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757 lines
23 KiB
JavaScript
757 lines
23 KiB
JavaScript
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/*
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CryptoJS v3.1
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code.google.com/p/crypto-js
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(c) 2009-2013 by Jeff Mott. All rights reserved.
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code.google.com/p/crypto-js/wiki/License
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*/
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(function () {
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// Shortcuts
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var C = CryptoJS;
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var C_lib = C.lib;
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var WordArray = C_lib.WordArray;
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var BlockCipher = C_lib.BlockCipher;
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var C_algo = C.algo;
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// Permuted Choice 1 constants
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var PC1 = [
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57, 49, 41, 33, 25, 17, 9, 1,
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58, 50, 42, 34, 26, 18, 10, 2,
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59, 51, 43, 35, 27, 19, 11, 3,
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60, 52, 44, 36, 63, 55, 47, 39,
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31, 23, 15, 7, 62, 54, 46, 38,
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30, 22, 14, 6, 61, 53, 45, 37,
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29, 21, 13, 5, 28, 20, 12, 4
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];
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// Permuted Choice 2 constants
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var PC2 = [
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14, 17, 11, 24, 1, 5,
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3, 28, 15, 6, 21, 10,
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23, 19, 12, 4, 26, 8,
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16, 7, 27, 20, 13, 2,
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41, 52, 31, 37, 47, 55,
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30, 40, 51, 45, 33, 48,
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44, 49, 39, 56, 34, 53,
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46, 42, 50, 36, 29, 32
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];
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// Cumulative bit shift constants
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var BIT_SHIFTS = [1, 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, 21, 23, 25, 27, 28];
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// SBOXes and round permutation constants
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var SBOX_P = [
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{
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0x0: 0x808200,
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0x10000000: 0x8000,
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0x20000000: 0x808002,
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0x30000000: 0x2,
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0x40000000: 0x200,
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0x50000000: 0x808202,
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0x60000000: 0x800202,
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0x70000000: 0x800000,
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0x80000000: 0x202,
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0x90000000: 0x800200,
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0xa0000000: 0x8200,
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0xb0000000: 0x808000,
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0xc0000000: 0x8002,
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0xd0000000: 0x800002,
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0xe0000000: 0x0,
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0xf0000000: 0x8202,
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0x8000000: 0x0,
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0x18000000: 0x808202,
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0x28000000: 0x8202,
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0x38000000: 0x8000,
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0x48000000: 0x808200,
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0x58000000: 0x200,
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0x68000000: 0x808002,
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0x78000000: 0x2,
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0x88000000: 0x800200,
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0x98000000: 0x8200,
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0xa8000000: 0x808000,
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0xb8000000: 0x800202,
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0xc8000000: 0x800002,
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0xd8000000: 0x8002,
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0xe8000000: 0x202,
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0xf8000000: 0x800000,
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0x1: 0x8000,
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0x10000001: 0x2,
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0x20000001: 0x808200,
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0x30000001: 0x800000,
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0x40000001: 0x808002,
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0x50000001: 0x8200,
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0x60000001: 0x200,
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0x70000001: 0x800202,
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0x80000001: 0x808202,
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0x90000001: 0x808000,
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0xa0000001: 0x800002,
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0xb0000001: 0x8202,
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0xc0000001: 0x202,
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0xd0000001: 0x800200,
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0xe0000001: 0x8002,
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0xf0000001: 0x0,
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0x8000001: 0x808202,
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0x18000001: 0x808000,
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0x28000001: 0x800000,
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0x38000001: 0x200,
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0x48000001: 0x8000,
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0x58000001: 0x800002,
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0x68000001: 0x2,
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0x78000001: 0x8202,
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0x88000001: 0x8002,
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0x98000001: 0x800202,
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0xa8000001: 0x202,
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0xb8000001: 0x808200,
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0xc8000001: 0x800200,
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0xd8000001: 0x0,
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0xe8000001: 0x8200,
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0xf8000001: 0x808002
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},
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{
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0x0: 0x40084010,
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0x1000000: 0x4000,
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0x2000000: 0x80000,
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0x3000000: 0x40080010,
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0x4000000: 0x40000010,
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0x5000000: 0x40084000,
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0x6000000: 0x40004000,
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0x7000000: 0x10,
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0x8000000: 0x84000,
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0x9000000: 0x40004010,
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0xa000000: 0x40000000,
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0xb000000: 0x84010,
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0xc000000: 0x80010,
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0xd000000: 0x0,
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0xe000000: 0x4010,
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0xf000000: 0x40080000,
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0x800000: 0x40004000,
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0x1800000: 0x84010,
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0x2800000: 0x10,
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0x3800000: 0x40004010,
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0x4800000: 0x40084010,
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0x5800000: 0x40000000,
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0x6800000: 0x80000,
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0x7800000: 0x40080010,
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0x8800000: 0x80010,
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0x9800000: 0x0,
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0xa800000: 0x4000,
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0xb800000: 0x40080000,
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0xc800000: 0x40000010,
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0xd800000: 0x84000,
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0xe800000: 0x40084000,
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0xf800000: 0x4010,
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0x10000000: 0x0,
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0x11000000: 0x40080010,
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0x12000000: 0x40004010,
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0x13000000: 0x40084000,
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0x14000000: 0x40080000,
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0x15000000: 0x10,
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0x16000000: 0x84010,
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0x17000000: 0x4000,
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0x18000000: 0x4010,
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0x19000000: 0x80000,
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0x1a000000: 0x80010,
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0x1b000000: 0x40000010,
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0x1c000000: 0x84000,
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0x1d000000: 0x40004000,
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0x1e000000: 0x40000000,
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0x1f000000: 0x40084010,
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0x10800000: 0x84010,
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0x11800000: 0x80000,
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0x12800000: 0x40080000,
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0x13800000: 0x4000,
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0x14800000: 0x40004000,
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0x15800000: 0x40084010,
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0x16800000: 0x10,
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0x17800000: 0x40000000,
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0x18800000: 0x40084000,
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0x19800000: 0x40000010,
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0x1a800000: 0x40004010,
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0x1b800000: 0x80010,
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0x1c800000: 0x0,
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0x1d800000: 0x4010,
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0x1e800000: 0x40080010,
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0x1f800000: 0x84000
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},
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{
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0x0: 0x104,
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0x100000: 0x0,
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0x200000: 0x4000100,
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0x300000: 0x10104,
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0x400000: 0x10004,
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0x500000: 0x4000004,
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0x600000: 0x4010104,
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0x700000: 0x4010000,
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0x800000: 0x4000000,
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0x900000: 0x4010100,
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0xa00000: 0x10100,
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0xb00000: 0x4010004,
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0xc00000: 0x4000104,
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0xd00000: 0x10000,
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0xe00000: 0x4,
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0xf00000: 0x100,
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0x80000: 0x4010100,
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0x180000: 0x4010004,
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0x280000: 0x0,
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0x380000: 0x4000100,
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0x480000: 0x4000004,
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0x580000: 0x10000,
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0x680000: 0x10004,
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0x780000: 0x104,
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0x880000: 0x4,
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0x980000: 0x100,
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0xa80000: 0x4010000,
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0xb80000: 0x10104,
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0xc80000: 0x10100,
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0xd80000: 0x4000104,
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0xe80000: 0x4010104,
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0xf80000: 0x4000000,
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0x1000000: 0x4010100,
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0x1100000: 0x10004,
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0x1200000: 0x10000,
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0x1300000: 0x4000100,
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0x1400000: 0x100,
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0x1500000: 0x4010104,
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0x1600000: 0x4000004,
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0x1700000: 0x0,
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0x1800000: 0x4000104,
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0x1900000: 0x4000000,
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0x1a00000: 0x4,
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0x1b00000: 0x10100,
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0x1c00000: 0x4010000,
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0x1d00000: 0x104,
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0x1e00000: 0x10104,
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0x1f00000: 0x4010004,
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0x1080000: 0x4000000,
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0x1180000: 0x104,
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0x1280000: 0x4010100,
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0x1380000: 0x0,
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0x1480000: 0x10004,
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0x1580000: 0x4000100,
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0x1680000: 0x100,
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0x1780000: 0x4010004,
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0x1880000: 0x10000,
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0x1980000: 0x4010104,
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0x1a80000: 0x10104,
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0x1b80000: 0x4000004,
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0x1c80000: 0x4000104,
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0x1d80000: 0x4010000,
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0x1e80000: 0x4,
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0x1f80000: 0x10100
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},
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{
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0x0: 0x80401000,
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0x10000: 0x80001040,
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0x20000: 0x401040,
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0x30000: 0x80400000,
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0x40000: 0x0,
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0x50000: 0x401000,
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0x60000: 0x80000040,
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0x70000: 0x400040,
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0x80000: 0x80000000,
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0x90000: 0x400000,
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0xa0000: 0x40,
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0xb0000: 0x80001000,
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0xc0000: 0x80400040,
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0xd0000: 0x1040,
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0xe0000: 0x1000,
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0xf0000: 0x80401040,
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0x8000: 0x80001040,
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0x18000: 0x40,
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0x28000: 0x80400040,
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0x38000: 0x80001000,
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0x48000: 0x401000,
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0x58000: 0x80401040,
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0x68000: 0x0,
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0x78000: 0x80400000,
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0x88000: 0x1000,
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0x98000: 0x80401000,
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0xa8000: 0x400000,
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0xb8000: 0x1040,
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0xc8000: 0x80000000,
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0xd8000: 0x400040,
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0xe8000: 0x401040,
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0xf8000: 0x80000040,
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0x100000: 0x400040,
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0x110000: 0x401000,
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0x120000: 0x80000040,
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0x130000: 0x0,
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0x140000: 0x1040,
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0x150000: 0x80400040,
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0x160000: 0x80401000,
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0x170000: 0x80001040,
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0x180000: 0x80401040,
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0x190000: 0x80000000,
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0x1a0000: 0x80400000,
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0x1b0000: 0x401040,
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0x1c0000: 0x80001000,
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0x1d0000: 0x400000,
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0x1e0000: 0x40,
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0x1f0000: 0x1000,
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0x108000: 0x80400000,
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0x118000: 0x80401040,
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0x128000: 0x0,
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0x138000: 0x401000,
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0x148000: 0x400040,
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0x158000: 0x80000000,
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0x168000: 0x80001040,
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0x178000: 0x40,
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0x188000: 0x80000040,
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0x198000: 0x1000,
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0x1a8000: 0x80001000,
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0x1b8000: 0x80400040,
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0x1c8000: 0x1040,
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0x1d8000: 0x80401000,
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0x1e8000: 0x400000,
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0x1f8000: 0x401040
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},
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{
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0x0: 0x80,
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0x1000: 0x1040000,
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0x2000: 0x40000,
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0x3000: 0x20000000,
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0x4000: 0x20040080,
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0x5000: 0x1000080,
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0x6000: 0x21000080,
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0x7000: 0x40080,
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0x8000: 0x1000000,
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0x9000: 0x20040000,
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0xa000: 0x20000080,
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0xb000: 0x21040080,
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0xc000: 0x21040000,
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0xd000: 0x0,
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0xe000: 0x1040080,
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0xf000: 0x21000000,
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0x800: 0x1040080,
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0x1800: 0x21000080,
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0x2800: 0x80,
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0x3800: 0x1040000,
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0x4800: 0x40000,
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0x5800: 0x20040080,
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0x6800: 0x21040000,
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0x7800: 0x20000000,
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0x8800: 0x20040000,
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0x9800: 0x0,
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0xa800: 0x21040080,
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0xb800: 0x1000080,
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0xc800: 0x20000080,
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0xd800: 0x21000000,
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0xe800: 0x1000000,
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0xf800: 0x40080,
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0x10000: 0x40000,
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0x11000: 0x80,
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0x12000: 0x20000000,
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0x13000: 0x21000080,
|
||
|
|
0x14000: 0x1000080,
|
||
|
|
0x15000: 0x21040000,
|
||
|
|
0x16000: 0x20040080,
|
||
|
|
0x17000: 0x1000000,
|
||
|
|
0x18000: 0x21040080,
|
||
|
|
0x19000: 0x21000000,
|
||
|
|
0x1a000: 0x1040000,
|
||
|
|
0x1b000: 0x20040000,
|
||
|
|
0x1c000: 0x40080,
|
||
|
|
0x1d000: 0x20000080,
|
||
|
|
0x1e000: 0x0,
|
||
|
|
0x1f000: 0x1040080,
|
||
|
|
0x10800: 0x21000080,
|
||
|
|
0x11800: 0x1000000,
|
||
|
|
0x12800: 0x1040000,
|
||
|
|
0x13800: 0x20040080,
|
||
|
|
0x14800: 0x20000000,
|
||
|
|
0x15800: 0x1040080,
|
||
|
|
0x16800: 0x80,
|
||
|
|
0x17800: 0x21040000,
|
||
|
|
0x18800: 0x40080,
|
||
|
|
0x19800: 0x21040080,
|
||
|
|
0x1a800: 0x0,
|
||
|
|
0x1b800: 0x21000000,
|
||
|
|
0x1c800: 0x1000080,
|
||
|
|
0x1d800: 0x40000,
|
||
|
|
0x1e800: 0x20040000,
|
||
|
|
0x1f800: 0x20000080
|
||
|
|
},
|
||
|
|
{
|
||
|
|
0x0: 0x10000008,
|
||
|
|
0x100: 0x2000,
|
||
|
|
0x200: 0x10200000,
|
||
|
|
0x300: 0x10202008,
|
||
|
|
0x400: 0x10002000,
|
||
|
|
0x500: 0x200000,
|
||
|
|
0x600: 0x200008,
|
||
|
|
0x700: 0x10000000,
|
||
|
|
0x800: 0x0,
|
||
|
|
0x900: 0x10002008,
|
||
|
|
0xa00: 0x202000,
|
||
|
|
0xb00: 0x8,
|
||
|
|
0xc00: 0x10200008,
|
||
|
|
0xd00: 0x202008,
|
||
|
|
0xe00: 0x2008,
|
||
|
|
0xf00: 0x10202000,
|
||
|
|
0x80: 0x10200000,
|
||
|
|
0x180: 0x10202008,
|
||
|
|
0x280: 0x8,
|
||
|
|
0x380: 0x200000,
|
||
|
|
0x480: 0x202008,
|
||
|
|
0x580: 0x10000008,
|
||
|
|
0x680: 0x10002000,
|
||
|
|
0x780: 0x2008,
|
||
|
|
0x880: 0x200008,
|
||
|
|
0x980: 0x2000,
|
||
|
|
0xa80: 0x10002008,
|
||
|
|
0xb80: 0x10200008,
|
||
|
|
0xc80: 0x0,
|
||
|
|
0xd80: 0x10202000,
|
||
|
|
0xe80: 0x202000,
|
||
|
|
0xf80: 0x10000000,
|
||
|
|
0x1000: 0x10002000,
|
||
|
|
0x1100: 0x10200008,
|
||
|
|
0x1200: 0x10202008,
|
||
|
|
0x1300: 0x2008,
|
||
|
|
0x1400: 0x200000,
|
||
|
|
0x1500: 0x10000000,
|
||
|
|
0x1600: 0x10000008,
|
||
|
|
0x1700: 0x202000,
|
||
|
|
0x1800: 0x202008,
|
||
|
|
0x1900: 0x0,
|
||
|
|
0x1a00: 0x8,
|
||
|
|
0x1b00: 0x10200000,
|
||
|
|
0x1c00: 0x2000,
|
||
|
|
0x1d00: 0x10002008,
|
||
|
|
0x1e00: 0x10202000,
|
||
|
|
0x1f00: 0x200008,
|
||
|
|
0x1080: 0x8,
|
||
|
|
0x1180: 0x202000,
|
||
|
|
0x1280: 0x200000,
|
||
|
|
0x1380: 0x10000008,
|
||
|
|
0x1480: 0x10002000,
|
||
|
|
0x1580: 0x2008,
|
||
|
|
0x1680: 0x10202008,
|
||
|
|
0x1780: 0x10200000,
|
||
|
|
0x1880: 0x10202000,
|
||
|
|
0x1980: 0x10200008,
|
||
|
|
0x1a80: 0x2000,
|
||
|
|
0x1b80: 0x202008,
|
||
|
|
0x1c80: 0x200008,
|
||
|
|
0x1d80: 0x0,
|
||
|
|
0x1e80: 0x10000000,
|
||
|
|
0x1f80: 0x10002008
|
||
|
|
},
|
||
|
|
{
|
||
|
|
0x0: 0x100000,
|
||
|
|
0x10: 0x2000401,
|
||
|
|
0x20: 0x400,
|
||
|
|
0x30: 0x100401,
|
||
|
|
0x40: 0x2100401,
|
||
|
|
0x50: 0x0,
|
||
|
|
0x60: 0x1,
|
||
|
|
0x70: 0x2100001,
|
||
|
|
0x80: 0x2000400,
|
||
|
|
0x90: 0x100001,
|
||
|
|
0xa0: 0x2000001,
|
||
|
|
0xb0: 0x2100400,
|
||
|
|
0xc0: 0x2100000,
|
||
|
|
0xd0: 0x401,
|
||
|
|
0xe0: 0x100400,
|
||
|
|
0xf0: 0x2000000,
|
||
|
|
0x8: 0x2100001,
|
||
|
|
0x18: 0x0,
|
||
|
|
0x28: 0x2000401,
|
||
|
|
0x38: 0x2100400,
|
||
|
|
0x48: 0x100000,
|
||
|
|
0x58: 0x2000001,
|
||
|
|
0x68: 0x2000000,
|
||
|
|
0x78: 0x401,
|
||
|
|
0x88: 0x100401,
|
||
|
|
0x98: 0x2000400,
|
||
|
|
0xa8: 0x2100000,
|
||
|
|
0xb8: 0x100001,
|
||
|
|
0xc8: 0x400,
|
||
|
|
0xd8: 0x2100401,
|
||
|
|
0xe8: 0x1,
|
||
|
|
0xf8: 0x100400,
|
||
|
|
0x100: 0x2000000,
|
||
|
|
0x110: 0x100000,
|
||
|
|
0x120: 0x2000401,
|
||
|
|
0x130: 0x2100001,
|
||
|
|
0x140: 0x100001,
|
||
|
|
0x150: 0x2000400,
|
||
|
|
0x160: 0x2100400,
|
||
|
|
0x170: 0x100401,
|
||
|
|
0x180: 0x401,
|
||
|
|
0x190: 0x2100401,
|
||
|
|
0x1a0: 0x100400,
|
||
|
|
0x1b0: 0x1,
|
||
|
|
0x1c0: 0x0,
|
||
|
|
0x1d0: 0x2100000,
|
||
|
|
0x1e0: 0x2000001,
|
||
|
|
0x1f0: 0x400,
|
||
|
|
0x108: 0x100400,
|
||
|
|
0x118: 0x2000401,
|
||
|
|
0x128: 0x2100001,
|
||
|
|
0x138: 0x1,
|
||
|
|
0x148: 0x2000000,
|
||
|
|
0x158: 0x100000,
|
||
|
|
0x168: 0x401,
|
||
|
|
0x178: 0x2100400,
|
||
|
|
0x188: 0x2000001,
|
||
|
|
0x198: 0x2100000,
|
||
|
|
0x1a8: 0x0,
|
||
|
|
0x1b8: 0x2100401,
|
||
|
|
0x1c8: 0x100401,
|
||
|
|
0x1d8: 0x400,
|
||
|
|
0x1e8: 0x2000400,
|
||
|
|
0x1f8: 0x100001
|
||
|
|
},
|
||
|
|
{
|
||
|
|
0x0: 0x8000820,
|
||
|
|
0x1: 0x20000,
|
||
|
|
0x2: 0x8000000,
|
||
|
|
0x3: 0x20,
|
||
|
|
0x4: 0x20020,
|
||
|
|
0x5: 0x8020820,
|
||
|
|
0x6: 0x8020800,
|
||
|
|
0x7: 0x800,
|
||
|
|
0x8: 0x8020000,
|
||
|
|
0x9: 0x8000800,
|
||
|
|
0xa: 0x20800,
|
||
|
|
0xb: 0x8020020,
|
||
|
|
0xc: 0x820,
|
||
|
|
0xd: 0x0,
|
||
|
|
0xe: 0x8000020,
|
||
|
|
0xf: 0x20820,
|
||
|
|
0x80000000: 0x800,
|
||
|
|
0x80000001: 0x8020820,
|
||
|
|
0x80000002: 0x8000820,
|
||
|
|
0x80000003: 0x8000000,
|
||
|
|
0x80000004: 0x8020000,
|
||
|
|
0x80000005: 0x20800,
|
||
|
|
0x80000006: 0x20820,
|
||
|
|
0x80000007: 0x20,
|
||
|
|
0x80000008: 0x8000020,
|
||
|
|
0x80000009: 0x820,
|
||
|
|
0x8000000a: 0x20020,
|
||
|
|
0x8000000b: 0x8020800,
|
||
|
|
0x8000000c: 0x0,
|
||
|
|
0x8000000d: 0x8020020,
|
||
|
|
0x8000000e: 0x8000800,
|
||
|
|
0x8000000f: 0x20000,
|
||
|
|
0x10: 0x20820,
|
||
|
|
0x11: 0x8020800,
|
||
|
|
0x12: 0x20,
|
||
|
|
0x13: 0x800,
|
||
|
|
0x14: 0x8000800,
|
||
|
|
0x15: 0x8000020,
|
||
|
|
0x16: 0x8020020,
|
||
|
|
0x17: 0x20000,
|
||
|
|
0x18: 0x0,
|
||
|
|
0x19: 0x20020,
|
||
|
|
0x1a: 0x8020000,
|
||
|
|
0x1b: 0x8000820,
|
||
|
|
0x1c: 0x8020820,
|
||
|
|
0x1d: 0x20800,
|
||
|
|
0x1e: 0x820,
|
||
|
|
0x1f: 0x8000000,
|
||
|
|
0x80000010: 0x20000,
|
||
|
|
0x80000011: 0x800,
|
||
|
|
0x80000012: 0x8020020,
|
||
|
|
0x80000013: 0x20820,
|
||
|
|
0x80000014: 0x20,
|
||
|
|
0x80000015: 0x8020000,
|
||
|
|
0x80000016: 0x8000000,
|
||
|
|
0x80000017: 0x8000820,
|
||
|
|
0x80000018: 0x8020820,
|
||
|
|
0x80000019: 0x8000020,
|
||
|
|
0x8000001a: 0x8000800,
|
||
|
|
0x8000001b: 0x0,
|
||
|
|
0x8000001c: 0x20800,
|
||
|
|
0x8000001d: 0x820,
|
||
|
|
0x8000001e: 0x20020,
|
||
|
|
0x8000001f: 0x8020800
|
||
|
|
}
|
||
|
|
];
|
||
|
|
|
||
|
|
// Masks that select the SBOX input
|
||
|
|
var SBOX_MASK = [
|
||
|
|
0xf8000001, 0x1f800000, 0x01f80000, 0x001f8000,
|
||
|
|
0x0001f800, 0x00001f80, 0x000001f8, 0x8000001f
|
||
|
|
];
|
||
|
|
|
||
|
|
/**
|
||
|
|
* DES block cipher algorithm.
|
||
|
|
*/
|
||
|
|
var DES = C_algo.DES = BlockCipher.extend({
|
||
|
|
_doReset: function () {
|
||
|
|
// Shortcuts
|
||
|
|
var key = this._key;
|
||
|
|
var keyWords = key.words;
|
||
|
|
|
||
|
|
// Select 56 bits according to PC1
|
||
|
|
var keyBits = [];
|
||
|
|
for (var i = 0; i < 56; i++) {
|
||
|
|
var keyBitPos = PC1[i] - 1;
|
||
|
|
keyBits[i] = (keyWords[keyBitPos >>> 5] >>> (31 - keyBitPos % 32)) & 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Assemble 16 subkeys
|
||
|
|
var subKeys = this._subKeys = [];
|
||
|
|
for (var nSubKey = 0; nSubKey < 16; nSubKey++) {
|
||
|
|
// Create subkey
|
||
|
|
var subKey = subKeys[nSubKey] = [];
|
||
|
|
|
||
|
|
// Shortcut
|
||
|
|
var bitShift = BIT_SHIFTS[nSubKey];
|
||
|
|
|
||
|
|
// Select 48 bits according to PC2
|
||
|
|
for (var i = 0; i < 24; i++) {
|
||
|
|
// Select from the left 28 key bits
|
||
|
|
subKey[(i / 6) | 0] |= keyBits[((PC2[i] - 1) + bitShift) % 28] << (31 - i % 6);
|
||
|
|
|
||
|
|
// Select from the right 28 key bits
|
||
|
|
subKey[4 + ((i / 6) | 0)] |= keyBits[28 + (((PC2[i + 24] - 1) + bitShift) % 28)] << (31 - i % 6);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Since each subkey is applied to an expanded 32-bit input,
|
||
|
|
// the subkey can be broken into 8 values scaled to 32-bits,
|
||
|
|
// which allows the key to be used without expansion
|
||
|
|
subKey[0] = (subKey[0] << 1) | (subKey[0] >>> 31);
|
||
|
|
for (var i = 1; i < 7; i++) {
|
||
|
|
subKey[i] = subKey[i] >>> ((i - 1) * 4 + 3);
|
||
|
|
}
|
||
|
|
subKey[7] = (subKey[7] << 5) | (subKey[7] >>> 27);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Compute inverse subkeys
|
||
|
|
var invSubKeys = this._invSubKeys = [];
|
||
|
|
for (var i = 0; i < 16; i++) {
|
||
|
|
invSubKeys[i] = subKeys[15 - i];
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
encryptBlock: function (M, offset) {
|
||
|
|
this._doCryptBlock(M, offset, this._subKeys);
|
||
|
|
},
|
||
|
|
|
||
|
|
decryptBlock: function (M, offset) {
|
||
|
|
this._doCryptBlock(M, offset, this._invSubKeys);
|
||
|
|
},
|
||
|
|
|
||
|
|
_doCryptBlock: function (M, offset, subKeys) {
|
||
|
|
// Get input
|
||
|
|
this._lBlock = M[offset];
|
||
|
|
this._rBlock = M[offset + 1];
|
||
|
|
|
||
|
|
// Initial permutation
|
||
|
|
exchangeLR.call(this, 4, 0x0f0f0f0f);
|
||
|
|
exchangeLR.call(this, 16, 0x0000ffff);
|
||
|
|
exchangeRL.call(this, 2, 0x33333333);
|
||
|
|
exchangeRL.call(this, 8, 0x00ff00ff);
|
||
|
|
exchangeLR.call(this, 1, 0x55555555);
|
||
|
|
|
||
|
|
// Rounds
|
||
|
|
for (var round = 0; round < 16; round++) {
|
||
|
|
// Shortcuts
|
||
|
|
var subKey = subKeys[round];
|
||
|
|
var lBlock = this._lBlock;
|
||
|
|
var rBlock = this._rBlock;
|
||
|
|
|
||
|
|
// Feistel function
|
||
|
|
var f = 0;
|
||
|
|
for (var i = 0; i < 8; i++) {
|
||
|
|
f |= SBOX_P[i][((rBlock ^ subKey[i]) & SBOX_MASK[i]) >>> 0];
|
||
|
|
}
|
||
|
|
this._lBlock = rBlock;
|
||
|
|
this._rBlock = lBlock ^ f;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Undo swap from last round
|
||
|
|
var t = this._lBlock;
|
||
|
|
this._lBlock = this._rBlock;
|
||
|
|
this._rBlock = t;
|
||
|
|
|
||
|
|
// Final permutation
|
||
|
|
exchangeLR.call(this, 1, 0x55555555);
|
||
|
|
exchangeRL.call(this, 8, 0x00ff00ff);
|
||
|
|
exchangeRL.call(this, 2, 0x33333333);
|
||
|
|
exchangeLR.call(this, 16, 0x0000ffff);
|
||
|
|
exchangeLR.call(this, 4, 0x0f0f0f0f);
|
||
|
|
|
||
|
|
// Set output
|
||
|
|
M[offset] = this._lBlock;
|
||
|
|
M[offset + 1] = this._rBlock;
|
||
|
|
},
|
||
|
|
|
||
|
|
keySize: 64/32,
|
||
|
|
|
||
|
|
ivSize: 64/32,
|
||
|
|
|
||
|
|
blockSize: 64/32
|
||
|
|
});
|
||
|
|
|
||
|
|
// Swap bits across the left and right words
|
||
|
|
function exchangeLR(offset, mask) {
|
||
|
|
var t = ((this._lBlock >>> offset) ^ this._rBlock) & mask;
|
||
|
|
this._rBlock ^= t;
|
||
|
|
this._lBlock ^= t << offset;
|
||
|
|
}
|
||
|
|
|
||
|
|
function exchangeRL(offset, mask) {
|
||
|
|
var t = ((this._rBlock >>> offset) ^ this._lBlock) & mask;
|
||
|
|
this._lBlock ^= t;
|
||
|
|
this._rBlock ^= t << offset;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Shortcut functions to the cipher's object interface.
|
||
|
|
*
|
||
|
|
* @example
|
||
|
|
*
|
||
|
|
* var ciphertext = CryptoJS.DES.encrypt(message, key, cfg);
|
||
|
|
* var plaintext = CryptoJS.DES.decrypt(ciphertext, key, cfg);
|
||
|
|
*/
|
||
|
|
C.DES = BlockCipher._createHelper(DES);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Triple-DES block cipher algorithm.
|
||
|
|
*/
|
||
|
|
var TripleDES = C_algo.TripleDES = BlockCipher.extend({
|
||
|
|
_doReset: function () {
|
||
|
|
// Shortcuts
|
||
|
|
var key = this._key;
|
||
|
|
var keyWords = key.words;
|
||
|
|
|
||
|
|
// Create DES instances
|
||
|
|
this._des1 = DES.createEncryptor(WordArray.create(keyWords.slice(0, 2)));
|
||
|
|
this._des2 = DES.createEncryptor(WordArray.create(keyWords.slice(2, 4)));
|
||
|
|
this._des3 = DES.createEncryptor(WordArray.create(keyWords.slice(4, 6)));
|
||
|
|
},
|
||
|
|
|
||
|
|
encryptBlock: function (M, offset) {
|
||
|
|
this._des1.encryptBlock(M, offset);
|
||
|
|
this._des2.decryptBlock(M, offset);
|
||
|
|
this._des3.encryptBlock(M, offset);
|
||
|
|
},
|
||
|
|
|
||
|
|
decryptBlock: function (M, offset) {
|
||
|
|
this._des3.decryptBlock(M, offset);
|
||
|
|
this._des2.encryptBlock(M, offset);
|
||
|
|
this._des1.decryptBlock(M, offset);
|
||
|
|
},
|
||
|
|
|
||
|
|
keySize: 192/32,
|
||
|
|
|
||
|
|
ivSize: 64/32,
|
||
|
|
|
||
|
|
blockSize: 64/32
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Shortcut functions to the cipher's object interface.
|
||
|
|
*
|
||
|
|
* @example
|
||
|
|
*
|
||
|
|
* var ciphertext = CryptoJS.TripleDES.encrypt(message, key, cfg);
|
||
|
|
* var plaintext = CryptoJS.TripleDES.decrypt(ciphertext, key, cfg);
|
||
|
|
*/
|
||
|
|
C.TripleDES = BlockCipher._createHelper(TripleDES);
|
||
|
|
}());
|