GnuPG PGP加密程序源代码

/* Rijndael (AES) for GnuPG * Copyright (C) 2000, 2001 Free Software Foundation, Inc. * * This file is part of GnuPG. * * GnuPG 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. * * GnuPG 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 ******************************************************************* * The code here is based on the optimized implementation taken from * http://www.esat.kuleuven.ac.be/~rijmen/rijndael/ on Oct 2, 2000, * which carries this notice: *------------------------------------------ * rijndael-alg-fst.c v2.3 April '2000 * * Optimised ANSI C code * * authors: v1.0: Antoon Bosselaers * v2.0: Vincent Rijmen * v2.3: Paulo Barreto * * This code is placed in the public domain. *------------------------------------------ */  #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> /* for memcmp() */ #include "types.h" /* for byte and u32 typedefs */ #include "util.h" #include "errors.h" #include "algorithms.h" #define MAXKC (256/32) #define MAXROUNDS 14 static const char *selftest(void); typedef struct { int ROUNDS; /* key-length-dependent number of rounds */ int decryption_prepared; byte keySched[MAXROUNDS+1][4][4]; /* key schedule */ byte keySched2[MAXROUNDS+1][4][4]; /* key schedule */ } RIJNDAEL_context;  static const byte S[256] = { 99, 124, 119, 123, 242, 107, 111, 197, 48, 1, 103, 43, 254, 215, 171, 118, 202, 130, 201, 125, 250, 89, 71, 240, 173, 212, 162, 175, 156, 164, 114, 192, 183, 253, 147, 38, 54, 63, 247, 204, 52, 165, 229, 241, 113, 216, 49, 21, 4, 199, 35, 195, 24, 150, 5, 154, 7, 18, 128, 226, 235, 39, 178, 117, 9, 131, 44, 26, 27, 110, 90, 160, 82, 59, 214, 179, 41, 227, 47, 132, 83, 209, 0, 237, 32, 252, 177, 91, 106, 203, 190, 57, 74, 76, 88, 207, 208, 239, 170, 251, 67, 77, 51, 133, 69, 249, 2, 127, 80, 60, 159, 168, 81, 163, 64, 143, 146, 157, 56, 245, 188, 182, 218, 33, 16, 255, 243, 210, 205, 12, 19, 236, 95, 151, 68, 23, 196, 167, 126, 61, 100, 93, 25, 115, 96, 129, 79, 220, 34, 42, 144, 136, 70, 238, 184, 20, 222, 94, 11, 219, 224, 50, 58, 10, 73, 6, 36, 92, 194, 211, 172, 98, 145, 149, 228, 121, 231, 200, 55, 109, 141, 213, 78, 169, 108, 86, 244, 234, 101, 122, 174, 8, 186, 120, 37, 46, 28, 166, 180, 198, 232, 221, 116, 31, 75, 189, 139, 138, 112, 62, 181, 102, 72, 3, 246, 14, 97, 53, 87, 185, 134, 193, 29, 158, 225, 248, 152, 17, 105, 217, 142, 148, 155, 30, 135, 233, 206, 85, 40, 223, 140, 161, 137, 13, 191, 230, 66, 104, 65, 153, 45, 15, 176, 84, 187, 22 }; static const byte T1[256][4] = { { 0xc6,0x63,0x63,0xa5 }, { 0xf8,0x7c,0x7c,0x84 }, { 0xee,0x77,0x77,0x99 }, { 0xf6,0x7b,0x7b,0x8d }, { 0xff,0xf2,0xf2,0x0d }, { 0xd6,0x6b,0x6b,0xbd }, { 0xde,0x6f,0x6f,0xb1 }, { 0x91,0xc5,0xc5,0x54 }, { 0x60,0x30,0x30,0x50 }, { 0x02,0x01,0x01,0x03 }, { 0xce,0x67,0x67,0xa9 }, { 0x56,0x2b,0x2b,0x7d }, { 0xe7,0xfe,0xfe,0x19 }, { 0xb5,0xd7,0xd7,0x62 }, { 0x4d,0xab,0xab,0xe6 }, { 0xec,0x76,0x76,0x9a }, { 0x8f,0xca,0xca,0x45 }, { 0x1f,0x82,0x82,0x9d }, { 0x89,0xc9,0xc9,0x40 }, { 0xfa,0x7d,0x7d,0x87 }, { 0xef,0xfa,0xfa,0x15 }, { 0xb2,0x59,0x59,0xeb }, { 0x8e,0x47,0x47,0xc9 }, { 0xfb,0xf0,0xf0,0x0b }, { 0x41,0xad,0xad,0xec }, { 0xb3,0xd4,0xd4,0x67 }, { 0x5f,0xa2,0xa2,0xfd }, { 0x45,0xaf,0xaf,0xea }, { 0x23,0x9c,0x9c,0xbf }, { 0x53,0xa4,0xa4,0xf7 }, { 0xe4,0x72,0x72,0x96 }, { 0x9b,0xc0,0xc0,0x5b }, { 0x75,0xb7,0xb7,0xc2 }, { 0xe1,0xfd,0xfd,0x1c }, { 0x3d,0x93,0x93,0xae }, { 0x4c,0x26,0x26,0x6a }, { 0x6c,0x36,0x36,0x5a }, { 0x7e,0x3f,0x3f,0x41 }, { 0xf5,0xf7,0xf7,0x02 }, { 0x83,0xcc,0xcc,0x4f }, { 0x68,0x34,0x34,0x5c }, { 0x51,0xa5,0xa5,0xf4 }, { 0xd1,0xe5,0xe5,0x34 }, { 0xf9,0xf1,0xf1,0x08 }, { 0xe2,0x71,0x71,0x93 }, { 0xab,0xd8,0xd8,0x73 }, { 0x62,0x31,0x31,0x53 }, { 0x2a,0x15,0x15,0x3f }, { 0x08,0x04,0x04,0x0c }, { 0x95,0xc7,0xc7,0x52 }, { 0x46,0x23,0x23,0x65 }, { 0x9d,0xc3,0xc3,0x5e }, { 0x30,0x18,0x18,0x28 }, { 0x37,0x96,0x96,0xa1 }, { 0x0a,0x05,0x05,0x0f }, { 0x2f,0x9a,0x9a,0xb5 }, { 0x0e,0x07,0x07,0x09 }, { 0x24,0x12,0x12,0x36 }, { 0x1b,0x80,0x80,0x9b }, { 0xdf,0xe2,0xe2,0x3d }, { 0xcd,0xeb,0xeb,0x26 }, { 0x4e,0x27,0x27,0x69 }, { 0x7f,0xb2,0xb2,0xcd }, { 0xea,0x75,0x75,0x9f }, { 0x12,0x09,0x09,0x1b }, { 0x1d,0x83,0x83,0x9e }, { 0x58,0x2c,0x2c,0x74 }, { 0x34,0x1a,0x1a,0x2e }, { 0x36,0x1b,0x1b,0x2d }, { 0xdc,0x6e,0x6e,0xb2 }, { 0xb4,0x5a,0x5a,0xee }, { 0x5b,0xa0,0xa0,0xfb }, { 0xa4,0x52,0x52,0xf6 }, { 0x76,0x3b,0x3b,0x4d }, { 0xb7,0xd6,0xd6,0x61 }, { 0x7d,0xb3,0xb3,0xce }, { 0x52,0x29,0x29,0x7b }, { 0xdd,0xe3,0xe3,0x3e }, { 0x5e,0x2f,0x2f,0x71 }, { 0x13,0x84,0x84,0x97 }, { 0xa6,0x53,0x53,0xf5 }, { 0xb9,0xd1,0xd1,0x68 }, { 0x00,0x00,0x00,0x00 }, { 0xc1,0xed,0xed,0x2c }, { 0x40,0x20,0x20,0x60 }, { 0xe3,0xfc,0xfc,0x1f }, { 0x79,0xb1,0xb1,0xc8 }, { 0xb6,0x5b,0x5b,0xed }, { 0xd4,0x6a,0x6a,0xbe }, { 0x8d,0xcb,0xcb,0x46 }, { 0x67,0xbe,0xbe,0xd9 }, { 0x72,0x39,0x39,0x4b }, { 0x94,0x4a,0x4a,0xde }, { 0x98,0x4c,0x4c,0xd4 }, { 0xb0,0x58,0x58,0xe8 }, { 0x85,0xcf,0xcf,0x4a }, { 0xbb,0xd0,0xd0,0x6b }, { 0xc5,0xef,0xef,0x2a }, { 0x4f,0xaa,0xaa,0xe5 }, { 0xed,0xfb,0xfb,0x16 }, { 0x86,0x43,0x43,0xc5 }, { 0x9a,0x4d,0x4d,0xd7 }, { 0x66,0x33,0x33,0x55 }, { 0x11,0x85,0x85,0x94 }, { 0x8a,0x45,0x45,0xcf }, { 0xe9,0xf9,0xf9,0x10 }, { 0x04,0x02,0x02,0x06 }, { 0xfe,0x7f,0x7f,0x81 }, { 0xa0,0x50,0x50,0xf0 }, { 0x78,0x3c,0x3c,0x44 }, { 0x25,0x9f,0x9f,0xba }, { 0x4b,0xa8,0xa8,0xe3 }, { 0xa2,0x51,0x51,0xf3 }, { 0x5d,0xa3,0xa3,0xfe }, { 0x80,0x40,0x40,0xc0 }, { 0x05,0x8f,0x8f,0x8a }, { 0x3f,0x92,0x92,0xad }, { 0x21,0x9d,0x9d,0xbc }, { 0x70,0x38,0x38,0x48 }, { 0xf1,0xf5,0xf5,0x04 }, { 0x63,0xbc,0xbc,0xdf }, { 0x77,0xb6,0xb6,0xc1 }, { 0xaf,0xda,0xda,0x75 }, { 0x42,0x21,0x21,0x63 }, { 0x20,0x10,0x10,0x30 }, { 0xe5,0xff,0xff,0x1a }, { 0xfd,0xf3,0xf3,0x0e }, { 0xbf,0xd2,0xd2,0x6d }, { 0x81,0xcd,0xcd,0x4c }, { 0x18,0x0c,0x0c,0x14 }, { 0x26,0x13,0x13,0x35 }, { 0xc3,0xec,0xec,0x2f }, { 0xbe,0x5f,0x5f,0xe1 }, { 0x35,0x97,0x97,0xa2 }, { 0x88,0x44,0x44,0xcc }, { 0x2e,0x17,0x17,0x39 }, { 0x93,0xc4,0xc4,0x57 }, { 0x55,0xa7,0xa7,0xf2 }, { 0xfc,0x7e,0x7e,0x82 }, { 0x7a,0x3d,0x3d,0x47 }, { 0xc8,0x64,0x64,0xac }, { 0xba,0x5d,0x5d,0xe7 }, { 0x32,0x19,0x19,0x2b }, { 0xe6,0x73,0x73,0x95 }, { 0xc0,0x60,0x60,0xa0 }, { 0x19,0x81,0x81,0x98 }, { 0x9e,0x4f,0x4f,0xd1 }, { 0xa3,0xdc,0xdc,0x7f }, { 0x44,0x22,0x22,0x66 }, { 0x54,0x2a,0x2a,0x7e }, { 0x3b,0x90,0x90,0xab }, { 0x0b,0x88,0x88,0x83 }, { 0x8c,0x46,0x46,0xca }, { 0xc7,0xee,0xee,0x29 }, { 0x6b,0xb8,0xb8,0xd3 }, { 0x28,0x14,0x14,0x3c }, { 0xa7,0xde,0xde,0x79 }, { 0xbc,0x5e,0x5e,0xe2 }, { 0x16,0x0b,0x0b,0x1d }, { 0xad,0xdb,0xdb,0x76 }, { 0xdb,0xe0,0xe0,0x3b }, { 0x64,0x32,0x32,0x56 }, { 0x74,0x3a,0x3a,0x4e }, { 0x14,0x0a,0x0a,0x1e }, { 0x92,0x49,0x49,0xdb }, { 0x0c,0x06,0x06,0x0a }, { 0x48,0x24,0x24,0x6c }, { 0xb8,0x5c,0x5c,0xe4 }