C++语言下支撑中文无限长度AES加解密算法实现

#include <cstring> #include <exception> #include "AES.h" #include <iostream> using namespace std; const int sm_alog[256] = { 1, 3, 5, 15, 17, 51, 85, 255, 26, 46, 114, 150, 161, 248, 19, 53, 95, 225, 56, 72, 216, 115, 149, 164, 247, 2, 6, 10, 30, 34, 102, 170, 229, 52, 92, 228, 55, 89, 235, 38, 106, 190, 217, 112, 144, 171, 230, 49, 83, 245, 4, 12, 20, 60, 68, 204, 79, 209, 104, 184, 211, 110, 178, 205, 76, 212, 103, 169, 224, 59, 77, 215, 98, 166, 241, 8, 24, 40, 120, 136, 131, 158, 185, 208, 107, 189, 220, 127, 129, 152, 179, 206, 73, 219, 118, 154, 181, 196, 87, 249, 16, 48, 80, 240, 11, 29, 39, 105, 187, 214, 97, 163, 254, 25, 43, 125, 135, 146, 173, 236, 47, 113, 147, 174, 233, 32, 96, 160, 251, 22, 58, 78, 210, 109, 183, 194, 93, 231, 50, 86, 250, 21, 63, 65, 195, 94, 226, 61, 71, 201, 64, 192, 91, 237, 44, 116, 156, 191, 218, 117, 159, 186, 213, 100, 172, 239, 42, 126, 130, 157, 188, 223, 122, 142, 137, 128, 155, 182, 193, 88, 232, 35, 101, 175, 234, 37, 111, 177, 200, 67, 197, 84, 252, 31, 33, 99, 165, 244, 7, 9, 27, 45, 119, 153, 176, 203, 70, 202, 69, 207, 74, 222, 121, 139, 134, 145, 168, 227, 62, 66, 198, 81, 243, 14, 18, 54, 90, 238, 41, 123, 141, 140, 143, 138, 133, 148, 167, 242, 13, 23, 57, 75, 221, 124, 132, 151, 162, 253, 28, 36, 108, 180, 199, 82, 246, 1 }; const int sm_log[256] = { 0, 0, 25, 1, 50, 2, 26, 198, 75, 199, 27, 104, 51, 238, 223, 3, 100, 4, 224, 14, 52, 141, 129, 239, 76, 113, 8, 200, 248, 105, 28, 193, 125, 194, 29, 181, 249, 185, 39, 106, 77, 228, 166, 114, 154, 201, 9, 120, 101, 47, 138, 5, 33, 15, 225, 36, 18, 240, 130, 69, 53, 147, 218, 142, 150, 143, 219, 189, 54, 208, 206, 148, 19, 92, 210, 241, 64, 70, 131, 56, 102, 221, 253, 48, 191, 6, 139, 98, 179, 37, 226, 152, 34, 136, 145, 16, 126, 110, 72, 195, 163, 182, 30, 66, 58, 107, 40, 84, 250, 133, 61, 186, 43, 121, 10, 21, 155, 159, 94, 202, 78, 212, 172, 229, 243, 115, 167, 87, 175, 88, 168, 80, 244, 234, 214, 116, 79, 174, 233, 213, 231, 230, 173, 232, 44, 215, 117, 122, 235, 22, 11, 245, 89, 203, 95, 176, 156, 169, 81, 160, 127, 12, 246, 111, 23, 196, 73, 236, 216, 67, 31, 45, 164, 118, 123, 183, 204, 187, 62, 90, 251, 96, 177, 134, 59, 82, 161, 108, 170, 85, 41, 157, 151, 178, 135, 144, 97, 190, 220, 252, 188, 149, 207, 205, 55, 63, 91, 209, 83, 57, 132, 60, 65, 162, 109, 71, 20, 42, 158, 93, 86, 242, 211, 171, 68, 17, 146, 217, 35, 32, 46, 137, 180, 124, 184, 38, 119, 153, 227, 165, 103, 74, 237, 222, 197, 49, 254, 24, 13, 99, 140, 128, 192, 247, 112, 7 }; const char sm_S[256] = { 99, 124, 119, 123, -14, 107, 111, -59, 48, 1, 103, 43, -2, -41, -85, 118, -54, -126, -55, 125, -6, 89, 71, -16, -83, -44, -94, -81, -100, -92, 114, -64, -73, -3, -109, 38, 54, 63, -9, -52, 52, -91, -27, -15, 113, -40, 49, 21, 4, -57, 35, -61, 24, -106, 5, -102, 7, 18, -128, -30, -21, 39, -78, 117, 9, -125, 44, 26, 27, 110, 90, -96, 82, 59, -42, -77, 41, -29, 47, -124, 83, -47, 0, -19, 32, -4, -79, 91, 106, -53, -66, 57, 74, 76, 88, -49, -48, -17, -86, -5, 67, 77, 51, -123, 69, -7, 2, 127, 80, 60, -97, -88, 81, -93, 64, -113, -110, -99, 56, -11, -68, -74, -38, 33, 16, -1, -13, -46, -51, 12, 19, -20, 95, -105, 68, 23, -60, -89, 126, 61, 100, 93, 25, 115, 96, -127, 79, -36, 34, 42, -112, -120, 70, -18, -72, 20, -34, 94, 11, -37, -32, 50, 58, 10, 73, 6, 36, 92, -62, -45, -84, 98, -111, -107, -28, 121, -25, -56, 55, 109, -115, -43, 78, -87, 108, 86, -12, -22, 101, 122, -82, 8, -70, 120, 37, 46, 28, -90, -76, -58, -24, -35, 116, 31, 75, -67, -117, -118, 112, 62, -75, 102, 72, 3, -10, 14, 97, 53, 87, -71, -122, -63, 29, -98, -31, -8, -104, 17, 105, -39, -114, -108, -101, 30, -121, -23, -50, 85, 40, -33, -116, -95, -119, 13, -65, -26, 66, 104, 65, -103, 45, 15, -80, 84, -69, 22 }; const char sm_Si[256] = { 82, 9, 106, -43, 48, 54, -91, 56, -65, 64, -93, -98, -127, -13, -41, -5, 124, -29, 57, -126, -101, 47, -1, -121, 52, -114, 67, 68, -60, -34, -23, -53, 84, 123, -108, 50, -90, -62, 35, 61, -18, 76, -107, 11, 66, -6, -61, 78, 8, 46, -95, 102, 40, -39, 36, -78, 118, 91, -94, 73, 109, -117, -47, 37, 114, -8, -10, 100, -122, 104, -104, 22, -44, -92, 92, -52, 93, 101, -74, -110, 108, 112, 72, 80, -3, -19, -71, -38, 94, 21, 70, 87, -89, -115, -99, -124, -112, -40, -85, 0, -116, -68, -45, 10, -9, -28, 88, 5, -72, -77, 69, 6, -48, 44, 30, -113, -54, 63, 15, 2, -63, -81, -67, 3, 1, 19, -118, 107, 58, -111, 17, 65, 79, 103, -36, -22, -105, -14, -49, -50, -16, -76, -26, 115, -106, -84, 116, 34, -25, -83, 53, -123, -30, -7, 55, -24, 28, 117, -33, 110, 71, -15, 26, 113, 29, 41, -59, -119, 111, -73, 98, 14, -86, 24, -66, 27, -4, 86, 62, 75, -58, -46, 121, 32, -102, -37, -64, -2, 120, -51, 90, -12, 31, -35, -88, 51, -120, 7, -57, 49, -79, 18, 16, 89, 39, -128, -20, 95, 96, 81, 127, -87, 25, -75, 74, 13, 45, -27, 122, -97, -109, -55, -100, -17, -96, -32, 59, 77, -82, 42, -11, -80, -56, -21, -69, 60, -125, 83, -103, 97, 23, 43, 4, 126, -70, 119, -42, 38, -31, 105, 20, 99, 85, 33, 12, 125 }; const int sm_T1[256] = { -966564955, -126059388, -294160487, -159679603, -855539, -697603139, -563122255, -1849309868, 1613770832, 33620227, -832084055, 1445669757, -402719207, -1244145822, 1303096294, -327780710, -1882535355, 528646813, -1983264448, -92439161, -268764651, -1302767125, -1907931191, -68095989, 1101901292, -1277897625, 1604494077, 1169141738, 597466303, 1403299063, -462261610, -1681866661, 1974974402, -503448292, 1033081774, 1277568618, 1815492186, 2118074177, -168298750, -2083730353, 1748251740, 1369810420, -773462732, -101584632, -495881837, -1411852173, 1647391059, 706024767, 134480908, -1782069422, 1176707941, -1648114850, 806885416, 932615841, 168101135, 798661301, 235341577, 605164086, 461406363, -538779075, -840176858, 1311188841, 2142417613, -361400929, 302582043, 495158174, 1479289972, 874125870, 907746093, -596742478, -1269146898, 1537253627, -1538108682, 1983593293, -1210657183, 2108928974, 1378429307, -572267714, 1580150641, 327451799, -1504488459, -1177431704, 0, -1041371860, 1075847264, -469959649, 2041688520, -1235526675, -731223362, -1916023994, 1740553945, 1916352843, -1807070498, -1739830060, -1336387352, -2049978550, -1143943061, -974131414, 1336584933, -302253290, -2042412091, -1706209833, 1714631509, 293963156, -1975171633, -369493744, 67240454, -25198719, -1605349136, 2017213508, 631218106, 1269344483, -1571728909, 1571005438, -2143272768, 93294474, 1066570413, 563977660, 1882732616, -235539196, 1673313503, 2008463041, -1344611723, 1109467491, 537923632, -436207846, -34344178, -1076702611, -2117218996, 403442708, 638784309, -1007883217, -1101045791, 899127202, -2008791860, 773265209, -1815821225, 1437050866, -58818942, 2050833735, -932944724, -1168286233, 840505643, -428641387, -1067425632, 427917720, -1638969391, -1545806721, 1143087718, 1412049534, 999329963, 193497219, -1941551414, -940642775, 1807268051, 672404540, -1478566279, -1134666014, 369822493, -1378100362, -606019525, 1681011286, 1949973070, 336202270, -1840690725, 201721354, 1210328172, -1201906460, -1614626211, -1110191250, 1135389935, -1000185178, 965841320, 831886756, -739974089, -226920053, -706222286, -1949775805, 1849112409, -630362697, 26054028, -1311386268, -1672589614, 1235855840, -663982924, -1403627782, -202050553, -806688219, -899324497, -193299826, 1202630377, 268961816, 1874508501, -260540280, 1243948399, 1546530418, 941366308, 1470539505, 1941222599, -1748580783, -873928669, -1579295364, -395021156, 1042226977, -1773450275, 1639824860, 227249030, 260737669, -529502064, 2084453954, 1907733956, -865704278, -1874310952, 100860677, -134810111, 470683154, -1033805405, 1781871967, -1370007559, 1773779408, 394692241, -1715355304, 974986535, 664706745, -639508168, -336005101, 731420851, 571543859, -764843589, -1445340816, 126783113, 865375399, 765172662, 1008606754, 361203602, -907417312, -2016489911, -1