early-access version 1503
This commit is contained in:
87
externals/mbedtls/library/blowfish.c
vendored
87
externals/mbedtls/library/blowfish.c
vendored
@@ -1,8 +1,31 @@
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/*
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* Blowfish implementation
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*
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: GPL-2.0
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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*
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* This file is provided under the Apache License 2.0, or the
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* GNU General Public License v2.0 or later.
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*
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* **********
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* Apache License 2.0:
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* **********
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*
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* **********
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* GNU General Public License v2.0 or later:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@@ -18,7 +41,7 @@
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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* **********
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*/
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/*
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* The Blowfish block cipher was designed by Bruce Schneier in 1993.
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@@ -42,6 +65,12 @@
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#if !defined(MBEDTLS_BLOWFISH_ALT)
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/* Parameter validation macros */
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#define BLOWFISH_VALIDATE_RET( cond ) \
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MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA )
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#define BLOWFISH_VALIDATE( cond ) \
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MBEDTLS_INTERNAL_VALIDATE( cond )
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/*
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* 32-bit integer manipulation macros (big endian)
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*/
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@@ -155,6 +184,7 @@ static void blowfish_dec( mbedtls_blowfish_context *ctx, uint32_t *xl, uint32_t
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void mbedtls_blowfish_init( mbedtls_blowfish_context *ctx )
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{
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BLOWFISH_VALIDATE( ctx != NULL );
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memset( ctx, 0, sizeof( mbedtls_blowfish_context ) );
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}
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@@ -169,16 +199,20 @@ void mbedtls_blowfish_free( mbedtls_blowfish_context *ctx )
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/*
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* Blowfish key schedule
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*/
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int mbedtls_blowfish_setkey( mbedtls_blowfish_context *ctx, const unsigned char *key,
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unsigned int keybits )
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int mbedtls_blowfish_setkey( mbedtls_blowfish_context *ctx,
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const unsigned char *key,
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unsigned int keybits )
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{
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unsigned int i, j, k;
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uint32_t data, datal, datar;
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BLOWFISH_VALIDATE_RET( ctx != NULL );
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BLOWFISH_VALIDATE_RET( key != NULL );
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if( keybits < MBEDTLS_BLOWFISH_MIN_KEY_BITS || keybits > MBEDTLS_BLOWFISH_MAX_KEY_BITS ||
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( keybits % 8 ) )
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if( keybits < MBEDTLS_BLOWFISH_MIN_KEY_BITS ||
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keybits > MBEDTLS_BLOWFISH_MAX_KEY_BITS ||
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keybits % 8 != 0 )
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{
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return( MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH );
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return( MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA );
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}
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keybits >>= 3;
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@@ -233,6 +267,11 @@ int mbedtls_blowfish_crypt_ecb( mbedtls_blowfish_context *ctx,
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unsigned char output[MBEDTLS_BLOWFISH_BLOCKSIZE] )
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{
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uint32_t X0, X1;
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BLOWFISH_VALIDATE_RET( ctx != NULL );
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BLOWFISH_VALIDATE_RET( mode == MBEDTLS_BLOWFISH_ENCRYPT ||
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mode == MBEDTLS_BLOWFISH_DECRYPT );
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BLOWFISH_VALIDATE_RET( input != NULL );
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BLOWFISH_VALIDATE_RET( output != NULL );
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GET_UINT32_BE( X0, input, 0 );
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GET_UINT32_BE( X1, input, 4 );
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@@ -265,6 +304,12 @@ int mbedtls_blowfish_crypt_cbc( mbedtls_blowfish_context *ctx,
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{
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int i;
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unsigned char temp[MBEDTLS_BLOWFISH_BLOCKSIZE];
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BLOWFISH_VALIDATE_RET( ctx != NULL );
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BLOWFISH_VALIDATE_RET( mode == MBEDTLS_BLOWFISH_ENCRYPT ||
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mode == MBEDTLS_BLOWFISH_DECRYPT );
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BLOWFISH_VALIDATE_RET( iv != NULL );
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BLOWFISH_VALIDATE_RET( length == 0 || input != NULL );
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BLOWFISH_VALIDATE_RET( length == 0 || output != NULL );
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if( length % MBEDTLS_BLOWFISH_BLOCKSIZE )
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return( MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH );
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@@ -319,7 +364,19 @@ int mbedtls_blowfish_crypt_cfb64( mbedtls_blowfish_context *ctx,
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unsigned char *output )
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{
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int c;
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size_t n = *iv_off;
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size_t n;
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BLOWFISH_VALIDATE_RET( ctx != NULL );
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BLOWFISH_VALIDATE_RET( mode == MBEDTLS_BLOWFISH_ENCRYPT ||
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mode == MBEDTLS_BLOWFISH_DECRYPT );
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BLOWFISH_VALIDATE_RET( iv != NULL );
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BLOWFISH_VALIDATE_RET( iv_off != NULL );
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BLOWFISH_VALIDATE_RET( length == 0 || input != NULL );
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BLOWFISH_VALIDATE_RET( length == 0 || output != NULL );
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n = *iv_off;
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if( n >= 8 )
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return( MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA );
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if( mode == MBEDTLS_BLOWFISH_DECRYPT )
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{
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@@ -367,7 +424,17 @@ int mbedtls_blowfish_crypt_ctr( mbedtls_blowfish_context *ctx,
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unsigned char *output )
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{
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int c, i;
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size_t n = *nc_off;
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size_t n;
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BLOWFISH_VALIDATE_RET( ctx != NULL );
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BLOWFISH_VALIDATE_RET( nonce_counter != NULL );
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BLOWFISH_VALIDATE_RET( stream_block != NULL );
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BLOWFISH_VALIDATE_RET( nc_off != NULL );
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BLOWFISH_VALIDATE_RET( length == 0 || input != NULL );
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BLOWFISH_VALIDATE_RET( length == 0 || output != NULL );
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n = *nc_off;
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if( n >= 8 )
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return( MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA );
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while( length-- )
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{
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