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