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niandeng
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/**
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* AESKey
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*
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* An ActionScript 3 implementation of the Advanced Encryption Standard, as
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* defined in FIPS PUB 197
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* Copyright (c) 2007 Henri Torgemane
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*
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* Derived from:
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* A public domain implementation from Karl Malbrain, malbrain@yahoo.com
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* (http://www.geocities.com/malbrain/aestable_c.html)
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*
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* See LICENSE.txt for full license information.
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*/
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package com.hurlant.crypto.symmetric
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{
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import com.hurlant.crypto.prng.Random;
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import com.hurlant.util.Hex;
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import com.hurlant.util.Memory;
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import flash.utils.ByteArray;
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public class AESKey implements ISymmetricKey
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{
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// AES only supports Nb=4
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private static const Nb:uint = 4; // number of columns in the state & expanded key
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// TODO:
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// - move those tables in binary files, then
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// - [Embed()] them as ByteArray directly.
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// (should result in smaller .swf, and faster initialization time.)
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private static const _Sbox:Array = [ // forward s-box
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0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
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0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
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0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
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0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
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0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
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0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
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0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
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0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
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0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
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0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
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0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
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0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
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0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
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0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
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0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
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0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16];
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private static const _InvSbox:Array = [ // inverse s-box
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0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
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0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
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0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
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0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
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0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
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0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
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0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
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0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
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0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
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0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
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0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
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0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
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0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
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0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
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0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
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0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d];
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private static const _Xtime2Sbox:Array = [ // combined Xtimes2[Sbox[]]
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0xc6, 0xf8, 0xee, 0xf6, 0xff, 0xd6, 0xde, 0x91, 0x60, 0x02, 0xce, 0x56, 0xe7, 0xb5, 0x4d, 0xec,
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0x8f, 0x1f, 0x89, 0xfa, 0xef, 0xb2, 0x8e, 0xfb, 0x41, 0xb3, 0x5f, 0x45, 0x23, 0x53, 0xe4, 0x9b,
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0x75, 0xe1, 0x3d, 0x4c, 0x6c, 0x7e, 0xf5, 0x83, 0x68, 0x51, 0xd1, 0xf9, 0xe2, 0xab, 0x62, 0x2a,
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0x08, 0x95, 0x46, 0x9d, 0x30, 0x37, 0x0a, 0x2f, 0x0e, 0x24, 0x1b, 0xdf, 0xcd, 0x4e, 0x7f, 0xea,
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0x12, 0x1d, 0x58, 0x34, 0x36, 0xdc, 0xb4, 0x5b, 0xa4, 0x76, 0xb7, 0x7d, 0x52, 0xdd, 0x5e, 0x13,
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0xa6, 0xb9, 0x00, 0xc1, 0x40, 0xe3, 0x79, 0xb6, 0xd4, 0x8d, 0x67, 0x72, 0x94, 0x98, 0xb0, 0x85,
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0xbb, 0xc5, 0x4f, 0xed, 0x86, 0x9a, 0x66, 0x11, 0x8a, 0xe9, 0x04, 0xfe, 0xa0, 0x78, 0x25, 0x4b,
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0xa2, 0x5d, 0x80, 0x05, 0x3f, 0x21, 0x70, 0xf1, 0x63, 0x77, 0xaf, 0x42, 0x20, 0xe5, 0xfd, 0xbf,
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0x81, 0x18, 0x26, 0xc3, 0xbe, 0x35, 0x88, 0x2e, 0x93, 0x55, 0xfc, 0x7a, 0xc8, 0xba, 0x32, 0xe6,
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0xc0, 0x19, 0x9e, 0xa3, 0x44, 0x54, 0x3b, 0x0b, 0x8c, 0xc7, 0x6b, 0x28, 0xa7, 0xbc, 0x16, 0xad,
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0xdb, 0x64, 0x74, 0x14, 0x92, 0x0c, 0x48, 0xb8, 0x9f, 0xbd, 0x43, 0xc4, 0x39, 0x31, 0xd3, 0xf2,
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0xd5, 0x8b, 0x6e, 0xda, 0x01, 0xb1, 0x9c, 0x49, 0xd8, 0xac, 0xf3, 0xcf, 0xca, 0xf4, 0x47, 0x10,
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0x6f, 0xf0, 0x4a, 0x5c, 0x38, 0x57, 0x73, 0x97, 0xcb, 0xa1, 0xe8, 0x3e, 0x96, 0x61, 0x0d, 0x0f,
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0xe0, 0x7c, 0x71, 0xcc, 0x90, 0x06, 0xf7, 0x1c, 0xc2, 0x6a, 0xae, 0x69, 0x17, 0x99, 0x3a, 0x27,
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0xd9, 0xeb, 0x2b, 0x22, 0xd2, 0xa9, 0x07, 0x33, 0x2d, 0x3c, 0x15, 0xc9, 0x87, 0xaa, 0x50, 0xa5,
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0x03, 0x59, 0x09, 0x1a, 0x65, 0xd7, 0x84, 0xd0, 0x82, 0x29, 0x5a, 0x1e, 0x7b, 0xa8, 0x6d, 0x2c];
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private static const _Xtime3Sbox:Array = [ // combined Xtimes3[Sbox[]]
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0xa5, 0x84, 0x99, 0x8d, 0x0d, 0xbd, 0xb1, 0x54, 0x50, 0x03, 0xa9, 0x7d, 0x19, 0x62, 0xe6, 0x9a,
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0x45, 0x9d, 0x40, 0x87, 0x15, 0xeb, 0xc9, 0x0b, 0xec, 0x67, 0xfd, 0xea, 0xbf, 0xf7, 0x96, 0x5b,
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0xc2, 0x1c, 0xae, 0x6a, 0x5a, 0x41, 0x02, 0x4f, 0x5c, 0xf4, 0x34, 0x08, 0x93, 0x73, 0x53, 0x3f,
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0x0c, 0x52, 0x65, 0x5e, 0x28, 0xa1, 0x0f, 0xb5, 0x09, 0x36, 0x9b, 0x3d, 0x26, 0x69, 0xcd, 0x9f,
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0x1b, 0x9e, 0x74, 0x2e, 0x2d, 0xb2, 0xee, 0xfb, 0xf6, 0x4d, 0x61, 0xce, 0x7b, 0x3e, 0x71, 0x97,
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0xf5, 0x68, 0x00, 0x2c, 0x60, 0x1f, 0xc8, 0xed, 0xbe, 0x46, 0xd9, 0x4b, 0xde, 0xd4, 0xe8, 0x4a,
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0x6b, 0x2a, 0xe5, 0x16, 0xc5, 0xd7, 0x55, 0x94, 0xcf, 0x10, 0x06, 0x81, 0xf0, 0x44, 0xba, 0xe3,
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0xf3, 0xfe, 0xc0, 0x8a, 0xad, 0xbc, 0x48, 0x04, 0xdf, 0xc1, 0x75, 0x63, 0x30, 0x1a, 0x0e, 0x6d,
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0x4c, 0x14, 0x35, 0x2f, 0xe1, 0xa2, 0xcc, 0x39, 0x57, 0xf2, 0x82, 0x47, 0xac, 0xe7, 0x2b, 0x95,
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0xa0, 0x98, 0xd1, 0x7f, 0x66, 0x7e, 0xab, 0x83, 0xca, 0x29, 0xd3, 0x3c, 0x79, 0xe2, 0x1d, 0x76,
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0x3b, 0x56, 0x4e, 0x1e, 0xdb, 0x0a, 0x6c, 0xe4, 0x5d, 0x6e, 0xef, 0xa6, 0xa8, 0xa4, 0x37, 0x8b,
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0x32, 0x43, 0x59, 0xb7, 0x8c, 0x64, 0xd2, 0xe0, 0xb4, 0xfa, 0x07, 0x25, 0xaf, 0x8e, 0xe9, 0x18,
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0xd5, 0x88, 0x6f, 0x72, 0x24, 0xf1, 0xc7, 0x51, 0x23, 0x7c, 0x9c, 0x21, 0xdd, 0xdc, 0x86, 0x85,
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0x90, 0x42, 0xc4, 0xaa, 0xd8, 0x05, 0x01, 0x12, 0xa3, 0x5f, 0xf9, 0xd0, 0x91, 0x58, 0x27, 0xb9,
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0x38, 0x13, 0xb3, 0x33, 0xbb, 0x70, 0x89, 0xa7, 0xb6, 0x22, 0x92, 0x20, 0x49, 0xff, 0x78, 0x7a,
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0x8f, 0xf8, 0x80, 0x17, 0xda, 0x31, 0xc6, 0xb8, 0xc3, 0xb0, 0x77, 0x11, 0xcb, 0xfc, 0xd6, 0x3a];
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// modular multiplication tables
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// based on:
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// Xtime2[x] = (x & 0x80 ? 0x1b : 0) ^ (x + x)
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// Xtime3[x] = x^Xtime2[x];
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private static const _Xtime2:Array = [
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0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
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0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
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0x40, 0x42, 0x44, 0x46, 0x48, 0x4a, 0x4c, 0x4e, 0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e,
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0x60, 0x62, 0x64, 0x66, 0x68, 0x6a, 0x6c, 0x6e, 0x70, 0x72, 0x74, 0x76, 0x78, 0x7a, 0x7c, 0x7e,
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0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9c, 0x9e,
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0xa0, 0xa2, 0xa4, 0xa6, 0xa8, 0xaa, 0xac, 0xae, 0xb0, 0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe,
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0xc0, 0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, 0xd0, 0xd2, 0xd4, 0xd6, 0xd8, 0xda, 0xdc, 0xde,
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0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee, 0xf0, 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0xfe,
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0x1b, 0x19, 0x1f, 0x1d, 0x13, 0x11, 0x17, 0x15, 0x0b, 0x09, 0x0f, 0x0d, 0x03, 0x01, 0x07, 0x05,
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0x3b, 0x39, 0x3f, 0x3d, 0x33, 0x31, 0x37, 0x35, 0x2b, 0x29, 0x2f, 0x2d, 0x23, 0x21, 0x27, 0x25,
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0x5b, 0x59, 0x5f, 0x5d, 0x53, 0x51, 0x57, 0x55, 0x4b, 0x49, 0x4f, 0x4d, 0x43, 0x41, 0x47, 0x45,
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0x7b, 0x79, 0x7f, 0x7d, 0x73, 0x71, 0x77, 0x75, 0x6b, 0x69, 0x6f, 0x6d, 0x63, 0x61, 0x67, 0x65,
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0x9b, 0x99, 0x9f, 0x9d, 0x93, 0x91, 0x97, 0x95, 0x8b, 0x89, 0x8f, 0x8d, 0x83, 0x81, 0x87, 0x85,
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0xbb, 0xb9, 0xbf, 0xbd, 0xb3, 0xb1, 0xb7, 0xb5, 0xab, 0xa9, 0xaf, 0xad, 0xa3, 0xa1, 0xa7, 0xa5,
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0xdb, 0xd9, 0xdf, 0xdd, 0xd3, 0xd1, 0xd7, 0xd5, 0xcb, 0xc9, 0xcf, 0xcd, 0xc3, 0xc1, 0xc7, 0xc5,
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0xfb, 0xf9, 0xff, 0xfd, 0xf3, 0xf1, 0xf7, 0xf5, 0xeb, 0xe9, 0xef, 0xed, 0xe3, 0xe1, 0xe7, 0xe5];
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private static const _Xtime9:Array = [
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0x00, 0x09, 0x12, 0x1b, 0x24, 0x2d, 0x36, 0x3f, 0x48, 0x41, 0x5a, 0x53, 0x6c, 0x65, 0x7e, 0x77,
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0x90, 0x99, 0x82, 0x8b, 0xb4, 0xbd, 0xa6, 0xaf, 0xd8, 0xd1, 0xca, 0xc3, 0xfc, 0xf5, 0xee, 0xe7,
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0x3b, 0x32, 0x29, 0x20, 0x1f, 0x16, 0x0d, 0x04, 0x73, 0x7a, 0x61, 0x68, 0x57, 0x5e, 0x45, 0x4c,
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0xab, 0xa2, 0xb9, 0xb0, 0x8f, 0x86, 0x9d, 0x94, 0xe3, 0xea, 0xf1, 0xf8, 0xc7, 0xce, 0xd5, 0xdc,
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0x76, 0x7f, 0x64, 0x6d, 0x52, 0x5b, 0x40, 0x49, 0x3e, 0x37, 0x2c, 0x25, 0x1a, 0x13, 0x08, 0x01,
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0xe6, 0xef, 0xf4, 0xfd, 0xc2, 0xcb, 0xd0, 0xd9, 0xae, 0xa7, 0xbc, 0xb5, 0x8a, 0x83, 0x98, 0x91,
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0x4d, 0x44, 0x5f, 0x56, 0x69, 0x60, 0x7b, 0x72, 0x05, 0x0c, 0x17, 0x1e, 0x21, 0x28, 0x33, 0x3a,
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0xdd, 0xd4, 0xcf, 0xc6, 0xf9, 0xf0, 0xeb, 0xe2, 0x95, 0x9c, 0x87, 0x8e, 0xb1, 0xb8, 0xa3, 0xaa,
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0xec, 0xe5, 0xfe, 0xf7, 0xc8, 0xc1, 0xda, 0xd3, 0xa4, 0xad, 0xb6, 0xbf, 0x80, 0x89, 0x92, 0x9b,
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0x7c, 0x75, 0x6e, 0x67, 0x58, 0x51, 0x4a, 0x43, 0x34, 0x3d, 0x26, 0x2f, 0x10, 0x19, 0x02, 0x0b,
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0xd7, 0xde, 0xc5, 0xcc, 0xf3, 0xfa, 0xe1, 0xe8, 0x9f, 0x96, 0x8d, 0x84, 0xbb, 0xb2, 0xa9, 0xa0,
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0x47, 0x4e, 0x55, 0x5c, 0x63, 0x6a, 0x71, 0x78, 0x0f, 0x06, 0x1d, 0x14, 0x2b, 0x22, 0x39, 0x30,
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0x9a, 0x93, 0x88, 0x81, 0xbe, 0xb7, 0xac, 0xa5, 0xd2, 0xdb, 0xc0, 0xc9, 0xf6, 0xff, 0xe4, 0xed,
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0x0a, 0x03, 0x18, 0x11, 0x2e, 0x27, 0x3c, 0x35, 0x42, 0x4b, 0x50, 0x59, 0x66, 0x6f, 0x74, 0x7d,
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0xa1, 0xa8, 0xb3, 0xba, 0x85, 0x8c, 0x97, 0x9e, 0xe9, 0xe0, 0xfb, 0xf2, 0xcd, 0xc4, 0xdf, 0xd6,
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0x31, 0x38, 0x23, 0x2a, 0x15, 0x1c, 0x07, 0x0e, 0x79, 0x70, 0x6b, 0x62, 0x5d, 0x54, 0x4f, 0x46];
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private static const _XtimeB:Array = [
|
||||
0x00, 0x0b, 0x16, 0x1d, 0x2c, 0x27, 0x3a, 0x31, 0x58, 0x53, 0x4e, 0x45, 0x74, 0x7f, 0x62, 0x69,
|
||||
0xb0, 0xbb, 0xa6, 0xad, 0x9c, 0x97, 0x8a, 0x81, 0xe8, 0xe3, 0xfe, 0xf5, 0xc4, 0xcf, 0xd2, 0xd9,
|
||||
0x7b, 0x70, 0x6d, 0x66, 0x57, 0x5c, 0x41, 0x4a, 0x23, 0x28, 0x35, 0x3e, 0x0f, 0x04, 0x19, 0x12,
|
||||
0xcb, 0xc0, 0xdd, 0xd6, 0xe7, 0xec, 0xf1, 0xfa, 0x93, 0x98, 0x85, 0x8e, 0xbf, 0xb4, 0xa9, 0xa2,
|
||||
0xf6, 0xfd, 0xe0, 0xeb, 0xda, 0xd1, 0xcc, 0xc7, 0xae, 0xa5, 0xb8, 0xb3, 0x82, 0x89, 0x94, 0x9f,
|
||||
0x46, 0x4d, 0x50, 0x5b, 0x6a, 0x61, 0x7c, 0x77, 0x1e, 0x15, 0x08, 0x03, 0x32, 0x39, 0x24, 0x2f,
|
||||
0x8d, 0x86, 0x9b, 0x90, 0xa1, 0xaa, 0xb7, 0xbc, 0xd5, 0xde, 0xc3, 0xc8, 0xf9, 0xf2, 0xef, 0xe4,
|
||||
0x3d, 0x36, 0x2b, 0x20, 0x11, 0x1a, 0x07, 0x0c, 0x65, 0x6e, 0x73, 0x78, 0x49, 0x42, 0x5f, 0x54,
|
||||
0xf7, 0xfc, 0xe1, 0xea, 0xdb, 0xd0, 0xcd, 0xc6, 0xaf, 0xa4, 0xb9, 0xb2, 0x83, 0x88, 0x95, 0x9e,
|
||||
0x47, 0x4c, 0x51, 0x5a, 0x6b, 0x60, 0x7d, 0x76, 0x1f, 0x14, 0x09, 0x02, 0x33, 0x38, 0x25, 0x2e,
|
||||
0x8c, 0x87, 0x9a, 0x91, 0xa0, 0xab, 0xb6, 0xbd, 0xd4, 0xdf, 0xc2, 0xc9, 0xf8, 0xf3, 0xee, 0xe5,
|
||||
0x3c, 0x37, 0x2a, 0x21, 0x10, 0x1b, 0x06, 0x0d, 0x64, 0x6f, 0x72, 0x79, 0x48, 0x43, 0x5e, 0x55,
|
||||
0x01, 0x0a, 0x17, 0x1c, 0x2d, 0x26, 0x3b, 0x30, 0x59, 0x52, 0x4f, 0x44, 0x75, 0x7e, 0x63, 0x68,
|
||||
0xb1, 0xba, 0xa7, 0xac, 0x9d, 0x96, 0x8b, 0x80, 0xe9, 0xe2, 0xff, 0xf4, 0xc5, 0xce, 0xd3, 0xd8,
|
||||
0x7a, 0x71, 0x6c, 0x67, 0x56, 0x5d, 0x40, 0x4b, 0x22, 0x29, 0x34, 0x3f, 0x0e, 0x05, 0x18, 0x13,
|
||||
0xca, 0xc1, 0xdc, 0xd7, 0xe6, 0xed, 0xf0, 0xfb, 0x92, 0x99, 0x84, 0x8f, 0xbe, 0xb5, 0xa8, 0xa3];
|
||||
private static const _XtimeD:Array = [
|
||||
0x00, 0x0d, 0x1a, 0x17, 0x34, 0x39, 0x2e, 0x23, 0x68, 0x65, 0x72, 0x7f, 0x5c, 0x51, 0x46, 0x4b,
|
||||
0xd0, 0xdd, 0xca, 0xc7, 0xe4, 0xe9, 0xfe, 0xf3, 0xb8, 0xb5, 0xa2, 0xaf, 0x8c, 0x81, 0x96, 0x9b,
|
||||
0xbb, 0xb6, 0xa1, 0xac, 0x8f, 0x82, 0x95, 0x98, 0xd3, 0xde, 0xc9, 0xc4, 0xe7, 0xea, 0xfd, 0xf0,
|
||||
0x6b, 0x66, 0x71, 0x7c, 0x5f, 0x52, 0x45, 0x48, 0x03, 0x0e, 0x19, 0x14, 0x37, 0x3a, 0x2d, 0x20,
|
||||
0x6d, 0x60, 0x77, 0x7a, 0x59, 0x54, 0x43, 0x4e, 0x05, 0x08, 0x1f, 0x12, 0x31, 0x3c, 0x2b, 0x26,
|
||||
0xbd, 0xb0, 0xa7, 0xaa, 0x89, 0x84, 0x93, 0x9e, 0xd5, 0xd8, 0xcf, 0xc2, 0xe1, 0xec, 0xfb, 0xf6,
|
||||
0xd6, 0xdb, 0xcc, 0xc1, 0xe2, 0xef, 0xf8, 0xf5, 0xbe, 0xb3, 0xa4, 0xa9, 0x8a, 0x87, 0x90, 0x9d,
|
||||
0x06, 0x0b, 0x1c, 0x11, 0x32, 0x3f, 0x28, 0x25, 0x6e, 0x63, 0x74, 0x79, 0x5a, 0x57, 0x40, 0x4d,
|
||||
0xda, 0xd7, 0xc0, 0xcd, 0xee, 0xe3, 0xf4, 0xf9, 0xb2, 0xbf, 0xa8, 0xa5, 0x86, 0x8b, 0x9c, 0x91,
|
||||
0x0a, 0x07, 0x10, 0x1d, 0x3e, 0x33, 0x24, 0x29, 0x62, 0x6f, 0x78, 0x75, 0x56, 0x5b, 0x4c, 0x41,
|
||||
0x61, 0x6c, 0x7b, 0x76, 0x55, 0x58, 0x4f, 0x42, 0x09, 0x04, 0x13, 0x1e, 0x3d, 0x30, 0x27, 0x2a,
|
||||
0xb1, 0xbc, 0xab, 0xa6, 0x85, 0x88, 0x9f, 0x92, 0xd9, 0xd4, 0xc3, 0xce, 0xed, 0xe0, 0xf7, 0xfa,
|
||||
0xb7, 0xba, 0xad, 0xa0, 0x83, 0x8e, 0x99, 0x94, 0xdf, 0xd2, 0xc5, 0xc8, 0xeb, 0xe6, 0xf1, 0xfc,
|
||||
0x67, 0x6a, 0x7d, 0x70, 0x53, 0x5e, 0x49, 0x44, 0x0f, 0x02, 0x15, 0x18, 0x3b, 0x36, 0x21, 0x2c,
|
||||
0x0c, 0x01, 0x16, 0x1b, 0x38, 0x35, 0x22, 0x2f, 0x64, 0x69, 0x7e, 0x73, 0x50, 0x5d, 0x4a, 0x47,
|
||||
0xdc, 0xd1, 0xc6, 0xcb, 0xe8, 0xe5, 0xf2, 0xff, 0xb4, 0xb9, 0xae, 0xa3, 0x80, 0x8d, 0x9a, 0x97];
|
||||
private static const _XtimeE:Array = [
|
||||
0x00, 0x0e, 0x1c, 0x12, 0x38, 0x36, 0x24, 0x2a, 0x70, 0x7e, 0x6c, 0x62, 0x48, 0x46, 0x54, 0x5a,
|
||||
0xe0, 0xee, 0xfc, 0xf2, 0xd8, 0xd6, 0xc4, 0xca, 0x90, 0x9e, 0x8c, 0x82, 0xa8, 0xa6, 0xb4, 0xba,
|
||||
0xdb, 0xd5, 0xc7, 0xc9, 0xe3, 0xed, 0xff, 0xf1, 0xab, 0xa5, 0xb7, 0xb9, 0x93, 0x9d, 0x8f, 0x81,
|
||||
0x3b, 0x35, 0x27, 0x29, 0x03, 0x0d, 0x1f, 0x11, 0x4b, 0x45, 0x57, 0x59, 0x73, 0x7d, 0x6f, 0x61,
|
||||
0xad, 0xa3, 0xb1, 0xbf, 0x95, 0x9b, 0x89, 0x87, 0xdd, 0xd3, 0xc1, 0xcf, 0xe5, 0xeb, 0xf9, 0xf7,
|
||||
0x4d, 0x43, 0x51, 0x5f, 0x75, 0x7b, 0x69, 0x67, 0x3d, 0x33, 0x21, 0x2f, 0x05, 0x0b, 0x19, 0x17,
|
||||
0x76, 0x78, 0x6a, 0x64, 0x4e, 0x40, 0x52, 0x5c, 0x06, 0x08, 0x1a, 0x14, 0x3e, 0x30, 0x22, 0x2c,
|
||||
0x96, 0x98, 0x8a, 0x84, 0xae, 0xa0, 0xb2, 0xbc, 0xe6, 0xe8, 0xfa, 0xf4, 0xde, 0xd0, 0xc2, 0xcc,
|
||||
0x41, 0x4f, 0x5d, 0x53, 0x79, 0x77, 0x65, 0x6b, 0x31, 0x3f, 0x2d, 0x23, 0x09, 0x07, 0x15, 0x1b,
|
||||
0xa1, 0xaf, 0xbd, 0xb3, 0x99, 0x97, 0x85, 0x8b, 0xd1, 0xdf, 0xcd, 0xc3, 0xe9, 0xe7, 0xf5, 0xfb,
|
||||
0x9a, 0x94, 0x86, 0x88, 0xa2, 0xac, 0xbe, 0xb0, 0xea, 0xe4, 0xf6, 0xf8, 0xd2, 0xdc, 0xce, 0xc0,
|
||||
0x7a, 0x74, 0x66, 0x68, 0x42, 0x4c, 0x5e, 0x50, 0x0a, 0x04, 0x16, 0x18, 0x32, 0x3c, 0x2e, 0x20,
|
||||
0xec, 0xe2, 0xf0, 0xfe, 0xd4, 0xda, 0xc8, 0xc6, 0x9c, 0x92, 0x80, 0x8e, 0xa4, 0xaa, 0xb8, 0xb6,
|
||||
0x0c, 0x02, 0x10, 0x1e, 0x34, 0x3a, 0x28, 0x26, 0x7c, 0x72, 0x60, 0x6e, 0x44, 0x4a, 0x58, 0x56,
|
||||
0x37, 0x39, 0x2b, 0x25, 0x0f, 0x01, 0x13, 0x1d, 0x47, 0x49, 0x5b, 0x55, 0x7f, 0x71, 0x63, 0x6d,
|
||||
0xd7, 0xd9, 0xcb, 0xc5, 0xef, 0xe1, 0xf3, 0xfd, 0xa7, 0xa9, 0xbb, 0xb5, 0x9f, 0x91, 0x83, 0x8d];
|
||||
static private var _Rcon:Array = [
|
||||
0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36];
|
||||
static private var Sbox:ByteArray;
|
||||
static private var InvSbox:ByteArray;
|
||||
static private var Xtime2Sbox:ByteArray
|
||||
static private var Xtime3Sbox:ByteArray
|
||||
static private var Xtime2:ByteArray;
|
||||
static private var Xtime9:ByteArray;
|
||||
static private var XtimeB:ByteArray;
|
||||
static private var XtimeD:ByteArray;
|
||||
static private var XtimeE:ByteArray;
|
||||
static private var Rcon:ByteArray;
|
||||
// static initializer
|
||||
{
|
||||
static private var i:uint;
|
||||
Sbox = new ByteArray;
|
||||
InvSbox = new ByteArray;
|
||||
Xtime2Sbox = new ByteArray;
|
||||
Xtime3Sbox = new ByteArray;
|
||||
Xtime2 = new ByteArray;
|
||||
Xtime9 = new ByteArray;
|
||||
XtimeB = new ByteArray;
|
||||
XtimeD = new ByteArray;
|
||||
XtimeE = new ByteArray;
|
||||
for (i=0;i<256;i++) {
|
||||
Sbox[i] = _Sbox[i];
|
||||
InvSbox[i] = _InvSbox[i];
|
||||
Xtime2Sbox[i] = _Xtime2Sbox[i];
|
||||
Xtime3Sbox[i] = _Xtime3Sbox[i];
|
||||
Xtime2[i] = _Xtime2[i];
|
||||
Xtime9[i] = _Xtime9[i];
|
||||
XtimeB[i] = _XtimeB[i];
|
||||
XtimeD[i] = _XtimeD[i];
|
||||
XtimeE[i] = _XtimeE[i];
|
||||
}
|
||||
Rcon = new ByteArray;
|
||||
for (i=0;i<_Rcon.length;i++) {
|
||||
Rcon[i] = _Rcon[i];
|
||||
}
|
||||
}
|
||||
|
||||
private var key:ByteArray;
|
||||
private var keyLength:uint;
|
||||
private var Nr:uint;
|
||||
private var state:ByteArray;
|
||||
private var tmp:ByteArray;
|
||||
|
||||
public function AESKey(key:ByteArray) {
|
||||
tmp = new ByteArray;
|
||||
state = new ByteArray;
|
||||
keyLength = key.length;
|
||||
this.key = new ByteArray;
|
||||
this.key.writeBytes(key);
|
||||
expandKey();
|
||||
}
|
||||
|
||||
// produce Nb bytes for each round
|
||||
private function expandKey():void {
|
||||
var tmp0:uint, tmp1:uint, tmp2:uint, tmp3:uint, tmp4:uint;
|
||||
var idx:uint;
|
||||
var Nk:uint = key.length/4;
|
||||
Nr = Nk+6;
|
||||
|
||||
for( idx = Nk; idx < Nb * (Nr + 1); idx++ ) {
|
||||
tmp0 = key[4*idx - 4];
|
||||
tmp1 = key[4*idx - 3];
|
||||
tmp2 = key[4*idx - 2];
|
||||
tmp3 = key[4*idx - 1];
|
||||
if( !(idx % Nk) ) {
|
||||
tmp4 = tmp3;
|
||||
tmp3 = Sbox[tmp0];
|
||||
tmp0 = Sbox[tmp1] ^ Rcon[idx/Nk];
|
||||
tmp1 = Sbox[tmp2];
|
||||
tmp2 = Sbox[tmp4];
|
||||
} else if( Nk > 6 && idx % Nk == 4 ) {
|
||||
tmp0 = Sbox[tmp0];
|
||||
tmp1 = Sbox[tmp1];
|
||||
tmp2 = Sbox[tmp2];
|
||||
tmp3 = Sbox[tmp3];
|
||||
}
|
||||
|
||||
key[4*idx+0] = key[4*idx - 4*Nk + 0] ^ tmp0;
|
||||
key[4*idx+1] = key[4*idx - 4*Nk + 1] ^ tmp1;
|
||||
key[4*idx+2] = key[4*idx - 4*Nk + 2] ^ tmp2;
|
||||
key[4*idx+3] = key[4*idx - 4*Nk + 3] ^ tmp3;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
public function getBlockSize():uint
|
||||
{
|
||||
return 16;
|
||||
}
|
||||
|
||||
// encrypt one 128 bit block
|
||||
public function encrypt(block:ByteArray, index:uint=0):void
|
||||
{
|
||||
var round:uint;
|
||||
state.position=0;
|
||||
state.writeBytes(block, index, Nb*4);
|
||||
|
||||
addRoundKey(key, 0);
|
||||
for ( round = 1; round < Nr + 1; round++ ) {
|
||||
if (round < Nr) {
|
||||
mixSubColumns();
|
||||
} else {
|
||||
shiftRows();
|
||||
}
|
||||
addRoundKey(key, round * Nb * 4);
|
||||
}
|
||||
|
||||
block.position=index;
|
||||
block.writeBytes(state);
|
||||
}
|
||||
|
||||
public function decrypt(block:ByteArray, index:uint=0):void
|
||||
{
|
||||
var round:uint;
|
||||
state.position=0;
|
||||
state.writeBytes(block, index, Nb*4);
|
||||
|
||||
addRoundKey(key, Nr*Nb*4);
|
||||
invShiftRows();
|
||||
for( round = Nr; round--; )
|
||||
{
|
||||
addRoundKey( key, round*Nb*4);
|
||||
if (round) {
|
||||
invMixSubColumns();
|
||||
}
|
||||
}
|
||||
|
||||
block.position=index;
|
||||
block.writeBytes(state);
|
||||
}
|
||||
|
||||
public function dispose():void {
|
||||
var i:uint;
|
||||
var r:Random = new Random;
|
||||
for (i=0;i<key.length;i++) {
|
||||
key[i] = r.nextByte();
|
||||
}
|
||||
Nr = r.nextByte();
|
||||
for (i=0;i<state.length;i++) {
|
||||
state[i] = r.nextByte();
|
||||
}
|
||||
for (i=0;i<tmp.length;i++) {
|
||||
tmp[i] = r.nextByte();
|
||||
}
|
||||
key.length=0;
|
||||
keyLength=0;
|
||||
state.length=0;
|
||||
tmp.length=0;
|
||||
key = null;
|
||||
state = null;
|
||||
tmp = null;
|
||||
Nr = 0;
|
||||
Memory.gc();
|
||||
}
|
||||
|
||||
// exchanges columns in each of 4 rows
|
||||
// row0 - unchanged, row1- shifted left 1,
|
||||
// row2 - shifted left 2 and row3 - shifted left 3
|
||||
protected function shiftRows():void
|
||||
{
|
||||
var tmp:uint;
|
||||
|
||||
// just substitute row 0
|
||||
state[0] = Sbox[state[0]]; state[4] = Sbox[state[4]];
|
||||
state[8] = Sbox[state[8]]; state[12] = Sbox[state[12]];
|
||||
|
||||
// rotate row 1
|
||||
tmp = Sbox[state[1]]; state[1] = Sbox[state[5]];
|
||||
state[5] = Sbox[state[9]]; state[9] = Sbox[state[13]]; state[13] = tmp;
|
||||
|
||||
// rotate row 2
|
||||
tmp = Sbox[state[2]]; state[2] = Sbox[state[10]]; state[10] = tmp;
|
||||
tmp = Sbox[state[6]]; state[6] = Sbox[state[14]]; state[14] = tmp;
|
||||
|
||||
// rotate row 3
|
||||
tmp = Sbox[state[15]]; state[15] = Sbox[state[11]];
|
||||
state[11] = Sbox[state[7]]; state[7] = Sbox[state[3]]; state[3] = tmp;
|
||||
}
|
||||
|
||||
// restores columns in each of 4 rows
|
||||
// row0 - unchanged, row1- shifted right 1,
|
||||
// row2 - shifted right 2 and row3 - shifted right 3
|
||||
protected function invShiftRows ():void
|
||||
{
|
||||
var tmp:uint;
|
||||
|
||||
// restore row 0
|
||||
state[0] = InvSbox[state[0]]; state[4] = InvSbox[state[4]];
|
||||
state[8] = InvSbox[state[8]]; state[12] = InvSbox[state[12]];
|
||||
|
||||
// restore row 1
|
||||
tmp = InvSbox[state[13]]; state[13] = InvSbox[state[9]];
|
||||
state[9] = InvSbox[state[5]]; state[5] = InvSbox[state[1]]; state[1] = tmp;
|
||||
|
||||
// restore row 2
|
||||
tmp = InvSbox[state[2]]; state[2] = InvSbox[state[10]]; state[10] = tmp;
|
||||
tmp = InvSbox[state[6]]; state[6] = InvSbox[state[14]]; state[14] = tmp;
|
||||
|
||||
// restore row 3
|
||||
tmp = InvSbox[state[3]]; state[3] = InvSbox[state[7]];
|
||||
state[7] = InvSbox[state[11]]; state[11] = InvSbox[state[15]]; state[15] = tmp;
|
||||
}
|
||||
|
||||
// recombine and mix each row in a column
|
||||
protected function mixSubColumns ():void
|
||||
{
|
||||
tmp.length=0;
|
||||
|
||||
// mixing column 0
|
||||
tmp[0] = Xtime2Sbox[state[0]] ^ Xtime3Sbox[state[5]] ^ Sbox[state[10]] ^ Sbox[state[15]];
|
||||
tmp[1] = Sbox[state[0]] ^ Xtime2Sbox[state[5]] ^ Xtime3Sbox[state[10]] ^ Sbox[state[15]];
|
||||
tmp[2] = Sbox[state[0]] ^ Sbox[state[5]] ^ Xtime2Sbox[state[10]] ^ Xtime3Sbox[state[15]];
|
||||
tmp[3] = Xtime3Sbox[state[0]] ^ Sbox[state[5]] ^ Sbox[state[10]] ^ Xtime2Sbox[state[15]];
|
||||
|
||||
// mixing column 1
|
||||
tmp[4] = Xtime2Sbox[state[4]] ^ Xtime3Sbox[state[9]] ^ Sbox[state[14]] ^ Sbox[state[3]];
|
||||
tmp[5] = Sbox[state[4]] ^ Xtime2Sbox[state[9]] ^ Xtime3Sbox[state[14]] ^ Sbox[state[3]];
|
||||
tmp[6] = Sbox[state[4]] ^ Sbox[state[9]] ^ Xtime2Sbox[state[14]] ^ Xtime3Sbox[state[3]];
|
||||
tmp[7] = Xtime3Sbox[state[4]] ^ Sbox[state[9]] ^ Sbox[state[14]] ^ Xtime2Sbox[state[3]];
|
||||
|
||||
// mixing column 2
|
||||
tmp[8] = Xtime2Sbox[state[8]] ^ Xtime3Sbox[state[13]] ^ Sbox[state[2]] ^ Sbox[state[7]];
|
||||
tmp[9] = Sbox[state[8]] ^ Xtime2Sbox[state[13]] ^ Xtime3Sbox[state[2]] ^ Sbox[state[7]];
|
||||
tmp[10] = Sbox[state[8]] ^ Sbox[state[13]] ^ Xtime2Sbox[state[2]] ^ Xtime3Sbox[state[7]];
|
||||
tmp[11] = Xtime3Sbox[state[8]] ^ Sbox[state[13]] ^ Sbox[state[2]] ^ Xtime2Sbox[state[7]];
|
||||
|
||||
// mixing column 3
|
||||
tmp[12] = Xtime2Sbox[state[12]] ^ Xtime3Sbox[state[1]] ^ Sbox[state[6]] ^ Sbox[state[11]];
|
||||
tmp[13] = Sbox[state[12]] ^ Xtime2Sbox[state[1]] ^ Xtime3Sbox[state[6]] ^ Sbox[state[11]];
|
||||
tmp[14] = Sbox[state[12]] ^ Sbox[state[1]] ^ Xtime2Sbox[state[6]] ^ Xtime3Sbox[state[11]];
|
||||
tmp[15] = Xtime3Sbox[state[12]] ^ Sbox[state[1]] ^ Sbox[state[6]] ^ Xtime2Sbox[state[11]];
|
||||
|
||||
state.position=0;
|
||||
state.writeBytes(tmp, 0, Nb*4);
|
||||
}
|
||||
|
||||
// restore and un-mix each row in a column
|
||||
protected function invMixSubColumns ():void
|
||||
{
|
||||
tmp.length=0;
|
||||
var i:uint;
|
||||
|
||||
// restore column 0
|
||||
tmp[0] = XtimeE[state[0]] ^ XtimeB[state[1]] ^ XtimeD[state[2]] ^ Xtime9[state[3]];
|
||||
tmp[5] = Xtime9[state[0]] ^ XtimeE[state[1]] ^ XtimeB[state[2]] ^ XtimeD[state[3]];
|
||||
tmp[10] = XtimeD[state[0]] ^ Xtime9[state[1]] ^ XtimeE[state[2]] ^ XtimeB[state[3]];
|
||||
tmp[15] = XtimeB[state[0]] ^ XtimeD[state[1]] ^ Xtime9[state[2]] ^ XtimeE[state[3]];
|
||||
|
||||
// restore column 1
|
||||
tmp[4] = XtimeE[state[4]] ^ XtimeB[state[5]] ^ XtimeD[state[6]] ^ Xtime9[state[7]];
|
||||
tmp[9] = Xtime9[state[4]] ^ XtimeE[state[5]] ^ XtimeB[state[6]] ^ XtimeD[state[7]];
|
||||
tmp[14] = XtimeD[state[4]] ^ Xtime9[state[5]] ^ XtimeE[state[6]] ^ XtimeB[state[7]];
|
||||
tmp[3] = XtimeB[state[4]] ^ XtimeD[state[5]] ^ Xtime9[state[6]] ^ XtimeE[state[7]];
|
||||
|
||||
// restore column 2
|
||||
tmp[8] = XtimeE[state[8]] ^ XtimeB[state[9]] ^ XtimeD[state[10]] ^ Xtime9[state[11]];
|
||||
tmp[13] = Xtime9[state[8]] ^ XtimeE[state[9]] ^ XtimeB[state[10]] ^ XtimeD[state[11]];
|
||||
tmp[2] = XtimeD[state[8]] ^ Xtime9[state[9]] ^ XtimeE[state[10]] ^ XtimeB[state[11]];
|
||||
tmp[7] = XtimeB[state[8]] ^ XtimeD[state[9]] ^ Xtime9[state[10]] ^ XtimeE[state[11]];
|
||||
|
||||
// restore column 3
|
||||
tmp[12] = XtimeE[state[12]] ^ XtimeB[state[13]] ^ XtimeD[state[14]] ^ Xtime9[state[15]];
|
||||
tmp[1] = Xtime9[state[12]] ^ XtimeE[state[13]] ^ XtimeB[state[14]] ^ XtimeD[state[15]];
|
||||
tmp[6] = XtimeD[state[12]] ^ Xtime9[state[13]] ^ XtimeE[state[14]] ^ XtimeB[state[15]];
|
||||
tmp[11] = XtimeB[state[12]] ^ XtimeD[state[13]] ^ Xtime9[state[14]] ^ XtimeE[state[15]];
|
||||
|
||||
for( i=0; i < 4 * Nb; i++ )
|
||||
state[i] = InvSbox[tmp[i]];
|
||||
}
|
||||
|
||||
// encrypt/decrypt columns of the key
|
||||
protected function addRoundKey (key:ByteArray, offset:uint):void
|
||||
{
|
||||
var idx:uint;
|
||||
|
||||
for( idx = 0; idx < 16; idx++ )
|
||||
state[idx] ^= key[idx+offset];
|
||||
}
|
||||
|
||||
public function toString():String {
|
||||
return "aes"+(8*keyLength);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,375 @@
|
||||
/**
|
||||
* BlowFishKey
|
||||
*
|
||||
* An Actionscript 3 implementation of the BlowFish encryption algorithm,
|
||||
* as documented at http://www.schneier.com/blowfish.html
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* Derived from:
|
||||
* The Bouncy Castle Crypto package,
|
||||
* Copyright (c) 2000-2004 The Legion Of The Bouncy Castle
|
||||
* (http://www.bouncycastle.org)
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
import com.hurlant.util.Memory;
|
||||
|
||||
public class BlowFishKey implements ISymmetricKey
|
||||
{
|
||||
|
||||
private static const KP:Array = [ 0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344, 0xA4093822, 0x299F31D0,
|
||||
0x082EFA98, 0xEC4E6C89, 0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C, 0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5,
|
||||
0xB5470917, 0x9216D5D9, 0x8979FB1B ];
|
||||
|
||||
private static const KS0:Array = [ 0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7, 0xB8E1AFED, 0x6A267E96, 0xBA7C9045, 0xF12C7F99, 0x24A19947,
|
||||
0xB3916CF7, 0x0801F2E2, 0x858EFC16, 0x636920D8, 0x71574E69, 0xA458FEA3, 0xF4933D7E, 0x0D95748F, 0x728EB658,
|
||||
0x718BCD58, 0x82154AEE, 0x7B54A41D, 0xC25A59B5, 0x9C30D539, 0x2AF26013, 0xC5D1B023, 0x286085F0, 0xCA417918,
|
||||
0xB8DB38EF, 0x8E79DCB0, 0x603A180E, 0x6C9E0E8B, 0xB01E8A3E, 0xD71577C1, 0xBD314B27, 0x78AF2FDA, 0x55605C60,
|
||||
0xE65525F3, 0xAA55AB94, 0x57489862, 0x63E81440, 0x55CA396A, 0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE, 0xA15486AF,
|
||||
0x7C72E993, 0xB3EE1411, 0x636FBC2A, 0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E, 0xAFD6BA33, 0x6C24CF5C,
|
||||
0x7A325381, 0x28958677, 0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B, 0x66282193, 0x61D809CC, 0xFB21A991, 0x487CAC60,
|
||||
0x5DEC8032, 0xEF845D5D, 0xE98575B1, 0xDC262302, 0xEB651B88, 0x23893E81, 0xD396ACC5, 0x0F6D6FF3, 0x83F44239,
|
||||
0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E, 0x21C66842, 0xF6E96C9A, 0x670C9C61, 0xABD388F0, 0x6A51A0D2,
|
||||
0xD8542F68, 0x960FA728, 0xAB5133A3, 0x6EEF0B6C, 0x137A3BE4, 0xBA3BF050, 0x7EFB2A98, 0xA1F1651D, 0x39AF0176,
|
||||
0x66CA593E, 0x82430E88, 0x8CEE8619, 0x456F9FB4, 0x7D84A5C3, 0x3B8B5EBE, 0xE06F75D8, 0x85C12073, 0x401A449F,
|
||||
0x56C16AA6, 0x4ED3AA62, 0x363F7706, 0x1BFEDF72, 0x429B023D, 0x37D0D724, 0xD00A1248, 0xDB0FEAD3, 0x49F1C09B,
|
||||
0x075372C9, 0x80991B7B, 0x25D479D8, 0xF6E8DEF7, 0xE3FE501A, 0xB6794C3B, 0x976CE0BD, 0x04C006BA, 0xC1A94FB6,
|
||||
0x409F60C4, 0x5E5C9EC2, 0x196A2463, 0x68FB6FAF, 0x3E6C53B5, 0x1339B2EB, 0x3B52EC6F, 0x6DFC511F, 0x9B30952C,
|
||||
0xCC814544, 0xAF5EBD09, 0xBEE3D004, 0xDE334AFD, 0x660F2807, 0x192E4BB3, 0xC0CBA857, 0x45C8740F, 0xD20B5F39,
|
||||
0xB9D3FBDB, 0x5579C0BD, 0x1A60320A, 0xD6A100C6, 0x402C7279, 0x679F25FE, 0xFB1FA3CC, 0x8EA5E9F8, 0xDB3222F8,
|
||||
0x3C7516DF, 0xFD616B15, 0x2F501EC8, 0xAD0552AB, 0x323DB5FA, 0xFD238760, 0x53317B48, 0x3E00DF82, 0x9E5C57BB,
|
||||
0xCA6F8CA0, 0x1A87562E, 0xDF1769DB, 0xD542A8F6, 0x287EFFC3, 0xAC6732C6, 0x8C4F5573, 0x695B27B0, 0xBBCA58C8,
|
||||
0xE1FFA35D, 0xB8F011A0, 0x10FA3D98, 0xFD2183B8, 0x4AFCB56C, 0x2DD1D35B, 0x9A53E479, 0xB6F84565, 0xD28E49BC,
|
||||
0x4BFB9790, 0xE1DDF2DA, 0xA4CB7E33, 0x62FB1341, 0xCEE4C6E8, 0xEF20CADA, 0x36774C01, 0xD07E9EFE, 0x2BF11FB4,
|
||||
0x95DBDA4D, 0xAE909198, 0xEAAD8E71, 0x6B93D5A0, 0xD08ED1D0, 0xAFC725E0, 0x8E3C5B2F, 0x8E7594B7, 0x8FF6E2FB,
|
||||
0xF2122B64, 0x8888B812, 0x900DF01C, 0x4FAD5EA0, 0x688FC31C, 0xD1CFF191, 0xB3A8C1AD, 0x2F2F2218, 0xBE0E1777,
|
||||
0xEA752DFE, 0x8B021FA1, 0xE5A0CC0F, 0xB56F74E8, 0x18ACF3D6, 0xCE89E299, 0xB4A84FE0, 0xFD13E0B7, 0x7CC43B81,
|
||||
0xD2ADA8D9, 0x165FA266, 0x80957705, 0x93CC7314, 0x211A1477, 0xE6AD2065, 0x77B5FA86, 0xC75442F5, 0xFB9D35CF,
|
||||
0xEBCDAF0C, 0x7B3E89A0, 0xD6411BD3, 0xAE1E7E49, 0x00250E2D, 0x2071B35E, 0x226800BB, 0x57B8E0AF, 0x2464369B,
|
||||
0xF009B91E, 0x5563911D, 0x59DFA6AA, 0x78C14389, 0xD95A537F, 0x207D5BA2, 0x02E5B9C5, 0x83260376, 0x6295CFA9,
|
||||
0x11C81968, 0x4E734A41, 0xB3472DCA, 0x7B14A94A, 0x1B510052, 0x9A532915, 0xD60F573F, 0xBC9BC6E4, 0x2B60A476,
|
||||
0x81E67400, 0x08BA6FB5, 0x571BE91F, 0xF296EC6B, 0x2A0DD915, 0xB6636521, 0xE7B9F9B6, 0xFF34052E, 0xC5855664,
|
||||
0x53B02D5D, 0xA99F8FA1, 0x08BA4799, 0x6E85076A ];
|
||||
|
||||
private static const KS1:Array = [ 0x4B7A70E9, 0xB5B32944, 0xDB75092E, 0xC4192623, 0xAD6EA6B0, 0x49A7DF7D, 0x9CEE60B8, 0x8FEDB266, 0xECAA8C71,
|
||||
0x699A17FF, 0x5664526C, 0xC2B19EE1, 0x193602A5, 0x75094C29, 0xA0591340, 0xE4183A3E, 0x3F54989A, 0x5B429D65,
|
||||
0x6B8FE4D6, 0x99F73FD6, 0xA1D29C07, 0xEFE830F5, 0x4D2D38E6, 0xF0255DC1, 0x4CDD2086, 0x8470EB26, 0x6382E9C6,
|
||||
0x021ECC5E, 0x09686B3F, 0x3EBAEFC9, 0x3C971814, 0x6B6A70A1, 0x687F3584, 0x52A0E286, 0xB79C5305, 0xAA500737,
|
||||
0x3E07841C, 0x7FDEAE5C, 0x8E7D44EC, 0x5716F2B8, 0xB03ADA37, 0xF0500C0D, 0xF01C1F04, 0x0200B3FF, 0xAE0CF51A,
|
||||
0x3CB574B2, 0x25837A58, 0xDC0921BD, 0xD19113F9, 0x7CA92FF6, 0x94324773, 0x22F54701, 0x3AE5E581, 0x37C2DADC,
|
||||
0xC8B57634, 0x9AF3DDA7, 0xA9446146, 0x0FD0030E, 0xECC8C73E, 0xA4751E41, 0xE238CD99, 0x3BEA0E2F, 0x3280BBA1,
|
||||
0x183EB331, 0x4E548B38, 0x4F6DB908, 0x6F420D03, 0xF60A04BF, 0x2CB81290, 0x24977C79, 0x5679B072, 0xBCAF89AF,
|
||||
0xDE9A771F, 0xD9930810, 0xB38BAE12, 0xDCCF3F2E, 0x5512721F, 0x2E6B7124, 0x501ADDE6, 0x9F84CD87, 0x7A584718,
|
||||
0x7408DA17, 0xBC9F9ABC, 0xE94B7D8C, 0xEC7AEC3A, 0xDB851DFA, 0x63094366, 0xC464C3D2, 0xEF1C1847, 0x3215D908,
|
||||
0xDD433B37, 0x24C2BA16, 0x12A14D43, 0x2A65C451, 0x50940002, 0x133AE4DD, 0x71DFF89E, 0x10314E55, 0x81AC77D6,
|
||||
0x5F11199B, 0x043556F1, 0xD7A3C76B, 0x3C11183B, 0x5924A509, 0xF28FE6ED, 0x97F1FBFA, 0x9EBABF2C, 0x1E153C6E,
|
||||
0x86E34570, 0xEAE96FB1, 0x860E5E0A, 0x5A3E2AB3, 0x771FE71C, 0x4E3D06FA, 0x2965DCB9, 0x99E71D0F, 0x803E89D6,
|
||||
0x5266C825, 0x2E4CC978, 0x9C10B36A, 0xC6150EBA, 0x94E2EA78, 0xA5FC3C53, 0x1E0A2DF4, 0xF2F74EA7, 0x361D2B3D,
|
||||
0x1939260F, 0x19C27960, 0x5223A708, 0xF71312B6, 0xEBADFE6E, 0xEAC31F66, 0xE3BC4595, 0xA67BC883, 0xB17F37D1,
|
||||
0x018CFF28, 0xC332DDEF, 0xBE6C5AA5, 0x65582185, 0x68AB9802, 0xEECEA50F, 0xDB2F953B, 0x2AEF7DAD, 0x5B6E2F84,
|
||||
0x1521B628, 0x29076170, 0xECDD4775, 0x619F1510, 0x13CCA830, 0xEB61BD96, 0x0334FE1E, 0xAA0363CF, 0xB5735C90,
|
||||
0x4C70A239, 0xD59E9E0B, 0xCBAADE14, 0xEECC86BC, 0x60622CA7, 0x9CAB5CAB, 0xB2F3846E, 0x648B1EAF, 0x19BDF0CA,
|
||||
0xA02369B9, 0x655ABB50, 0x40685A32, 0x3C2AB4B3, 0x319EE9D5, 0xC021B8F7, 0x9B540B19, 0x875FA099, 0x95F7997E,
|
||||
0x623D7DA8, 0xF837889A, 0x97E32D77, 0x11ED935F, 0x16681281, 0x0E358829, 0xC7E61FD6, 0x96DEDFA1, 0x7858BA99,
|
||||
0x57F584A5, 0x1B227263, 0x9B83C3FF, 0x1AC24696, 0xCDB30AEB, 0x532E3054, 0x8FD948E4, 0x6DBC3128, 0x58EBF2EF,
|
||||
0x34C6FFEA, 0xFE28ED61, 0xEE7C3C73, 0x5D4A14D9, 0xE864B7E3, 0x42105D14, 0x203E13E0, 0x45EEE2B6, 0xA3AAABEA,
|
||||
0xDB6C4F15, 0xFACB4FD0, 0xC742F442, 0xEF6ABBB5, 0x654F3B1D, 0x41CD2105, 0xD81E799E, 0x86854DC7, 0xE44B476A,
|
||||
0x3D816250, 0xCF62A1F2, 0x5B8D2646, 0xFC8883A0, 0xC1C7B6A3, 0x7F1524C3, 0x69CB7492, 0x47848A0B, 0x5692B285,
|
||||
0x095BBF00, 0xAD19489D, 0x1462B174, 0x23820E00, 0x58428D2A, 0x0C55F5EA, 0x1DADF43E, 0x233F7061, 0x3372F092,
|
||||
0x8D937E41, 0xD65FECF1, 0x6C223BDB, 0x7CDE3759, 0xCBEE7460, 0x4085F2A7, 0xCE77326E, 0xA6078084, 0x19F8509E,
|
||||
0xE8EFD855, 0x61D99735, 0xA969A7AA, 0xC50C06C2, 0x5A04ABFC, 0x800BCADC, 0x9E447A2E, 0xC3453484, 0xFDD56705,
|
||||
0x0E1E9EC9, 0xDB73DBD3, 0x105588CD, 0x675FDA79, 0xE3674340, 0xC5C43465, 0x713E38D8, 0x3D28F89E, 0xF16DFF20,
|
||||
0x153E21E7, 0x8FB03D4A, 0xE6E39F2B, 0xDB83ADF7 ];
|
||||
|
||||
private static const KS2:Array = [ 0xE93D5A68, 0x948140F7, 0xF64C261C, 0x94692934, 0x411520F7, 0x7602D4F7, 0xBCF46B2E, 0xD4A20068, 0xD4082471,
|
||||
0x3320F46A, 0x43B7D4B7, 0x500061AF, 0x1E39F62E, 0x97244546, 0x14214F74, 0xBF8B8840, 0x4D95FC1D, 0x96B591AF,
|
||||
0x70F4DDD3, 0x66A02F45, 0xBFBC09EC, 0x03BD9785, 0x7FAC6DD0, 0x31CB8504, 0x96EB27B3, 0x55FD3941, 0xDA2547E6,
|
||||
0xABCA0A9A, 0x28507825, 0x530429F4, 0x0A2C86DA, 0xE9B66DFB, 0x68DC1462, 0xD7486900, 0x680EC0A4, 0x27A18DEE,
|
||||
0x4F3FFEA2, 0xE887AD8C, 0xB58CE006, 0x7AF4D6B6, 0xAACE1E7C, 0xD3375FEC, 0xCE78A399, 0x406B2A42, 0x20FE9E35,
|
||||
0xD9F385B9, 0xEE39D7AB, 0x3B124E8B, 0x1DC9FAF7, 0x4B6D1856, 0x26A36631, 0xEAE397B2, 0x3A6EFA74, 0xDD5B4332,
|
||||
0x6841E7F7, 0xCA7820FB, 0xFB0AF54E, 0xD8FEB397, 0x454056AC, 0xBA489527, 0x55533A3A, 0x20838D87, 0xFE6BA9B7,
|
||||
0xD096954B, 0x55A867BC, 0xA1159A58, 0xCCA92963, 0x99E1DB33, 0xA62A4A56, 0x3F3125F9, 0x5EF47E1C, 0x9029317C,
|
||||
0xFDF8E802, 0x04272F70, 0x80BB155C, 0x05282CE3, 0x95C11548, 0xE4C66D22, 0x48C1133F, 0xC70F86DC, 0x07F9C9EE,
|
||||
0x41041F0F, 0x404779A4, 0x5D886E17, 0x325F51EB, 0xD59BC0D1, 0xF2BCC18F, 0x41113564, 0x257B7834, 0x602A9C60,
|
||||
0xDFF8E8A3, 0x1F636C1B, 0x0E12B4C2, 0x02E1329E, 0xAF664FD1, 0xCAD18115, 0x6B2395E0, 0x333E92E1, 0x3B240B62,
|
||||
0xEEBEB922, 0x85B2A20E, 0xE6BA0D99, 0xDE720C8C, 0x2DA2F728, 0xD0127845, 0x95B794FD, 0x647D0862, 0xE7CCF5F0,
|
||||
0x5449A36F, 0x877D48FA, 0xC39DFD27, 0xF33E8D1E, 0x0A476341, 0x992EFF74, 0x3A6F6EAB, 0xF4F8FD37, 0xA812DC60,
|
||||
0xA1EBDDF8, 0x991BE14C, 0xDB6E6B0D, 0xC67B5510, 0x6D672C37, 0x2765D43B, 0xDCD0E804, 0xF1290DC7, 0xCC00FFA3,
|
||||
0xB5390F92, 0x690FED0B, 0x667B9FFB, 0xCEDB7D9C, 0xA091CF0B, 0xD9155EA3, 0xBB132F88, 0x515BAD24, 0x7B9479BF,
|
||||
0x763BD6EB, 0x37392EB3, 0xCC115979, 0x8026E297, 0xF42E312D, 0x6842ADA7, 0xC66A2B3B, 0x12754CCC, 0x782EF11C,
|
||||
0x6A124237, 0xB79251E7, 0x06A1BBE6, 0x4BFB6350, 0x1A6B1018, 0x11CAEDFA, 0x3D25BDD8, 0xE2E1C3C9, 0x44421659,
|
||||
0x0A121386, 0xD90CEC6E, 0xD5ABEA2A, 0x64AF674E, 0xDA86A85F, 0xBEBFE988, 0x64E4C3FE, 0x9DBC8057, 0xF0F7C086,
|
||||
0x60787BF8, 0x6003604D, 0xD1FD8346, 0xF6381FB0, 0x7745AE04, 0xD736FCCC, 0x83426B33, 0xF01EAB71, 0xB0804187,
|
||||
0x3C005E5F, 0x77A057BE, 0xBDE8AE24, 0x55464299, 0xBF582E61, 0x4E58F48F, 0xF2DDFDA2, 0xF474EF38, 0x8789BDC2,
|
||||
0x5366F9C3, 0xC8B38E74, 0xB475F255, 0x46FCD9B9, 0x7AEB2661, 0x8B1DDF84, 0x846A0E79, 0x915F95E2, 0x466E598E,
|
||||
0x20B45770, 0x8CD55591, 0xC902DE4C, 0xB90BACE1, 0xBB8205D0, 0x11A86248, 0x7574A99E, 0xB77F19B6, 0xE0A9DC09,
|
||||
0x662D09A1, 0xC4324633, 0xE85A1F02, 0x09F0BE8C, 0x4A99A025, 0x1D6EFE10, 0x1AB93D1D, 0x0BA5A4DF, 0xA186F20F,
|
||||
0x2868F169, 0xDCB7DA83, 0x573906FE, 0xA1E2CE9B, 0x4FCD7F52, 0x50115E01, 0xA70683FA, 0xA002B5C4, 0x0DE6D027,
|
||||
0x9AF88C27, 0x773F8641, 0xC3604C06, 0x61A806B5, 0xF0177A28, 0xC0F586E0, 0x006058AA, 0x30DC7D62, 0x11E69ED7,
|
||||
0x2338EA63, 0x53C2DD94, 0xC2C21634, 0xBBCBEE56, 0x90BCB6DE, 0xEBFC7DA1, 0xCE591D76, 0x6F05E409, 0x4B7C0188,
|
||||
0x39720A3D, 0x7C927C24, 0x86E3725F, 0x724D9DB9, 0x1AC15BB4, 0xD39EB8FC, 0xED545578, 0x08FCA5B5, 0xD83D7CD3,
|
||||
0x4DAD0FC4, 0x1E50EF5E, 0xB161E6F8, 0xA28514D9, 0x6C51133C, 0x6FD5C7E7, 0x56E14EC4, 0x362ABFCE, 0xDDC6C837,
|
||||
0xD79A3234, 0x92638212, 0x670EFA8E, 0x406000E0 ];
|
||||
|
||||
private static const KS3:Array = [ 0x3A39CE37, 0xD3FAF5CF, 0xABC27737, 0x5AC52D1B, 0x5CB0679E, 0x4FA33742, 0xD3822740, 0x99BC9BBE, 0xD5118E9D,
|
||||
0xBF0F7315, 0xD62D1C7E, 0xC700C47B, 0xB78C1B6B, 0x21A19045, 0xB26EB1BE, 0x6A366EB4, 0x5748AB2F, 0xBC946E79,
|
||||
0xC6A376D2, 0x6549C2C8, 0x530FF8EE, 0x468DDE7D, 0xD5730A1D, 0x4CD04DC6, 0x2939BBDB, 0xA9BA4650, 0xAC9526E8,
|
||||
0xBE5EE304, 0xA1FAD5F0, 0x6A2D519A, 0x63EF8CE2, 0x9A86EE22, 0xC089C2B8, 0x43242EF6, 0xA51E03AA, 0x9CF2D0A4,
|
||||
0x83C061BA, 0x9BE96A4D, 0x8FE51550, 0xBA645BD6, 0x2826A2F9, 0xA73A3AE1, 0x4BA99586, 0xEF5562E9, 0xC72FEFD3,
|
||||
0xF752F7DA, 0x3F046F69, 0x77FA0A59, 0x80E4A915, 0x87B08601, 0x9B09E6AD, 0x3B3EE593, 0xE990FD5A, 0x9E34D797,
|
||||
0x2CF0B7D9, 0x022B8B51, 0x96D5AC3A, 0x017DA67D, 0xD1CF3ED6, 0x7C7D2D28, 0x1F9F25CF, 0xADF2B89B, 0x5AD6B472,
|
||||
0x5A88F54C, 0xE029AC71, 0xE019A5E6, 0x47B0ACFD, 0xED93FA9B, 0xE8D3C48D, 0x283B57CC, 0xF8D56629, 0x79132E28,
|
||||
0x785F0191, 0xED756055, 0xF7960E44, 0xE3D35E8C, 0x15056DD4, 0x88F46DBA, 0x03A16125, 0x0564F0BD, 0xC3EB9E15,
|
||||
0x3C9057A2, 0x97271AEC, 0xA93A072A, 0x1B3F6D9B, 0x1E6321F5, 0xF59C66FB, 0x26DCF319, 0x7533D928, 0xB155FDF5,
|
||||
0x03563482, 0x8ABA3CBB, 0x28517711, 0xC20AD9F8, 0xABCC5167, 0xCCAD925F, 0x4DE81751, 0x3830DC8E, 0x379D5862,
|
||||
0x9320F991, 0xEA7A90C2, 0xFB3E7BCE, 0x5121CE64, 0x774FBE32, 0xA8B6E37E, 0xC3293D46, 0x48DE5369, 0x6413E680,
|
||||
0xA2AE0810, 0xDD6DB224, 0x69852DFD, 0x09072166, 0xB39A460A, 0x6445C0DD, 0x586CDECF, 0x1C20C8AE, 0x5BBEF7DD,
|
||||
0x1B588D40, 0xCCD2017F, 0x6BB4E3BB, 0xDDA26A7E, 0x3A59FF45, 0x3E350A44, 0xBCB4CDD5, 0x72EACEA8, 0xFA6484BB,
|
||||
0x8D6612AE, 0xBF3C6F47, 0xD29BE463, 0x542F5D9E, 0xAEC2771B, 0xF64E6370, 0x740E0D8D, 0xE75B1357, 0xF8721671,
|
||||
0xAF537D5D, 0x4040CB08, 0x4EB4E2CC, 0x34D2466A, 0x0115AF84, 0xE1B00428, 0x95983A1D, 0x06B89FB4, 0xCE6EA048,
|
||||
0x6F3F3B82, 0x3520AB82, 0x011A1D4B, 0x277227F8, 0x611560B1, 0xE7933FDC, 0xBB3A792B, 0x344525BD, 0xA08839E1,
|
||||
0x51CE794B, 0x2F32C9B7, 0xA01FBAC9, 0xE01CC87E, 0xBCC7D1F6, 0xCF0111C3, 0xA1E8AAC7, 0x1A908749, 0xD44FBD9A,
|
||||
0xD0DADECB, 0xD50ADA38, 0x0339C32A, 0xC6913667, 0x8DF9317C, 0xE0B12B4F, 0xF79E59B7, 0x43F5BB3A, 0xF2D519FF,
|
||||
0x27D9459C, 0xBF97222C, 0x15E6FC2A, 0x0F91FC71, 0x9B941525, 0xFAE59361, 0xCEB69CEB, 0xC2A86459, 0x12BAA8D1,
|
||||
0xB6C1075E, 0xE3056A0C, 0x10D25065, 0xCB03A442, 0xE0EC6E0E, 0x1698DB3B, 0x4C98A0BE, 0x3278E964, 0x9F1F9532,
|
||||
0xE0D392DF, 0xD3A0342B, 0x8971F21E, 0x1B0A7441, 0x4BA3348C, 0xC5BE7120, 0xC37632D8, 0xDF359F8D, 0x9B992F2E,
|
||||
0xE60B6F47, 0x0FE3F11D, 0xE54CDA54, 0x1EDAD891, 0xCE6279CF, 0xCD3E7E6F, 0x1618B166, 0xFD2C1D05, 0x848FD2C5,
|
||||
0xF6FB2299, 0xF523F357, 0xA6327623, 0x93A83531, 0x56CCCD02, 0xACF08162, 0x5A75EBB5, 0x6E163697, 0x88D273CC,
|
||||
0xDE966292, 0x81B949D0, 0x4C50901B, 0x71C65614, 0xE6C6C7BD, 0x327A140A, 0x45E1D006, 0xC3F27B9A, 0xC9AA53FD,
|
||||
0x62A80F00, 0xBB25BFE2, 0x35BDD2F6, 0x71126905, 0xB2040222, 0xB6CBCF7C, 0xCD769C2B, 0x53113EC0, 0x1640E3D3,
|
||||
0x38ABBD60, 0x2547ADF0, 0xBA38209C, 0xF746CE76, 0x77AFA1C5, 0x20756060, 0x85CBFE4E, 0x8AE88DD8, 0x7AAAF9B0,
|
||||
0x4CF9AA7E, 0x1948C25C, 0x02FB8A8C, 0x01C36AE4, 0xD6EBE1F9, 0x90D4F869, 0xA65CDEA0, 0x3F09252D, 0xC208E69F,
|
||||
0xB74E6132, 0xCE77E25B, 0x578FDFE3, 0x3AC372E6 ];
|
||||
|
||||
// ====================================
|
||||
// Useful constants
|
||||
// ====================================
|
||||
|
||||
private static const ROUNDS:uint = 16;
|
||||
private static const BLOCK_SIZE:uint = 8; // bytes = 64 bits
|
||||
private static const SBOX_SK:uint = 256;
|
||||
private static const P_SZ:uint = ROUNDS + 2;
|
||||
|
||||
private var S0:Array;
|
||||
private var S1:Array;
|
||||
private var S2:Array;
|
||||
private var S3:Array; // the s-boxes
|
||||
private var P:Array; // the p-array
|
||||
|
||||
private var key:ByteArray = null;
|
||||
|
||||
public function BlowFishKey(key:ByteArray) {
|
||||
this.key = key;
|
||||
setKey(key);
|
||||
}
|
||||
|
||||
public function getBlockSize():uint
|
||||
{
|
||||
return BLOCK_SIZE;
|
||||
}
|
||||
|
||||
public function decrypt(block:ByteArray, index:uint=0):void
|
||||
{
|
||||
decryptBlock(block, index, block, index);
|
||||
}
|
||||
|
||||
public function dispose():void
|
||||
{
|
||||
var i:uint=0;
|
||||
for (i=0;i<S0.length;i++) { S0[i]=0; }
|
||||
for (i=0;i<S1.length;i++) { S1[i]=0; }
|
||||
for (i=0;i<S2.length;i++) { S2[i]=0; }
|
||||
for (i=0;i<S3.length;i++) { S3[i]=0; }
|
||||
for (i=0;i<P.length;i++) { P[i]=0; }
|
||||
S0 = null;
|
||||
S1 = null;
|
||||
S2 = null;
|
||||
S3 = null;
|
||||
P = null;
|
||||
for (i=0;i<key.length;i++) {
|
||||
key[i]=0;
|
||||
}
|
||||
key.length = 0;
|
||||
key = null;
|
||||
Memory.gc();
|
||||
}
|
||||
|
||||
public function encrypt(block:ByteArray, index:uint=0):void
|
||||
{
|
||||
encryptBlock(block, index, block, index);
|
||||
}
|
||||
|
||||
// ==================================
|
||||
// Private Implementation
|
||||
// ==================================
|
||||
|
||||
private function F(x:uint):uint
|
||||
{
|
||||
return (((S0[(x >>> 24)] + S1[(x >>> 16) & 0xff]) ^ S2[(x >>> 8) & 0xff]) + S3[x & 0xff]);
|
||||
}
|
||||
|
||||
/**
|
||||
* apply the encryption cycle to each value pair in the table.
|
||||
*/
|
||||
private function processTable(xl:uint, xr:uint, table:Array):void
|
||||
{
|
||||
var size:uint = table.length;
|
||||
|
||||
for (var s:uint = 0; s < size; s += 2)
|
||||
{
|
||||
xl ^= P[0];
|
||||
|
||||
for (var i:uint = 1; i < ROUNDS; i += 2)
|
||||
{
|
||||
xr ^= F(xl) ^ P[i];
|
||||
xl ^= F(xr) ^ P[i + 1];
|
||||
}
|
||||
|
||||
xr ^= P[ROUNDS + 1];
|
||||
|
||||
table[s] = xr;
|
||||
table[s + 1] = xl;
|
||||
|
||||
xr = xl; // end of cycle swap
|
||||
xl = table[s];
|
||||
}
|
||||
}
|
||||
|
||||
private function setKey(key:ByteArray):void
|
||||
{
|
||||
/*
|
||||
* - comments are from _Applied Crypto_, Schneier, p338 please be
|
||||
* careful comparing the two, AC numbers the arrays from 1, the enclosed
|
||||
* code from 0.
|
||||
*
|
||||
* (1) Initialise the S-boxes and the P-array, with a fixed string This
|
||||
* string contains the hexadecimal digits of pi (3.141...)
|
||||
*/
|
||||
S0 = KS0.concat();
|
||||
S1 = KS1.concat();
|
||||
S2 = KS2.concat();
|
||||
S3 = KS3.concat();
|
||||
P = KP.concat();
|
||||
|
||||
/*
|
||||
* (2) Now, XOR P[0] with the first 32 bits of the key, XOR P[1] with
|
||||
* the second 32-bits of the key, and so on for all bits of the key (up
|
||||
* to P[17]). Repeatedly cycle through the key bits until the entire
|
||||
* P-array has been XOR-ed with the key bits
|
||||
*/
|
||||
var keyLength:uint= key.length;
|
||||
var keyIndex:uint = 0;
|
||||
|
||||
for (var i:uint = 0; i < P_SZ; i++)
|
||||
{
|
||||
// get the 32 bits of the key, in 4 * 8 bit chunks
|
||||
var data:uint = 0x0000000;
|
||||
for (var j:uint = 0; j < 4; j++)
|
||||
{
|
||||
// create a 32 bit block
|
||||
data = (data << 8) | (key[keyIndex++] & 0xff);
|
||||
|
||||
// wrap when we get to the end of the key
|
||||
if (keyIndex >= keyLength)
|
||||
{
|
||||
keyIndex = 0;
|
||||
}
|
||||
}
|
||||
// XOR the newly created 32 bit chunk onto the P-array
|
||||
P[i] ^= data;
|
||||
}
|
||||
|
||||
/*
|
||||
* (3) Encrypt the all-zero string with the Blowfish algorithm, using
|
||||
* the subkeys described in (1) and (2)
|
||||
*
|
||||
* (4) Replace P1 and P2 with the output of step (3)
|
||||
*
|
||||
* (5) Encrypt the output of step(3) using the Blowfish algorithm, with
|
||||
* the modified subkeys.
|
||||
*
|
||||
* (6) Replace P3 and P4 with the output of step (5)
|
||||
*
|
||||
* (7) Continue the process, replacing all elements of the P-array and
|
||||
* then all four S-boxes in order, with the output of the continuously
|
||||
* changing Blowfish algorithm
|
||||
*/
|
||||
|
||||
processTable(0, 0, P);
|
||||
processTable(P[P_SZ - 2], P[P_SZ - 1], S0);
|
||||
processTable(S0[SBOX_SK - 2], S0[SBOX_SK - 1], S1);
|
||||
processTable(S1[SBOX_SK - 2], S1[SBOX_SK - 1], S2);
|
||||
processTable(S2[SBOX_SK - 2], S2[SBOX_SK - 1], S3);
|
||||
}
|
||||
|
||||
/**
|
||||
* Encrypt the given input starting at the given offset and place the result
|
||||
* in the provided buffer starting at the given offset. The input will be an
|
||||
* exact multiple of our blocksize.
|
||||
*/
|
||||
private function encryptBlock(src:ByteArray, srcIndex:uint, dst:ByteArray, dstIndex:uint):void
|
||||
{
|
||||
var xl:uint = BytesTo32bits(src, srcIndex);
|
||||
var xr:uint = BytesTo32bits(src, srcIndex + 4);
|
||||
|
||||
xl ^= P[0];
|
||||
|
||||
for (var i:uint = 1; i < ROUNDS; i += 2)
|
||||
{
|
||||
xr ^= F(xl) ^ P[i];
|
||||
xl ^= F(xr) ^ P[i + 1];
|
||||
}
|
||||
|
||||
xr ^= P[ROUNDS + 1];
|
||||
|
||||
Bits32ToBytes(xr, dst, dstIndex);
|
||||
Bits32ToBytes(xl, dst, dstIndex + 4);
|
||||
}
|
||||
|
||||
/**
|
||||
* Decrypt the given input starting at the given offset and place the result
|
||||
* in the provided buffer starting at the given offset. The input will be an
|
||||
* exact multiple of our blocksize.
|
||||
*/
|
||||
private function decryptBlock(src:ByteArray, srcIndex:uint, dst:ByteArray, dstIndex:uint):void
|
||||
{
|
||||
var xl:uint = BytesTo32bits(src, srcIndex);
|
||||
var xr:uint = BytesTo32bits(src, srcIndex + 4);
|
||||
|
||||
xl ^= P[ROUNDS + 1];
|
||||
|
||||
for (var i:uint = ROUNDS; i > 0; i -= 2)
|
||||
{
|
||||
xr ^= F(xl) ^ P[i];
|
||||
xl ^= F(xr) ^ P[i - 1];
|
||||
}
|
||||
|
||||
xr ^= P[0];
|
||||
|
||||
Bits32ToBytes(xr, dst, dstIndex);
|
||||
Bits32ToBytes(xl, dst, dstIndex + 4);
|
||||
}
|
||||
|
||||
private function BytesTo32bits(b:ByteArray, i:uint):uint
|
||||
{
|
||||
return ((b[i] & 0xff) << 24) | ((b[i + 1] & 0xff) << 16) | ((b[i + 2] & 0xff) << 8) | ((b[i + 3] & 0xff));
|
||||
}
|
||||
|
||||
private function Bits32ToBytes(i:uint, b:ByteArray, offset:uint):void
|
||||
{
|
||||
b[offset + 3] = i;
|
||||
b[offset + 2] = (i >> 8);
|
||||
b[offset + 1] = (i >> 16);
|
||||
b[offset] = (i >> 24);
|
||||
}
|
||||
|
||||
public function toString():String {
|
||||
return "blowfish";
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,55 @@
|
||||
/**
|
||||
* CBCMode
|
||||
*
|
||||
* An ActionScript 3 implementation of the CBC confidentiality mode
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
/**
|
||||
* CBC confidentiality mode. why not.
|
||||
*/
|
||||
public class CBCMode extends IVMode implements IMode
|
||||
{
|
||||
|
||||
public function CBCMode(key:ISymmetricKey, padding:IPad = null) {
|
||||
super(key, padding);
|
||||
}
|
||||
|
||||
public function encrypt(src:ByteArray):void {
|
||||
padding.pad(src);
|
||||
var vector:ByteArray = getIV4e();
|
||||
for (var i:uint=0;i<src.length;i+=blockSize) {
|
||||
for (var j:uint=0;j<blockSize;j++) {
|
||||
src[i+j] ^= vector[j];
|
||||
}
|
||||
key.encrypt(src, i);
|
||||
vector.position=0;
|
||||
vector.writeBytes(src, i, blockSize);
|
||||
}
|
||||
}
|
||||
public function decrypt(src:ByteArray):void {
|
||||
var vector:ByteArray = getIV4d();
|
||||
var tmp:ByteArray = new ByteArray;
|
||||
for (var i:uint=0;i<src.length;i+=blockSize) {
|
||||
tmp.position=0;
|
||||
tmp.writeBytes(src, i, blockSize);
|
||||
key.decrypt(src, i);
|
||||
for (var j:uint=0;j<blockSize;j++) {
|
||||
src[i+j] ^= vector[j];
|
||||
}
|
||||
vector.position=0;
|
||||
vector.writeBytes(tmp, 0, blockSize);
|
||||
}
|
||||
padding.unpad(src);
|
||||
}
|
||||
|
||||
public function toString():String {
|
||||
return key.toString()+"-cbc";
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,61 @@
|
||||
/**
|
||||
* CFB8Mode
|
||||
*
|
||||
* An ActionScript 3 implementation of the CFB-8 confidentiality mode
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import com.hurlant.crypto.tests.TestCase;
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
/**
|
||||
*
|
||||
* Note: The constructor accepts an optional padding argument, but ignores it otherwise.
|
||||
*/
|
||||
public class CFB8Mode extends IVMode implements IMode
|
||||
{
|
||||
public function CFB8Mode(key:ISymmetricKey, padding:IPad = null) {
|
||||
super(key, null);
|
||||
}
|
||||
|
||||
public function encrypt(src:ByteArray):void {
|
||||
var vector:ByteArray = getIV4e();
|
||||
var tmp:ByteArray = new ByteArray;
|
||||
for (var i:uint=0;i<src.length;i++) {
|
||||
tmp.position = 0;
|
||||
tmp.writeBytes(vector);
|
||||
key.encrypt(vector);
|
||||
src[i] ^= vector[0];
|
||||
// rotate
|
||||
for (var j:uint=0;j<blockSize-1;j++) {
|
||||
vector[j] = tmp[j+1];
|
||||
}
|
||||
vector[blockSize-1] = src[i];
|
||||
}
|
||||
}
|
||||
|
||||
public function decrypt(src:ByteArray):void {
|
||||
var vector:ByteArray = getIV4d();
|
||||
var tmp:ByteArray = new ByteArray;
|
||||
for (var i:uint=0;i<src.length;i++) {
|
||||
var c:uint = src[i];
|
||||
tmp.position = 0;
|
||||
tmp.writeBytes(vector); // I <- tmp
|
||||
key.encrypt(vector); // O <- vector
|
||||
src[i] ^= vector[0];
|
||||
// rotate
|
||||
for (var j:uint=0;j<blockSize-1;j++) {
|
||||
vector[j] = tmp[j+1];
|
||||
}
|
||||
vector[blockSize-1] = c;
|
||||
}
|
||||
|
||||
}
|
||||
public function toString():String {
|
||||
return key.toString()+"-cfb8";
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,64 @@
|
||||
/**
|
||||
* CFBMode
|
||||
*
|
||||
* An ActionScript 3 implementation of the CFB confidentiality mode
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
/**
|
||||
* This is the "full" CFB.
|
||||
* CFB1 and CFB8 are hiding somewhere else.
|
||||
*
|
||||
* Note: The constructor accepts an optional padding argument, but ignores it otherwise.
|
||||
*/
|
||||
public class CFBMode extends IVMode implements IMode
|
||||
{
|
||||
|
||||
public function CFBMode(key:ISymmetricKey, padding:IPad = null) {
|
||||
super(key,null);
|
||||
}
|
||||
|
||||
public function encrypt(src:ByteArray):void
|
||||
{
|
||||
var l:uint = src.length;
|
||||
var vector:ByteArray = getIV4e();
|
||||
for (var i:uint=0;i<src.length;i+=blockSize) {
|
||||
key.encrypt(vector);
|
||||
var chunk:uint = (i+blockSize<l)?blockSize:l-i;
|
||||
for (var j:uint=0;j<chunk;j++) {
|
||||
src[i+j] ^= vector[j];
|
||||
}
|
||||
vector.position=0;
|
||||
vector.writeBytes(src, i, chunk);
|
||||
}
|
||||
}
|
||||
|
||||
public function decrypt(src:ByteArray):void
|
||||
{
|
||||
var l:uint = src.length;
|
||||
var vector:ByteArray = getIV4d();
|
||||
var tmp:ByteArray = new ByteArray;
|
||||
for (var i:uint=0;i<src.length;i+=blockSize) {
|
||||
key.encrypt(vector);
|
||||
var chunk:uint = (i+blockSize<l)?blockSize:l-i;
|
||||
tmp.position=0;
|
||||
tmp.writeBytes(src, i, chunk);
|
||||
for (var j:uint=0;j<chunk;j++) {
|
||||
src[i+j] ^= vector[j];
|
||||
}
|
||||
vector.position=0;
|
||||
vector.writeBytes(tmp);
|
||||
}
|
||||
}
|
||||
|
||||
public function toString():String {
|
||||
return key.toString()+"-cfb";
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,58 @@
|
||||
/**
|
||||
* CTRMode
|
||||
*
|
||||
* An ActionScript 3 implementation of the counter confidentiality mode
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
public class CTRMode extends IVMode implements IMode
|
||||
{
|
||||
|
||||
public function CTRMode(key:ISymmetricKey, padding:IPad = null) {
|
||||
super(key, padding);
|
||||
}
|
||||
|
||||
public function encrypt(src:ByteArray):void
|
||||
{
|
||||
padding.pad(src);
|
||||
var vector:ByteArray = getIV4e();
|
||||
core(src, vector);
|
||||
}
|
||||
|
||||
public function decrypt(src:ByteArray):void
|
||||
{
|
||||
var vector:ByteArray = getIV4d();
|
||||
core(src, vector);
|
||||
padding.unpad(src);
|
||||
}
|
||||
|
||||
private function core(src:ByteArray, iv:ByteArray):void {
|
||||
var X:ByteArray = new ByteArray;
|
||||
var Xenc:ByteArray = new ByteArray;
|
||||
X.writeBytes(iv);
|
||||
for (var i:uint=0;i<src.length;i+=blockSize) {
|
||||
Xenc.position=0;
|
||||
Xenc.writeBytes(X);
|
||||
key.encrypt(Xenc);
|
||||
for (var j:uint=0;j<blockSize;j++) {
|
||||
src[i+j] ^= Xenc[j];
|
||||
}
|
||||
|
||||
for (j=blockSize-1;j>=0;--j) {
|
||||
X[j]++;
|
||||
if (X[j]!=0)
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
public function toString():String {
|
||||
return key.toString()+"-ctr";
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,365 @@
|
||||
/**
|
||||
* DESKey
|
||||
*
|
||||
* An Actionscript 3 implementation of the Data Encryption Standard (DES)
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* Derived from:
|
||||
* The Bouncy Castle Crypto package,
|
||||
* Copyright (c) 2000-2004 The Legion Of The Bouncy Castle
|
||||
* (http://www.bouncycastle.org)
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
import com.hurlant.util.Hex;
|
||||
import com.hurlant.util.Memory;
|
||||
|
||||
public class DESKey implements ISymmetricKey
|
||||
{
|
||||
/**
|
||||
* what follows is mainly taken from "Applied Cryptography", by Bruce
|
||||
* Schneier, however it also bears great resemblance to Richard
|
||||
* Outerbridge's D3DES...
|
||||
*/
|
||||
|
||||
private static const Df_Key:Array = [ 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32,
|
||||
0x10, 0x89, 0xab, 0xcd, 0xef, 0x01, 0x23, 0x45, 0x67 ];
|
||||
|
||||
private static const bytebit:Array = [ 128, 64, 32, 16, 8, 4, 2, 1 ];
|
||||
|
||||
private static const bigbyte:Array = [ 0x800000, 0x400000, 0x200000, 0x100000, 0x80000, 0x40000, 0x20000, 0x10000, 0x8000,
|
||||
0x4000, 0x2000, 0x1000, 0x800, 0x400, 0x200, 0x100, 0x80, 0x40, 0x20, 0x10, 0x8, 0x4, 0x2, 0x1 ];
|
||||
|
||||
/*
|
||||
* Use the key schedule specified in the Standard (ANSI X3.92-1981).
|
||||
*/
|
||||
|
||||
private static const pc1:Array = [ 56, 48, 40, 32, 24, 16, 8, 0, 57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2,
|
||||
59, 51, 43, 35, 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 60, 52, 44, 36, 28, 20, 12,
|
||||
4, 27, 19, 11, 3 ];
|
||||
|
||||
private static const totrot:Array = [ 1, 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, 21, 23, 25, 27, 28 ];
|
||||
|
||||
private static const pc2:Array = [ 13, 16, 10, 23, 0, 4, 2, 27, 14, 5, 20, 9, 22, 18, 11, 3, 25, 7, 15, 6, 26, 19, 12, 1, 40,
|
||||
51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47, 43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31 ];
|
||||
|
||||
private static const SP1:Array = [ 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 ];
|
||||
|
||||
private static const SP2:Array = [ 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 ];
|
||||
|
||||
private static const SP3:Array = [ 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 ];
|
||||
|
||||
private static const SP4:Array = [ 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 ];
|
||||
|
||||
private static const SP5:Array = [ 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 ];
|
||||
|
||||
private static const SP6:Array = [ 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 ];
|
||||
|
||||
private static const SP7:Array = [ 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 ];
|
||||
|
||||
private static const SP8:Array = [ 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 ];
|
||||
|
||||
|
||||
protected var key:ByteArray;
|
||||
protected var encKey:Array;
|
||||
protected var decKey:Array;
|
||||
|
||||
|
||||
public function DESKey(key:ByteArray) {
|
||||
this.key = key;
|
||||
this.encKey = generateWorkingKey(true, key, 0);
|
||||
this.decKey = generateWorkingKey(false, key, 0);
|
||||
}
|
||||
|
||||
public function getBlockSize():uint
|
||||
{
|
||||
return 8;
|
||||
}
|
||||
|
||||
public function decrypt(block:ByteArray, index:uint=0):void
|
||||
{
|
||||
desFunc(decKey, block, index, block, index);
|
||||
}
|
||||
|
||||
public function dispose():void
|
||||
{
|
||||
var i:uint=0;
|
||||
for (i=0;i<encKey.length;i++) { encKey[i]=0; }
|
||||
for (i=0;i<decKey.length;i++) { decKey[i]=0; }
|
||||
encKey=null;
|
||||
decKey=null;
|
||||
for (i=0;i<key.length;i++) { key[i]=0; }
|
||||
key.length = 0;
|
||||
key = null;
|
||||
Memory.gc();
|
||||
}
|
||||
|
||||
public function encrypt(block:ByteArray, index:uint=0):void
|
||||
{
|
||||
desFunc(encKey, block, index, block, index);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* generate an integer based working key based on our secret key and what we
|
||||
* processing we are planning to do.
|
||||
*
|
||||
* Acknowledgements for this routine go to James Gillogly & Phil Karn.
|
||||
*/
|
||||
protected function generateWorkingKey(encrypting:Boolean, key:ByteArray, off:uint):Array
|
||||
{
|
||||
//int[] newKey = new int[32];
|
||||
var newKey:Array = [];
|
||||
//boolean[] pc1m = new boolean[56], pcr = new boolean[56];
|
||||
var pc1m:ByteArray = new ByteArray;
|
||||
var pcr:ByteArray = new ByteArray;
|
||||
|
||||
var l:uint;
|
||||
|
||||
for (var j:uint = 0; j < 56; j++)
|
||||
{
|
||||
l = pc1[j];
|
||||
|
||||
pc1m[j] = ((key[off + (l >>> 3)] & bytebit[l & 07]) != 0);
|
||||
}
|
||||
|
||||
for (var i:uint = 0; i < 16; i++)
|
||||
{
|
||||
var m:uint;
|
||||
var n:uint;
|
||||
|
||||
if (encrypting)
|
||||
{
|
||||
m = i << 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
m = (15 - i) << 1;
|
||||
}
|
||||
|
||||
n = m + 1;
|
||||
newKey[m] = newKey[n] = 0;
|
||||
|
||||
for (j = 0; j < 28; j++)
|
||||
{
|
||||
l = j + totrot[i];
|
||||
if (l < 28)
|
||||
{
|
||||
pcr[j] = pc1m[l];
|
||||
}
|
||||
else
|
||||
{
|
||||
pcr[j] = pc1m[l - 28];
|
||||
}
|
||||
}
|
||||
|
||||
for (j = 28; j < 56; j++)
|
||||
{
|
||||
l = j + totrot[i];
|
||||
if (l < 56)
|
||||
{
|
||||
pcr[j] = pc1m[l];
|
||||
}
|
||||
else
|
||||
{
|
||||
pcr[j] = pc1m[l - 28];
|
||||
}
|
||||
}
|
||||
|
||||
for (j = 0; j < 24; j++)
|
||||
{
|
||||
if (pcr[pc2[j]])
|
||||
{
|
||||
newKey[m] |= bigbyte[j];
|
||||
}
|
||||
|
||||
if (pcr[pc2[j + 24]])
|
||||
{
|
||||
newKey[n] |= bigbyte[j];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
// store the processed key
|
||||
//
|
||||
for (i = 0; i != 32; i += 2)
|
||||
{
|
||||
var i1:uint;
|
||||
var i2:uint;
|
||||
|
||||
i1 = newKey[i];
|
||||
i2 = newKey[i + 1];
|
||||
|
||||
newKey[i] = ((i1 & 0x00fc0000) << 6) | ((i1 & 0x00000fc0) << 10) | ((i2 & 0x00fc0000) >>> 10)
|
||||
| ((i2 & 0x00000fc0) >>> 6);
|
||||
|
||||
newKey[i + 1] = ((i1 & 0x0003f000) << 12) | ((i1 & 0x0000003f) << 16) | ((i2 & 0x0003f000) >>> 4)
|
||||
| (i2 & 0x0000003f);
|
||||
}
|
||||
return newKey;
|
||||
}
|
||||
|
||||
/**
|
||||
* the DES engine.
|
||||
*/
|
||||
protected function desFunc(wKey:Array, inp:ByteArray, inOff:uint, out:ByteArray, outOff:uint):void
|
||||
{
|
||||
var work:uint;
|
||||
var right:uint;
|
||||
var left:uint;
|
||||
|
||||
left = (inp[inOff + 0] & 0xff) << 24;
|
||||
left |= (inp[inOff + 1] & 0xff) << 16;
|
||||
left |= (inp[inOff + 2] & 0xff) << 8;
|
||||
left |= (inp[inOff + 3] & 0xff);
|
||||
|
||||
right = (inp[inOff + 4] & 0xff) << 24;
|
||||
right |= (inp[inOff + 5] & 0xff) << 16;
|
||||
right |= (inp[inOff + 6] & 0xff) << 8;
|
||||
right |= (inp[inOff + 7] & 0xff);
|
||||
|
||||
work = ((left >>> 4) ^ right) & 0x0f0f0f0f;
|
||||
right ^= work;
|
||||
left ^= (work << 4);
|
||||
work = ((left >>> 16) ^ right) & 0x0000ffff;
|
||||
right ^= work;
|
||||
left ^= (work << 16);
|
||||
work = ((right >>> 2) ^ left) & 0x33333333;
|
||||
left ^= work;
|
||||
right ^= (work << 2);
|
||||
work = ((right >>> 8) ^ left) & 0x00ff00ff;
|
||||
left ^= work;
|
||||
right ^= (work << 8);
|
||||
right = ((right << 1) | ((right >>> 31) & 1)) & 0xffffffff;
|
||||
work = (left ^ right) & 0xaaaaaaaa;
|
||||
left ^= work;
|
||||
right ^= work;
|
||||
left = ((left << 1) | ((left >>> 31) & 1)) & 0xffffffff;
|
||||
|
||||
for (var round:uint = 0; round < 8; round++)
|
||||
{
|
||||
var fval:uint;
|
||||
|
||||
work = (right << 28) | (right >>> 4);
|
||||
work ^= wKey[round * 4 + 0];
|
||||
fval = SP7[work & 0x3f];
|
||||
fval |= SP5[(work >>> 8) & 0x3f];
|
||||
fval |= SP3[(work >>> 16) & 0x3f];
|
||||
fval |= SP1[(work >>> 24) & 0x3f];
|
||||
work = right ^ wKey[round * 4 + 1];
|
||||
fval |= SP8[work & 0x3f];
|
||||
fval |= SP6[(work >>> 8) & 0x3f];
|
||||
fval |= SP4[(work >>> 16) & 0x3f];
|
||||
fval |= SP2[(work >>> 24) & 0x3f];
|
||||
left ^= fval;
|
||||
work = (left << 28) | (left >>> 4);
|
||||
work ^= wKey[round * 4 + 2];
|
||||
fval = SP7[work & 0x3f];
|
||||
fval |= SP5[(work >>> 8) & 0x3f];
|
||||
fval |= SP3[(work >>> 16) & 0x3f];
|
||||
fval |= SP1[(work >>> 24) & 0x3f];
|
||||
work = left ^ wKey[round * 4 + 3];
|
||||
fval |= SP8[work & 0x3f];
|
||||
fval |= SP6[(work >>> 8) & 0x3f];
|
||||
fval |= SP4[(work >>> 16) & 0x3f];
|
||||
fval |= SP2[(work >>> 24) & 0x3f];
|
||||
right ^= fval;
|
||||
}
|
||||
|
||||
right = (right << 31) | (right >>> 1);
|
||||
work = (left ^ right) & 0xaaaaaaaa;
|
||||
left ^= work;
|
||||
right ^= work;
|
||||
left = (left << 31) | (left >>> 1);
|
||||
work = ((left >>> 8) ^ right) & 0x00ff00ff;
|
||||
right ^= work;
|
||||
left ^= (work << 8);
|
||||
work = ((left >>> 2) ^ right) & 0x33333333;
|
||||
right ^= work;
|
||||
left ^= (work << 2);
|
||||
work = ((right >>> 16) ^ left) & 0x0000ffff;
|
||||
left ^= work;
|
||||
right ^= (work << 16);
|
||||
work = ((right >>> 4) ^ left) & 0x0f0f0f0f;
|
||||
left ^= work;
|
||||
right ^= (work << 4);
|
||||
|
||||
out[outOff + 0] = ((right >>> 24) & 0xff);
|
||||
out[outOff + 1] = ((right >>> 16) & 0xff);
|
||||
out[outOff + 2] = ((right >>> 8) & 0xff);
|
||||
out[outOff + 3] = (right & 0xff);
|
||||
out[outOff + 4] = ((left >>> 24) & 0xff);
|
||||
out[outOff + 5] = ((left >>> 16) & 0xff);
|
||||
out[outOff + 6] = ((left >>> 8) & 0xff);
|
||||
out[outOff + 7] = (left & 0xff);
|
||||
}
|
||||
|
||||
|
||||
public function toString():String {
|
||||
return "des";
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,84 @@
|
||||
/**
|
||||
* ECBMode
|
||||
*
|
||||
* An ActionScript 3 implementation of the ECB confidentiality mode
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
import com.hurlant.util.Memory;
|
||||
import com.hurlant.util.Hex;
|
||||
|
||||
/**
|
||||
* ECB mode.
|
||||
* This uses a padding and a symmetric key.
|
||||
* If no padding is given, PKCS#5 is used.
|
||||
*/
|
||||
public class ECBMode implements IMode
|
||||
{
|
||||
private var key:ISymmetricKey;
|
||||
private var padding:IPad;
|
||||
|
||||
public function ECBMode(key:ISymmetricKey, padding:IPad = null) {
|
||||
this.key = key;
|
||||
if (padding == null) {
|
||||
padding = new PKCS5(key.getBlockSize());
|
||||
}
|
||||
this.padding = padding;
|
||||
}
|
||||
|
||||
public function getBlockSize():uint {
|
||||
return key.getBlockSize();
|
||||
}
|
||||
|
||||
public function encrypt(src:ByteArray):void {
|
||||
padding.pad(src);
|
||||
src.position = 0;
|
||||
var blockSize:uint = key.getBlockSize();
|
||||
var tmp:ByteArray = new ByteArray;
|
||||
var dst:ByteArray = new ByteArray;
|
||||
for (var i:uint=0;i<src.length;i+=blockSize) {
|
||||
tmp.length=0;
|
||||
src.readBytes(tmp, 0, blockSize);
|
||||
key.encrypt(tmp);
|
||||
dst.writeBytes(tmp);
|
||||
}
|
||||
src.length=0;
|
||||
src.writeBytes(dst);
|
||||
}
|
||||
public function decrypt(src:ByteArray):void {
|
||||
src.position = 0;
|
||||
var blockSize:uint = key.getBlockSize();
|
||||
|
||||
// sanity check.
|
||||
if (src.length%blockSize!=0) {
|
||||
throw new Error("ECB mode cipher length must be a multiple of blocksize "+blockSize);
|
||||
}
|
||||
|
||||
var tmp:ByteArray = new ByteArray;
|
||||
var dst:ByteArray = new ByteArray;
|
||||
for (var i:uint=0;i<src.length;i+=blockSize) {
|
||||
tmp.length=0;
|
||||
src.readBytes(tmp, 0, blockSize);
|
||||
|
||||
key.decrypt(tmp);
|
||||
dst.writeBytes(tmp);
|
||||
}
|
||||
padding.unpad(dst);
|
||||
src.length=0;
|
||||
src.writeBytes(dst);
|
||||
}
|
||||
public function dispose():void {
|
||||
key.dispose();
|
||||
key = null;
|
||||
padding = null;
|
||||
Memory.gc();
|
||||
}
|
||||
public function toString():String {
|
||||
return key.toString()+"-ecb";
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,21 @@
|
||||
/**
|
||||
* ICipher
|
||||
*
|
||||
* A generic interface to use symmetric ciphers
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
public interface ICipher
|
||||
{
|
||||
function getBlockSize():uint;
|
||||
function encrypt(src:ByteArray):void;
|
||||
function decrypt(src:ByteArray):void;
|
||||
function dispose():void;
|
||||
function toString():String;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,15 @@
|
||||
/**
|
||||
* IMode
|
||||
*
|
||||
* An interface for confidentiality modes to implement
|
||||
* This could become deprecated at some point.
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
public interface IMode extends ICipher
|
||||
{
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,32 @@
|
||||
/**
|
||||
* IPad
|
||||
*
|
||||
* An interface for padding mechanisms to implement.
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
/**
|
||||
* Tiny interface that represents a padding mechanism.
|
||||
*/
|
||||
public interface IPad
|
||||
{
|
||||
/**
|
||||
* Add padding to the array
|
||||
*/
|
||||
function pad(a:ByteArray):void;
|
||||
/**
|
||||
* Remove padding from the array.
|
||||
* @throws Error if the padding is invalid.
|
||||
*/
|
||||
function unpad(a:ByteArray):void;
|
||||
/**
|
||||
* Set the blockSize to work on
|
||||
*/
|
||||
function setBlockSize(bs:uint):void;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,35 @@
|
||||
/**
|
||||
* ISymmetricKey
|
||||
*
|
||||
* An interface for symmetric encryption keys to implement.
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
public interface ISymmetricKey
|
||||
{
|
||||
/**
|
||||
* Returns the block size used by this particular encryption algorithm
|
||||
*/
|
||||
function getBlockSize():uint;
|
||||
/**
|
||||
* Encrypt one block of data in "block", starting at "index", of length "getBlockSize()"
|
||||
*/
|
||||
function encrypt(block:ByteArray, index:uint=0):void;
|
||||
/**
|
||||
* Decrypt one block of data in "block", starting at "index", of length "getBlockSize()"
|
||||
*/
|
||||
function decrypt(block:ByteArray, index:uint=0):void;
|
||||
/**
|
||||
* Attempts to destroy sensitive information from memory, such as encryption keys.
|
||||
* Note: This is not guaranteed to work given the Flash sandbox model.
|
||||
*/
|
||||
function dispose():void;
|
||||
|
||||
function toString():String;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,108 @@
|
||||
/**
|
||||
* IVMode
|
||||
*
|
||||
* An abstract class for confidentialy modes that rely on an initialization vector.
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import com.hurlant.crypto.prng.Random;
|
||||
import com.hurlant.crypto.tests.TestCase;
|
||||
import com.hurlant.util.Memory;
|
||||
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
/**
|
||||
* An "abtract" class to avoid redundant code in subclasses
|
||||
*/
|
||||
public class IVMode
|
||||
{
|
||||
protected var key:ISymmetricKey;
|
||||
protected var padding:IPad;
|
||||
// random generator used to generate IVs
|
||||
protected var prng:Random;
|
||||
// optional static IV. used for testing only.
|
||||
protected var iv:ByteArray;
|
||||
// generated IV is stored here.
|
||||
protected var lastIV:ByteArray;
|
||||
protected var blockSize:uint;
|
||||
|
||||
|
||||
public function IVMode(key:ISymmetricKey, padding:IPad = null) {
|
||||
this.key = key;
|
||||
blockSize = key.getBlockSize();
|
||||
if (padding == null) {
|
||||
padding = new PKCS5(blockSize);
|
||||
}
|
||||
this.padding = padding;
|
||||
|
||||
prng = new Random;
|
||||
iv = null;
|
||||
lastIV = new ByteArray;
|
||||
}
|
||||
|
||||
public function getBlockSize():uint {
|
||||
return key.getBlockSize();
|
||||
}
|
||||
public function dispose():void {
|
||||
var i:uint;
|
||||
if (iv != null) {
|
||||
for (i=0;i<iv.length;i++) {
|
||||
iv[i] = prng.nextByte();
|
||||
}
|
||||
iv.length=0;
|
||||
iv = null;
|
||||
}
|
||||
if (lastIV != null) {
|
||||
for (i=0;i<iv.length;i++) {
|
||||
lastIV[i] = prng.nextByte();
|
||||
}
|
||||
lastIV.length=0;
|
||||
lastIV=null;
|
||||
}
|
||||
key.dispose();
|
||||
key = null;
|
||||
padding = null;
|
||||
prng.dispose();
|
||||
prng = null;
|
||||
Memory.gc();
|
||||
}
|
||||
/**
|
||||
* Optional function to force the IV value.
|
||||
* Normally, an IV gets generated randomly at every encrypt() call.
|
||||
* Also, use this to set the IV before calling decrypt()
|
||||
* (if not set before decrypt(), the IV is read from the beginning of the stream.)
|
||||
*/
|
||||
public function set IV(value:ByteArray):void {
|
||||
iv = value;
|
||||
lastIV.length=0;
|
||||
lastIV.writeBytes(iv);
|
||||
}
|
||||
public function get IV():ByteArray {
|
||||
return lastIV;
|
||||
}
|
||||
|
||||
protected function getIV4e():ByteArray {
|
||||
var vec:ByteArray = new ByteArray;
|
||||
if (iv) {
|
||||
vec.writeBytes(iv);
|
||||
} else {
|
||||
prng.nextBytes(vec, blockSize);
|
||||
}
|
||||
lastIV.length=0;
|
||||
lastIV.writeBytes(vec);
|
||||
return vec;
|
||||
}
|
||||
protected function getIV4d():ByteArray {
|
||||
var vec:ByteArray = new ByteArray;
|
||||
if (iv) {
|
||||
vec.writeBytes(iv);
|
||||
} else {
|
||||
throw new Error("an IV must be set before calling decrypt()");
|
||||
}
|
||||
return vec;
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,34 @@
|
||||
/**
|
||||
* NullPad
|
||||
*
|
||||
* A padding class that doesn't pad.
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
/**
|
||||
* A pad that does nothing.
|
||||
* Useful when you don't want padding in your Mode.
|
||||
*/
|
||||
public class NullPad implements IPad
|
||||
{
|
||||
public function unpad(a:ByteArray):void
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
public function pad(a:ByteArray):void
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
public function setBlockSize(bs:uint):void {
|
||||
return;
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,52 @@
|
||||
/**
|
||||
* OFBMode
|
||||
*
|
||||
* An ActionScript 3 implementation of the OFB confidentiality mode
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
public class OFBMode extends IVMode implements IMode
|
||||
{
|
||||
public function OFBMode(key:ISymmetricKey, padding:IPad=null)
|
||||
{
|
||||
super(key, null);
|
||||
}
|
||||
|
||||
public function encrypt(src:ByteArray):void
|
||||
{
|
||||
var vector:ByteArray = getIV4e();
|
||||
core(src, vector);
|
||||
}
|
||||
|
||||
public function decrypt(src:ByteArray):void
|
||||
{
|
||||
var vector:ByteArray = getIV4d();
|
||||
core(src, vector);
|
||||
}
|
||||
|
||||
private function core(src:ByteArray, iv:ByteArray):void {
|
||||
var l:uint = src.length;
|
||||
var tmp:ByteArray = new ByteArray;
|
||||
for (var i:uint=0;i<src.length;i+=blockSize) {
|
||||
key.encrypt(iv);
|
||||
tmp.position=0;
|
||||
tmp.writeBytes(iv);
|
||||
var chunk:uint = (i+blockSize<l)?blockSize:l-i;
|
||||
for (var j:uint=0;j<chunk;j++) {
|
||||
src[i+j] ^= iv[j];
|
||||
}
|
||||
iv.position=0;
|
||||
iv.writeBytes(tmp);
|
||||
}
|
||||
}
|
||||
public function toString():String {
|
||||
return key.toString()+"-ofb";
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,44 @@
|
||||
/**
|
||||
* PKCS5
|
||||
*
|
||||
* A padding implementation of PKCS5.
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
public class PKCS5 implements IPad
|
||||
{
|
||||
private var blockSize:uint;
|
||||
|
||||
public function PKCS5(blockSize:uint=0) {
|
||||
this.blockSize = blockSize;
|
||||
}
|
||||
|
||||
public function pad(a:ByteArray):void {
|
||||
var c:uint = blockSize-a.length%blockSize;
|
||||
for (var i:uint=0;i<c;i++){
|
||||
a[a.length] = c;
|
||||
}
|
||||
}
|
||||
public function unpad(a:ByteArray):void {
|
||||
var c:uint = a.length%blockSize;
|
||||
if (c!=0) throw new Error("PKCS#5::unpad: ByteArray.length isn't a multiple of the blockSize");
|
||||
c = a[a.length-1];
|
||||
for (var i:uint=c;i>0;i--) {
|
||||
var v:uint = a[a.length-1];
|
||||
a.length--;
|
||||
if (c!=v) throw new Error("PKCS#5:unpad: Invalid padding value. expected ["+c+"], found ["+v+"]");
|
||||
}
|
||||
// that is all.
|
||||
}
|
||||
|
||||
public function setBlockSize(bs:uint):void {
|
||||
blockSize = bs;
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,60 @@
|
||||
/**
|
||||
* SimpleIVMode
|
||||
*
|
||||
* A convenience class that automatically places the IV
|
||||
* at the beginning of the encrypted stream, so it doesn't have to
|
||||
* be handled explicitely.
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
import com.hurlant.util.Memory;
|
||||
|
||||
public class SimpleIVMode implements IMode, ICipher
|
||||
{
|
||||
protected var mode:IVMode;
|
||||
protected var cipher:ICipher;
|
||||
|
||||
public function SimpleIVMode(mode:IVMode) {
|
||||
this.mode = mode;
|
||||
cipher = mode as ICipher;
|
||||
}
|
||||
|
||||
public function getBlockSize():uint {
|
||||
return mode.getBlockSize();
|
||||
}
|
||||
|
||||
public function dispose():void {
|
||||
mode.dispose();
|
||||
mode = null;
|
||||
cipher = null;
|
||||
Memory.gc();
|
||||
}
|
||||
|
||||
public function encrypt(src:ByteArray):void {
|
||||
cipher.encrypt(src);
|
||||
var tmp:ByteArray = new ByteArray;
|
||||
tmp.writeBytes(mode.IV);
|
||||
tmp.writeBytes(src);
|
||||
src.position=0;
|
||||
src.writeBytes(tmp);
|
||||
}
|
||||
|
||||
public function decrypt(src:ByteArray):void {
|
||||
var tmp:ByteArray = new ByteArray;
|
||||
tmp.writeBytes(src, 0, getBlockSize());
|
||||
mode.IV = tmp;
|
||||
tmp = new ByteArray;
|
||||
tmp.writeBytes(src, getBlockSize());
|
||||
cipher.decrypt(tmp);
|
||||
src.length=0;
|
||||
src.writeBytes(tmp);
|
||||
}
|
||||
public function toString():String {
|
||||
return "simple-"+cipher.toString();
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,88 @@
|
||||
/**
|
||||
* TripleDESKey
|
||||
*
|
||||
* An Actionscript 3 implementation of Triple DES
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* Derived from:
|
||||
* The Bouncy Castle Crypto package,
|
||||
* Copyright (c) 2000-2004 The Legion Of The Bouncy Castle
|
||||
* (http://www.bouncycastle.org)
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import flash.utils.ByteArray;
|
||||
import com.hurlant.util.Memory;
|
||||
import com.hurlant.util.Hex;
|
||||
|
||||
public class TripleDESKey extends DESKey
|
||||
{
|
||||
protected var encKey2:Array;
|
||||
protected var encKey3:Array;
|
||||
protected var decKey2:Array;
|
||||
protected var decKey3:Array;
|
||||
|
||||
/**
|
||||
* This supports 2TDES and 3TDES.
|
||||
* If the key passed is 128 bits, 2TDES is used.
|
||||
* If the key has 192 bits, 3TDES is used.
|
||||
* Other key lengths give "undefined" results.
|
||||
*/
|
||||
public function TripleDESKey(key:ByteArray)
|
||||
{
|
||||
super(key);
|
||||
encKey2 = generateWorkingKey(false, key, 8);
|
||||
decKey2 = generateWorkingKey(true, key, 8);
|
||||
if (key.length>16) {
|
||||
encKey3 = generateWorkingKey(true, key, 16);
|
||||
decKey3 = generateWorkingKey(false, key, 16);
|
||||
} else {
|
||||
encKey3 = encKey;
|
||||
decKey3 = decKey;
|
||||
}
|
||||
}
|
||||
|
||||
public override function dispose():void
|
||||
{
|
||||
super.dispose();
|
||||
var i:uint = 0;
|
||||
if (encKey2!=null) {
|
||||
for (i=0;i<encKey2.length;i++) { encKey2[i]=0; }
|
||||
encKey2=null;
|
||||
}
|
||||
if (encKey3!=null) {
|
||||
for (i=0;i<encKey3.length;i++) { encKey3[i]=0; }
|
||||
encKey3=null;
|
||||
}
|
||||
if (decKey2!=null) {
|
||||
for (i=0;i<decKey2.length;i++) { decKey2[i]=0; }
|
||||
decKey2=null
|
||||
}
|
||||
if (decKey3!=null) {
|
||||
for (i=0;i<decKey3.length;i++) { decKey3[i]=0; }
|
||||
decKey3=null;
|
||||
}
|
||||
Memory.gc();
|
||||
}
|
||||
|
||||
public override function encrypt(block:ByteArray, index:uint=0):void
|
||||
{
|
||||
desFunc(encKey, block,index, block,index);
|
||||
desFunc(encKey2, block,index, block,index);
|
||||
desFunc(encKey3, block,index, block,index);
|
||||
}
|
||||
|
||||
public override function decrypt(block:ByteArray, index:uint=0):void
|
||||
{
|
||||
desFunc(decKey3, block, index, block, index);
|
||||
desFunc(decKey2, block, index, block, index);
|
||||
desFunc(decKey, block, index, block, index);
|
||||
}
|
||||
|
||||
public override function toString():String {
|
||||
return "3des";
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,94 @@
|
||||
/**
|
||||
* XTeaKey
|
||||
*
|
||||
* An ActionScript 3 implementation of the XTea algorithm
|
||||
* Copyright (c) 2007 Henri Torgemane
|
||||
*
|
||||
* See LICENSE.txt for full license information.
|
||||
*/
|
||||
package com.hurlant.crypto.symmetric
|
||||
{
|
||||
import com.hurlant.crypto.prng.Random;
|
||||
import com.hurlant.util.Memory;
|
||||
|
||||
import flash.utils.ByteArray;
|
||||
|
||||
|
||||
public class XTeaKey implements ISymmetricKey
|
||||
{
|
||||
public const NUM_ROUNDS:uint = 64;
|
||||
private var k:Array;
|
||||
|
||||
public function XTeaKey(a:ByteArray) {
|
||||
a.position=0;
|
||||
k = [a.readUnsignedInt(),a.readUnsignedInt(),a.readUnsignedInt(),a.readUnsignedInt()];
|
||||
}
|
||||
/**
|
||||
* K is an hex string with 32 digits.
|
||||
*/
|
||||
public static function parseKey(K:String):XTeaKey {
|
||||
var a:ByteArray = new ByteArray;
|
||||
a.writeUnsignedInt(parseInt(K.substr(0,8),16));
|
||||
a.writeUnsignedInt(parseInt(K.substr(8,8),16));
|
||||
a.writeUnsignedInt(parseInt(K.substr(16,8),16));
|
||||
a.writeUnsignedInt(parseInt(K.substr(24,8),16));
|
||||
a.position = 0;
|
||||
return new XTeaKey(a);
|
||||
}
|
||||
|
||||
public function getBlockSize():uint {
|
||||
return 8;
|
||||
}
|
||||
|
||||
public function encrypt(block:ByteArray, index:uint=0):void {
|
||||
block.position = index;
|
||||
var v0:uint = block.readUnsignedInt();
|
||||
var v1:uint = block.readUnsignedInt();
|
||||
var i:uint;
|
||||
var sum:uint =0;
|
||||
var delta:uint = 0x9E3779B9;
|
||||
for (i=0; i<NUM_ROUNDS; i++) {
|
||||
v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]);
|
||||
sum += delta;
|
||||
v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]);
|
||||
}
|
||||
block.position-=8;
|
||||
block.writeUnsignedInt(v0);
|
||||
block.writeUnsignedInt(v1);
|
||||
}
|
||||
|
||||
public function decrypt(block:ByteArray, index:uint=0):void {
|
||||
block.position = index;
|
||||
var v0:uint = block.readUnsignedInt();
|
||||
var v1:uint = block.readUnsignedInt();
|
||||
var i:uint;
|
||||
var delta:uint = 0x9E3779B9;
|
||||
var sum:uint = delta*NUM_ROUNDS;
|
||||
for (i=0; i<NUM_ROUNDS; i++) {
|
||||
v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]);
|
||||
sum -= delta;
|
||||
v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]);
|
||||
}
|
||||
block.position-=8;
|
||||
block.writeUnsignedInt(v0);
|
||||
block.writeUnsignedInt(v1);
|
||||
}
|
||||
|
||||
public function dispose():void {
|
||||
//private var k:Array;
|
||||
var r:Random = new Random;
|
||||
for (var i:uint=0;i<k.length;i++) {
|
||||
k[i] = r.nextByte();
|
||||
delete k[i];
|
||||
}
|
||||
k = null;
|
||||
Memory.gc();
|
||||
}
|
||||
|
||||
public function toString():String {
|
||||
return "xtea";
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user