_encrypt(const void *inp, void *out, size_t len,
- DES_key_schedule *ks, unsigned char iv[8]);
+ const DES_key_schedule ks[3], unsigned char iv[8]);
void des_t4_ede3_cbc_decrypt(const void *inp, void *out, size_t len,
- DES_key_schedule *ks, unsigned char iv[8]);
+ const DES_key_schedule ks[3], unsigned char iv[8]);
# endif
static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
{
DES_EDE_KEY *dat = data(ctx);
- if (dat->stream.cbc) {
- (*dat->stream.cbc) (in, out, inl, &dat->ks, EVP_CIPHER_CTX_iv_noconst(ctx));
+ if (dat->stream.cbc != NULL) {
+ (*dat->stream.cbc) (in, out, inl, dat->ks.ks,
+ EVP_CIPHER_CTX_iv_noconst(ctx));
return 1;
}
while (inl >= EVP_MAXCHUNK) {
DES_ede3_cbc_encrypt(in, out, (long)EVP_MAXCHUNK,
&dat->ks1, &dat->ks2, &dat->ks3,
- (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
+ EVP_CIPHER_CTX_encrypting(ctx));
inl -= EVP_MAXCHUNK;
in += EVP_MAXCHUNK;
out += EVP_MAXCHUNK;
if (inl)
DES_ede3_cbc_encrypt(in, out, (long)inl,
&dat->ks1, &dat->ks2, &dat->ks3,
- (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
+ EVP_CIPHER_CTX_encrypting(ctx));
return 1;
}
size_t n;
unsigned char c[1], d[1];
+ if (!EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS))
+ inl *= 8;
for (n = 0; n < inl; ++n) {
c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0;
DES_ede3_cfb_encrypt(c, d, 1, 1,
&data(ctx)->ks1, &data(ctx)->ks2,
- &data(ctx)->ks3, (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
+ &data(ctx)->ks3,
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
EVP_CIPHER_CTX_encrypting(ctx));
out[n / 8] = (out[n / 8] & ~(0x80 >> (unsigned int)(n % 8)))
| ((d[0] & 0x80) >> (unsigned int)(n % 8));
while (inl >= EVP_MAXCHUNK) {
DES_ede3_cfb_encrypt(in, out, 8, (long)EVP_MAXCHUNK,
&data(ctx)->ks1, &data(ctx)->ks2,
- &data(ctx)->ks3, (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
+ &data(ctx)->ks3,
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
EVP_CIPHER_CTX_encrypting(ctx));
inl -= EVP_MAXCHUNK;
in += EVP_MAXCHUNK;
if (inl)
DES_ede3_cfb_encrypt(in, out, 8, (long)inl,
&data(ctx)->ks1, &data(ctx)->ks2,
- &data(ctx)->ks3, (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
+ &data(ctx)->ks3,
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
EVP_CIPHER_CTX_encrypting(ctx));
return 1;
}
int rv = -1;
if (inl < 24)
return -1;
- if (!out)
+ if (out == NULL)
return inl - 16;
memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), wrap_iv, 8);
/* Decrypt first block which will end up as icv */
const unsigned char *in, size_t inl)
{
unsigned char sha1tmp[SHA_DIGEST_LENGTH];
- if (!out)
+ if (out == NULL)
return inl + 16;
/* Copy input to output buffer + 8 so we have space for IV */
memmove(out + 8, in, inl);
*/
if (inl >= EVP_MAXCHUNK || inl % 8)
return -1;
+
+ if (is_partially_overlapping(out, in, inl)) {
+ EVPerr(EVP_F_DES_EDE3_WRAP_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
+ return 0;
+ }
+
if (EVP_CIPHER_CTX_encrypting(ctx))
return des_ede3_wrap(ctx, out, in, inl);
else
projects / openssl.git / blobdiff