1 module crypto.aes; 2 3 import std.conv : to; 4 import std.bitmanip; 5 import std.exception : enforce; 6 7 public import crypto.padding; 8 9 alias AES128 = AES!(4, 4, 10); 10 alias AES192 = AES!(4, 6, 12); 11 alias AES256 = AES!(4, 8, 14); 12 13 class AES(uint Nb, uint Nk, uint Nr) if ((Nb == 4 && Nk == 4 && Nr == 10) || (Nb == 4 && Nk == 6 && Nr == 12) || (Nb == 4 && Nk == 8 && Nr == 14)) 14 { 15 private static const ubyte[] sbox = [ 16 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76, 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 17 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15, 18 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75, 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 19 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf, 20 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8, 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 21 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73, 22 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb, 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 23 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08, 24 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a, 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 25 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf, 26 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 27 ]; 28 29 private static const ubyte[] isbox = [ 30 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb, 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 31 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e, 32 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25, 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 33 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92, 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84, 34 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06, 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 35 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73, 36 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e, 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 37 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b, 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4, 38 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f, 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 39 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef, 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61, 40 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d 41 ]; 42 43 private static const uint[] t1 = [ 44 0xa56363c6, 0x847c7cf8, 0x997777ee, 0x8d7b7bf6, 0x0df2f2ff, 0xbd6b6bd6, 0xb16f6fde, 0x54c5c591, 0x50303060, 0x03010102, 45 0xa96767ce, 0x7d2b2b56, 0x19fefee7, 0x62d7d7b5, 0xe6abab4d, 0x9a7676ec, 0x45caca8f, 0x9d82821f, 0x40c9c989, 0x877d7dfa, 46 0x15fafaef, 0xeb5959b2, 0xc947478e, 0x0bf0f0fb, 0xecadad41, 0x67d4d4b3, 0xfda2a25f, 0xeaafaf45, 0xbf9c9c23, 0xf7a4a453, 47 0x967272e4, 0x5bc0c09b, 0xc2b7b775, 0x1cfdfde1, 0xae93933d, 0x6a26264c, 0x5a36366c, 0x413f3f7e, 0x02f7f7f5, 0x4fcccc83, 48 0x5c343468, 0xf4a5a551, 0x34e5e5d1, 0x08f1f1f9, 0x937171e2, 0x73d8d8ab, 0x53313162, 0x3f15152a, 0x0c040408, 0x52c7c795, 49 0x65232346, 0x5ec3c39d, 0x28181830, 0xa1969637, 0x0f05050a, 0xb59a9a2f, 0x0907070e, 0x36121224, 0x9b80801b, 0x3de2e2df, 50 0x26ebebcd, 0x6927274e, 0xcdb2b27f, 0x9f7575ea, 0x1b090912, 0x9e83831d, 0x742c2c58, 0x2e1a1a34, 0x2d1b1b36, 0xb26e6edc, 51 0xee5a5ab4, 0xfba0a05b, 0xf65252a4, 0x4d3b3b76, 0x61d6d6b7, 0xceb3b37d, 0x7b292952, 0x3ee3e3dd, 0x712f2f5e, 0x97848413, 52 0xf55353a6, 0x68d1d1b9, 0x00000000, 0x2cededc1, 0x60202040, 0x1ffcfce3, 0xc8b1b179, 0xed5b5bb6, 0xbe6a6ad4, 0x46cbcb8d, 53 0xd9bebe67, 0x4b393972, 0xde4a4a94, 0xd44c4c98, 0xe85858b0, 0x4acfcf85, 0x6bd0d0bb, 0x2aefefc5, 0xe5aaaa4f, 0x16fbfbed, 54 0xc5434386, 0xd74d4d9a, 0x55333366, 0x94858511, 0xcf45458a, 0x10f9f9e9, 0x06020204, 0x817f7ffe, 0xf05050a0, 0x443c3c78, 55 0xba9f9f25, 0xe3a8a84b, 0xf35151a2, 0xfea3a35d, 0xc0404080, 0x8a8f8f05, 0xad92923f, 0xbc9d9d21, 0x48383870, 0x04f5f5f1, 56 0xdfbcbc63, 0xc1b6b677, 0x75dadaaf, 0x63212142, 0x30101020, 0x1affffe5, 0x0ef3f3fd, 0x6dd2d2bf, 0x4ccdcd81, 0x140c0c18, 57 0x35131326, 0x2fececc3, 0xe15f5fbe, 0xa2979735, 0xcc444488, 0x3917172e, 0x57c4c493, 0xf2a7a755, 0x827e7efc, 0x473d3d7a, 58 0xac6464c8, 0xe75d5dba, 0x2b191932, 0x957373e6, 0xa06060c0, 0x98818119, 0xd14f4f9e, 0x7fdcdca3, 0x66222244, 0x7e2a2a54, 59 0xab90903b, 0x8388880b, 0xca46468c, 0x29eeeec7, 0xd3b8b86b, 0x3c141428, 0x79dedea7, 0xe25e5ebc, 0x1d0b0b16, 0x76dbdbad, 60 0x3be0e0db, 0x56323264, 0x4e3a3a74, 0x1e0a0a14, 0xdb494992, 0x0a06060c, 0x6c242448, 0xe45c5cb8, 0x5dc2c29f, 0x6ed3d3bd, 61 0xefacac43, 0xa66262c4, 0xa8919139, 0xa4959531, 0x37e4e4d3, 0x8b7979f2, 0x32e7e7d5, 0x43c8c88b, 0x5937376e, 0xb76d6dda, 62 0x8c8d8d01, 0x64d5d5b1, 0xd24e4e9c, 0xe0a9a949, 0xb46c6cd8, 0xfa5656ac, 0x07f4f4f3, 0x25eaeacf, 0xaf6565ca, 0x8e7a7af4, 63 0xe9aeae47, 0x18080810, 0xd5baba6f, 0x887878f0, 0x6f25254a, 0x722e2e5c, 0x241c1c38, 0xf1a6a657, 0xc7b4b473, 0x51c6c697, 64 0x23e8e8cb, 0x7cdddda1, 0x9c7474e8, 0x211f1f3e, 0xdd4b4b96, 0xdcbdbd61, 0x868b8b0d, 0x858a8a0f, 0x907070e0, 0x423e3e7c, 65 0xc4b5b571, 0xaa6666cc, 0xd8484890, 0x05030306, 0x01f6f6f7, 0x120e0e1c, 0xa36161c2, 0x5f35356a, 0xf95757ae, 0xd0b9b969, 66 0x91868617, 0x58c1c199, 0x271d1d3a, 0xb99e9e27, 0x38e1e1d9, 0x13f8f8eb, 0xb398982b, 0x33111122, 0xbb6969d2, 0x70d9d9a9, 67 0x898e8e07, 0xa7949433, 0xb69b9b2d, 0x221e1e3c, 0x92878715, 0x20e9e9c9, 0x49cece87, 0xff5555aa, 0x78282850, 0x7adfdfa5, 68 0x8f8c8c03, 0xf8a1a159, 0x80898909, 0x170d0d1a, 0xdabfbf65, 0x31e6e6d7, 0xc6424284, 0xb86868d0, 0xc3414182, 0xb0999929, 69 0x772d2d5a, 0x110f0f1e, 0xcbb0b07b, 0xfc5454a8, 0xd6bbbb6d, 0x3a16162c, 70 ]; 71 72 private static const uint[] t2 = [ 73 0x6363c6a5, 0x7c7cf884, 0x7777ee99, 0x7b7bf68d, 0xf2f2ff0d, 0x6b6bd6bd, 0x6f6fdeb1, 0xc5c59154, 0x30306050, 0x01010203, 74 0x6767cea9, 0x2b2b567d, 0xfefee719, 0xd7d7b562, 0xabab4de6, 0x7676ec9a, 0xcaca8f45, 0x82821f9d, 0xc9c98940, 0x7d7dfa87, 75 0xfafaef15, 0x5959b2eb, 0x47478ec9, 0xf0f0fb0b, 0xadad41ec, 0xd4d4b367, 0xa2a25ffd, 0xafaf45ea, 0x9c9c23bf, 0xa4a453f7, 76 0x7272e496, 0xc0c09b5b, 0xb7b775c2, 0xfdfde11c, 0x93933dae, 0x26264c6a, 0x36366c5a, 0x3f3f7e41, 0xf7f7f502, 0xcccc834f, 77 0x3434685c, 0xa5a551f4, 0xe5e5d134, 0xf1f1f908, 0x7171e293, 0xd8d8ab73, 0x31316253, 0x15152a3f, 0x0404080c, 0xc7c79552, 78 0x23234665, 0xc3c39d5e, 0x18183028, 0x969637a1, 0x05050a0f, 0x9a9a2fb5, 0x07070e09, 0x12122436, 0x80801b9b, 0xe2e2df3d, 79 0xebebcd26, 0x27274e69, 0xb2b27fcd, 0x7575ea9f, 0x0909121b, 0x83831d9e, 0x2c2c5874, 0x1a1a342e, 0x1b1b362d, 0x6e6edcb2, 80 0x5a5ab4ee, 0xa0a05bfb, 0x5252a4f6, 0x3b3b764d, 0xd6d6b761, 0xb3b37dce, 0x2929527b, 0xe3e3dd3e, 0x2f2f5e71, 0x84841397, 81 0x5353a6f5, 0xd1d1b968, 0x00000000, 0xededc12c, 0x20204060, 0xfcfce31f, 0xb1b179c8, 0x5b5bb6ed, 0x6a6ad4be, 0xcbcb8d46, 82 0xbebe67d9, 0x3939724b, 0x4a4a94de, 0x4c4c98d4, 0x5858b0e8, 0xcfcf854a, 0xd0d0bb6b, 0xefefc52a, 0xaaaa4fe5, 0xfbfbed16, 83 0x434386c5, 0x4d4d9ad7, 0x33336655, 0x85851194, 0x45458acf, 0xf9f9e910, 0x02020406, 0x7f7ffe81, 0x5050a0f0, 0x3c3c7844, 84 0x9f9f25ba, 0xa8a84be3, 0x5151a2f3, 0xa3a35dfe, 0x404080c0, 0x8f8f058a, 0x92923fad, 0x9d9d21bc, 0x38387048, 0xf5f5f104, 85 0xbcbc63df, 0xb6b677c1, 0xdadaaf75, 0x21214263, 0x10102030, 0xffffe51a, 0xf3f3fd0e, 0xd2d2bf6d, 0xcdcd814c, 0x0c0c1814, 86 0x13132635, 0xececc32f, 0x5f5fbee1, 0x979735a2, 0x444488cc, 0x17172e39, 0xc4c49357, 0xa7a755f2, 0x7e7efc82, 0x3d3d7a47, 87 0x6464c8ac, 0x5d5dbae7, 0x1919322b, 0x7373e695, 0x6060c0a0, 0x81811998, 0x4f4f9ed1, 0xdcdca37f, 0x22224466, 0x2a2a547e, 88 0x90903bab, 0x88880b83, 0x46468cca, 0xeeeec729, 0xb8b86bd3, 0x1414283c, 0xdedea779, 0x5e5ebce2, 0x0b0b161d, 0xdbdbad76, 89 0xe0e0db3b, 0x32326456, 0x3a3a744e, 0x0a0a141e, 0x494992db, 0x06060c0a, 0x2424486c, 0x5c5cb8e4, 0xc2c29f5d, 0xd3d3bd6e, 90 0xacac43ef, 0x6262c4a6, 0x919139a8, 0x959531a4, 0xe4e4d337, 0x7979f28b, 0xe7e7d532, 0xc8c88b43, 0x37376e59, 0x6d6ddab7, 91 0x8d8d018c, 0xd5d5b164, 0x4e4e9cd2, 0xa9a949e0, 0x6c6cd8b4, 0x5656acfa, 0xf4f4f307, 0xeaeacf25, 0x6565caaf, 0x7a7af48e, 92 0xaeae47e9, 0x08081018, 0xbaba6fd5, 0x7878f088, 0x25254a6f, 0x2e2e5c72, 0x1c1c3824, 0xa6a657f1, 0xb4b473c7, 0xc6c69751, 93 0xe8e8cb23, 0xdddda17c, 0x7474e89c, 0x1f1f3e21, 0x4b4b96dd, 0xbdbd61dc, 0x8b8b0d86, 0x8a8a0f85, 0x7070e090, 0x3e3e7c42, 94 0xb5b571c4, 0x6666ccaa, 0x484890d8, 0x03030605, 0xf6f6f701, 0x0e0e1c12, 0x6161c2a3, 0x35356a5f, 0x5757aef9, 0xb9b969d0, 95 0x86861791, 0xc1c19958, 0x1d1d3a27, 0x9e9e27b9, 0xe1e1d938, 0xf8f8eb13, 0x98982bb3, 0x11112233, 0x6969d2bb, 0xd9d9a970, 96 0x8e8e0789, 0x949433a7, 0x9b9b2db6, 0x1e1e3c22, 0x87871592, 0xe9e9c920, 0xcece8749, 0x5555aaff, 0x28285078, 0xdfdfa57a, 97 0x8c8c038f, 0xa1a159f8, 0x89890980, 0x0d0d1a17, 0xbfbf65da, 0xe6e6d731, 0x424284c6, 0x6868d0b8, 0x414182c3, 0x999929b0, 98 0x2d2d5a77, 0x0f0f1e11, 0xb0b07bcb, 0x5454a8fc, 0xbbbb6dd6, 0x16162c3a, 99 ]; 100 101 private static const uint[] t3 = [ 102 0x63c6a563, 0x7cf8847c, 0x77ee9977, 0x7bf68d7b, 0xf2ff0df2, 0x6bd6bd6b, 0x6fdeb16f, 0xc59154c5, 0x30605030, 0x01020301, 103 0x67cea967, 0x2b567d2b, 0xfee719fe, 0xd7b562d7, 0xab4de6ab, 0x76ec9a76, 0xca8f45ca, 0x821f9d82, 0xc98940c9, 0x7dfa877d, 104 0xfaef15fa, 0x59b2eb59, 0x478ec947, 0xf0fb0bf0, 0xad41ecad, 0xd4b367d4, 0xa25ffda2, 0xaf45eaaf, 0x9c23bf9c, 0xa453f7a4, 105 0x72e49672, 0xc09b5bc0, 0xb775c2b7, 0xfde11cfd, 0x933dae93, 0x264c6a26, 0x366c5a36, 0x3f7e413f, 0xf7f502f7, 0xcc834fcc, 106 0x34685c34, 0xa551f4a5, 0xe5d134e5, 0xf1f908f1, 0x71e29371, 0xd8ab73d8, 0x31625331, 0x152a3f15, 0x04080c04, 0xc79552c7, 107 0x23466523, 0xc39d5ec3, 0x18302818, 0x9637a196, 0x050a0f05, 0x9a2fb59a, 0x070e0907, 0x12243612, 0x801b9b80, 0xe2df3de2, 108 0xebcd26eb, 0x274e6927, 0xb27fcdb2, 0x75ea9f75, 0x09121b09, 0x831d9e83, 0x2c58742c, 0x1a342e1a, 0x1b362d1b, 0x6edcb26e, 109 0x5ab4ee5a, 0xa05bfba0, 0x52a4f652, 0x3b764d3b, 0xd6b761d6, 0xb37dceb3, 0x29527b29, 0xe3dd3ee3, 0x2f5e712f, 0x84139784, 110 0x53a6f553, 0xd1b968d1, 0x00000000, 0xedc12ced, 0x20406020, 0xfce31ffc, 0xb179c8b1, 0x5bb6ed5b, 0x6ad4be6a, 0xcb8d46cb, 111 0xbe67d9be, 0x39724b39, 0x4a94de4a, 0x4c98d44c, 0x58b0e858, 0xcf854acf, 0xd0bb6bd0, 0xefc52aef, 0xaa4fe5aa, 0xfbed16fb, 112 0x4386c543, 0x4d9ad74d, 0x33665533, 0x85119485, 0x458acf45, 0xf9e910f9, 0x02040602, 0x7ffe817f, 0x50a0f050, 0x3c78443c, 113 0x9f25ba9f, 0xa84be3a8, 0x51a2f351, 0xa35dfea3, 0x4080c040, 0x8f058a8f, 0x923fad92, 0x9d21bc9d, 0x38704838, 0xf5f104f5, 114 0xbc63dfbc, 0xb677c1b6, 0xdaaf75da, 0x21426321, 0x10203010, 0xffe51aff, 0xf3fd0ef3, 0xd2bf6dd2, 0xcd814ccd, 0x0c18140c, 115 0x13263513, 0xecc32fec, 0x5fbee15f, 0x9735a297, 0x4488cc44, 0x172e3917, 0xc49357c4, 0xa755f2a7, 0x7efc827e, 0x3d7a473d, 116 0x64c8ac64, 0x5dbae75d, 0x19322b19, 0x73e69573, 0x60c0a060, 0x81199881, 0x4f9ed14f, 0xdca37fdc, 0x22446622, 0x2a547e2a, 117 0x903bab90, 0x880b8388, 0x468cca46, 0xeec729ee, 0xb86bd3b8, 0x14283c14, 0xdea779de, 0x5ebce25e, 0x0b161d0b, 0xdbad76db, 118 0xe0db3be0, 0x32645632, 0x3a744e3a, 0x0a141e0a, 0x4992db49, 0x060c0a06, 0x24486c24, 0x5cb8e45c, 0xc29f5dc2, 0xd3bd6ed3, 119 0xac43efac, 0x62c4a662, 0x9139a891, 0x9531a495, 0xe4d337e4, 0x79f28b79, 0xe7d532e7, 0xc88b43c8, 0x376e5937, 0x6ddab76d, 120 0x8d018c8d, 0xd5b164d5, 0x4e9cd24e, 0xa949e0a9, 0x6cd8b46c, 0x56acfa56, 0xf4f307f4, 0xeacf25ea, 0x65caaf65, 0x7af48e7a, 121 0xae47e9ae, 0x08101808, 0xba6fd5ba, 0x78f08878, 0x254a6f25, 0x2e5c722e, 0x1c38241c, 0xa657f1a6, 0xb473c7b4, 0xc69751c6, 122 0xe8cb23e8, 0xdda17cdd, 0x74e89c74, 0x1f3e211f, 0x4b96dd4b, 0xbd61dcbd, 0x8b0d868b, 0x8a0f858a, 0x70e09070, 0x3e7c423e, 123 0xb571c4b5, 0x66ccaa66, 0x4890d848, 0x03060503, 0xf6f701f6, 0x0e1c120e, 0x61c2a361, 0x356a5f35, 0x57aef957, 0xb969d0b9, 124 0x86179186, 0xc19958c1, 0x1d3a271d, 0x9e27b99e, 0xe1d938e1, 0xf8eb13f8, 0x982bb398, 0x11223311, 0x69d2bb69, 0xd9a970d9, 125 0x8e07898e, 0x9433a794, 0x9b2db69b, 0x1e3c221e, 0x87159287, 0xe9c920e9, 0xce8749ce, 0x55aaff55, 0x28507828, 0xdfa57adf, 126 0x8c038f8c, 0xa159f8a1, 0x89098089, 0x0d1a170d, 0xbf65dabf, 0xe6d731e6, 0x4284c642, 0x68d0b868, 0x4182c341, 0x9929b099, 127 0x2d5a772d, 0x0f1e110f, 0xb07bcbb0, 0x54a8fc54, 0xbb6dd6bb, 0x162c3a16, 128 ]; 129 130 private static const uint[] t4 = [ 131 0xc6a56363, 0xf8847c7c, 0xee997777, 0xf68d7b7b, 0xff0df2f2, 0xd6bd6b6b, 0xdeb16f6f, 0x9154c5c5, 0x60503030, 0x02030101, 132 0xcea96767, 0x567d2b2b, 0xe719fefe, 0xb562d7d7, 0x4de6abab, 0xec9a7676, 0x8f45caca, 0x1f9d8282, 0x8940c9c9, 0xfa877d7d, 133 0xef15fafa, 0xb2eb5959, 0x8ec94747, 0xfb0bf0f0, 0x41ecadad, 0xb367d4d4, 0x5ffda2a2, 0x45eaafaf, 0x23bf9c9c, 0x53f7a4a4, 134 0xe4967272, 0x9b5bc0c0, 0x75c2b7b7, 0xe11cfdfd, 0x3dae9393, 0x4c6a2626, 0x6c5a3636, 0x7e413f3f, 0xf502f7f7, 0x834fcccc, 135 0x685c3434, 0x51f4a5a5, 0xd134e5e5, 0xf908f1f1, 0xe2937171, 0xab73d8d8, 0x62533131, 0x2a3f1515, 0x080c0404, 0x9552c7c7, 136 0x46652323, 0x9d5ec3c3, 0x30281818, 0x37a19696, 0x0a0f0505, 0x2fb59a9a, 0x0e090707, 0x24361212, 0x1b9b8080, 0xdf3de2e2, 137 0xcd26ebeb, 0x4e692727, 0x7fcdb2b2, 0xea9f7575, 0x121b0909, 0x1d9e8383, 0x58742c2c, 0x342e1a1a, 0x362d1b1b, 0xdcb26e6e, 138 0xb4ee5a5a, 0x5bfba0a0, 0xa4f65252, 0x764d3b3b, 0xb761d6d6, 0x7dceb3b3, 0x527b2929, 0xdd3ee3e3, 0x5e712f2f, 0x13978484, 139 0xa6f55353, 0xb968d1d1, 0x00000000, 0xc12ceded, 0x40602020, 0xe31ffcfc, 0x79c8b1b1, 0xb6ed5b5b, 0xd4be6a6a, 0x8d46cbcb, 140 0x67d9bebe, 0x724b3939, 0x94de4a4a, 0x98d44c4c, 0xb0e85858, 0x854acfcf, 0xbb6bd0d0, 0xc52aefef, 0x4fe5aaaa, 0xed16fbfb, 141 0x86c54343, 0x9ad74d4d, 0x66553333, 0x11948585, 0x8acf4545, 0xe910f9f9, 0x04060202, 0xfe817f7f, 0xa0f05050, 0x78443c3c, 142 0x25ba9f9f, 0x4be3a8a8, 0xa2f35151, 0x5dfea3a3, 0x80c04040, 0x058a8f8f, 0x3fad9292, 0x21bc9d9d, 0x70483838, 0xf104f5f5, 143 0x63dfbcbc, 0x77c1b6b6, 0xaf75dada, 0x42632121, 0x20301010, 0xe51affff, 0xfd0ef3f3, 0xbf6dd2d2, 0x814ccdcd, 0x18140c0c, 144 0x26351313, 0xc32fecec, 0xbee15f5f, 0x35a29797, 0x88cc4444, 0x2e391717, 0x9357c4c4, 0x55f2a7a7, 0xfc827e7e, 0x7a473d3d, 145 0xc8ac6464, 0xbae75d5d, 0x322b1919, 0xe6957373, 0xc0a06060, 0x19988181, 0x9ed14f4f, 0xa37fdcdc, 0x44662222, 0x547e2a2a, 146 0x3bab9090, 0x0b838888, 0x8cca4646, 0xc729eeee, 0x6bd3b8b8, 0x283c1414, 0xa779dede, 0xbce25e5e, 0x161d0b0b, 0xad76dbdb, 147 0xdb3be0e0, 0x64563232, 0x744e3a3a, 0x141e0a0a, 0x92db4949, 0x0c0a0606, 0x486c2424, 0xb8e45c5c, 0x9f5dc2c2, 0xbd6ed3d3, 148 0x43efacac, 0xc4a66262, 0x39a89191, 0x31a49595, 0xd337e4e4, 0xf28b7979, 0xd532e7e7, 0x8b43c8c8, 0x6e593737, 0xdab76d6d, 149 0x018c8d8d, 0xb164d5d5, 0x9cd24e4e, 0x49e0a9a9, 0xd8b46c6c, 0xacfa5656, 0xf307f4f4, 0xcf25eaea, 0xcaaf6565, 0xf48e7a7a, 150 0x47e9aeae, 0x10180808, 0x6fd5baba, 0xf0887878, 0x4a6f2525, 0x5c722e2e, 0x38241c1c, 0x57f1a6a6, 0x73c7b4b4, 0x9751c6c6, 151 0xcb23e8e8, 0xa17cdddd, 0xe89c7474, 0x3e211f1f, 0x96dd4b4b, 0x61dcbdbd, 0x0d868b8b, 0x0f858a8a, 0xe0907070, 0x7c423e3e, 152 0x71c4b5b5, 0xccaa6666, 0x90d84848, 0x06050303, 0xf701f6f6, 0x1c120e0e, 0xc2a36161, 0x6a5f3535, 0xaef95757, 0x69d0b9b9, 153 0x17918686, 0x9958c1c1, 0x3a271d1d, 0x27b99e9e, 0xd938e1e1, 0xeb13f8f8, 0x2bb39898, 0x22331111, 0xd2bb6969, 0xa970d9d9, 154 0x07898e8e, 0x33a79494, 0x2db69b9b, 0x3c221e1e, 0x15928787, 0xc920e9e9, 0x8749cece, 0xaaff5555, 0x50782828, 0xa57adfdf, 155 0x038f8c8c, 0x59f8a1a1, 0x09808989, 0x1a170d0d, 0x65dabfbf, 0xd731e6e6, 0x84c64242, 0xd0b86868, 0x82c34141, 0x29b09999, 156 0x5a772d2d, 0x1e110f0f, 0x7bcbb0b0, 0xa8fc5454, 0x6dd6bbbb, 0x2c3a1616, 157 ]; 158 159 private static const uint[] it = [ 160 0x50a7f451, 0x5365417e, 0xc3a4171a, 0x965e273a, 0xcb6bab3b, 0xf1459d1f, 0xab58faac, 0x9303e34b, 0x55fa3020, 0xf66d76ad, 161 0x9176cc88, 0x254c02f5, 0xfcd7e54f, 0xd7cb2ac5, 0x80443526, 0x8fa362b5, 0x495ab1de, 0x671bba25, 0x980eea45, 0xe1c0fe5d, 162 0x02752fc3, 0x12f04c81, 0xa397468d, 0xc6f9d36b, 0xe75f8f03, 0x959c9215, 0xeb7a6dbf, 0xda595295, 0x2d83bed4, 0xd3217458, 163 0x2969e049, 0x44c8c98e, 0x6a89c275, 0x78798ef4, 0x6b3e5899, 0xdd71b927, 0xb64fe1be, 0x17ad88f0, 0x66ac20c9, 0xb43ace7d, 164 0x184adf63, 0x82311ae5, 0x60335197, 0x457f5362, 0xe07764b1, 0x84ae6bbb, 0x1ca081fe, 0x942b08f9, 0x58684870, 0x19fd458f, 165 0x876cde94, 0xb7f87b52, 0x23d373ab, 0xe2024b72, 0x578f1fe3, 0x2aab5566, 0x0728ebb2, 0x03c2b52f, 0x9a7bc586, 0xa50837d3, 166 0xf2872830, 0xb2a5bf23, 0xba6a0302, 0x5c8216ed, 0x2b1ccf8a, 0x92b479a7, 0xf0f207f3, 0xa1e2694e, 0xcdf4da65, 0xd5be0506, 167 0x1f6234d1, 0x8afea6c4, 0x9d532e34, 0xa055f3a2, 0x32e18a05, 0x75ebf6a4, 0x39ec830b, 0xaaef6040, 0x069f715e, 0x51106ebd, 168 0xf98a213e, 0x3d06dd96, 0xae053edd, 0x46bde64d, 0xb58d5491, 0x055dc471, 0x6fd40604, 0xff155060, 0x24fb9819, 0x97e9bdd6, 169 0xcc434089, 0x779ed967, 0xbd42e8b0, 0x888b8907, 0x385b19e7, 0xdbeec879, 0x470a7ca1, 0xe90f427c, 0xc91e84f8, 0x00000000, 170 0x83868009, 0x48ed2b32, 0xac70111e, 0x4e725a6c, 0xfbff0efd, 0x5638850f, 0x1ed5ae3d, 0x27392d36, 0x64d90f0a, 0x21a65c68, 171 0xd1545b9b, 0x3a2e3624, 0xb1670a0c, 0x0fe75793, 0xd296eeb4, 0x9e919b1b, 0x4fc5c080, 0xa220dc61, 0x694b775a, 0x161a121c, 172 0x0aba93e2, 0xe52aa0c0, 0x43e0223c, 0x1d171b12, 0x0b0d090e, 0xadc78bf2, 0xb9a8b62d, 0xc8a91e14, 0x8519f157, 0x4c0775af, 173 0xbbdd99ee, 0xfd607fa3, 0x9f2601f7, 0xbcf5725c, 0xc53b6644, 0x347efb5b, 0x7629438b, 0xdcc623cb, 0x68fcedb6, 0x63f1e4b8, 174 0xcadc31d7, 0x10856342, 0x40229713, 0x2011c684, 0x7d244a85, 0xf83dbbd2, 0x1132f9ae, 0x6da129c7, 0x4b2f9e1d, 0xf330b2dc, 175 0xec52860d, 0xd0e3c177, 0x6c16b32b, 0x99b970a9, 0xfa489411, 0x2264e947, 0xc48cfca8, 0x1a3ff0a0, 0xd82c7d56, 0xef903322, 176 0xc74e4987, 0xc1d138d9, 0xfea2ca8c, 0x360bd498, 0xcf81f5a6, 0x28de7aa5, 0x268eb7da, 0xa4bfad3f, 0xe49d3a2c, 0x0d927850, 177 0x9bcc5f6a, 0x62467e54, 0xc2138df6, 0xe8b8d890, 0x5ef7392e, 0xf5afc382, 0xbe805d9f, 0x7c93d069, 0xa92dd56f, 0xb31225cf, 178 0x3b99acc8, 0xa77d1810, 0x6e639ce8, 0x7bbb3bdb, 0x097826cd, 0xf418596e, 0x01b79aec, 0xa89a4f83, 0x656e95e6, 0x7ee6ffaa, 179 0x08cfbc21, 0xe6e815ef, 0xd99be7ba, 0xce366f4a, 0xd4099fea, 0xd67cb029, 0xafb2a431, 0x31233f2a, 0x3094a5c6, 0xc066a235, 180 0x37bc4e74, 0xa6ca82fc, 0xb0d090e0, 0x15d8a733, 0x4a9804f1, 0xf7daec41, 0x0e50cd7f, 0x2ff69117, 0x8dd64d76, 0x4db0ef43, 181 0x544daacc, 0xdf0496e4, 0xe3b5d19e, 0x1b886a4c, 0xb81f2cc1, 0x7f516546, 0x04ea5e9d, 0x5d358c01, 0x737487fa, 0x2e410bfb, 182 0x5a1d67b3, 0x52d2db92, 0x335610e9, 0x1347d66d, 0x8c61d79a, 0x7a0ca137, 0x8e14f859, 0x893c13eb, 0xee27a9ce, 0x35c961b7, 183 0xede51ce1, 0x3cb1477a, 0x59dfd29c, 0x3f73f255, 0x79ce1418, 0xbf37c773, 0xeacdf753, 0x5baafd5f, 0x146f3ddf, 0x86db4478, 184 0x81f3afca, 0x3ec468b9, 0x2c342438, 0x5f40a3c2, 0x72c31d16, 0x0c25e2bc, 0x8b493c28, 0x41950dff, 0x7101a839, 0xdeb30c08, 185 0x9ce4b4d8, 0x90c15664, 0x6184cb7b, 0x70b632d5, 0x745c6c48, 0x4257b8d0, 186 ]; 187 188 private uint[Nb * (Nr + 1)] w; 189 private uint[Nb * (Nr + 1)] dw; 190 private ubyte[] iv; 191 192 public this(in ubyte[] key, in ubyte[] iv = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]) 193 { 194 keyExpansion(key); 195 196 enforce((iv.length == 16), "The length of IV must be 16"); 197 this.iv = cast(ubyte[])iv; 198 } 199 200 ~this() 201 { 202 w[] = 0; 203 dw[] = 0; 204 iv[] = 0; 205 } 206 207 public ubyte[] encrypt(in ubyte[] buffer, PaddingMode paddingMode) 208 { 209 ubyte[] message = Padding.padding(buffer, 16, paddingMode); 210 ubyte[] iv_step = iv.dup; 211 212 for (int i = 0; i < message.length / 16; i++) 213 { 214 for (int j = 0; j < 16; j++) 215 { 216 message[i * 16 + j] ^= iv_step[j]; 217 } 218 219 uint* stateptr = cast(uint*) message + i * 4; 220 uint[] state = stateptr[0 .. Nb]; 221 uint[Nb] t; 222 uint round = 0; 223 224 // Add initial round key 225 state[0] ^= w[0]; 226 state[1] ^= w[1]; 227 state[2] ^= w[2]; 228 state[3] ^= w[3]; 229 t = state[0 .. Nb]; 230 231 while (round++ < Nr - 1) 232 { 233 // SubBytes, ShiftRows and MixColumns 234 state[0] = t1[cast(ubyte)(t[0])] ^ t2[cast(ubyte)(t[1] >> 8)] ^ t3[cast(ubyte)(t[2] >> 16)] ^ t4[cast(ubyte)(t[3] >> 24)] ^ w[round * Nb]; 235 state[1] = t1[cast(ubyte)(t[1])] ^ t2[cast(ubyte)(t[2] >> 8)] ^ t3[cast(ubyte)(t[3] >> 16)] ^ t4[cast(ubyte)(t[0] >> 24)] ^ w[round * Nb + 1]; 236 state[2] = t1[cast(ubyte)(t[2])] ^ t2[cast(ubyte)(t[3] >> 8)] ^ t3[cast(ubyte)(t[0] >> 16)] ^ t4[cast(ubyte)(t[1] >> 24)] ^ w[round * Nb + 2]; 237 state[3] = t1[cast(ubyte)(t[3])] ^ t2[cast(ubyte)(t[0] >> 8)] ^ t3[cast(ubyte)(t[1] >> 16)] ^ t4[cast(ubyte)(t[2] >> 24)] ^ w[round * Nb + 3]; 238 t[] = state[0 .. Nb]; 239 } 240 241 // SubBytes and ShiftRows 242 state[0] = sbox[cast(ubyte)(t[0])] ^ ((sbox[cast(ubyte)(t[1] >> 8)]) << 8) ^ ((sbox[cast(ubyte)(t[2] >> 16)]) << 16) ^ ((sbox[cast(ubyte)(t[3] >> 24)]) << 24) ^ w[round * Nb]; 243 state[1] = sbox[cast(ubyte)(t[1])] ^ ((sbox[cast(ubyte)(t[2] >> 8)]) << 8) ^ ((sbox[cast(ubyte)(t[3] >> 16)]) << 16) ^ ((sbox[cast(ubyte)(t[0] >> 24)]) << 24) ^ w[round * Nb + 1]; 244 state[2] = sbox[cast(ubyte)(t[2])] ^ ((sbox[cast(ubyte)(t[3] >> 8)]) << 8) ^ ((sbox[cast(ubyte)(t[0] >> 16)]) << 16) ^ ((sbox[cast(ubyte)(t[1] >> 24)]) << 24) ^ w[round * Nb + 2]; 245 state[3] = sbox[cast(ubyte)(t[3])] ^ ((sbox[cast(ubyte)(t[0] >> 8)]) << 8) ^ ((sbox[cast(ubyte)(t[1] >> 16)]) << 16) ^ ((sbox[cast(ubyte)(t[2] >> 24)]) << 24) ^ w[round * Nb + 3]; 246 247 iv_step = message[i * 16..i * 16 + 16]; 248 } 249 250 return message; 251 } 252 253 public ubyte[] decrypt(in ubyte[] buffer, PaddingMode paddingMode) 254 { 255 enforce(buffer.length % 16 == 0, "The ciphertext length must be a multiple of 16."); 256 257 ubyte[] cipher = buffer.dup; 258 ubyte[] iv_step = iv.dup; 259 260 for (int i = 0; i < cipher.length / 16; i++) 261 { 262 ubyte[] iv_next = cipher[i * 16..i * 16 + 16].dup; 263 264 uint* stateptr = cast(uint*) cipher + i * 4; 265 uint[] state = stateptr[0 .. Nb]; 266 uint[4] t; 267 268 // Add last round key 269 state[0] ^= dw[Nr * Nb]; 270 state[1] ^= dw[Nr * Nb + 1]; 271 state[2] ^= dw[Nr * Nb + 2]; 272 state[3] ^= dw[Nr * Nb + 3]; 273 t[] = state[0 .. Nb]; 274 275 for (int round = Nr - 1; round > 0; --round) 276 { 277 // InvSubBytes, InvShiftRows and InvMixColumns combined 278 state[0] = it[cast(ubyte)(t[0])] ^ rotate!1(it[cast(ubyte)(t[3] >> 8)]) ^ rotate!2(it[cast(ubyte)(t[2] >> 16)]) ^ rotate!3(it[cast(ubyte)(t[1] >> 24)]) ^ dw[round * Nb]; 279 state[1] = it[cast(ubyte)(t[1])] ^ rotate!1(it[cast(ubyte)(t[0] >> 8)]) ^ rotate!2(it[cast(ubyte)(t[3] >> 16)]) ^ rotate!3(it[cast(ubyte)(t[2] >> 24)]) ^ dw[round * Nb + 1]; 280 state[2] = it[cast(ubyte)(t[2])] ^ rotate!1(it[cast(ubyte)(t[1] >> 8)]) ^ rotate!2(it[cast(ubyte)(t[0] >> 16)]) ^ rotate!3(it[cast(ubyte)(t[3] >> 24)]) ^ dw[round * Nb + 2]; 281 state[3] = it[cast(ubyte)(t[3])] ^ rotate!1(it[cast(ubyte)(t[2] >> 8)]) ^ rotate!2(it[cast(ubyte)(t[1] >> 16)]) ^ rotate!3(it[cast(ubyte)(t[0] >> 24)]) ^ dw[round * Nb + 3]; 282 t[] = state[0 .. Nb]; 283 } 284 285 // InvSubBytes and InvShiftRows combined 286 state[0] = isbox[cast(ubyte)(t[0])] ^ ((isbox[cast(ubyte)(t[3] >> 8)]) << 8) ^ ((isbox[cast(ubyte)(t[2] >> 16)]) << 16) ^ ((isbox[cast(ubyte)(t[1] >> 24)]) << 24) ^ dw[0]; 287 state[1] = isbox[cast(ubyte)(t[1])] ^ ((isbox[cast(ubyte)(t[0] >> 8)]) << 8) ^ ((isbox[cast(ubyte)(t[3] >> 16)]) << 16) ^ ((isbox[cast(ubyte)(t[2] >> 24)]) << 24) ^ dw[1]; 288 state[2] = isbox[cast(ubyte)(t[2])] ^ ((isbox[cast(ubyte)(t[1] >> 8)]) << 8) ^ ((isbox[cast(ubyte)(t[0] >> 16)]) << 16) ^ ((isbox[cast(ubyte)(t[3] >> 24)]) << 24) ^ dw[2]; 289 state[3] = isbox[cast(ubyte)(t[3])] ^ ((isbox[cast(ubyte)(t[2] >> 8)]) << 8) ^ ((isbox[cast(ubyte)(t[1] >> 16)]) << 16) ^ ((isbox[cast(ubyte)(t[0] >> 24)]) << 24) ^ dw[3]; 290 291 for (int j = 0; j < 16; j++) 292 { 293 cipher[i * 16 + j] ^= iv_step[j]; 294 } 295 296 iv_step = iv_next; 297 } 298 299 return Padding.unpadding(cipher, 16, paddingMode); 300 } 301 302 private static uint rotate(uint n)(uint w) if (n == 0 || n == 1 || n == 2 || n == 3) 303 { 304 return w << (n * 8) | w >> ((4 - n) * 8); 305 } 306 307 private static uint subWord(uint w) 308 { 309 return sbox[cast(ubyte)(w)] | sbox[cast(ubyte)(w >> 8)] << 8 | sbox[cast(ubyte)(w >> 16)] << 16 | sbox[cast(ubyte)(w >> 24)] << 24; 310 } 311 312 private static uint rotWord(uint w) 313 { 314 return (w >> 8) | (w << 24); 315 } 316 317 // Need to compute xtimes(a, b). Use table lookup in inverse table (over 0x0b0d090e), 318 // and isbox(sbox(x)) = x to avoid implementing finite field multiplication in GF(256). 319 private static void invMixColumns(uint[] s) 320 { 321 for (uint col = 0; col < 4; ++col) 322 { 323 ubyte a = s[col] & 0xff; 324 ubyte b = (s[col] >> 8) & 0xff; 325 ubyte c = (s[col] >> 16) & 0xff; 326 ubyte d = (s[col] >> 24) & 0xff; 327 s[col] = (it[sbox[a]] & 0xff) ^ ((it[sbox[b]] >> 24) & 0xff) ^ ((it[sbox[c]] >> 16) & 0xff) ^ ((it[sbox[d]] >> 8) & 0xff); 328 s[col] |= (((it[sbox[a]] >> 8) & 0xff) ^ (it[sbox[b]] & 0xff) ^ ((it[sbox[c]] >> 24) & 0xff) ^ ((it[sbox[d]] >> 16) & 0xff)) << 8; 329 s[col] |= (((it[sbox[a]] >> 16) & 0xff) ^ ((it[sbox[b]] >> 8) & 0xff) ^ (it[sbox[c]] & 0xff) ^ ((it[sbox[d]] >> 24) & 0xff)) << 16; 330 s[col] |= (((it[sbox[a]] >> 24) & 0xff) ^ ((it[sbox[b]] >> 16) & 0xff) ^ ((it[sbox[c]] >> 8) & 0xff) ^ (it[sbox[d]] & 0xff)) << 24; 331 } 332 } 333 334 private void keyExpansion(in ubyte[] k) 335 { 336 assert(k.length >= Nk * 4, "At least " ~ (Nk * 4).to!string ~ " bytes long key must be set"); 337 338 static const uint[10] rCon = [0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36]; 339 340 uint i = 0; 341 while (i < Nk) 342 { 343 w[i] = k[4 * i] | k[4 * i + 1] << 8 | k[4 * i + 2] << 16 | k[4 * i + 3] << 24; 344 i++; 345 } 346 347 uint tmp; 348 i = Nk; 349 while (i < Nb * (Nr + 1)) 350 { 351 tmp = w[i - 1]; 352 353 if (i % Nk == 0) 354 { 355 tmp = subWord(rotWord(tmp)) ^ rCon[i / Nk - 1]; 356 } 357 358 static if (Nk > 6) 359 { 360 if (i % Nk == 4) 361 { 362 tmp = subWord(tmp); 363 } 364 } 365 366 w[i] = w[i - Nk] ^ tmp; 367 ++i; 368 } 369 370 dw[] = w[]; 371 for (i = 1; i < Nr; ++i) 372 { 373 invMixColumns(dw[i * Nb .. (i + 1) * Nb]); 374 } 375 } 376 377 @property public const size_t blockSize() 378 { 379 return Nb * 4; 380 } 381 } 382 383 class AESUtils 384 { 385 public static ubyte[] encrypt(alias T = AES128)(in ubyte[] buffer, in char[] key, in ubyte[] iv = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], PaddingMode paddingMode = PaddingMode.NoPadding) 386 { 387 return encrypt_decrypt!(T, "encrypt")(buffer, key, iv, paddingMode); 388 } 389 390 public static ubyte[] decrypt(alias T = AES128)(in ubyte[] buffer, in char[] key, in ubyte[] iv = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], PaddingMode paddingMode = PaddingMode.NoPadding) 391 { 392 return encrypt_decrypt!(T, "decrypt")(buffer, key, iv, paddingMode); 393 } 394 395 private static ubyte[] encrypt_decrypt(alias T1 = AES128, string T2)(in ubyte[] buffer, in char[] key, in ubyte[] iv, PaddingMode paddingMode) 396 { 397 const ubyte[] bkey = cast(const ubyte[]) key; 398 399 scope aes = new T1(bkey, iv); 400 401 if (T2 == "encrypt") 402 { 403 return aes.encrypt(buffer, paddingMode); 404 } 405 else 406 { 407 return aes.decrypt(buffer, paddingMode); 408 } 409 } 410 } 411 412 unittest 413 { 414 import std.conv; 415 416 auto key = cast(ubyte[]) hexString!"000102030405060708090a0b0c0d0e0f"; 417 auto message = cast(ubyte[]) hexString!"00112233445566778899aabbccddeeff"; 418 ubyte[] iv = [1, 2, 3, 4, 5, 6, 7, 8, 0, 0, 0, 0, 1, 2, 3, 4]; 419 420 auto aes = new AES128(key, iv); 421 422 ubyte[] buffer = aes.encrypt(message, PaddingMode.PKCS5); 423 424 buffer = aes.decrypt(buffer, PaddingMode.PKCS5); 425 assert(buffer == message); 426 } 427 428 unittest 429 { 430 string key = "12341234123412341234123412341234"; // length = 24; 431 ubyte[] message = cast(ubyte[]) "12341234123412341234123412341234"; 432 ubyte[] iv = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; 433 434 ubyte[] buffer = AESUtils.encrypt!AES128(message, key, iv, PaddingMode.PKCS5); 435 buffer = AESUtils.decrypt!AES128(buffer, key, iv, PaddingMode.PKCS5); 436 437 assert(message == buffer); 438 }