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local Stream = require("lockbox.util.stream"); |
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local Array = require("lockbox.util.array"); |
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local Bit = require("lockbox.util.bit"); |
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local Math = require("math"); |
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local AND = Bit.band; |
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local OR = Bit.bor; |
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local NOT = Bit.bnot; |
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local XOR = Bit.bxor; |
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local LROT = Bit.lrotate; |
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local RROT = Bit.rrotate; |
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local LSHIFT = Bit.lshift; |
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local RSHIFT = Bit.rshift; |
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local SBOX = { |
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[0]=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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local ISBOX = { |
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[0]=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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local ROW_SHIFT = { 1, 6, 11, 16, 5, 10, 15, 4, 9, 14, 3, 8, 13, 2, 7, 12,}; |
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local IROW_SHIFT = { 1, 14, 11, 8, 5, 2, 15, 12, 9, 6, 3, 16, 13, 10, 7, 4,}; |
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local ETABLE = { |
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[0]=0x01, 0x03, 0x05, 0x0F, 0x11, 0x33, 0x55, 0xFF, 0x1A, 0x2E, 0x72, 0x96, 0xA1, 0xF8, 0x13, 0x35, |
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0x5F, 0xE1, 0x38, 0x48, 0xD8, 0x73, 0x95, 0xA4, 0xF7, 0x02, 0x06, 0x0A, 0x1E, 0x22, 0x66, 0xAA, |
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0xE5, 0x34, 0x5C, 0xE4, 0x37, 0x59, 0xEB, 0x26, 0x6A, 0xBE, 0xD9, 0x70, 0x90, 0xAB, 0xE6, 0x31, |
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0x53, 0xF5, 0x04, 0x0C, 0x14, 0x3C, 0x44, 0xCC, 0x4F, 0xD1, 0x68, 0xB8, 0xD3, 0x6E, 0xB2, 0xCD, |
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0x4C, 0xD4, 0x67, 0xA9, 0xE0, 0x3B, 0x4D, 0xD7, 0x62, 0xA6, 0xF1, 0x08, 0x18, 0x28, 0x78, 0x88, |
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0x83, 0x9E, 0xB9, 0xD0, 0x6B, 0xBD, 0xDC, 0x7F, 0x81, 0x98, 0xB3, 0xCE, 0x49, 0xDB, 0x76, 0x9A, |
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0xB5, 0xC4, 0x57, 0xF9, 0x10, 0x30, 0x50, 0xF0, 0x0B, 0x1D, 0x27, 0x69, 0xBB, 0xD6, 0x61, 0xA3, |
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0xFE, 0x19, 0x2B, 0x7D, 0x87, 0x92, 0xAD, 0xEC, 0x2F, 0x71, 0x93, 0xAE, 0xE9, 0x20, 0x60, 0xA0, |
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0xFB, 0x16, 0x3A, 0x4E, 0xD2, 0x6D, 0xB7, 0xC2, 0x5D, 0xE7, 0x32, 0x56, 0xFA, 0x15, 0x3F, 0x41, |
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0xC3, 0x5E, 0xE2, 0x3D, 0x47, 0xC9, 0x40, 0xC0, 0x5B, 0xED, 0x2C, 0x74, 0x9C, 0xBF, 0xDA, 0x75, |
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0x9F, 0xBA, 0xD5, 0x64, 0xAC, 0xEF, 0x2A, 0x7E, 0x82, 0x9D, 0xBC, 0xDF, 0x7A, 0x8E, 0x89, 0x80, |
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0x9B, 0xB6, 0xC1, 0x58, 0xE8, 0x23, 0x65, 0xAF, 0xEA, 0x25, 0x6F, 0xB1, 0xC8, 0x43, 0xC5, 0x54, |
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0xFC, 0x1F, 0x21, 0x63, 0xA5, 0xF4, 0x07, 0x09, 0x1B, 0x2D, 0x77, 0x99, 0xB0, 0xCB, 0x46, 0xCA, |
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0x45, 0xCF, 0x4A, 0xDE, 0x79, 0x8B, 0x86, 0x91, 0xA8, 0xE3, 0x3E, 0x42, 0xC6, 0x51, 0xF3, 0x0E, |
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0x12, 0x36, 0x5A, 0xEE, 0x29, 0x7B, 0x8D, 0x8C, 0x8F, 0x8A, 0x85, 0x94, 0xA7, 0xF2, 0x0D, 0x17, |
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0x39, 0x4B, 0xDD, 0x7C, 0x84, 0x97, 0xA2, 0xFD, 0x1C, 0x24, 0x6C, 0xB4, 0xC7, 0x52, 0xF6, 0x01}; |
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local LTABLE = { |
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[0]=0x00, 0x00, 0x19, 0x01, 0x32, 0x02, 0x1A, 0xC6, 0x4B, 0xC7, 0x1B, 0x68, 0x33, 0xEE, 0xDF, 0x03, |
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0x64, 0x04, 0xE0, 0x0E, 0x34, 0x8D, 0x81, 0xEF, 0x4C, 0x71, 0x08, 0xC8, 0xF8, 0x69, 0x1C, 0xC1, |
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0x7D, 0xC2, 0x1D, 0xB5, 0xF9, 0xB9, 0x27, 0x6A, 0x4D, 0xE4, 0xA6, 0x72, 0x9A, 0xC9, 0x09, 0x78, |
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0x65, 0x2F, 0x8A, 0x05, 0x21, 0x0F, 0xE1, 0x24, 0x12, 0xF0, 0x82, 0x45, 0x35, 0x93, 0xDA, 0x8E, |
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0x96, 0x8F, 0xDB, 0xBD, 0x36, 0xD0, 0xCE, 0x94, 0x13, 0x5C, 0xD2, 0xF1, 0x40, 0x46, 0x83, 0x38, |
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0x66, 0xDD, 0xFD, 0x30, 0xBF, 0x06, 0x8B, 0x62, 0xB3, 0x25, 0xE2, 0x98, 0x22, 0x88, 0x91, 0x10, |
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0x7E, 0x6E, 0x48, 0xC3, 0xA3, 0xB6, 0x1E, 0x42, 0x3A, 0x6B, 0x28, 0x54, 0xFA, 0x85, 0x3D, 0xBA, |
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0x2B, 0x79, 0x0A, 0x15, 0x9B, 0x9F, 0x5E, 0xCA, 0x4E, 0xD4, 0xAC, 0xE5, 0xF3, 0x73, 0xA7, 0x57, |
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0xAF, 0x58, 0xA8, 0x50, 0xF4, 0xEA, 0xD6, 0x74, 0x4F, 0xAE, 0xE9, 0xD5, 0xE7, 0xE6, 0xAD, 0xE8, |
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0x2C, 0xD7, 0x75, 0x7A, 0xEB, 0x16, 0x0B, 0xF5, 0x59, 0xCB, 0x5F, 0xB0, 0x9C, 0xA9, 0x51, 0xA0, |
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0x7F, 0x0C, 0xF6, 0x6F, 0x17, 0xC4, 0x49, 0xEC, 0xD8, 0x43, 0x1F, 0x2D, 0xA4, 0x76, 0x7B, 0xB7, |
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0xCC, 0xBB, 0x3E, 0x5A, 0xFB, 0x60, 0xB1, 0x86, 0x3B, 0x52, 0xA1, 0x6C, 0xAA, 0x55, 0x29, 0x9D, |
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0x97, 0xB2, 0x87, 0x90, 0x61, 0xBE, 0xDC, 0xFC, 0xBC, 0x95, 0xCF, 0xCD, 0x37, 0x3F, 0x5B, 0xD1, |
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0x53, 0x39, 0x84, 0x3C, 0x41, 0xA2, 0x6D, 0x47, 0x14, 0x2A, 0x9E, 0x5D, 0x56, 0xF2, 0xD3, 0xAB, |
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0x44, 0x11, 0x92, 0xD9, 0x23, 0x20, 0x2E, 0x89, 0xB4, 0x7C, 0xB8, 0x26, 0x77, 0x99, 0xE3, 0xA5, |
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0x67, 0x4A, 0xED, 0xDE, 0xC5, 0x31, 0xFE, 0x18, 0x0D, 0x63, 0x8C, 0x80, 0xC0, 0xF7, 0x70, 0x07}; |
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local MIXTABLE = { |
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0x02, 0x03, 0x01, 0x01, |
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0x01, 0x02, 0x03, 0x01, |
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0x01, 0x01, 0x02, 0x03, |
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0x03, 0x01, 0x01, 0x02}; |
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local IMIXTABLE = { |
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0x0E, 0x0B, 0x0D, 0x09, |
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0x09, 0x0E, 0x0B, 0x0D, |
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0x0D, 0x09, 0x0E, 0x0B, |
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0x0B, 0x0D, 0x09, 0x0E}; |
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local RCON = { |
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[0] = 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, |
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0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, |
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0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, |
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0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, |
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0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, |
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0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, |
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0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, |
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0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, |
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0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, |
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0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, |
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0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, |
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0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, |
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0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, |
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0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, |
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0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, |
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0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d}; |
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local GMUL = function(A,B) |
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if(A == 0x01) then return B; end |
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if(B == 0x01) then return A; end |
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if(A == 0x00) then return 0; end |
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if(B == 0x00) then return 0; end |
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local LA = LTABLE[A]; |
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local LB = LTABLE[B]; |
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local sum = LA + LB; |
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if (sum > 0xFF) then sum = sum - 0xFF; end |
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return ETABLE[sum]; |
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end |
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local byteSub = Array.substitute; |
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local shiftRow = Array.permute; |
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local mixCol = function(i,mix) |
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local out = {}; |
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local a,b,c,d; |
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a = GMUL(i[ 1],mix[ 1]); |
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b = GMUL(i[ 2],mix[ 2]); |
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c = GMUL(i[ 3],mix[ 3]); |
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d = GMUL(i[ 4],mix[ 4]); |
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out[ 1] = XOR(XOR(a,b),XOR(c,d)); |
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a = GMUL(i[ 1],mix[ 5]); |
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b = GMUL(i[ 2],mix[ 6]); |
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c = GMUL(i[ 3],mix[ 7]); |
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d = GMUL(i[ 4],mix[ 8]); |
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out[ 2] = XOR(XOR(a,b),XOR(c,d)); |
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a = GMUL(i[ 1],mix[ 9]); |
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b = GMUL(i[ 2],mix[10]); |
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c = GMUL(i[ 3],mix[11]); |
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d = GMUL(i[ 4],mix[12]); |
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out[ 3] = XOR(XOR(a,b),XOR(c,d)); |
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a = GMUL(i[ 1],mix[13]); |
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b = GMUL(i[ 2],mix[14]); |
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c = GMUL(i[ 3],mix[15]); |
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d = GMUL(i[ 4],mix[16]); |
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out[ 4] = XOR(XOR(a,b),XOR(c,d)); |
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a = GMUL(i[ 5],mix[ 1]); |
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b = GMUL(i[ 6],mix[ 2]); |
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c = GMUL(i[ 7],mix[ 3]); |
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d = GMUL(i[ 8],mix[ 4]); |
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out[ 5] = XOR(XOR(a,b),XOR(c,d)); |
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a = GMUL(i[ 5],mix[ 5]); |
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b = GMUL(i[ 6],mix[ 6]); |
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c = GMUL(i[ 7],mix[ 7]); |
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d = GMUL(i[ 8],mix[ 8]); |
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out[ 6] = XOR(XOR(a,b),XOR(c,d)); |
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a = GMUL(i[ 5],mix[ 9]); |
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b = GMUL(i[ 6],mix[10]); |
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c = GMUL(i[ 7],mix[11]); |
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d = GMUL(i[ 8],mix[12]); |
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out[ 7] = XOR(XOR(a,b),XOR(c,d)); |
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a = GMUL(i[ 5],mix[13]); |
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b = GMUL(i[ 6],mix[14]); |
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c = GMUL(i[ 7],mix[15]); |
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|
d = GMUL(i[ 8],mix[16]); |
|
|
out[ 8] = XOR(XOR(a,b),XOR(c,d)); |
|
|
|
|
|
|
|
|
a = GMUL(i[ 9],mix[ 1]); |
|
|
b = GMUL(i[10],mix[ 2]); |
|
|
c = GMUL(i[11],mix[ 3]); |
|
|
d = GMUL(i[12],mix[ 4]); |
|
|
out[ 9] = XOR(XOR(a,b),XOR(c,d)); |
|
|
a = GMUL(i[ 9],mix[ 5]); |
|
|
b = GMUL(i[10],mix[ 6]); |
|
|
c = GMUL(i[11],mix[ 7]); |
|
|
d = GMUL(i[12],mix[ 8]); |
|
|
out[10] = XOR(XOR(a,b),XOR(c,d)); |
|
|
a = GMUL(i[ 9],mix[ 9]); |
|
|
b = GMUL(i[10],mix[10]); |
|
|
c = GMUL(i[11],mix[11]); |
|
|
d = GMUL(i[12],mix[12]); |
|
|
out[11] = XOR(XOR(a,b),XOR(c,d)); |
|
|
a = GMUL(i[ 9],mix[13]); |
|
|
b = GMUL(i[10],mix[14]); |
|
|
c = GMUL(i[11],mix[15]); |
|
|
d = GMUL(i[12],mix[16]); |
|
|
out[12] = XOR(XOR(a,b),XOR(c,d)); |
|
|
|
|
|
|
|
|
a = GMUL(i[13],mix[ 1]); |
|
|
b = GMUL(i[14],mix[ 2]); |
|
|
c = GMUL(i[15],mix[ 3]); |
|
|
d = GMUL(i[16],mix[ 4]); |
|
|
out[13] = XOR(XOR(a,b),XOR(c,d)); |
|
|
a = GMUL(i[13],mix[ 5]); |
|
|
b = GMUL(i[14],mix[ 6]); |
|
|
c = GMUL(i[15],mix[ 7]); |
|
|
d = GMUL(i[16],mix[ 8]); |
|
|
out[14] = XOR(XOR(a,b),XOR(c,d)); |
|
|
a = GMUL(i[13],mix[ 9]); |
|
|
b = GMUL(i[14],mix[10]); |
|
|
c = GMUL(i[15],mix[11]); |
|
|
d = GMUL(i[16],mix[12]); |
|
|
out[15] = XOR(XOR(a,b),XOR(c,d)); |
|
|
a = GMUL(i[13],mix[13]); |
|
|
b = GMUL(i[14],mix[14]); |
|
|
c = GMUL(i[15],mix[15]); |
|
|
d = GMUL(i[16],mix[16]); |
|
|
out[16] = XOR(XOR(a,b),XOR(c,d)); |
|
|
|
|
|
return out; |
|
|
end |
|
|
|
|
|
local keyRound = function(key,round) |
|
|
local out = {}; |
|
|
|
|
|
out[ 1] = XOR(key[ 1],XOR(SBOX[key[14]],RCON[round])); |
|
|
out[ 2] = XOR(key[ 2],SBOX[key[15]]); |
|
|
out[ 3] = XOR(key[ 3],SBOX[key[16]]); |
|
|
out[ 4] = XOR(key[ 4],SBOX[key[13]]); |
|
|
|
|
|
out[ 5] = XOR(out[ 1],key[ 5]); |
|
|
out[ 6] = XOR(out[ 2],key[ 6]); |
|
|
out[ 7] = XOR(out[ 3],key[ 7]); |
|
|
out[ 8] = XOR(out[ 4],key[ 8]); |
|
|
|
|
|
out[ 9] = XOR(out[ 5],key[ 9]); |
|
|
out[10] = XOR(out[ 6],key[10]); |
|
|
out[11] = XOR(out[ 7],key[11]); |
|
|
out[12] = XOR(out[ 8],key[12]); |
|
|
|
|
|
out[13] = XOR(out[ 9],key[13]); |
|
|
out[14] = XOR(out[10],key[14]); |
|
|
out[15] = XOR(out[11],key[15]); |
|
|
out[16] = XOR(out[12],key[16]); |
|
|
|
|
|
return out; |
|
|
end |
|
|
|
|
|
local keyExpand = function(key) |
|
|
local keys = {}; |
|
|
|
|
|
local temp = key; |
|
|
|
|
|
keys[1] = temp; |
|
|
|
|
|
for i=1,10 do |
|
|
temp = keyRound(temp,i); |
|
|
keys[i+1] = temp; |
|
|
end |
|
|
|
|
|
return keys; |
|
|
|
|
|
end |
|
|
|
|
|
local addKey = Array.XOR; |
|
|
|
|
|
|
|
|
|
|
|
local AES = {}; |
|
|
|
|
|
AES.blockSize = 16; |
|
|
|
|
|
AES.encrypt = function(key,block) |
|
|
|
|
|
local key = keyExpand(key); |
|
|
|
|
|
|
|
|
block = addKey(block,key[1]); |
|
|
|
|
|
|
|
|
block = byteSub(block,SBOX); |
|
|
block = shiftRow(block,ROW_SHIFT); |
|
|
block = mixCol(block,MIXTABLE); |
|
|
block = addKey(block,key[2]); |
|
|
|
|
|
|
|
|
block = byteSub(block,SBOX); |
|
|
block = shiftRow(block,ROW_SHIFT); |
|
|
block = mixCol(block,MIXTABLE); |
|
|
block = addKey(block,key[3]); |
|
|
|
|
|
|
|
|
block = byteSub(block,SBOX); |
|
|
block = shiftRow(block,ROW_SHIFT); |
|
|
block = mixCol(block,MIXTABLE); |
|
|
block = addKey(block,key[4]); |
|
|
|
|
|
|
|
|
block = byteSub(block,SBOX); |
|
|
block = shiftRow(block,ROW_SHIFT); |
|
|
block = mixCol(block,MIXTABLE); |
|
|
block = addKey(block,key[5]); |
|
|
|
|
|
|
|
|
block = byteSub(block,SBOX); |
|
|
block = shiftRow(block,ROW_SHIFT); |
|
|
block = mixCol(block,MIXTABLE); |
|
|
block = addKey(block,key[6]); |
|
|
|
|
|
|
|
|
block = byteSub(block,SBOX); |
|
|
block = shiftRow(block,ROW_SHIFT); |
|
|
block = mixCol(block,MIXTABLE); |
|
|
block = addKey(block,key[7]); |
|
|
|
|
|
|
|
|
block = byteSub(block,SBOX); |
|
|
block = shiftRow(block,ROW_SHIFT); |
|
|
block = mixCol(block,MIXTABLE); |
|
|
block = addKey(block,key[8]); |
|
|
|
|
|
|
|
|
block = byteSub(block,SBOX); |
|
|
block = shiftRow(block,ROW_SHIFT); |
|
|
block = mixCol(block,MIXTABLE); |
|
|
block = addKey(block,key[9]); |
|
|
|
|
|
|
|
|
block = byteSub(block,SBOX); |
|
|
block = shiftRow(block,ROW_SHIFT); |
|
|
block = mixCol(block,MIXTABLE); |
|
|
block = addKey(block,key[10]); |
|
|
|
|
|
|
|
|
block = byteSub(block,SBOX); |
|
|
block = shiftRow(block,ROW_SHIFT); |
|
|
block = addKey(block,key[11]); |
|
|
|
|
|
return block; |
|
|
|
|
|
end |
|
|
|
|
|
AES.decrypt = function(key,block) |
|
|
|
|
|
local key = keyExpand(key); |
|
|
|
|
|
|
|
|
block = addKey(block,key[11]); |
|
|
|
|
|
|
|
|
block = shiftRow(block,IROW_SHIFT); |
|
|
block = byteSub(block,ISBOX); |
|
|
block = addKey(block,key[10]); |
|
|
block = mixCol(block,IMIXTABLE); |
|
|
|
|
|
|
|
|
block = shiftRow(block,IROW_SHIFT); |
|
|
block = byteSub(block,ISBOX); |
|
|
block = addKey(block,key[9]); |
|
|
block = mixCol(block,IMIXTABLE); |
|
|
|
|
|
|
|
|
block = shiftRow(block,IROW_SHIFT); |
|
|
block = byteSub(block,ISBOX); |
|
|
block = addKey(block,key[8]); |
|
|
block = mixCol(block,IMIXTABLE); |
|
|
|
|
|
|
|
|
block = shiftRow(block,IROW_SHIFT); |
|
|
block = byteSub(block,ISBOX); |
|
|
block = addKey(block,key[7]); |
|
|
block = mixCol(block,IMIXTABLE); |
|
|
|
|
|
|
|
|
block = shiftRow(block,IROW_SHIFT); |
|
|
block = byteSub(block,ISBOX); |
|
|
block = addKey(block,key[6]); |
|
|
block = mixCol(block,IMIXTABLE); |
|
|
|
|
|
|
|
|
block = shiftRow(block,IROW_SHIFT); |
|
|
block = byteSub(block,ISBOX); |
|
|
block = addKey(block,key[5]); |
|
|
block = mixCol(block,IMIXTABLE); |
|
|
|
|
|
|
|
|
block = shiftRow(block,IROW_SHIFT); |
|
|
block = byteSub(block,ISBOX); |
|
|
block = addKey(block,key[4]); |
|
|
block = mixCol(block,IMIXTABLE); |
|
|
|
|
|
|
|
|
block = shiftRow(block,IROW_SHIFT); |
|
|
block = byteSub(block,ISBOX); |
|
|
block = addKey(block,key[3]); |
|
|
block = mixCol(block,IMIXTABLE); |
|
|
|
|
|
|
|
|
block = shiftRow(block,IROW_SHIFT); |
|
|
block = byteSub(block,ISBOX); |
|
|
block = addKey(block,key[2]); |
|
|
block = mixCol(block,IMIXTABLE); |
|
|
|
|
|
|
|
|
block = shiftRow(block,IROW_SHIFT); |
|
|
block = byteSub(block,ISBOX); |
|
|
block = addKey(block,key[1]); |
|
|
|
|
|
return block; |
|
|
end |
|
|
|
|
|
return AES; |
|
|
|
