/*
* Blowfish implementation
*
- * Copyright (C) 2012-2014, ARM Limited, All Rights Reserved
+ * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
*
- * This file is part of mbed TLS (https://polarssl.org)
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * http://www.apache.org/licenses/LICENSE-2.0
*
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The Blowfish block cipher was designed by Bruce Schneier in 1993.
*
*/
-#if !defined(POLARSSL_CONFIG_FILE)
-#include "polarssl/config.h"
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "mbedtls/config.h"
#else
-#include POLARSSL_CONFIG_FILE
+#include MBEDTLS_CONFIG_FILE
#endif
-#if defined(POLARSSL_BLOWFISH_C)
+#if defined(MBEDTLS_BLOWFISH_C)
-#include "polarssl/blowfish.h"
+#include "mbedtls/blowfish.h"
-#if !defined(POLARSSL_BLOWFISH_ALT)
+#include <string.h>
+
+#if !defined(MBEDTLS_BLOWFISH_ALT)
/* Implementation that should never be optimized out by the compiler */
-static void polarssl_zeroize( void *v, size_t n ) {
+static void mbedtls_zeroize( void *v, size_t n ) {
volatile unsigned char *p = v; while( n-- ) *p++ = 0;
}
}
#endif
-static const uint32_t P[BLOWFISH_ROUNDS + 2] = {
+static const uint32_t P[MBEDTLS_BLOWFISH_ROUNDS + 2] = {
0x243F6A88L, 0x85A308D3L, 0x13198A2EL, 0x03707344L,
0xA4093822L, 0x299F31D0L, 0x082EFA98L, 0xEC4E6C89L,
0x452821E6L, 0x38D01377L, 0xBE5466CFL, 0x34E90C6CL,
/* declarations of data at the end of this file */
static const uint32_t S[4][256];
-static uint32_t F( blowfish_context *ctx, uint32_t x )
+static uint32_t F( mbedtls_blowfish_context *ctx, uint32_t x )
{
unsigned short a, b, c, d;
uint32_t y;
return( y );
}
-static void blowfish_enc( blowfish_context *ctx, uint32_t *xl, uint32_t *xr )
+static void blowfish_enc( mbedtls_blowfish_context *ctx, uint32_t *xl, uint32_t *xr )
{
uint32_t Xl, Xr, temp;
short i;
Xl = *xl;
Xr = *xr;
- for( i = 0; i < BLOWFISH_ROUNDS; ++i )
+ for( i = 0; i < MBEDTLS_BLOWFISH_ROUNDS; ++i )
{
Xl = Xl ^ ctx->P[i];
Xr = F( ctx, Xl ) ^ Xr;
Xl = Xr;
Xr = temp;
- Xr = Xr ^ ctx->P[BLOWFISH_ROUNDS];
- Xl = Xl ^ ctx->P[BLOWFISH_ROUNDS + 1];
+ Xr = Xr ^ ctx->P[MBEDTLS_BLOWFISH_ROUNDS];
+ Xl = Xl ^ ctx->P[MBEDTLS_BLOWFISH_ROUNDS + 1];
*xl = Xl;
*xr = Xr;
}
-static void blowfish_dec( blowfish_context *ctx, uint32_t *xl, uint32_t *xr )
+static void blowfish_dec( mbedtls_blowfish_context *ctx, uint32_t *xl, uint32_t *xr )
{
uint32_t Xl, Xr, temp;
short i;
Xl = *xl;
Xr = *xr;
- for( i = BLOWFISH_ROUNDS + 1; i > 1; --i )
+ for( i = MBEDTLS_BLOWFISH_ROUNDS + 1; i > 1; --i )
{
Xl = Xl ^ ctx->P[i];
Xr = F( ctx, Xl ) ^ Xr;
*xr = Xr;
}
-void blowfish_init( blowfish_context *ctx )
+void mbedtls_blowfish_init( mbedtls_blowfish_context *ctx )
{
- memset( ctx, 0, sizeof( blowfish_context ) );
+ memset( ctx, 0, sizeof( mbedtls_blowfish_context ) );
}
-void blowfish_free( blowfish_context *ctx )
+void mbedtls_blowfish_free( mbedtls_blowfish_context *ctx )
{
if( ctx == NULL )
return;
- polarssl_zeroize( ctx, sizeof( blowfish_context ) );
+ mbedtls_zeroize( ctx, sizeof( mbedtls_blowfish_context ) );
}
/*
* Blowfish key schedule
*/
-int blowfish_setkey( blowfish_context *ctx, const unsigned char *key,
- unsigned int keysize )
+int mbedtls_blowfish_setkey( mbedtls_blowfish_context *ctx, const unsigned char *key,
+ unsigned int keybits )
{
unsigned int i, j, k;
uint32_t data, datal, datar;
- if( keysize < BLOWFISH_MIN_KEY || keysize > BLOWFISH_MAX_KEY ||
- ( keysize % 8 ) )
+ if( keybits < MBEDTLS_BLOWFISH_MIN_KEY_BITS || keybits > MBEDTLS_BLOWFISH_MAX_KEY_BITS ||
+ ( keybits % 8 ) )
{
- return( POLARSSL_ERR_BLOWFISH_INVALID_KEY_LENGTH );
+ return( MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH );
}
- keysize >>= 3;
+ keybits >>= 3;
for( i = 0; i < 4; i++ )
{
}
j = 0;
- for( i = 0; i < BLOWFISH_ROUNDS + 2; ++i )
+ for( i = 0; i < MBEDTLS_BLOWFISH_ROUNDS + 2; ++i )
{
data = 0x00000000;
for( k = 0; k < 4; ++k )
{
data = ( data << 8 ) | key[j++];
- if( j >= keysize )
+ if( j >= keybits )
j = 0;
}
ctx->P[i] = P[i] ^ data;
datal = 0x00000000;
datar = 0x00000000;
- for( i = 0; i < BLOWFISH_ROUNDS + 2; i += 2 )
+ for( i = 0; i < MBEDTLS_BLOWFISH_ROUNDS + 2; i += 2 )
{
blowfish_enc( ctx, &datal, &datar );
ctx->P[i] = datal;
/*
* Blowfish-ECB block encryption/decryption
*/
-int blowfish_crypt_ecb( blowfish_context *ctx,
+int mbedtls_blowfish_crypt_ecb( mbedtls_blowfish_context *ctx,
int mode,
- const unsigned char input[BLOWFISH_BLOCKSIZE],
- unsigned char output[BLOWFISH_BLOCKSIZE] )
+ const unsigned char input[MBEDTLS_BLOWFISH_BLOCKSIZE],
+ unsigned char output[MBEDTLS_BLOWFISH_BLOCKSIZE] )
{
uint32_t X0, X1;
GET_UINT32_BE( X0, input, 0 );
GET_UINT32_BE( X1, input, 4 );
- if( mode == BLOWFISH_DECRYPT )
+ if( mode == MBEDTLS_BLOWFISH_DECRYPT )
{
blowfish_dec( ctx, &X0, &X1 );
}
- else /* BLOWFISH_ENCRYPT */
+ else /* MBEDTLS_BLOWFISH_ENCRYPT */
{
blowfish_enc( ctx, &X0, &X1 );
}
return( 0 );
}
-#if defined(POLARSSL_CIPHER_MODE_CBC)
+#if defined(MBEDTLS_CIPHER_MODE_CBC)
/*
* Blowfish-CBC buffer encryption/decryption
*/
-int blowfish_crypt_cbc( blowfish_context *ctx,
+int mbedtls_blowfish_crypt_cbc( mbedtls_blowfish_context *ctx,
int mode,
size_t length,
- unsigned char iv[BLOWFISH_BLOCKSIZE],
+ unsigned char iv[MBEDTLS_BLOWFISH_BLOCKSIZE],
const unsigned char *input,
unsigned char *output )
{
int i;
- unsigned char temp[BLOWFISH_BLOCKSIZE];
+ unsigned char temp[MBEDTLS_BLOWFISH_BLOCKSIZE];
- if( length % BLOWFISH_BLOCKSIZE )
- return( POLARSSL_ERR_BLOWFISH_INVALID_INPUT_LENGTH );
+ if( length % MBEDTLS_BLOWFISH_BLOCKSIZE )
+ return( MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH );
- if( mode == BLOWFISH_DECRYPT )
+ if( mode == MBEDTLS_BLOWFISH_DECRYPT )
{
while( length > 0 )
{
- memcpy( temp, input, BLOWFISH_BLOCKSIZE );
- blowfish_crypt_ecb( ctx, mode, input, output );
+ memcpy( temp, input, MBEDTLS_BLOWFISH_BLOCKSIZE );
+ mbedtls_blowfish_crypt_ecb( ctx, mode, input, output );
- for( i = 0; i < BLOWFISH_BLOCKSIZE;i++ )
+ for( i = 0; i < MBEDTLS_BLOWFISH_BLOCKSIZE;i++ )
output[i] = (unsigned char)( output[i] ^ iv[i] );
- memcpy( iv, temp, BLOWFISH_BLOCKSIZE );
+ memcpy( iv, temp, MBEDTLS_BLOWFISH_BLOCKSIZE );
- input += BLOWFISH_BLOCKSIZE;
- output += BLOWFISH_BLOCKSIZE;
- length -= BLOWFISH_BLOCKSIZE;
+ input += MBEDTLS_BLOWFISH_BLOCKSIZE;
+ output += MBEDTLS_BLOWFISH_BLOCKSIZE;
+ length -= MBEDTLS_BLOWFISH_BLOCKSIZE;
}
}
else
{
while( length > 0 )
{
- for( i = 0; i < BLOWFISH_BLOCKSIZE; i++ )
+ for( i = 0; i < MBEDTLS_BLOWFISH_BLOCKSIZE; i++ )
output[i] = (unsigned char)( input[i] ^ iv[i] );
- blowfish_crypt_ecb( ctx, mode, output, output );
- memcpy( iv, output, BLOWFISH_BLOCKSIZE );
+ mbedtls_blowfish_crypt_ecb( ctx, mode, output, output );
+ memcpy( iv, output, MBEDTLS_BLOWFISH_BLOCKSIZE );
- input += BLOWFISH_BLOCKSIZE;
- output += BLOWFISH_BLOCKSIZE;
- length -= BLOWFISH_BLOCKSIZE;
+ input += MBEDTLS_BLOWFISH_BLOCKSIZE;
+ output += MBEDTLS_BLOWFISH_BLOCKSIZE;
+ length -= MBEDTLS_BLOWFISH_BLOCKSIZE;
}
}
return( 0 );
}
-#endif /* POLARSSL_CIPHER_MODE_CBC */
+#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(POLARSSL_CIPHER_MODE_CFB)
+#if defined(MBEDTLS_CIPHER_MODE_CFB)
/*
* Blowfish CFB buffer encryption/decryption
*/
-int blowfish_crypt_cfb64( blowfish_context *ctx,
+int mbedtls_blowfish_crypt_cfb64( mbedtls_blowfish_context *ctx,
int mode,
size_t length,
size_t *iv_off,
- unsigned char iv[BLOWFISH_BLOCKSIZE],
+ unsigned char iv[MBEDTLS_BLOWFISH_BLOCKSIZE],
const unsigned char *input,
unsigned char *output )
{
int c;
size_t n = *iv_off;
- if( mode == BLOWFISH_DECRYPT )
+ if( mode == MBEDTLS_BLOWFISH_DECRYPT )
{
while( length-- )
{
if( n == 0 )
- blowfish_crypt_ecb( ctx, BLOWFISH_ENCRYPT, iv, iv );
+ mbedtls_blowfish_crypt_ecb( ctx, MBEDTLS_BLOWFISH_ENCRYPT, iv, iv );
c = *input++;
*output++ = (unsigned char)( c ^ iv[n] );
iv[n] = (unsigned char) c;
- n = ( n + 1 ) % BLOWFISH_BLOCKSIZE;
+ n = ( n + 1 ) % MBEDTLS_BLOWFISH_BLOCKSIZE;
}
}
else
while( length-- )
{
if( n == 0 )
- blowfish_crypt_ecb( ctx, BLOWFISH_ENCRYPT, iv, iv );
+ mbedtls_blowfish_crypt_ecb( ctx, MBEDTLS_BLOWFISH_ENCRYPT, iv, iv );
iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ );
- n = ( n + 1 ) % BLOWFISH_BLOCKSIZE;
+ n = ( n + 1 ) % MBEDTLS_BLOWFISH_BLOCKSIZE;
}
}
return( 0 );
}
-#endif /*POLARSSL_CIPHER_MODE_CFB */
+#endif /*MBEDTLS_CIPHER_MODE_CFB */
-#if defined(POLARSSL_CIPHER_MODE_CTR)
+#if defined(MBEDTLS_CIPHER_MODE_CTR)
/*
* Blowfish CTR buffer encryption/decryption
*/
-int blowfish_crypt_ctr( blowfish_context *ctx,
+int mbedtls_blowfish_crypt_ctr( mbedtls_blowfish_context *ctx,
size_t length,
size_t *nc_off,
- unsigned char nonce_counter[BLOWFISH_BLOCKSIZE],
- unsigned char stream_block[BLOWFISH_BLOCKSIZE],
+ unsigned char nonce_counter[MBEDTLS_BLOWFISH_BLOCKSIZE],
+ unsigned char stream_block[MBEDTLS_BLOWFISH_BLOCKSIZE],
const unsigned char *input,
unsigned char *output )
{
while( length-- )
{
if( n == 0 ) {
- blowfish_crypt_ecb( ctx, BLOWFISH_ENCRYPT, nonce_counter,
+ mbedtls_blowfish_crypt_ecb( ctx, MBEDTLS_BLOWFISH_ENCRYPT, nonce_counter,
stream_block );
- for( i = BLOWFISH_BLOCKSIZE; i > 0; i-- )
+ for( i = MBEDTLS_BLOWFISH_BLOCKSIZE; i > 0; i-- )
if( ++nonce_counter[i - 1] != 0 )
break;
}
c = *input++;
*output++ = (unsigned char)( c ^ stream_block[n] );
- n = ( n + 1 ) % BLOWFISH_BLOCKSIZE;
+ n = ( n + 1 ) % MBEDTLS_BLOWFISH_BLOCKSIZE;
}
*nc_off = n;
return( 0 );
}
-#endif /* POLARSSL_CIPHER_MODE_CTR */
+#endif /* MBEDTLS_CIPHER_MODE_CTR */
static const uint32_t S[4][256] = {
{ 0xD1310BA6L, 0x98DFB5ACL, 0x2FFD72DBL, 0xD01ADFB7L,
0xB74E6132L, 0xCE77E25BL, 0x578FDFE3L, 0x3AC372E6L }
};
-#endif /* !POLARSSL_BLOWFISH_ALT */
-#endif /* POLARSSL_BLOWFISH_C */
+#endif /* !MBEDTLS_BLOWFISH_ALT */
+#endif /* MBEDTLS_BLOWFISH_C */
projects / reactos.git / blobdiff