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-/*
- * FIPS-46-3 compliant 3DES implementation
- *
- * Copyright (C) 2001-2003 Christophe Devine
- *
- * 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.
- *
- * 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.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-/*
- * Modified for BitlBee: Added a function compatible with the existing
- * function in ssl_openssl.c, fairly specialised for MSN auth (since that's
- * all this is used for at least for now).
- *
- * Added some consts to the tables at the top, and disabled some 64-bit
- * and 128-bit key code that I don't need.
- *
- * *Many* thanks to Christophe for this compact and easy to import code.
- */
-
-#include <string.h>
-#include <glib.h>
-#include "des.h"
-
-/* the eight 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,
-};
-
-/* platform-independant 32-bit integer manipulation macros */
-
-#define GET_UINT32(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] ); \
-}
-
-#define PUT_UINT32(n,b,i) \
-{ \
- (b)[(i) ] = (uint8_t) ( (n) >> 24 ); \
- (b)[(i) + 1] = (uint8_t) ( (n) >> 16 ); \
- (b)[(i) + 2] = (uint8_t) ( (n) >> 8 ); \
- (b)[(i) + 3] = (uint8_t) ( (n) ); \
-}
-
-/* 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 ]; \
-}
-
-/* DES key schedule */
-
-int des_main_ks( uint32_t SK[32], const uint8_t key[8] )
-{
- int i;
- uint32_t X, Y, T;
-
- GET_UINT32( X, key, 0 );
- GET_UINT32( 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);
- }
-
- return( 0 );
-}
-
-#if TEST
-int des_set_key( des_context *ctx, uint8_t key[8] )
-{
- int i;
-
- /* setup encryption subkeys */
-
- des_main_ks( ctx->esk, key );
-
- /* setup decryption subkeys */
-
- for( i = 0; i < 32; i += 2 )
- {
- ctx->dsk[i ] = ctx->esk[30 - i];
- ctx->dsk[i + 1] = ctx->esk[31 - i];
- }
-
- return( 0 );
-}
-
-/* DES 64-bit block encryption/decryption */
-
-void des_crypt( uint32_t SK[32], uint8_t input[8], uint8_t output[8] )
-{
- uint32_t X, Y, T;
-
- GET_UINT32( X, input, 0 );
- GET_UINT32( Y, input, 4 );
-
- DES_IP( X, Y );
-
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
-
- DES_FP( Y, X );
-
- PUT_UINT32( Y, output, 0 );
- PUT_UINT32( X, output, 4 );
-}
-
-void des_encrypt( des_context *ctx, uint8_t input[8], uint8_t output[8] )
-{
- des_crypt( ctx->esk, input, output );
-}
-
-void des_decrypt( des_context *ctx, uint8_t input[8], uint8_t output[8] )
-{
- des_crypt( ctx->dsk, input, output );
-}
-
-/* Triple-DES key schedule */
-
-int des3_set_2keys( des3_context *ctx, const uint8_t key1[8], const uint8_t key2[8] )
-{
- int i;
-
- des_main_ks( ctx->esk , key1 );
- des_main_ks( ctx->dsk + 32, key2 );
-
- for( i = 0; i < 32; i += 2 )
- {
- ctx->dsk[i ] = ctx->esk[30 - i];
- ctx->dsk[i + 1] = ctx->esk[31 - i];
-
- ctx->esk[i + 32] = ctx->dsk[62 - i];
- ctx->esk[i + 33] = ctx->dsk[63 - i];
-
- ctx->esk[i + 64] = ctx->esk[ i];
- ctx->esk[i + 65] = ctx->esk[ 1 + i];
-
- ctx->dsk[i + 64] = ctx->dsk[ i];
- ctx->dsk[i + 65] = ctx->dsk[ 1 + i];
- }
-
- return( 0 );
-}
-#endif
-
-int des3_set_3keys( des3_context *ctx, const uint8_t key1[8], const uint8_t key2[8],
- const uint8_t key3[8] )
-{
- int i;
-
- des_main_ks( ctx->esk , key1 );
- des_main_ks( ctx->dsk + 32, key2 );
- des_main_ks( ctx->esk + 64, key3 );
-
- for( i = 0; i < 32; i += 2 )
- {
- ctx->dsk[i ] = ctx->esk[94 - i];
- ctx->dsk[i + 1] = ctx->esk[95 - i];
-
- ctx->esk[i + 32] = ctx->dsk[62 - i];
- ctx->esk[i + 33] = ctx->dsk[63 - i];
-
- ctx->dsk[i + 64] = ctx->esk[30 - i];
- ctx->dsk[i + 65] = ctx->esk[31 - i];
- }
-
- return( 0 );
-}
-
-/* Triple-DES 64-bit block encryption/decryption */
-
-void des3_crypt( uint32_t SK[96], uint8_t input[8], uint8_t output[8] )
-{
- uint32_t X, Y, T;
-
- GET_UINT32( X, input, 0 );
- GET_UINT32( Y, input, 4 );
-
- DES_IP( X, Y );
-
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
-
- DES_ROUND( X, Y ); DES_ROUND( Y, X );
- DES_ROUND( X, Y ); DES_ROUND( Y, X );
- DES_ROUND( X, Y ); DES_ROUND( Y, X );
- DES_ROUND( X, Y ); DES_ROUND( Y, X );
- DES_ROUND( X, Y ); DES_ROUND( Y, X );
- DES_ROUND( X, Y ); DES_ROUND( Y, X );
- DES_ROUND( X, Y ); DES_ROUND( Y, X );
- DES_ROUND( X, Y ); DES_ROUND( Y, X );
-
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
- DES_ROUND( Y, X ); DES_ROUND( X, Y );
-
- DES_FP( Y, X );
-
- PUT_UINT32( Y, output, 0 );
- PUT_UINT32( X, output, 4 );
-}
-
-void des3_encrypt( des3_context *ctx, uint8_t input[8], uint8_t output[8] )
-{
- des3_crypt( ctx->esk, input, output );
-}
-
-void des3_decrypt( des3_context *ctx, uint8_t input[8], uint8_t output[8] )
-{
- des3_crypt( ctx->dsk, input, output );
-}
-
-size_t ssl_des3_encrypt( const unsigned char *key, size_t key_len, const unsigned char *input,
- size_t input_len, const unsigned char *iv, unsigned char **res )
-{
- des3_context ctx3;
- size_t off;
- uint8_t buf[8];
-
- /* Keep it simple, for as long as this is just used for MSN auth anyway. */
- if( key_len != 24 || ( input_len % 8 ) != 0 )
- return 0;
-
- *res = g_malloc( input_len );
- des3_set_3keys( &ctx3, key, key + 8, key + 16 );
-
- /* This loop does CBC 3DES. */
- memcpy( buf, iv, 8 );
- for( off = 0; off < input_len; off += 8 )
- {
- int i;
-
- for( i = 0; i < 8; i ++ )
- buf[i] ^= input[off+i];
- des3_encrypt( &ctx3, buf, buf );
- memcpy( *res + off, buf, 8 );
- }
-
- return input_len;
-}
-
-#ifdef TEST
-
-#include <string.h>
-#include <stdio.h>
-
-/*
- * Triple-DES Monte Carlo Test: ECB mode
- * source: NIST - tripledes-vectors.zip
- */
-
-static const unsigned char DES3_keys[3][8] =
-{
- { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
- { 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01 },
- { 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23 }
-};
-
-static const unsigned char DES3_init[8] =
-{
- 0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74
-};
-
-static const unsigned char DES3_enc_test[3][8] =
-{
- { 0x6A, 0x2A, 0x19, 0xF4, 0x1E, 0xCA, 0x85, 0x4B },
- { 0x03, 0xE6, 0x9F, 0x5B, 0xFA, 0x58, 0xEB, 0x42 },
- { 0xDD, 0x17, 0xE8, 0xB8, 0xB4, 0x37, 0xD2, 0x32 }
-};
-
-static const unsigned char DES3_dec_test[3][8] =
-{
- { 0xCD, 0xD6, 0x4F, 0x2F, 0x94, 0x27, 0xC1, 0x5D },
- { 0x69, 0x96, 0xC8, 0xFA, 0x47, 0xA2, 0xAB, 0xEB },
- { 0x83, 0x25, 0x39, 0x76, 0x44, 0x09, 0x1A, 0x0A }
-};
-
-int main( void )
-{
- int m, n, i;
- des_context ctx;
- des3_context ctx3;
- unsigned char buf[8];
-
- for( m = 0; m < 2; m++ )
- {
- printf( "\n Triple-DES Monte Carlo Test (ECB mode) - " );
-
- if( m == 0 ) printf( "encryption\n\n" );
- if( m == 1 ) printf( "decryption\n\n" );
-
- for( n = 0; n < 3; n++ )
- {
- printf( " Test %d, key size = %3d bits: ",
- n + 1, 64 + n * 64 );
-
- fflush( stdout );
-
- memcpy( buf, DES3_init, 8 );
-
- switch( n )
- {
- case 0:
- des_set_key( &ctx, DES3_keys[0] );
- break;
-
- case 1:
- des3_set_2keys( &ctx3, DES3_keys[0],
- DES3_keys[1] );
- break;
-
- case 2:
- des3_set_3keys( &ctx3, DES3_keys[0],
- DES3_keys[1],
- DES3_keys[2] );
- break;
- }
-
- for( i = 0; i < 10000; i++ )
- {
- if( n == 0 )
- {
- if( m == 0 ) des_encrypt( &ctx, buf, buf );
- if( m == 1 ) des_decrypt( &ctx, buf, buf );
- }
- else
- {
- if( m == 0 ) des3_encrypt( &ctx3, buf, buf );
- if( m == 1 ) des3_decrypt( &ctx3, buf, buf );
- }
- }
-
- if( ( m == 0 && memcmp( buf, DES3_enc_test[n], 8 ) ) ||
- ( m == 1 && memcmp( buf, DES3_dec_test[n], 8 ) ) )
- {
- printf( "failed!\n" );
- return( 1 );
- }
-
- printf( "passed.\n" );
- }
- }
-
- printf( "\n" );
-
- return( 0 );
-}
-
-#endif
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