Fawwaz Nadzmy
mbed library sources. Supersedes mbed-src.
Fork of
mbed-dev
by 
mbed official
Diff: targets/TARGET_NUVOTON/TARGET_NUC472/crypto/des/des_alt_sw.c
- Revision:
- 153:9398a535854b
- Parent:
- 152:9a67f0b066fc
--- a/targets/TARGET_NUVOTON/TARGET_NUC472/crypto/des/des_alt_sw.c Thu Dec 15 11:48:27 2016 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,797 +0,0 @@
-/*
- * FIPS-46-3 compliant Triple-DES implementation
- *
- * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- * SPDX-License-Identifier: Apache-2.0
- *
- * 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
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * 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.
- *
- * This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- * DES, on which TDES is based, was originally designed by Horst Feistel
- * at IBM in 1974, and was adopted as a standard by NIST (formerly NBS).
- *
- * http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_DES_ALT)
-
-#include "mbedtls/des.h"
-
-#include <string.h>
-
-/* Implementation that should never be optimized out by the compiler */
-static void mbedtls_zeroize( void *v, size_t n ) {
- volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0;
-}
-
-/*
- * 32-bit integer manipulation macros (big endian)
- */
-#ifndef GET_UINT32_BE
-#define GET_UINT32_BE(n,b,i) \
-{ \
- (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
- | ( (uint32_t) (b)[(i) + 1] << 16 ) \
- | ( (uint32_t) (b)[(i) + 2] << 8 ) \
- | ( (uint32_t) (b)[(i) + 3] ); \
-}
-#endif
-
-#ifndef PUT_UINT32_BE
-#define PUT_UINT32_BE(n,b,i) \
-{ \
- (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
- (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
- (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
- (b)[(i) + 3] = (unsigned char) ( (n) ); \
-}
-#endif
-
-/*
- * Expanded DES S-boxes
- */
-static const uint32_t SB1[64] =
-{
- 0x01010400, 0x00000000, 0x00010000, 0x01010404,
- 0x01010004, 0x00010404, 0x00000004, 0x00010000,
- 0x00000400, 0x01010400, 0x01010404, 0x00000400,
- 0x01000404, 0x01010004, 0x01000000, 0x00000004,
- 0x00000404, 0x01000400, 0x01000400, 0x00010400,
- 0x00010400, 0x01010000, 0x01010000, 0x01000404,
- 0x00010004, 0x01000004, 0x01000004, 0x00010004,
- 0x00000000, 0x00000404, 0x00010404, 0x01000000,
- 0x00010000, 0x01010404, 0x00000004, 0x01010000,
- 0x01010400, 0x01000000, 0x01000000, 0x00000400,
- 0x01010004, 0x00010000, 0x00010400, 0x01000004,
- 0x00000400, 0x00000004, 0x01000404, 0x00010404,
- 0x01010404, 0x00010004, 0x01010000, 0x01000404,
- 0x01000004, 0x00000404, 0x00010404, 0x01010400,
- 0x00000404, 0x01000400, 0x01000400, 0x00000000,
- 0x00010004, 0x00010400, 0x00000000, 0x01010004
-};
-
-static const uint32_t SB2[64] =
-{
- 0x80108020, 0x80008000, 0x00008000, 0x00108020,
- 0x00100000, 0x00000020, 0x80100020, 0x80008020,
- 0x80000020, 0x80108020, 0x80108000, 0x80000000,
- 0x80008000, 0x00100000, 0x00000020, 0x80100020,
- 0x00108000, 0x00100020, 0x80008020, 0x00000000,
- 0x80000000, 0x00008000, 0x00108020, 0x80100000,
- 0x00100020, 0x80000020, 0x00000000, 0x00108000,
- 0x00008020, 0x80108000, 0x80100000, 0x00008020,
- 0x00000000, 0x00108020, 0x80100020, 0x00100000,
- 0x80008020, 0x80100000, 0x80108000, 0x00008000,
- 0x80100000, 0x80008000, 0x00000020, 0x80108020,
- 0x00108020, 0x00000020, 0x00008000, 0x80000000,
- 0x00008020, 0x80108000, 0x00100000, 0x80000020,
- 0x00100020, 0x80008020, 0x80000020, 0x00100020,
- 0x00108000, 0x00000000, 0x80008000, 0x00008020,
- 0x80000000, 0x80100020, 0x80108020, 0x00108000
-};
-
-static const uint32_t SB3[64] =
-{
- 0x00000208, 0x08020200, 0x00000000, 0x08020008,
- 0x08000200, 0x00000000, 0x00020208, 0x08000200,
- 0x00020008, 0x08000008, 0x08000008, 0x00020000,
- 0x08020208, 0x00020008, 0x08020000, 0x00000208,
- 0x08000000, 0x00000008, 0x08020200, 0x00000200,
- 0x00020200, 0x08020000, 0x08020008, 0x00020208,
- 0x08000208, 0x00020200, 0x00020000, 0x08000208,
- 0x00000008, 0x08020208, 0x00000200, 0x08000000,
- 0x08020200, 0x08000000, 0x00020008, 0x00000208,
- 0x00020000, 0x08020200, 0x08000200, 0x00000000,
- 0x00000200, 0x00020008, 0x08020208, 0x08000200,
- 0x08000008, 0x00000200, 0x00000000, 0x08020008,
- 0x08000208, 0x00020000, 0x08000000, 0x08020208,
- 0x00000008, 0x00020208, 0x00020200, 0x08000008,
- 0x08020000, 0x08000208, 0x00000208, 0x08020000,
- 0x00020208, 0x00000008, 0x08020008, 0x00020200
-};
-
-static const uint32_t SB4[64] =
-{
- 0x00802001, 0x00002081, 0x00002081, 0x00000080,
- 0x00802080, 0x00800081, 0x00800001, 0x00002001,
- 0x00000000, 0x00802000, 0x00802000, 0x00802081,
- 0x00000081, 0x00000000, 0x00800080, 0x00800001,
- 0x00000001, 0x00002000, 0x00800000, 0x00802001,
- 0x00000080, 0x00800000, 0x00002001, 0x00002080,
- 0x00800081, 0x00000001, 0x00002080, 0x00800080,
- 0x00002000, 0x00802080, 0x00802081, 0x00000081,
- 0x00800080, 0x00800001, 0x00802000, 0x00802081,
- 0x00000081, 0x00000000, 0x00000000, 0x00802000,
- 0x00002080, 0x00800080, 0x00800081, 0x00000001,
- 0x00802001, 0x00002081, 0x00002081, 0x00000080,
- 0x00802081, 0x00000081, 0x00000001, 0x00002000,
- 0x00800001, 0x00002001, 0x00802080, 0x00800081,
- 0x00002001, 0x00002080, 0x00800000, 0x00802001,
- 0x00000080, 0x00800000, 0x00002000, 0x00802080
-};
-
-static const uint32_t SB5[64] =
-{
- 0x00000100, 0x02080100, 0x02080000, 0x42000100,
- 0x00080000, 0x00000100, 0x40000000, 0x02080000,
- 0x40080100, 0x00080000, 0x02000100, 0x40080100,
- 0x42000100, 0x42080000, 0x00080100, 0x40000000,
- 0x02000000, 0x40080000, 0x40080000, 0x00000000,
- 0x40000100, 0x42080100, 0x42080100, 0x02000100,
- 0x42080000, 0x40000100, 0x00000000, 0x42000000,
- 0x02080100, 0x02000000, 0x42000000, 0x00080100,
- 0x00080000, 0x42000100, 0x00000100, 0x02000000,
- 0x40000000, 0x02080000, 0x42000100, 0x40080100,
- 0x02000100, 0x40000000, 0x42080000, 0x02080100,
- 0x40080100, 0x00000100, 0x02000000, 0x42080000,
- 0x42080100, 0x00080100, 0x42000000, 0x42080100,
- 0x02080000, 0x00000000, 0x40080000, 0x42000000,
- 0x00080100, 0x02000100, 0x40000100, 0x00080000,
- 0x00000000, 0x40080000, 0x02080100, 0x40000100
-};
-
-static const uint32_t SB6[64] =
-{
- 0x20000010, 0x20400000, 0x00004000, 0x20404010,
- 0x20400000, 0x00000010, 0x20404010, 0x00400000,
- 0x20004000, 0x00404010, 0x00400000, 0x20000010,
- 0x00400010, 0x20004000, 0x20000000, 0x00004010,
- 0x00000000, 0x00400010, 0x20004010, 0x00004000,
- 0x00404000, 0x20004010, 0x00000010, 0x20400010,
- 0x20400010, 0x00000000, 0x00404010, 0x20404000,
- 0x00004010, 0x00404000, 0x20404000, 0x20000000,
- 0x20004000, 0x00000010, 0x20400010, 0x00404000,
- 0x20404010, 0x00400000, 0x00004010, 0x20000010,
- 0x00400000, 0x20004000, 0x20000000, 0x00004010,
- 0x20000010, 0x20404010, 0x00404000, 0x20400000,
- 0x00404010, 0x20404000, 0x00000000, 0x20400010,
- 0x00000010, 0x00004000, 0x20400000, 0x00404010,
- 0x00004000, 0x00400010, 0x20004010, 0x00000000,
- 0x20404000, 0x20000000, 0x00400010, 0x20004010
-};
-
-static const uint32_t SB7[64] =
-{
- 0x00200000, 0x04200002, 0x04000802, 0x00000000,
- 0x00000800, 0x04000802, 0x00200802, 0x04200800,
- 0x04200802, 0x00200000, 0x00000000, 0x04000002,
- 0x00000002, 0x04000000, 0x04200002, 0x00000802,
- 0x04000800, 0x00200802, 0x00200002, 0x04000800,
- 0x04000002, 0x04200000, 0x04200800, 0x00200002,
- 0x04200000, 0x00000800, 0x00000802, 0x04200802,
- 0x00200800, 0x00000002, 0x04000000, 0x00200800,
- 0x04000000, 0x00200800, 0x00200000, 0x04000802,
- 0x04000802, 0x04200002, 0x04200002, 0x00000002,
- 0x00200002, 0x04000000, 0x04000800, 0x00200000,
- 0x04200800, 0x00000802, 0x00200802, 0x04200800,
- 0x00000802, 0x04000002, 0x04200802, 0x04200000,
- 0x00200800, 0x00000000, 0x00000002, 0x04200802,
- 0x00000000, 0x00200802, 0x04200000, 0x00000800,
- 0x04000002, 0x04000800, 0x00000800, 0x00200002
-};
-
-static const uint32_t SB8[64] =
-{
- 0x10001040, 0x00001000, 0x00040000, 0x10041040,
- 0x10000000, 0x10001040, 0x00000040, 0x10000000,
- 0x00040040, 0x10040000, 0x10041040, 0x00041000,
- 0x10041000, 0x00041040, 0x00001000, 0x00000040,
- 0x10040000, 0x10000040, 0x10001000, 0x00001040,
- 0x00041000, 0x00040040, 0x10040040, 0x10041000,
- 0x00001040, 0x00000000, 0x00000000, 0x10040040,
- 0x10000040, 0x10001000, 0x00041040, 0x00040000,
- 0x00041040, 0x00040000, 0x10041000, 0x00001000,
- 0x00000040, 0x10040040, 0x00001000, 0x00041040,
- 0x10001000, 0x00000040, 0x10000040, 0x10040000,
- 0x10040040, 0x10000000, 0x00040000, 0x10001040,
- 0x00000000, 0x10041040, 0x00040040, 0x10000040,
- 0x10040000, 0x10001000, 0x10001040, 0x00000000,
- 0x10041040, 0x00041000, 0x00041000, 0x00001040,
- 0x00001040, 0x00040040, 0x10000000, 0x10041000
-};
-
-/*
- * PC1: left and right halves bit-swap
- */
-static const uint32_t LHs[16] =
-{
- 0x00000000, 0x00000001, 0x00000100, 0x00000101,
- 0x00010000, 0x00010001, 0x00010100, 0x00010101,
- 0x01000000, 0x01000001, 0x01000100, 0x01000101,
- 0x01010000, 0x01010001, 0x01010100, 0x01010101
-};
-
-static const uint32_t RHs[16] =
-{
- 0x00000000, 0x01000000, 0x00010000, 0x01010000,
- 0x00000100, 0x01000100, 0x00010100, 0x01010100,
- 0x00000001, 0x01000001, 0x00010001, 0x01010001,
- 0x00000101, 0x01000101, 0x00010101, 0x01010101,
-};
-
-/*
- * Initial Permutation macro
- */
-#define DES_IP(X,Y) \
-{ \
- T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
- T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
- T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
- T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
- Y = ((Y << 1) | (Y >> 31)) & 0xFFFFFFFF; \
- T = (X ^ Y) & 0xAAAAAAAA; Y ^= T; X ^= T; \
- X = ((X << 1) | (X >> 31)) & 0xFFFFFFFF; \
-}
-
-/*
- * Final Permutation macro
- */
-#define DES_FP(X,Y) \
-{ \
- X = ((X << 31) | (X >> 1)) & 0xFFFFFFFF; \
- T = (X ^ Y) & 0xAAAAAAAA; X ^= T; Y ^= T; \
- Y = ((Y << 31) | (Y >> 1)) & 0xFFFFFFFF; \
- T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
- T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
- T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
- T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
-}
-
-/*
- * DES round macro
- */
-#define DES_ROUND(X,Y) \
-{ \
- T = *SK++ ^ X; \
- Y ^= SB8[ (T ) & 0x3F ] ^ \
- SB6[ (T >> 8) & 0x3F ] ^ \
- SB4[ (T >> 16) & 0x3F ] ^ \
- SB2[ (T >> 24) & 0x3F ]; \
- \
- T = *SK++ ^ ((X << 28) | (X >> 4)); \
- Y ^= SB7[ (T ) & 0x3F ] ^ \
- SB5[ (T >> 8) & 0x3F ] ^ \
- SB3[ (T >> 16) & 0x3F ] ^ \
- SB1[ (T >> 24) & 0x3F ]; \
-}
-
-#define SWAP(a,b) { uint32_t t = a; a = b; b = t; t = 0; }
-
-void mbedtls_des_sw_init( mbedtls_des_sw_context *ctx )
-{
- memset( ctx, 0, sizeof( mbedtls_des_sw_context ) );
-}
-
-void mbedtls_des_sw_free( mbedtls_des_sw_context *ctx )
-{
- if( ctx == NULL )
- return;
-
- mbedtls_zeroize( ctx, sizeof( mbedtls_des_sw_context ) );
-}
-
-void mbedtls_des3_sw_init( mbedtls_des3_sw_context *ctx )
-{
- memset( ctx, 0, sizeof( mbedtls_des3_sw_context ) );
-}
-
-void mbedtls_des3_sw_free( mbedtls_des3_sw_context *ctx )
-{
- if( ctx == NULL )
- return;
-
- mbedtls_zeroize( ctx, sizeof( mbedtls_des3_sw_context ) );
-}
-
-static const unsigned char odd_parity_table[128] = { 1, 2, 4, 7, 8,
- 11, 13, 14, 16, 19, 21, 22, 25, 26, 28, 31, 32, 35, 37, 38, 41, 42, 44,
- 47, 49, 50, 52, 55, 56, 59, 61, 62, 64, 67, 69, 70, 73, 74, 76, 79, 81,
- 82, 84, 87, 88, 91, 93, 94, 97, 98, 100, 103, 104, 107, 109, 110, 112,
- 115, 117, 118, 121, 122, 124, 127, 128, 131, 133, 134, 137, 138, 140,
- 143, 145, 146, 148, 151, 152, 155, 157, 158, 161, 162, 164, 167, 168,
- 171, 173, 174, 176, 179, 181, 182, 185, 186, 188, 191, 193, 194, 196,
- 199, 200, 203, 205, 206, 208, 211, 213, 214, 217, 218, 220, 223, 224,
- 227, 229, 230, 233, 234, 236, 239, 241, 242, 244, 247, 248, 251, 253,
- 254 };
-
-void mbedtls_des_sw_key_set_parity( unsigned char key[MBEDTLS_DES_KEY_SIZE] )
-{
- int i;
-
- for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ )
- key[i] = odd_parity_table[key[i] / 2];
-}
-
-/*
- * Check the given key's parity, returns 1 on failure, 0 on SUCCESS
- */
-int mbedtls_des_sw_key_check_key_parity( const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
-{
- int i;
-
- for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ )
- if( key[i] != odd_parity_table[key[i] / 2] )
- return( 1 );
-
- return( 0 );
-}
-
-/*
- * Table of weak and semi-weak keys
- *
- * Source: http://en.wikipedia.org/wiki/Weak_key
- *
- * Weak:
- * Alternating ones + zeros (0x0101010101010101)
- * Alternating 'F' + 'E' (0xFEFEFEFEFEFEFEFE)
- * '0xE0E0E0E0F1F1F1F1'
- * '0x1F1F1F1F0E0E0E0E'
- *
- * Semi-weak:
- * 0x011F011F010E010E and 0x1F011F010E010E01
- * 0x01E001E001F101F1 and 0xE001E001F101F101
- * 0x01FE01FE01FE01FE and 0xFE01FE01FE01FE01
- * 0x1FE01FE00EF10EF1 and 0xE01FE01FF10EF10E
- * 0x1FFE1FFE0EFE0EFE and 0xFE1FFE1FFE0EFE0E
- * 0xE0FEE0FEF1FEF1FE and 0xFEE0FEE0FEF1FEF1
- *
- */
-
-#define WEAK_KEY_COUNT 16
-
-static const unsigned char weak_key_table[WEAK_KEY_COUNT][MBEDTLS_DES_KEY_SIZE] =
-{
- { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
- { 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE },
- { 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E },
- { 0xE0, 0xE0, 0xE0, 0xE0, 0xF1, 0xF1, 0xF1, 0xF1 },
-
- { 0x01, 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E },
- { 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E, 0x01 },
- { 0x01, 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1 },
- { 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1, 0x01 },
- { 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE },
- { 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01 },
- { 0x1F, 0xE0, 0x1F, 0xE0, 0x0E, 0xF1, 0x0E, 0xF1 },
- { 0xE0, 0x1F, 0xE0, 0x1F, 0xF1, 0x0E, 0xF1, 0x0E },
- { 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E, 0xFE },
- { 0xFE, 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E },
- { 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE },
- { 0xFE, 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1 }
-};
-
-int mbedtls_des_sw_key_check_weak( const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
-{
- int i;
-
- for( i = 0; i < WEAK_KEY_COUNT; i++ )
- if( memcmp( weak_key_table[i], key, MBEDTLS_DES_KEY_SIZE) == 0 )
- return( 1 );
-
- return( 0 );
-}
-
-void mbedtls_des_setkey( uint32_t SK[32], const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
-{
- int i;
- uint32_t X, Y, T;
-
- GET_UINT32_BE( X, key, 0 );
- GET_UINT32_BE( Y, key, 4 );
-
- /*
- * Permuted Choice 1
- */
- T = ((Y >> 4) ^ X) & 0x0F0F0F0F; X ^= T; Y ^= (T << 4);
- T = ((Y ) ^ X) & 0x10101010; X ^= T; Y ^= (T );
-
- X = (LHs[ (X ) & 0xF] << 3) | (LHs[ (X >> 8) & 0xF ] << 2)
- | (LHs[ (X >> 16) & 0xF] << 1) | (LHs[ (X >> 24) & 0xF ] )
- | (LHs[ (X >> 5) & 0xF] << 7) | (LHs[ (X >> 13) & 0xF ] << 6)
- | (LHs[ (X >> 21) & 0xF] << 5) | (LHs[ (X >> 29) & 0xF ] << 4);
-
- Y = (RHs[ (Y >> 1) & 0xF] << 3) | (RHs[ (Y >> 9) & 0xF ] << 2)
- | (RHs[ (Y >> 17) & 0xF] << 1) | (RHs[ (Y >> 25) & 0xF ] )
- | (RHs[ (Y >> 4) & 0xF] << 7) | (RHs[ (Y >> 12) & 0xF ] << 6)
- | (RHs[ (Y >> 20) & 0xF] << 5) | (RHs[ (Y >> 28) & 0xF ] << 4);
-
- X &= 0x0FFFFFFF;
- Y &= 0x0FFFFFFF;
-
- /*
- * calculate subkeys
- */
- for( i = 0; i < 16; i++ )
- {
- if( i < 2 || i == 8 || i == 15 )
- {
- X = ((X << 1) | (X >> 27)) & 0x0FFFFFFF;
- Y = ((Y << 1) | (Y >> 27)) & 0x0FFFFFFF;
- }
- else
- {
- X = ((X << 2) | (X >> 26)) & 0x0FFFFFFF;
- Y = ((Y << 2) | (Y >> 26)) & 0x0FFFFFFF;
- }
-
- *SK++ = ((X << 4) & 0x24000000) | ((X << 28) & 0x10000000)
- | ((X << 14) & 0x08000000) | ((X << 18) & 0x02080000)
- | ((X << 6) & 0x01000000) | ((X << 9) & 0x00200000)
- | ((X >> 1) & 0x00100000) | ((X << 10) & 0x00040000)
- | ((X << 2) & 0x00020000) | ((X >> 10) & 0x00010000)
- | ((Y >> 13) & 0x00002000) | ((Y >> 4) & 0x00001000)
- | ((Y << 6) & 0x00000800) | ((Y >> 1) & 0x00000400)
- | ((Y >> 14) & 0x00000200) | ((Y ) & 0x00000100)
- | ((Y >> 5) & 0x00000020) | ((Y >> 10) & 0x00000010)
- | ((Y >> 3) & 0x00000008) | ((Y >> 18) & 0x00000004)
- | ((Y >> 26) & 0x00000002) | ((Y >> 24) & 0x00000001);
-
- *SK++ = ((X << 15) & 0x20000000) | ((X << 17) & 0x10000000)
- | ((X << 10) & 0x08000000) | ((X << 22) & 0x04000000)
- | ((X >> 2) & 0x02000000) | ((X << 1) & 0x01000000)
- | ((X << 16) & 0x00200000) | ((X << 11) & 0x00100000)
- | ((X << 3) & 0x00080000) | ((X >> 6) & 0x00040000)
- | ((X << 15) & 0x00020000) | ((X >> 4) & 0x00010000)
- | ((Y >> 2) & 0x00002000) | ((Y << 8) & 0x00001000)
- | ((Y >> 14) & 0x00000808) | ((Y >> 9) & 0x00000400)
- | ((Y ) & 0x00000200) | ((Y << 7) & 0x00000100)
- | ((Y >> 7) & 0x00000020) | ((Y >> 3) & 0x00000011)
- | ((Y << 2) & 0x00000004) | ((Y >> 21) & 0x00000002);
- }
-}
-
-/*
- * DES key schedule (56-bit, encryption)
- */
-int mbedtls_des_sw_setkey_enc( mbedtls_des_sw_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
-{
- mbedtls_des_setkey( ctx->sk, key );
-
- return( 0 );
-}
-
-/*
- * DES key schedule (56-bit, decryption)
- */
-int mbedtls_des_sw_setkey_dec( mbedtls_des_sw_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
-{
- int i;
-
- mbedtls_des_setkey( ctx->sk, key );
-
- for( i = 0; i < 16; i += 2 )
- {
- SWAP( ctx->sk[i ], ctx->sk[30 - i] );
- SWAP( ctx->sk[i + 1], ctx->sk[31 - i] );
- }
-
- return( 0 );
-}
-
-static void des3_set2key( uint32_t esk[96],
- uint32_t dsk[96],
- const unsigned char key[MBEDTLS_DES_KEY_SIZE*2] )
-{
- int i;
-
- mbedtls_des_setkey( esk, key );
- mbedtls_des_setkey( dsk + 32, key + 8 );
-
- for( i = 0; i < 32; i += 2 )
- {
- dsk[i ] = esk[30 - i];
- dsk[i + 1] = esk[31 - i];
-
- esk[i + 32] = dsk[62 - i];
- esk[i + 33] = dsk[63 - i];
-
- esk[i + 64] = esk[i ];
- esk[i + 65] = esk[i + 1];
-
- dsk[i + 64] = dsk[i ];
- dsk[i + 65] = dsk[i + 1];
- }
-}
-
-/*
- * Triple-DES key schedule (112-bit, encryption)
- */
-int mbedtls_des3_sw_set2key_enc( mbedtls_des3_sw_context *ctx,
- const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] )
-{
- uint32_t sk[96];
-
- des3_set2key( ctx->sk, sk, key );
- mbedtls_zeroize( sk, sizeof( sk ) );
-
- return( 0 );
-}
-
-/*
- * Triple-DES key schedule (112-bit, decryption)
- */
-int mbedtls_des3_sw_set2key_dec( mbedtls_des3_sw_context *ctx,
- const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] )
-{
- uint32_t sk[96];
-
- des3_set2key( sk, ctx->sk, key );
- mbedtls_zeroize( sk, sizeof( sk ) );
-
- return( 0 );
-}
-
-static void des3_set3key( uint32_t esk[96],
- uint32_t dsk[96],
- const unsigned char key[24] )
-{
- int i;
-
- mbedtls_des_setkey( esk, key );
- mbedtls_des_setkey( dsk + 32, key + 8 );
- mbedtls_des_setkey( esk + 64, key + 16 );
-
- for( i = 0; i < 32; i += 2 )
- {
- dsk[i ] = esk[94 - i];
- dsk[i + 1] = esk[95 - i];
-
- esk[i + 32] = dsk[62 - i];
- esk[i + 33] = dsk[63 - i];
-
- dsk[i + 64] = esk[30 - i];
- dsk[i + 65] = esk[31 - i];
- }
-}
-
-/*
- * Triple-DES key schedule (168-bit, encryption)
- */
-int mbedtls_des3_sw_set3key_enc( mbedtls_des3_sw_context *ctx,
- const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] )
-{
- uint32_t sk[96];
-
- des3_set3key( ctx->sk, sk, key );
- mbedtls_zeroize( sk, sizeof( sk ) );
-
- return( 0 );
-}
-
-/*
- * Triple-DES key schedule (168-bit, decryption)
- */
-int mbedtls_des3_sw_set3key_dec( mbedtls_des3_sw_context *ctx,
- const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] )
-{
- uint32_t sk[96];
-
- des3_set3key( sk, ctx->sk, key );
- mbedtls_zeroize( sk, sizeof( sk ) );
-
- return( 0 );
-}
-
-/*
- * DES-ECB block encryption/decryption
- */
-int mbedtls_des_sw_crypt_ecb( mbedtls_des_sw_context *ctx,
- const unsigned char input[8],
- unsigned char output[8] )
-{
- int i;
- uint32_t X, Y, T, *SK;
-
- SK = ctx->sk;
-
- GET_UINT32_BE( X, input, 0 );
- GET_UINT32_BE( Y, input, 4 );
-
- DES_IP( X, Y );
-
- for( i = 0; i < 8; i++ )
- {
- DES_ROUND( Y, X );
- DES_ROUND( X, Y );
- }
-
- DES_FP( Y, X );
-
- PUT_UINT32_BE( Y, output, 0 );
- PUT_UINT32_BE( X, output, 4 );
-
- return( 0 );
-}
-
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-/*
- * DES-CBC buffer encryption/decryption
- */
-int mbedtls_des_sw_crypt_cbc( mbedtls_des_sw_context *ctx,
- int mode,
- size_t length,
- unsigned char iv[8],
- const unsigned char *input,
- unsigned char *output )
-{
- int i;
- unsigned char temp[8];
-
- if( length % 8 )
- return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH );
-
- if( mode == MBEDTLS_DES_ENCRYPT )
- {
- while( length > 0 )
- {
- for( i = 0; i < 8; i++ )
- output[i] = (unsigned char)( input[i] ^ iv[i] );
-
- mbedtls_des_sw_crypt_ecb( ctx, output, output );
- memcpy( iv, output, 8 );
-
- input += 8;
- output += 8;
- length -= 8;
- }
- }
- else /* MBEDTLS_DES_DECRYPT */
- {
- while( length > 0 )
- {
- memcpy( temp, input, 8 );
- mbedtls_des_sw_crypt_ecb( ctx, input, output );
-
- for( i = 0; i < 8; i++ )
- output[i] = (unsigned char)( output[i] ^ iv[i] );
-
- memcpy( iv, temp, 8 );
-
- input += 8;
- output += 8;
- length -= 8;
- }
- }
-
- return( 0 );
-}
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-
-/*
- * 3DES-ECB block encryption/decryption
- */
-int mbedtls_des3_sw_crypt_ecb( mbedtls_des3_sw_context *ctx,
- const unsigned char input[8],
- unsigned char output[8] )
-{
- int i;
- uint32_t X, Y, T, *SK;
-
- SK = ctx->sk;
-
- GET_UINT32_BE( X, input, 0 );
- GET_UINT32_BE( Y, input, 4 );
-
- DES_IP( X, Y );
-
- for( i = 0; i < 8; i++ )
- {
- DES_ROUND( Y, X );
- DES_ROUND( X, Y );
- }
-
- for( i = 0; i < 8; i++ )
- {
- DES_ROUND( X, Y );
- DES_ROUND( Y, X );
- }
-
- for( i = 0; i < 8; i++ )
- {
- DES_ROUND( Y, X );
- DES_ROUND( X, Y );
- }
-
- DES_FP( Y, X );
-
- PUT_UINT32_BE( Y, output, 0 );
- PUT_UINT32_BE( X, output, 4 );
-
- return( 0 );
-}
-
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-/*
- * 3DES-CBC buffer encryption/decryption
- */
-int mbedtls_des3_sw_crypt_cbc( mbedtls_des3_sw_context *ctx,
- int mode,
- size_t length,
- unsigned char iv[8],
- const unsigned char *input,
- unsigned char *output )
-{
- int i;
- unsigned char temp[8];
-
- if( length % 8 )
- return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH );
-
- if( mode == MBEDTLS_DES_ENCRYPT )
- {
- while( length > 0 )
- {
- for( i = 0; i < 8; i++ )
- output[i] = (unsigned char)( input[i] ^ iv[i] );
-
- mbedtls_des3_sw_crypt_ecb( ctx, output, output );
- memcpy( iv, output, 8 );
-
- input += 8;
- output += 8;
- length -= 8;
- }
- }
- else /* MBEDTLS_DES_DECRYPT */
- {
- while( length > 0 )
- {
- memcpy( temp, input, 8 );
- mbedtls_des3_sw_crypt_ecb( ctx, input, output );
-
- for( i = 0; i < 8; i++ )
- output[i] = (unsigned char)( output[i] ^ iv[i] );
-
- memcpy( iv, temp, 8 );
-
- input += 8;
- output += 8;
- length -= 8;
- }
- }
-
- return( 0 );
-}
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-
-#endif /* MBEDTLS_DES_ALT */
-#endif /* MBEDTLS_DES_C */