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@@ -2,511 +2,514 @@
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namespace Renci.SshNet.Security.Cryptography.Ciphers
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{
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- /// <summary>
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+ /// <summary>
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/// Blowfish cipher implementation.
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/// </summary>
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- public sealed class BlowfishCipher : BlockCipher
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- {
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- #region Static reference tables
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-
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- private readonly static uint[] KP =
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- {
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- 0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
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- 0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
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- 0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
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- 0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917,
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- 0x9216D5D9, 0x8979FB1B
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- },
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- KS0 =
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- {
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- 0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7,
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- 0xB8E1AFED, 0x6A267E96, 0xBA7C9045, 0xF12C7F99,
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- 0x24A19947, 0xB3916CF7, 0x0801F2E2, 0x858EFC16,
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- 0x636920D8, 0x71574E69, 0xA458FEA3, 0xF4933D7E,
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- 0x0D95748F, 0x728EB658, 0x718BCD58, 0x82154AEE,
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- 0x7B54A41D, 0xC25A59B5, 0x9C30D539, 0x2AF26013,
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- 0xC5D1B023, 0x286085F0, 0xCA417918, 0xB8DB38EF,
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- 0x8E79DCB0, 0x603A180E, 0x6C9E0E8B, 0xB01E8A3E,
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- 0xD71577C1, 0xBD314B27, 0x78AF2FDA, 0x55605C60,
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- 0xE65525F3, 0xAA55AB94, 0x57489862, 0x63E81440,
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- 0x55CA396A, 0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE,
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- 0xA15486AF, 0x7C72E993, 0xB3EE1411, 0x636FBC2A,
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- 0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E,
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- 0xAFD6BA33, 0x6C24CF5C, 0x7A325381, 0x28958677,
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- 0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B, 0x66282193,
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- 0x61D809CC, 0xFB21A991, 0x487CAC60, 0x5DEC8032,
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- 0xEF845D5D, 0xE98575B1, 0xDC262302, 0xEB651B88,
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- 0x23893E81, 0xD396ACC5, 0x0F6D6FF3, 0x83F44239,
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- 0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E,
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- 0x21C66842, 0xF6E96C9A, 0x670C9C61, 0xABD388F0,
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- 0x6A51A0D2, 0xD8542F68, 0x960FA728, 0xAB5133A3,
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- 0x6EEF0B6C, 0x137A3BE4, 0xBA3BF050, 0x7EFB2A98,
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- 0xA1F1651D, 0x39AF0176, 0x66CA593E, 0x82430E88,
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- 0x8CEE8619, 0x456F9FB4, 0x7D84A5C3, 0x3B8B5EBE,
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- 0xE06F75D8, 0x85C12073, 0x401A449F, 0x56C16AA6,
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- 0x4ED3AA62, 0x363F7706, 0x1BFEDF72, 0x429B023D,
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- 0x37D0D724, 0xD00A1248, 0xDB0FEAD3, 0x49F1C09B,
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- 0x075372C9, 0x80991B7B, 0x25D479D8, 0xF6E8DEF7,
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- 0xE3FE501A, 0xB6794C3B, 0x976CE0BD, 0x04C006BA,
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- 0xC1A94FB6, 0x409F60C4, 0x5E5C9EC2, 0x196A2463,
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- 0x68FB6FAF, 0x3E6C53B5, 0x1339B2EB, 0x3B52EC6F,
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- 0x6DFC511F, 0x9B30952C, 0xCC814544, 0xAF5EBD09,
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- 0xBEE3D004, 0xDE334AFD, 0x660F2807, 0x192E4BB3,
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- 0xC0CBA857, 0x45C8740F, 0xD20B5F39, 0xB9D3FBDB,
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- 0x5579C0BD, 0x1A60320A, 0xD6A100C6, 0x402C7279,
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- 0x679F25FE, 0xFB1FA3CC, 0x8EA5E9F8, 0xDB3222F8,
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- 0x3C7516DF, 0xFD616B15, 0x2F501EC8, 0xAD0552AB,
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- 0x323DB5FA, 0xFD238760, 0x53317B48, 0x3E00DF82,
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- 0x9E5C57BB, 0xCA6F8CA0, 0x1A87562E, 0xDF1769DB,
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- 0xD542A8F6, 0x287EFFC3, 0xAC6732C6, 0x8C4F5573,
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- 0x695B27B0, 0xBBCA58C8, 0xE1FFA35D, 0xB8F011A0,
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- 0x10FA3D98, 0xFD2183B8, 0x4AFCB56C, 0x2DD1D35B,
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- 0x9A53E479, 0xB6F84565, 0xD28E49BC, 0x4BFB9790,
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- 0xE1DDF2DA, 0xA4CB7E33, 0x62FB1341, 0xCEE4C6E8,
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- 0xEF20CADA, 0x36774C01, 0xD07E9EFE, 0x2BF11FB4,
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- 0x95DBDA4D, 0xAE909198, 0xEAAD8E71, 0x6B93D5A0,
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- 0xD08ED1D0, 0xAFC725E0, 0x8E3C5B2F, 0x8E7594B7,
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- 0x8FF6E2FB, 0xF2122B64, 0x8888B812, 0x900DF01C,
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- 0x4FAD5EA0, 0x688FC31C, 0xD1CFF191, 0xB3A8C1AD,
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- 0x2F2F2218, 0xBE0E1777, 0xEA752DFE, 0x8B021FA1,
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- 0xE5A0CC0F, 0xB56F74E8, 0x18ACF3D6, 0xCE89E299,
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- 0xB4A84FE0, 0xFD13E0B7, 0x7CC43B81, 0xD2ADA8D9,
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- 0x165FA266, 0x80957705, 0x93CC7314, 0x211A1477,
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- 0xE6AD2065, 0x77B5FA86, 0xC75442F5, 0xFB9D35CF,
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- 0xEBCDAF0C, 0x7B3E89A0, 0xD6411BD3, 0xAE1E7E49,
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- 0x00250E2D, 0x2071B35E, 0x226800BB, 0x57B8E0AF,
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- 0x2464369B, 0xF009B91E, 0x5563911D, 0x59DFA6AA,
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- 0x78C14389, 0xD95A537F, 0x207D5BA2, 0x02E5B9C5,
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- 0x83260376, 0x6295CFA9, 0x11C81968, 0x4E734A41,
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- 0xB3472DCA, 0x7B14A94A, 0x1B510052, 0x9A532915,
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- 0xD60F573F, 0xBC9BC6E4, 0x2B60A476, 0x81E67400,
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- 0x08BA6FB5, 0x571BE91F, 0xF296EC6B, 0x2A0DD915,
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- 0xB6636521, 0xE7B9F9B6, 0xFF34052E, 0xC5855664,
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- 0x53B02D5D, 0xA99F8FA1, 0x08BA4799, 0x6E85076A
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- },
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- KS1 =
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- {
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- 0x4B7A70E9, 0xB5B32944, 0xDB75092E, 0xC4192623,
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- 0xAD6EA6B0, 0x49A7DF7D, 0x9CEE60B8, 0x8FEDB266,
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- 0xECAA8C71, 0x699A17FF, 0x5664526C, 0xC2B19EE1,
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- 0x193602A5, 0x75094C29, 0xA0591340, 0xE4183A3E,
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- 0x3F54989A, 0x5B429D65, 0x6B8FE4D6, 0x99F73FD6,
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- 0xA1D29C07, 0xEFE830F5, 0x4D2D38E6, 0xF0255DC1,
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- 0x4CDD2086, 0x8470EB26, 0x6382E9C6, 0x021ECC5E,
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- 0x09686B3F, 0x3EBAEFC9, 0x3C971814, 0x6B6A70A1,
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- 0x687F3584, 0x52A0E286, 0xB79C5305, 0xAA500737,
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- 0x3E07841C, 0x7FDEAE5C, 0x8E7D44EC, 0x5716F2B8,
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- 0xB03ADA37, 0xF0500C0D, 0xF01C1F04, 0x0200B3FF,
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- 0xAE0CF51A, 0x3CB574B2, 0x25837A58, 0xDC0921BD,
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- 0xD19113F9, 0x7CA92FF6, 0x94324773, 0x22F54701,
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- 0x3AE5E581, 0x37C2DADC, 0xC8B57634, 0x9AF3DDA7,
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- 0xA9446146, 0x0FD0030E, 0xECC8C73E, 0xA4751E41,
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- 0xE238CD99, 0x3BEA0E2F, 0x3280BBA1, 0x183EB331,
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- 0x4E548B38, 0x4F6DB908, 0x6F420D03, 0xF60A04BF,
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- 0x2CB81290, 0x24977C79, 0x5679B072, 0xBCAF89AF,
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- 0xDE9A771F, 0xD9930810, 0xB38BAE12, 0xDCCF3F2E,
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- 0x5512721F, 0x2E6B7124, 0x501ADDE6, 0x9F84CD87,
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- 0x7A584718, 0x7408DA17, 0xBC9F9ABC, 0xE94B7D8C,
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- 0xEC7AEC3A, 0xDB851DFA, 0x63094366, 0xC464C3D2,
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- 0xEF1C1847, 0x3215D908, 0xDD433B37, 0x24C2BA16,
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- 0x12A14D43, 0x2A65C451, 0x50940002, 0x133AE4DD,
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- 0x71DFF89E, 0x10314E55, 0x81AC77D6, 0x5F11199B,
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- 0x043556F1, 0xD7A3C76B, 0x3C11183B, 0x5924A509,
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- 0xF28FE6ED, 0x97F1FBFA, 0x9EBABF2C, 0x1E153C6E,
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- 0x86E34570, 0xEAE96FB1, 0x860E5E0A, 0x5A3E2AB3,
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- 0x771FE71C, 0x4E3D06FA, 0x2965DCB9, 0x99E71D0F,
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- 0x803E89D6, 0x5266C825, 0x2E4CC978, 0x9C10B36A,
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- 0xC6150EBA, 0x94E2EA78, 0xA5FC3C53, 0x1E0A2DF4,
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- 0xF2F74EA7, 0x361D2B3D, 0x1939260F, 0x19C27960,
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- 0x5223A708, 0xF71312B6, 0xEBADFE6E, 0xEAC31F66,
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- 0xE3BC4595, 0xA67BC883, 0xB17F37D1, 0x018CFF28,
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- 0xC332DDEF, 0xBE6C5AA5, 0x65582185, 0x68AB9802,
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- 0xEECEA50F, 0xDB2F953B, 0x2AEF7DAD, 0x5B6E2F84,
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- 0x1521B628, 0x29076170, 0xECDD4775, 0x619F1510,
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- 0x13CCA830, 0xEB61BD96, 0x0334FE1E, 0xAA0363CF,
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- 0xB5735C90, 0x4C70A239, 0xD59E9E0B, 0xCBAADE14,
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- 0xEECC86BC, 0x60622CA7, 0x9CAB5CAB, 0xB2F3846E,
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- 0x648B1EAF, 0x19BDF0CA, 0xA02369B9, 0x655ABB50,
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- 0x40685A32, 0x3C2AB4B3, 0x319EE9D5, 0xC021B8F7,
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- 0x9B540B19, 0x875FA099, 0x95F7997E, 0x623D7DA8,
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- 0xF837889A, 0x97E32D77, 0x11ED935F, 0x16681281,
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- 0x0E358829, 0xC7E61FD6, 0x96DEDFA1, 0x7858BA99,
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- 0x57F584A5, 0x1B227263, 0x9B83C3FF, 0x1AC24696,
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- 0xCDB30AEB, 0x532E3054, 0x8FD948E4, 0x6DBC3128,
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- 0x58EBF2EF, 0x34C6FFEA, 0xFE28ED61, 0xEE7C3C73,
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- 0x5D4A14D9, 0xE864B7E3, 0x42105D14, 0x203E13E0,
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- 0x45EEE2B6, 0xA3AAABEA, 0xDB6C4F15, 0xFACB4FD0,
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- 0xC742F442, 0xEF6ABBB5, 0x654F3B1D, 0x41CD2105,
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- 0xD81E799E, 0x86854DC7, 0xE44B476A, 0x3D816250,
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- 0xCF62A1F2, 0x5B8D2646, 0xFC8883A0, 0xC1C7B6A3,
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- 0x7F1524C3, 0x69CB7492, 0x47848A0B, 0x5692B285,
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- 0x095BBF00, 0xAD19489D, 0x1462B174, 0x23820E00,
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- 0x58428D2A, 0x0C55F5EA, 0x1DADF43E, 0x233F7061,
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- 0x3372F092, 0x8D937E41, 0xD65FECF1, 0x6C223BDB,
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- 0x7CDE3759, 0xCBEE7460, 0x4085F2A7, 0xCE77326E,
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- 0xA6078084, 0x19F8509E, 0xE8EFD855, 0x61D99735,
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- 0xA969A7AA, 0xC50C06C2, 0x5A04ABFC, 0x800BCADC,
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- 0x9E447A2E, 0xC3453484, 0xFDD56705, 0x0E1E9EC9,
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- 0xDB73DBD3, 0x105588CD, 0x675FDA79, 0xE3674340,
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- 0xC5C43465, 0x713E38D8, 0x3D28F89E, 0xF16DFF20,
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- 0x153E21E7, 0x8FB03D4A, 0xE6E39F2B, 0xDB83ADF7
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- },
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- KS2 =
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- {
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- 0xE93D5A68, 0x948140F7, 0xF64C261C, 0x94692934,
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- 0x411520F7, 0x7602D4F7, 0xBCF46B2E, 0xD4A20068,
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- 0xD4082471, 0x3320F46A, 0x43B7D4B7, 0x500061AF,
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- 0x1E39F62E, 0x97244546, 0x14214F74, 0xBF8B8840,
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- 0x4D95FC1D, 0x96B591AF, 0x70F4DDD3, 0x66A02F45,
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- 0xBFBC09EC, 0x03BD9785, 0x7FAC6DD0, 0x31CB8504,
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- 0x96EB27B3, 0x55FD3941, 0xDA2547E6, 0xABCA0A9A,
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- 0x28507825, 0x530429F4, 0x0A2C86DA, 0xE9B66DFB,
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- 0x68DC1462, 0xD7486900, 0x680EC0A4, 0x27A18DEE,
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- 0x4F3FFEA2, 0xE887AD8C, 0xB58CE006, 0x7AF4D6B6,
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- 0xAACE1E7C, 0xD3375FEC, 0xCE78A399, 0x406B2A42,
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- 0x20FE9E35, 0xD9F385B9, 0xEE39D7AB, 0x3B124E8B,
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- 0x1DC9FAF7, 0x4B6D1856, 0x26A36631, 0xEAE397B2,
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- 0x3A6EFA74, 0xDD5B4332, 0x6841E7F7, 0xCA7820FB,
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- 0xFB0AF54E, 0xD8FEB397, 0x454056AC, 0xBA489527,
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- 0x55533A3A, 0x20838D87, 0xFE6BA9B7, 0xD096954B,
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- 0x55A867BC, 0xA1159A58, 0xCCA92963, 0x99E1DB33,
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- 0xA62A4A56, 0x3F3125F9, 0x5EF47E1C, 0x9029317C,
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- 0xFDF8E802, 0x04272F70, 0x80BB155C, 0x05282CE3,
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- 0x95C11548, 0xE4C66D22, 0x48C1133F, 0xC70F86DC,
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- 0x07F9C9EE, 0x41041F0F, 0x404779A4, 0x5D886E17,
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- 0x325F51EB, 0xD59BC0D1, 0xF2BCC18F, 0x41113564,
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- 0x257B7834, 0x602A9C60, 0xDFF8E8A3, 0x1F636C1B,
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- 0x0E12B4C2, 0x02E1329E, 0xAF664FD1, 0xCAD18115,
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- 0x6B2395E0, 0x333E92E1, 0x3B240B62, 0xEEBEB922,
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- 0x85B2A20E, 0xE6BA0D99, 0xDE720C8C, 0x2DA2F728,
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- 0xD0127845, 0x95B794FD, 0x647D0862, 0xE7CCF5F0,
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- 0x5449A36F, 0x877D48FA, 0xC39DFD27, 0xF33E8D1E,
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- 0x0A476341, 0x992EFF74, 0x3A6F6EAB, 0xF4F8FD37,
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- 0xA812DC60, 0xA1EBDDF8, 0x991BE14C, 0xDB6E6B0D,
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- 0xC67B5510, 0x6D672C37, 0x2765D43B, 0xDCD0E804,
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- 0xF1290DC7, 0xCC00FFA3, 0xB5390F92, 0x690FED0B,
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- 0x667B9FFB, 0xCEDB7D9C, 0xA091CF0B, 0xD9155EA3,
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- 0xBB132F88, 0x515BAD24, 0x7B9479BF, 0x763BD6EB,
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- 0x37392EB3, 0xCC115979, 0x8026E297, 0xF42E312D,
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- 0x6842ADA7, 0xC66A2B3B, 0x12754CCC, 0x782EF11C,
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- 0x6A124237, 0xB79251E7, 0x06A1BBE6, 0x4BFB6350,
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- 0x1A6B1018, 0x11CAEDFA, 0x3D25BDD8, 0xE2E1C3C9,
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- 0x44421659, 0x0A121386, 0xD90CEC6E, 0xD5ABEA2A,
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- 0x64AF674E, 0xDA86A85F, 0xBEBFE988, 0x64E4C3FE,
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- 0x9DBC8057, 0xF0F7C086, 0x60787BF8, 0x6003604D,
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- 0xD1FD8346, 0xF6381FB0, 0x7745AE04, 0xD736FCCC,
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- 0x83426B33, 0xF01EAB71, 0xB0804187, 0x3C005E5F,
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- 0x77A057BE, 0xBDE8AE24, 0x55464299, 0xBF582E61,
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- 0x4E58F48F, 0xF2DDFDA2, 0xF474EF38, 0x8789BDC2,
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- 0x5366F9C3, 0xC8B38E74, 0xB475F255, 0x46FCD9B9,
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- 0x7AEB2661, 0x8B1DDF84, 0x846A0E79, 0x915F95E2,
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- 0x466E598E, 0x20B45770, 0x8CD55591, 0xC902DE4C,
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- 0xB90BACE1, 0xBB8205D0, 0x11A86248, 0x7574A99E,
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- 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
|
|
|
- },
|
|
|
- KS3 =
|
|
|
- {
|
|
|
- 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
|
|
|
- };
|
|
|
-
|
|
|
- #endregion
|
|
|
-
|
|
|
- private const int _rounds = 16;
|
|
|
-
|
|
|
- private const int _sboxSk = 256;
|
|
|
-
|
|
|
- private const int _pSize = _rounds + 2;
|
|
|
-
|
|
|
- /// <summary>
|
|
|
+ public sealed class BlowfishCipher : BlockCipher
|
|
|
+ {
|
|
|
+ #region Static reference tables
|
|
|
+
|
|
|
+ private static readonly uint[] KP =
|
|
|
+ {
|
|
|
+ 0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
|
|
|
+ 0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
|
|
|
+ 0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
|
|
|
+ 0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917,
|
|
|
+ 0x9216D5D9, 0x8979FB1B
|
|
|
+ };
|
|
|
+
|
|
|
+ private static readonly uint[] KS0 =
|
|
|
+ {
|
|
|
+ 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 readonly uint[] KS1 =
|
|
|
+ {
|
|
|
+ 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 readonly uint[] KS2 =
|
|
|
+ {
|
|
|
+ 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 readonly uint[] KS3 =
|
|
|
+ {
|
|
|
+ 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
|
|
|
+ };
|
|
|
+
|
|
|
+ #endregion
|
|
|
+
|
|
|
+ private const int Rounds = 16;
|
|
|
+
|
|
|
+ private const int SboxSk = 256;
|
|
|
+
|
|
|
+ private const int PSize = Rounds + 2;
|
|
|
+
|
|
|
+ /// <summary>
|
|
|
/// The s-boxes
|
|
|
/// </summary>
|
|
|
- private readonly uint[] _s0, _s1, _s2, _s3;
|
|
|
+ private readonly uint[] _s0, _s1, _s2, _s3;
|
|
|
|
|
|
/// <summary>
|
|
|
/// The p-array
|
|
|
/// </summary>
|
|
|
- private readonly uint[] _p;
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// Initializes a new instance of the <see cref="BlowfishCipher"/> class.
|
|
|
- /// </summary>
|
|
|
- /// <param name="key">The key.</param>
|
|
|
- /// <param name="mode">The mode.</param>
|
|
|
- /// <param name="padding">The padding.</param>
|
|
|
- /// <exception cref="ArgumentNullException"><paramref name="key"/> is null.</exception>
|
|
|
- /// <exception cref="ArgumentException">Keysize is not valid for this algorithm.</exception>
|
|
|
- public BlowfishCipher(byte[] key, CipherMode mode, CipherPadding padding)
|
|
|
- : base(key, 8, mode, padding)
|
|
|
- {
|
|
|
- var keySize = key.Length * 8;
|
|
|
-
|
|
|
- if (keySize < 1 || keySize > 448)
|
|
|
- throw new ArgumentException(string.Format("KeySize '{0}' is not valid for this algorithm.", keySize));
|
|
|
-
|
|
|
- _s0 = new uint[_sboxSk];
|
|
|
- _s1 = new uint[_sboxSk];
|
|
|
- _s2 = new uint[_sboxSk];
|
|
|
- _s3 = new uint[_sboxSk];
|
|
|
- _p = new uint[_pSize];
|
|
|
-
|
|
|
- SetKey(key);
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// Encrypts the specified region of the input byte array and copies the encrypted data to the specified region of the output byte array.
|
|
|
- /// </summary>
|
|
|
- /// <param name="inputBuffer">The input data to encrypt.</param>
|
|
|
- /// <param name="inputOffset">The offset into the input byte array from which to begin using data.</param>
|
|
|
- /// <param name="inputCount">The number of bytes in the input byte array to use as data.</param>
|
|
|
- /// <param name="outputBuffer">The output to which to write encrypted data.</param>
|
|
|
- /// <param name="outputOffset">The offset into the output byte array from which to begin writing data.</param>
|
|
|
- /// <returns>
|
|
|
- /// The number of bytes encrypted.
|
|
|
- /// </returns>
|
|
|
- public override int EncryptBlock(byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset)
|
|
|
- {
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|
|
- if (inputCount != BlockSize)
|
|
|
- throw new ArgumentException("inputCount");
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|
|
-
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|
|
- uint xl = BigEndianToUInt32(inputBuffer, inputOffset);
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|
|
- uint xr = BigEndianToUInt32(inputBuffer, inputOffset + 4);
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|
|
-
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|
|
- xl ^= _p[0];
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|
|
-
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|
|
- for (int i = 1; i < _rounds; i += 2)
|
|
|
- {
|
|
|
- xr ^= F(xl) ^ _p[i];
|
|
|
- xl ^= F(xr) ^ _p[i + 1];
|
|
|
- }
|
|
|
-
|
|
|
- xr ^= _p[_rounds + 1];
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|
|
-
|
|
|
- UInt32ToBigEndian(xr, outputBuffer, outputOffset);
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|
|
- UInt32ToBigEndian(xl, outputBuffer, outputOffset + 4);
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|
|
-
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|
|
- return BlockSize;
|
|
|
- }
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|
|
-
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|
|
- /// <summary>
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|
|
- /// Decrypts the specified region of the input byte array and copies the decrypted data to the specified region of the output byte array.
|
|
|
- /// </summary>
|
|
|
- /// <param name="inputBuffer">The input data to decrypt.</param>
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|
|
- /// <param name="inputOffset">The offset into the input byte array from which to begin using data.</param>
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|
|
- /// <param name="inputCount">The number of bytes in the input byte array to use as data.</param>
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|
|
- /// <param name="outputBuffer">The output to which to write decrypted data.</param>
|
|
|
- /// <param name="outputOffset">The offset into the output byte array from which to begin writing data.</param>
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|
|
- /// <returns>
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|
|
- /// The number of bytes decrypted.
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|
|
- /// </returns>
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|
|
- public override int DecryptBlock(byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset)
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|
|
- {
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|
|
- if (inputCount != BlockSize)
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|
|
- throw new ArgumentException("inputCount");
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|
|
-
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|
|
- uint xl = BigEndianToUInt32(inputBuffer, inputOffset);
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|
|
- uint xr = BigEndianToUInt32(inputBuffer, inputOffset + 4);
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|
|
-
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|
|
- xl ^= _p[_rounds + 1];
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|
|
-
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|
|
- for (int i = _rounds; i > 0; i -= 2)
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|
|
- {
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|
|
- xr ^= F(xl) ^ _p[i];
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|
|
- xl ^= F(xr) ^ _p[i - 1];
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|
|
- }
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|
|
-
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|
|
- xr ^= _p[0];
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|
|
-
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|
|
- UInt32ToBigEndian(xr, outputBuffer, outputOffset);
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|
|
- UInt32ToBigEndian(xl, outputBuffer, outputOffset + 4);
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|
|
-
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|
|
- return BlockSize;
|
|
|
- }
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|
|
-
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|
|
- private uint F(uint x)
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|
|
- {
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|
|
- return (((_s0[x >> 24] + _s1[(x >> 16) & 0xff]) ^ _s2[(x >> 8) & 0xff]) + _s3[x & 0xff]);
|
|
|
- }
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|
|
-
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|
|
- private void SetKey(byte[] key)
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|
|
- {
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|
|
- /*
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|
|
- * - 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...)
|
|
|
- */
|
|
|
- Buffer.BlockCopy(KS0, 0, _s0, 0, _sboxSk * sizeof(uint));
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|
|
- Buffer.BlockCopy(KS1, 0, _s1, 0, _sboxSk * sizeof(uint));
|
|
|
- Buffer.BlockCopy(KS2, 0, _s2, 0, _sboxSk * sizeof(uint));
|
|
|
- Buffer.BlockCopy(KS3, 0, _s3, 0, _sboxSk * sizeof(uint));
|
|
|
-
|
|
|
- Buffer.BlockCopy(KP, 0, _p, 0, _pSize * sizeof(uint));
|
|
|
-
|
|
|
- /*
|
|
|
- * (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
|
|
|
- */
|
|
|
- int keyLength = key.Length;
|
|
|
- int keyIndex = 0;
|
|
|
-
|
|
|
- for (int i = 0; i < _pSize; i++)
|
|
|
- {
|
|
|
- // Get the 32 bits of the key, in 4 * 8 bit chunks
|
|
|
- uint data = 0x0000000;
|
|
|
- for (int j = 0; j < 4; j++)
|
|
|
- {
|
|
|
- // create a 32 bit block
|
|
|
- data = (data << 8) | (uint)key[keyIndex++];
|
|
|
-
|
|
|
- // 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[_pSize - 2], _p[_pSize - 1], _s0);
|
|
|
- ProcessTable(_s0[_sboxSk - 2], _s0[_sboxSk - 1], _s1);
|
|
|
- ProcessTable(_s1[_sboxSk - 2], _s1[_sboxSk - 1], _s2);
|
|
|
- ProcessTable(_s2[_sboxSk - 2], _s2[_sboxSk - 1], _s3);
|
|
|
- }
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// apply the encryption cycle to each value pair in the table.
|
|
|
- /// </summary>
|
|
|
- /// <param name="xl">The xl.</param>
|
|
|
- /// <param name="xr">The xr.</param>
|
|
|
- /// <param name="table">The table.</param>
|
|
|
- private void ProcessTable(uint xl, uint xr, uint[] table)
|
|
|
- {
|
|
|
- int size = table.Length;
|
|
|
-
|
|
|
- for (int s = 0; s < size; s += 2)
|
|
|
- {
|
|
|
- xl ^= _p[0];
|
|
|
-
|
|
|
- for (int i = 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 readonly uint[] _p;
|
|
|
+
|
|
|
+ /// <summary>
|
|
|
+ /// Initializes a new instance of the <see cref="BlowfishCipher"/> class.
|
|
|
+ /// </summary>
|
|
|
+ /// <param name="key">The key.</param>
|
|
|
+ /// <param name="mode">The mode.</param>
|
|
|
+ /// <param name="padding">The padding.</param>
|
|
|
+ /// <exception cref="ArgumentNullException"><paramref name="key"/> is null.</exception>
|
|
|
+ /// <exception cref="ArgumentException">Keysize is not valid for this algorithm.</exception>
|
|
|
+ public BlowfishCipher(byte[] key, CipherMode mode, CipherPadding padding)
|
|
|
+ : base(key, 8, mode, padding)
|
|
|
+ {
|
|
|
+ var keySize = key.Length * 8;
|
|
|
+
|
|
|
+ if (keySize < 1 || keySize > 448)
|
|
|
+ throw new ArgumentException(string.Format("KeySize '{0}' is not valid for this algorithm.", keySize));
|
|
|
+
|
|
|
+ _s0 = new uint[SboxSk];
|
|
|
+ _s1 = new uint[SboxSk];
|
|
|
+ _s2 = new uint[SboxSk];
|
|
|
+ _s3 = new uint[SboxSk];
|
|
|
+ _p = new uint[PSize];
|
|
|
+
|
|
|
+ SetKey(key);
|
|
|
+ }
|
|
|
+
|
|
|
+ /// <summary>
|
|
|
+ /// Encrypts the specified region of the input byte array and copies the encrypted data to the specified region of the output byte array.
|
|
|
+ /// </summary>
|
|
|
+ /// <param name="inputBuffer">The input data to encrypt.</param>
|
|
|
+ /// <param name="inputOffset">The offset into the input byte array from which to begin using data.</param>
|
|
|
+ /// <param name="inputCount">The number of bytes in the input byte array to use as data.</param>
|
|
|
+ /// <param name="outputBuffer">The output to which to write encrypted data.</param>
|
|
|
+ /// <param name="outputOffset">The offset into the output byte array from which to begin writing data.</param>
|
|
|
+ /// <returns>
|
|
|
+ /// The number of bytes encrypted.
|
|
|
+ /// </returns>
|
|
|
+ public override int EncryptBlock(byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset)
|
|
|
+ {
|
|
|
+ if (inputCount != BlockSize)
|
|
|
+ throw new ArgumentException("inputCount");
|
|
|
+
|
|
|
+ uint xl = BigEndianToUInt32(inputBuffer, inputOffset);
|
|
|
+ uint xr = BigEndianToUInt32(inputBuffer, inputOffset + 4);
|
|
|
+
|
|
|
+ xl ^= _p[0];
|
|
|
+
|
|
|
+ for (int i = 1; i < Rounds; i += 2)
|
|
|
+ {
|
|
|
+ xr ^= F(xl) ^ _p[i];
|
|
|
+ xl ^= F(xr) ^ _p[i + 1];
|
|
|
+ }
|
|
|
+
|
|
|
+ xr ^= _p[Rounds + 1];
|
|
|
+
|
|
|
+ UInt32ToBigEndian(xr, outputBuffer, outputOffset);
|
|
|
+ UInt32ToBigEndian(xl, outputBuffer, outputOffset + 4);
|
|
|
+
|
|
|
+ return BlockSize;
|
|
|
+ }
|
|
|
+
|
|
|
+ /// <summary>
|
|
|
+ /// Decrypts the specified region of the input byte array and copies the decrypted data to the specified region of the output byte array.
|
|
|
+ /// </summary>
|
|
|
+ /// <param name="inputBuffer">The input data to decrypt.</param>
|
|
|
+ /// <param name="inputOffset">The offset into the input byte array from which to begin using data.</param>
|
|
|
+ /// <param name="inputCount">The number of bytes in the input byte array to use as data.</param>
|
|
|
+ /// <param name="outputBuffer">The output to which to write decrypted data.</param>
|
|
|
+ /// <param name="outputOffset">The offset into the output byte array from which to begin writing data.</param>
|
|
|
+ /// <returns>
|
|
|
+ /// The number of bytes decrypted.
|
|
|
+ /// </returns>
|
|
|
+ public override int DecryptBlock(byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset)
|
|
|
+ {
|
|
|
+ if (inputCount != BlockSize)
|
|
|
+ throw new ArgumentException("inputCount");
|
|
|
+
|
|
|
+ uint xl = BigEndianToUInt32(inputBuffer, inputOffset);
|
|
|
+ uint xr = BigEndianToUInt32(inputBuffer, inputOffset + 4);
|
|
|
+
|
|
|
+ xl ^= _p[Rounds + 1];
|
|
|
+
|
|
|
+ for (int i = Rounds; i > 0; i -= 2)
|
|
|
+ {
|
|
|
+ xr ^= F(xl) ^ _p[i];
|
|
|
+ xl ^= F(xr) ^ _p[i - 1];
|
|
|
+ }
|
|
|
+
|
|
|
+ xr ^= _p[0];
|
|
|
+
|
|
|
+ UInt32ToBigEndian(xr, outputBuffer, outputOffset);
|
|
|
+ UInt32ToBigEndian(xl, outputBuffer, outputOffset + 4);
|
|
|
+
|
|
|
+ return BlockSize;
|
|
|
+ }
|
|
|
+
|
|
|
+ private uint F(uint x)
|
|
|
+ {
|
|
|
+ return (((_s0[x >> 24] + _s1[(x >> 16) & 0xff]) ^ _s2[(x >> 8) & 0xff]) + _s3[x & 0xff]);
|
|
|
+ }
|
|
|
+
|
|
|
+ private void SetKey(byte[] key)
|
|
|
+ {
|
|
|
+ /*
|
|
|
+ * - 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...)
|
|
|
+ */
|
|
|
+ Buffer.BlockCopy(KS0, 0, _s0, 0, SboxSk * sizeof(uint));
|
|
|
+ Buffer.BlockCopy(KS1, 0, _s1, 0, SboxSk * sizeof(uint));
|
|
|
+ Buffer.BlockCopy(KS2, 0, _s2, 0, SboxSk * sizeof(uint));
|
|
|
+ Buffer.BlockCopy(KS3, 0, _s3, 0, SboxSk * sizeof(uint));
|
|
|
+ Buffer.BlockCopy(KP, 0, _p, 0, PSize * sizeof(uint));
|
|
|
+
|
|
|
+ /*
|
|
|
+ * (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 = key.Length;
|
|
|
+ var keyIndex = 0;
|
|
|
+
|
|
|
+ for (var i = 0; i < PSize; i++)
|
|
|
+ {
|
|
|
+ // Get the 32 bits of the key, in 4 * 8 bit chunks
|
|
|
+ uint data = 0x0000000;
|
|
|
+ for (var j = 0; j < 4; j++)
|
|
|
+ {
|
|
|
+ // create a 32 bit block
|
|
|
+ data = (data << 8) | key[keyIndex++];
|
|
|
+
|
|
|
+ // 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[PSize - 2], _p[PSize - 1], _s0);
|
|
|
+ ProcessTable(_s0[SboxSk - 2], _s0[SboxSk - 1], _s1);
|
|
|
+ ProcessTable(_s1[SboxSk - 2], _s1[SboxSk - 1], _s2);
|
|
|
+ ProcessTable(_s2[SboxSk - 2], _s2[SboxSk - 1], _s3);
|
|
|
+ }
|
|
|
+
|
|
|
+ /// <summary>
|
|
|
+ /// apply the encryption cycle to each value pair in the table.
|
|
|
+ /// </summary>
|
|
|
+ /// <param name="xl">The xl.</param>
|
|
|
+ /// <param name="xr">The xr.</param>
|
|
|
+ /// <param name="table">The table.</param>
|
|
|
+ private void ProcessTable(uint xl, uint xr, uint[] table)
|
|
|
+ {
|
|
|
+ var size = table.Length;
|
|
|
+
|
|
|
+ for (var s = 0; s < size; s += 2)
|
|
|
+ {
|
|
|
+ xl ^= _p[0];
|
|
|
+
|
|
|
+ for (var i = 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];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
}
|
drieseng