689 lines
40 KiB
C#
689 lines
40 KiB
C#
using System;
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using Org.BouncyCastle.Crypto.Parameters;
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using Org.BouncyCastle.Crypto.Utilities;
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using Org.BouncyCastle.Utilities;
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namespace Org.BouncyCastle.Crypto.Engines;
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[Obsolete("Use AesEngine instead")]
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public class AesFastEngine : IBlockCipher
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{
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private const uint m1 = 2155905152u;
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private const uint m2 = 2139062143u;
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private const uint m3 = 27u;
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private const uint m4 = 3233857728u;
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private const uint m5 = 1061109567u;
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private const int BLOCK_SIZE = 16;
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private static readonly byte[] S = new byte[256]
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{
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99, 124, 119, 123, 242, 107, 111, 197, 48, 1,
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103, 43, 254, 215, 171, 118, 202, 130, 201, 125,
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250, 89, 71, 240, 173, 212, 162, 175, 156, 164,
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114, 192, 183, 253, 147, 38, 54, 63, 247, 204,
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52, 165, 229, 241, 113, 216, 49, 21, 4, 199,
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35, 195, 24, 150, 5, 154, 7, 18, 128, 226,
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235, 39, 178, 117, 9, 131, 44, 26, 27, 110,
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90, 160, 82, 59, 214, 179, 41, 227, 47, 132,
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83, 209, 0, 237, 32, 252, 177, 91, 106, 203,
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190, 57, 74, 76, 88, 207, 208, 239, 170, 251,
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67, 77, 51, 133, 69, 249, 2, 127, 80, 60,
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159, 168, 81, 163, 64, 143, 146, 157, 56, 245,
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188, 182, 218, 33, 16, 255, 243, 210, 205, 12,
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19, 236, 95, 151, 68, 23, 196, 167, 126, 61,
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100, 93, 25, 115, 96, 129, 79, 220, 34, 42,
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144, 136, 70, 238, 184, 20, 222, 94, 11, 219,
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224, 50, 58, 10, 73, 6, 36, 92, 194, 211,
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172, 98, 145, 149, 228, 121, 231, 200, 55, 109,
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141, 213, 78, 169, 108, 86, 244, 234, 101, 122,
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174, 8, 186, 120, 37, 46, 28, 166, 180, 198,
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232, 221, 116, 31, 75, 189, 139, 138, 112, 62,
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181, 102, 72, 3, 246, 14, 97, 53, 87, 185,
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134, 193, 29, 158, 225, 248, 152, 17, 105, 217,
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142, 148, 155, 30, 135, 233, 206, 85, 40, 223,
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140, 161, 137, 13, 191, 230, 66, 104, 65, 153,
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45, 15, 176, 84, 187, 22
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};
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private static readonly byte[] Si = new byte[256]
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{
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82, 9, 106, 213, 48, 54, 165, 56, 191, 64,
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163, 158, 129, 243, 215, 251, 124, 227, 57, 130,
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155, 47, 255, 135, 52, 142, 67, 68, 196, 222,
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233, 203, 84, 123, 148, 50, 166, 194, 35, 61,
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238, 76, 149, 11, 66, 250, 195, 78, 8, 46,
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161, 102, 40, 217, 36, 178, 118, 91, 162, 73,
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109, 139, 209, 37, 114, 248, 246, 100, 134, 104,
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152, 22, 212, 164, 92, 204, 93, 101, 182, 146,
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108, 112, 72, 80, 253, 237, 185, 218, 94, 21,
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70, 87, 167, 141, 157, 132, 144, 216, 171, 0,
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140, 188, 211, 10, 247, 228, 88, 5, 184, 179,
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69, 6, 208, 44, 30, 143, 202, 63, 15, 2,
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193, 175, 189, 3, 1, 19, 138, 107, 58, 145,
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17, 65, 79, 103, 220, 234, 151, 242, 207, 206,
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240, 180, 230, 115, 150, 172, 116, 34, 231, 173,
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53, 133, 226, 249, 55, 232, 28, 117, 223, 110,
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71, 241, 26, 113, 29, 41, 197, 137, 111, 183,
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98, 14, 170, 24, 190, 27, 252, 86, 62, 75,
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198, 210, 121, 32, 154, 219, 192, 254, 120, 205,
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90, 244, 31, 221, 168, 51, 136, 7, 199, 49,
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177, 18, 16, 89, 39, 128, 236, 95, 96, 81,
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127, 169, 25, 181, 74, 13, 45, 229, 122, 159,
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147, 201, 156, 239, 160, 224, 59, 77, 174, 42,
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245, 176, 200, 235, 187, 60, 131, 83, 153, 97,
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23, 43, 4, 126, 186, 119, 214, 38, 225, 105,
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20, 99, 85, 33, 12, 125
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};
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private static readonly byte[] rcon = new byte[30]
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{
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1, 2, 4, 8, 16, 32, 64, 128, 27, 54,
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108, 216, 171, 77, 154, 47, 94, 188, 99, 198,
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151, 53, 106, 212, 179, 125, 250, 239, 197, 145
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};
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private static readonly uint[] T0 = new uint[256]
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{
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2774754246u, 2222750968u, 2574743534u, 2373680118u, 234025727u, 3177933782u, 2976870366u, 1422247313u, 1345335392u, 50397442u,
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2842126286u, 2099981142u, 436141799u, 1658312629u, 3870010189u, 2591454956u, 1170918031u, 2642575903u, 1086966153u, 2273148410u,
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368769775u, 3948501426u, 3376891790u, 200339707u, 3970805057u, 1742001331u, 4255294047u, 3937382213u, 3214711843u, 4154762323u,
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2524082916u, 1539358875u, 3266819957u, 486407649u, 2928907069u, 1780885068u, 1513502316u, 1094664062u, 49805301u, 1338821763u,
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1546925160u, 4104496465u, 887481809u, 150073849u, 2473685474u, 1943591083u, 1395732834u, 1058346282u, 201589768u, 1388824469u,
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1696801606u, 1589887901u, 672667696u, 2711000631u, 251987210u, 3046808111u, 151455502u, 907153956u, 2608889883u, 1038279391u,
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652995533u, 1764173646u, 3451040383u, 2675275242u, 453576978u, 2659418909u, 1949051992u, 773462580u, 756751158u, 2993581788u,
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3998898868u, 4221608027u, 4132590244u, 1295727478u, 1641469623u, 3467883389u, 2066295122u, 1055122397u, 1898917726u, 2542044179u,
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4115878822u, 1758581177u, 0u, 753790401u, 1612718144u, 536673507u, 3367088505u, 3982187446u, 3194645204u, 1187761037u,
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3653156455u, 1262041458u, 3729410708u, 3561770136u, 3898103984u, 1255133061u, 1808847035u, 720367557u, 3853167183u, 385612781u,
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3309519750u, 3612167578u, 1429418854u, 2491778321u, 3477423498u, 284817897u, 100794884u, 2172616702u, 4031795360u, 1144798328u,
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3131023141u, 3819481163u, 4082192802u, 4272137053u, 3225436288u, 2324664069u, 2912064063u, 3164445985u, 1211644016u, 83228145u,
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3753688163u, 3249976951u, 1977277103u, 1663115586u, 806359072u, 452984805u, 250868733u, 1842533055u, 1288555905u, 336333848u,
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890442534u, 804056259u, 3781124030u, 2727843637u, 3427026056u, 957814574u, 1472513171u, 4071073621u, 2189328124u, 1195195770u,
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2892260552u, 3881655738u, 723065138u, 2507371494u, 2690670784u, 2558624025u, 3511635870u, 2145180835u, 1713513028u, 2116692564u,
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2878378043u, 2206763019u, 3393603212u, 703524551u, 3552098411u, 1007948840u, 2044649127u, 3797835452u, 487262998u, 1994120109u,
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1004593371u, 1446130276u, 1312438900u, 503974420u, 3679013266u, 168166924u, 1814307912u, 3831258296u, 1573044895u, 1859376061u,
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4021070915u, 2791465668u, 2828112185u, 2761266481u, 937747667u, 2339994098u, 854058965u, 1137232011u, 1496790894u, 3077402074u,
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2358086913u, 1691735473u, 3528347292u, 3769215305u, 3027004632u, 4199962284u, 133494003u, 636152527u, 2942657994u, 2390391540u,
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3920539207u, 403179536u, 3585784431u, 2289596656u, 1864705354u, 1915629148u, 605822008u, 4054230615u, 3350508659u, 1371981463u,
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602466507u, 2094914977u, 2624877800u, 555687742u, 3712699286u, 3703422305u, 2257292045u, 2240449039u, 2423288032u, 1111375484u,
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3300242801u, 2858837708u, 3628615824u, 84083462u, 32962295u, 302911004u, 2741068226u, 1597322602u, 4183250862u, 3501832553u,
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2441512471u, 1489093017u, 656219450u, 3114180135u, 954327513u, 335083755u, 3013122091u, 856756514u, 3144247762u, 1893325225u,
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2307821063u, 2811532339u, 3063651117u, 572399164u, 2458355477u, 552200649u, 1238290055u, 4283782570u, 2015897680u, 2061492133u,
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2408352771u, 4171342169u, 2156497161u, 386731290u, 3669999461u, 837215959u, 3326231172u, 3093850320u, 3275833730u, 2962856233u,
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1999449434u, 286199582u, 3417354363u, 4233385128u, 3602627437u, 974525996u
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};
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private static readonly uint[] T1 = new uint[256]
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{
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1667483301u, 2088564868u, 2004348569u, 2071721613u, 4076011277u, 1802229437u, 1869602481u, 3318059348u, 808476752u, 16843267u,
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1734856361u, 724260477u, 4278118169u, 3621238114u, 2880130534u, 1987505306u, 3402272581u, 2189565853u, 3385428288u, 2105408135u,
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4210749205u, 1499050731u, 1195871945u, 4042324747u, 2913812972u, 3570709351u, 2728550397u, 2947499498u, 2627478463u, 2762232823u,
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1920132246u, 3233848155u, 3082253762u, 4261273884u, 2475900334u, 640044138u, 909536346u, 1061125697u, 4160222466u, 3435955023u,
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875849820u, 2779075060u, 3857043764u, 4059166984u, 1903288979u, 3638078323u, 825320019u, 353708607u, 67373068u, 3351745874u,
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589514341u, 3284376926u, 404238376u, 2526427041u, 84216335u, 2593796021u, 117902857u, 303178806u, 2155879323u, 3806519101u,
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3958099238u, 656887401u, 2998042573u, 1970662047u, 151589403u, 2206408094u, 741103732u, 437924910u, 454768173u, 1852759218u,
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1515893998u, 2694863867u, 1381147894u, 993752653u, 3604395873u, 3014884814u, 690573947u, 3823361342u, 791633521u, 2223248279u,
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1397991157u, 3520182632u, 0u, 3991781676u, 538984544u, 4244431647u, 2981198280u, 1532737261u, 1785386174u, 3419114822u,
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3200149465u, 960066123u, 1246401758u, 1280088276u, 1482207464u, 3486483786u, 3503340395u, 4025468202u, 2863288293u, 4227591446u,
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1128498885u, 1296931543u, 859006549u, 2240090516u, 1162185423u, 4193904912u, 33686534u, 2139094657u, 1347461360u, 1010595908u,
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2678007226u, 2829601763u, 1364304627u, 2745392638u, 1077969088u, 2408514954u, 2459058093u, 2644320700u, 943222856u, 4126535940u,
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3166462943u, 3065411521u, 3671764853u, 555827811u, 269492272u, 4294960410u, 4092853518u, 3537026925u, 3452797260u, 202119188u,
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320022069u, 3974939439u, 1600110305u, 2543269282u, 1145342156u, 387395129u, 3301217111u, 2812761586u, 2122251394u, 1027439175u,
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1684326572u, 1566423783u, 421081643u, 1936975509u, 1616953504u, 2172721560u, 1330618065u, 3705447295u, 572671078u, 707417214u,
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2425371563u, 2290617219u, 1179028682u, 4008625961u, 3099093971u, 336865340u, 3739133817u, 1583267042u, 185275933u, 3688607094u,
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3772832571u, 842163286u, 976909390u, 168432670u, 1229558491u, 101059594u, 606357612u, 1549580516u, 3267534685u, 3553869166u,
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2896970735u, 1650640038u, 2442213800u, 2509582756u, 3840201527u, 2038035083u, 3890730290u, 3368586051u, 926379609u, 1835915959u,
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2374828428u, 3587551588u, 1313774802u, 2846444000u, 1819072692u, 1448520954u, 4109693703u, 3941256997u, 1701169839u, 2054878350u,
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2930657257u, 134746136u, 3132780501u, 2021191816u, 623200879u, 774790258u, 471611428u, 2795919345u, 3031724999u, 3334903633u,
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3907570467u, 3722289532u, 1953818780u, 522141217u, 1263245021u, 3183305180u, 2341145990u, 2324303749u, 1886445712u, 1044282434u,
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3048567236u, 1718013098u, 1212715224u, 50529797u, 4143380225u, 235805714u, 1633796771u, 892693087u, 1465364217u, 3115936208u,
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2256934801u, 3250690392u, 488454695u, 2661164985u, 3789674808u, 4177062675u, 2560109491u, 286335539u, 1768542907u, 3654920560u,
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2391672713u, 2492740519u, 2610638262u, 505297954u, 2273777042u, 3924412704u, 3469641545u, 1431677695u, 673730680u, 3755976058u,
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2357986191u, 2711706104u, 2307459456u, 218962455u, 3216991706u, 3873888049u, 1111655622u, 1751699640u, 1094812355u, 2576951728u,
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757946999u, 252648977u, 2964356043u, 1414834428u, 3149622742u, 370551866u
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};
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private static readonly uint[] T2 = new uint[256]
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{
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1673962851u, 2096661628u, 2012125559u, 2079755643u, 4076801522u, 1809235307u, 1876865391u, 3314635973u, 811618352u, 16909057u,
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1741597031u, 727088427u, 4276558334u, 3618988759u, 2874009259u, 1995217526u, 3398387146u, 2183110018u, 3381215433u, 2113570685u,
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4209972730u, 1504897881u, 1200539975u, 4042984432u, 2906778797u, 3568527316u, 2724199842u, 2940594863u, 2619588508u, 2756966308u,
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1927583346u, 3231407040u, 3077948087u, 4259388669u, 2470293139u, 642542118u, 913070646u, 1065238847u, 4160029431u, 3431157708u,
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879254580u, 2773611685u, 3855693029u, 4059629809u, 1910674289u, 3635114968u, 828527409u, 355090197u, 67636228u, 3348452039u,
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591815971u, 3281870531u, 405809176u, 2520228246u, 84545285u, 2586817946u, 118360327u, 304363026u, 2149292928u, 3806281186u,
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3956090603u, 659450151u, 2994720178u, 1978310517u, 152181513u, 2199756419u, 743994412u, 439627290u, 456535323u, 1859957358u,
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1521806938u, 2690382752u, 1386542674u, 997608763u, 3602342358u, 3011366579u, 693271337u, 3822927587u, 794718511u, 2215876484u,
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1403450707u, 3518589137u, 0u, 3988860141u, 541089824u, 4242743292u, 2977548465u, 1538714971u, 1792327274u, 3415033547u,
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3194476990u, 963791673u, 1251270218u, 1285084236u, 1487988824u, 3481619151u, 3501943760u, 4022676207u, 2857362858u, 4226619131u,
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1132905795u, 1301993293u, 862344499u, 2232521861u, 1166724933u, 4192801017u, 33818114u, 2147385727u, 1352724560u, 1014514748u,
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2670049951u, 2823545768u, 1369633617u, 2740846243u, 1082179648u, 2399505039u, 2453646738u, 2636233885u, 946882616u, 4126213365u,
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3160661948u, 3061301686u, 3668932058u, 557998881u, 270544912u, 4293204735u, 4093447923u, 3535760850u, 3447803085u, 202904588u,
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321271059u, 3972214764u, 1606345055u, 2536874647u, 1149815876u, 388905239u, 3297990596u, 2807427751u, 2130477694u, 1031423805u,
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|
1690872932u, 1572530013u, 422718233u, 1944491379u, 1623236704u, 2165938305u, 1335808335u, 3701702620u, 574907938u, 710180394u,
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|
2419829648u, 2282455944u, 1183631942u, 4006029806u, 3094074296u, 338181140u, 3735517662u, 1589437022u, 185998603u, 3685578459u,
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|
3772464096u, 845436466u, 980700730u, 169090570u, 1234361161u, 101452294u, 608726052u, 1555620956u, 3265224130u, 3552407251u,
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|
2890133420u, 1657054818u, 2436475025u, 2503058581u, 3839047652u, 2045938553u, 3889509095u, 3364570056u, 929978679u, 1843050349u,
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|
2365688973u, 3585172693u, 1318900302u, 2840191145u, 1826141292u, 1454176854u, 4109567988u, 3939444202u, 1707781989u, 2062847610u,
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|
2923948462u, 135272456u, 3127891386u, 2029029496u, 625635109u, 777810478u, 473441308u, 2790781350u, 3027486644u, 3331805638u,
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3905627112u, 3718347997u, 1961401460u, 524165407u, 1268178251u, 3177307325u, 2332919435u, 2316273034u, 1893765232u, 1048330814u,
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|
3044132021u, 1724688998u, 1217452104u, 50726147u, 4143383030u, 236720654u, 1640145761u, 896163637u, 1471084887u, 3110719673u,
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|
2249691526u, 3248052417u, 490350365u, 2653403550u, 3789109473u, 4176155640u, 2553000856u, 287453969u, 1775418217u, 3651760345u,
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|
2382858638u, 2486413204u, 2603464347u, 507257374u, 2266337927u, 3922272489u, 3464972750u, 1437269845u, 676362280u, 3752164063u,
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|
2349043596u, 2707028129u, 2299101321u, 219813645u, 3211123391u, 3872862694u, 1115997762u, 1758509160u, 1099088705u, 2569646233u,
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760903469u, 253628687u, 2960903088u, 1420360788u, 3144537787u, 371997206u
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};
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private static readonly uint[] T3 = new uint[256]
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{
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3332727651u, 4169432188u, 4003034999u, 4136467323u, 4279104242u, 3602738027u, 3736170351u, 2438251973u, 1615867952u, 33751297u,
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|
3467208551u, 1451043627u, 3877240574u, 3043153879u, 1306962859u, 3969545846u, 2403715786u, 530416258u, 2302724553u, 4203183485u,
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4011195130u, 3001768281u, 2395555655u, 4211863792u, 1106029997u, 3009926356u, 1610457762u, 1173008303u, 599760028u, 1408738468u,
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3835064946u, 2606481600u, 1975695287u, 3776773629u, 1034851219u, 1282024998u, 1817851446u, 2118205247u, 4110612471u, 2203045068u,
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1750873140u, 1374987685u, 3509904869u, 4178113009u, 3801313649u, 2876496088u, 1649619249u, 708777237u, 135005188u, 2505230279u,
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1181033251u, 2640233411u, 807933976u, 933336726u, 168756485u, 800430746u, 235472647u, 607523346u, 463175808u, 3745374946u,
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3441880043u, 1315514151u, 2144187058u, 3936318837u, 303761673u, 496927619u, 1484008492u, 875436570u, 908925723u, 3702681198u,
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3035519578u, 1543217312u, 2767606354u, 1984772923u, 3076642518u, 2110698419u, 1383803177u, 3711886307u, 1584475951u, 328696964u,
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2801095507u, 3110654417u, 0u, 3240947181u, 1080041504u, 3810524412u, 2043195825u, 3069008731u, 3569248874u, 2370227147u,
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|
1742323390u, 1917532473u, 2497595978u, 2564049996u, 2968016984u, 2236272591u, 3144405200u, 3307925487u, 1340451498u, 3977706491u,
|
|
2261074755u, 2597801293u, 1716859699u, 294946181u, 2328839493u, 3910203897u, 67502594u, 4269899647u, 2700103760u, 2017737788u,
|
|
632987551u, 1273211048u, 2733855057u, 1576969123u, 2160083008u, 92966799u, 1068339858u, 566009245u, 1883781176u, 4043634165u,
|
|
1675607228u, 2009183926u, 2943736538u, 1113792801u, 540020752u, 3843751935u, 4245615603u, 3211645650u, 2169294285u, 403966988u,
|
|
641012499u, 3274697964u, 3202441055u, 899848087u, 2295088196u, 775493399u, 2472002756u, 1441965991u, 4236410494u, 2051489085u,
|
|
3366741092u, 3135724893u, 841685273u, 3868554099u, 3231735904u, 429425025u, 2664517455u, 2743065820u, 1147544098u, 1417554474u,
|
|
1001099408u, 193169544u, 2362066502u, 3341414126u, 1809037496u, 675025940u, 2809781982u, 3168951902u, 371002123u, 2910247899u,
|
|
3678134496u, 1683370546u, 1951283770u, 337512970u, 2463844681u, 201983494u, 1215046692u, 3101973596u, 2673722050u, 3178157011u,
|
|
1139780780u, 3299238498u, 967348625u, 832869781u, 3543655652u, 4069226873u, 3576883175u, 2336475336u, 1851340599u, 3669454189u,
|
|
25988493u, 2976175573u, 2631028302u, 1239460265u, 3635702892u, 2902087254u, 4077384948u, 3475368682u, 3400492389u, 4102978170u,
|
|
1206496942u, 270010376u, 1876277946u, 4035475576u, 1248797989u, 1550986798u, 941890588u, 1475454630u, 1942467764u, 2538718918u,
|
|
3408128232u, 2709315037u, 3902567540u, 1042358047u, 2531085131u, 1641856445u, 226921355u, 260409994u, 3767562352u, 2084716094u,
|
|
1908716981u, 3433719398u, 2430093384u, 100991747u, 4144101110u, 470945294u, 3265487201u, 1784624437u, 2935576407u, 1775286713u,
|
|
395413126u, 2572730817u, 975641885u, 666476190u, 3644383713u, 3943954680u, 733190296u, 573772049u, 3535497577u, 2842745305u,
|
|
126455438u, 866620564u, 766942107u, 1008868894u, 361924487u, 3374377449u, 2269761230u, 2868860245u, 1350051880u, 2776293343u,
|
|
59739276u, 1509466529u, 159418761u, 437718285u, 1708834751u, 3610371814u, 2227585602u, 3501746280u, 2193834305u, 699439513u,
|
|
1517759789u, 504434447u, 2076946608u, 2835108948u, 1842789307u, 742004246u
|
|
};
|
|
|
|
private static readonly uint[] Tinv0 = new uint[256]
|
|
{
|
|
1353184337u, 1399144830u, 3282310938u, 2522752826u, 3412831035u, 4047871263u, 2874735276u, 2466505547u, 1442459680u, 4134368941u,
|
|
2440481928u, 625738485u, 4242007375u, 3620416197u, 2151953702u, 2409849525u, 1230680542u, 1729870373u, 2551114309u, 3787521629u,
|
|
41234371u, 317738113u, 2744600205u, 3338261355u, 3881799427u, 2510066197u, 3950669247u, 3663286933u, 763608788u, 3542185048u,
|
|
694804553u, 1154009486u, 1787413109u, 2021232372u, 1799248025u, 3715217703u, 3058688446u, 397248752u, 1722556617u, 3023752829u,
|
|
407560035u, 2184256229u, 1613975959u, 1165972322u, 3765920945u, 2226023355u, 480281086u, 2485848313u, 1483229296u, 436028815u,
|
|
2272059028u, 3086515026u, 601060267u, 3791801202u, 1468997603u, 715871590u, 120122290u, 63092015u, 2591802758u, 2768779219u,
|
|
4068943920u, 2997206819u, 3127509762u, 1552029421u, 723308426u, 2461301159u, 4042393587u, 2715969870u, 3455375973u, 3586000134u,
|
|
526529745u, 2331944644u, 2639474228u, 2689987490u, 853641733u, 1978398372u, 971801355u, 2867814464u, 111112542u, 1360031421u,
|
|
4186579262u, 1023860118u, 2919579357u, 1186850381u, 3045938321u, 90031217u, 1876166148u, 4279586912u, 620468249u, 2548678102u,
|
|
3426959497u, 2006899047u, 3175278768u, 2290845959u, 945494503u, 3689859193u, 1191869601u, 3910091388u, 3374220536u, 0u,
|
|
2206629897u, 1223502642u, 2893025566u, 1316117100u, 4227796733u, 1446544655u, 517320253u, 658058550u, 1691946762u, 564550760u,
|
|
3511966619u, 976107044u, 2976320012u, 266819475u, 3533106868u, 2660342555u, 1338359936u, 2720062561u, 1766553434u, 370807324u,
|
|
179999714u, 3844776128u, 1138762300u, 488053522u, 185403662u, 2915535858u, 3114841645u, 3366526484u, 2233069911u, 1275557295u,
|
|
3151862254u, 4250959779u, 2670068215u, 3170202204u, 3309004356u, 880737115u, 1982415755u, 3703972811u, 1761406390u, 1676797112u,
|
|
3403428311u, 277177154u, 1076008723u, 538035844u, 2099530373u, 4164795346u, 288553390u, 1839278535u, 1261411869u, 4080055004u,
|
|
3964831245u, 3504587127u, 1813426987u, 2579067049u, 4199060497u, 577038663u, 3297574056u, 440397984u, 3626794326u, 4019204898u,
|
|
3343796615u, 3251714265u, 4272081548u, 906744984u, 3481400742u, 685669029u, 646887386u, 2764025151u, 3835509292u, 227702864u,
|
|
2613862250u, 1648787028u, 3256061430u, 3904428176u, 1593260334u, 4121936770u, 3196083615u, 2090061929u, 2838353263u, 3004310991u,
|
|
999926984u, 2809993232u, 1852021992u, 2075868123u, 158869197u, 4095236462u, 28809964u, 2828685187u, 1701746150u, 2129067946u,
|
|
147831841u, 3873969647u, 3650873274u, 3459673930u, 3557400554u, 3598495785u, 2947720241u, 824393514u, 815048134u, 3227951669u,
|
|
935087732u, 2798289660u, 2966458592u, 366520115u, 1251476721u, 4158319681u, 240176511u, 804688151u, 2379631990u, 1303441219u,
|
|
1414376140u, 3741619940u, 3820343710u, 461924940u, 3089050817u, 2136040774u, 82468509u, 1563790337u, 1937016826u, 776014843u,
|
|
1511876531u, 1389550482u, 861278441u, 323475053u, 2355222426u, 2047648055u, 2383738969u, 2302415851u, 3995576782u, 902390199u,
|
|
3991215329u, 1018251130u, 1507840668u, 1064563285u, 2043548696u, 3208103795u, 3939366739u, 1537932639u, 342834655u, 2262516856u,
|
|
2180231114u, 1053059257u, 741614648u, 1598071746u, 1925389590u, 203809468u, 2336832552u, 1100287487u, 1895934009u, 3736275976u,
|
|
2632234200u, 2428589668u, 1636092795u, 1890988757u, 1952214088u, 1113045200u
|
|
};
|
|
|
|
private static readonly uint[] Tinv1 = new uint[256]
|
|
{
|
|
2817806672u, 1698790995u, 2752977603u, 1579629206u, 1806384075u, 1167925233u, 1492823211u, 65227667u, 4197458005u, 1836494326u,
|
|
1993115793u, 1275262245u, 3622129660u, 3408578007u, 1144333952u, 2741155215u, 1521606217u, 465184103u, 250234264u, 3237895649u,
|
|
1966064386u, 4031545618u, 2537983395u, 4191382470u, 1603208167u, 2626819477u, 2054012907u, 1498584538u, 2210321453u, 561273043u,
|
|
1776306473u, 3368652356u, 2311222634u, 2039411832u, 1045993835u, 1907959773u, 1340194486u, 2911432727u, 2887829862u, 986611124u,
|
|
1256153880u, 823846274u, 860985184u, 2136171077u, 2003087840u, 2926295940u, 2692873756u, 722008468u, 1749577816u, 4249194265u,
|
|
1826526343u, 4168831671u, 3547573027u, 38499042u, 2401231703u, 2874500650u, 686535175u, 3266653955u, 2076542618u, 137876389u,
|
|
2267558130u, 2780767154u, 1778582202u, 2182540636u, 483363371u, 3027871634u, 4060607472u, 3798552225u, 4107953613u, 3188000469u,
|
|
1647628575u, 4272342154u, 1395537053u, 1442030240u, 3783918898u, 3958809717u, 3968011065u, 4016062634u, 2675006982u, 275692881u,
|
|
2317434617u, 115185213u, 88006062u, 3185986886u, 2371129781u, 1573155077u, 3557164143u, 357589247u, 4221049124u, 3921532567u,
|
|
1128303052u, 2665047927u, 1122545853u, 2341013384u, 1528424248u, 4006115803u, 175939911u, 256015593u, 512030921u, 0u,
|
|
2256537987u, 3979031112u, 1880170156u, 1918528590u, 4279172603u, 948244310u, 3584965918u, 959264295u, 3641641572u, 2791073825u,
|
|
1415289809u, 775300154u, 1728711857u, 3881276175u, 2532226258u, 2442861470u, 3317727311u, 551313826u, 1266113129u, 437394454u,
|
|
3130253834u, 715178213u, 3760340035u, 387650077u, 218697227u, 3347837613u, 2830511545u, 2837320904u, 435246981u, 125153100u,
|
|
3717852859u, 1618977789u, 637663135u, 4117912764u, 996558021u, 2130402100u, 692292470u, 3324234716u, 4243437160u, 4058298467u,
|
|
3694254026u, 2237874704u, 580326208u, 298222624u, 608863613u, 1035719416u, 855223825u, 2703869805u, 798891339u, 817028339u,
|
|
1384517100u, 3821107152u, 380840812u, 3111168409u, 1217663482u, 1693009698u, 2365368516u, 1072734234u, 746411736u, 2419270383u,
|
|
1313441735u, 3510163905u, 2731183358u, 198481974u, 2180359887u, 3732579624u, 2394413606u, 3215802276u, 2637835492u, 2457358349u,
|
|
3428805275u, 1182684258u, 328070850u, 3101200616u, 4147719774u, 2948825845u, 2153619390u, 2479909244u, 768962473u, 304467891u,
|
|
2578237499u, 2098729127u, 1671227502u, 3141262203u, 2015808777u, 408514292u, 3080383489u, 2588902312u, 1855317605u, 3875515006u,
|
|
3485212936u, 3893751782u, 2615655129u, 913263310u, 161475284u, 2091919830u, 2997105071u, 591342129u, 2493892144u, 1721906624u,
|
|
3159258167u, 3397581990u, 3499155632u, 3634836245u, 2550460746u, 3672916471u, 1355644686u, 4136703791u, 3595400845u, 2968470349u,
|
|
1303039060u, 76997855u, 3050413795u, 2288667675u, 523026872u, 1365591679u, 3932069124u, 898367837u, 1955068531u, 1091304238u,
|
|
493335386u, 3537605202u, 1443948851u, 1205234963u, 1641519756u, 211892090u, 351820174u, 1007938441u, 665439982u, 3378624309u,
|
|
3843875309u, 2974251580u, 3755121753u, 1945261375u, 3457423481u, 935818175u, 3455538154u, 2868731739u, 1866325780u, 3678697606u,
|
|
4088384129u, 3295197502u, 874788908u, 1084473951u, 3273463410u, 635616268u, 1228679307u, 2500722497u, 27801969u, 3003910366u,
|
|
3837057180u, 3243664528u, 2227927905u, 3056784752u, 1550600308u, 1471729730u
|
|
};
|
|
|
|
private static readonly uint[] Tinv2 = new uint[256]
|
|
{
|
|
4098969767u, 1098797925u, 387629988u, 658151006u, 2872822635u, 2636116293u, 4205620056u, 3813380867u, 807425530u, 1991112301u,
|
|
3431502198u, 49620300u, 3847224535u, 717608907u, 891715652u, 1656065955u, 2984135002u, 3123013403u, 3930429454u, 4267565504u,
|
|
801309301u, 1283527408u, 1183687575u, 3547055865u, 2399397727u, 2450888092u, 1841294202u, 1385552473u, 3201576323u, 1951978273u,
|
|
3762891113u, 3381544136u, 3262474889u, 2398386297u, 1486449470u, 3106397553u, 3787372111u, 2297436077u, 550069932u, 3464344634u,
|
|
3747813450u, 451248689u, 1368875059u, 1398949247u, 1689378935u, 1807451310u, 2180914336u, 150574123u, 1215322216u, 1167006205u,
|
|
3734275948u, 2069018616u, 1940595667u, 1265820162u, 534992783u, 1432758955u, 3954313000u, 3039757250u, 3313932923u, 936617224u,
|
|
674296455u, 3206787749u, 50510442u, 384654466u, 3481938716u, 2041025204u, 133427442u, 1766760930u, 3664104948u, 84334014u,
|
|
886120290u, 2797898494u, 775200083u, 4087521365u, 2315596513u, 4137973227u, 2198551020u, 1614850799u, 1901987487u, 1857900816u,
|
|
557775242u, 3717610758u, 1054715397u, 3863824061u, 1418835341u, 3295741277u, 100954068u, 1348534037u, 2551784699u, 3184957417u,
|
|
1082772547u, 3647436702u, 3903896898u, 2298972299u, 434583643u, 3363429358u, 2090944266u, 1115482383u, 2230896926u, 0u,
|
|
2148107142u, 724715757u, 287222896u, 1517047410u, 251526143u, 2232374840u, 2923241173u, 758523705u, 252339417u, 1550328230u,
|
|
1536938324u, 908343854u, 168604007u, 1469255655u, 4004827798u, 2602278545u, 3229634501u, 3697386016u, 2002413899u, 303830554u,
|
|
2481064634u, 2696996138u, 574374880u, 454171927u, 151915277u, 2347937223u, 3056449960u, 504678569u, 4049044761u, 1974422535u,
|
|
2582559709u, 2141453664u, 33005350u, 1918680309u, 1715782971u, 4217058430u, 1133213225u, 600562886u, 3988154620u, 3837289457u,
|
|
836225756u, 1665273989u, 2534621218u, 3330547729u, 1250262308u, 3151165501u, 4188934450u, 700935585u, 2652719919u, 3000824624u,
|
|
2249059410u, 3245854947u, 3005967382u, 1890163129u, 2484206152u, 3913753188u, 4238918796u, 4037024319u, 2102843436u, 857927568u,
|
|
1233635150u, 953795025u, 3398237858u, 3566745099u, 4121350017u, 2057644254u, 3084527246u, 2906629311u, 976020637u, 2018512274u,
|
|
1600822220u, 2119459398u, 2381758995u, 3633375416u, 959340279u, 3280139695u, 1570750080u, 3496574099u, 3580864813u, 634368786u,
|
|
2898803609u, 403744637u, 2632478307u, 1004239803u, 650971512u, 1500443672u, 2599158199u, 1334028442u, 2514904430u, 4289363686u,
|
|
3156281551u, 368043752u, 3887782299u, 1867173430u, 2682967049u, 2955531900u, 2754719666u, 1059729699u, 2781229204u, 2721431654u,
|
|
1316239292u, 2197595850u, 2430644432u, 2805143000u, 82922136u, 3963746266u, 3447656016u, 2434215926u, 1299615190u, 4014165424u,
|
|
2865517645u, 2531581700u, 3516851125u, 1783372680u, 750893087u, 1699118929u, 1587348714u, 2348899637u, 2281337716u, 201010753u,
|
|
1739807261u, 3683799762u, 283718486u, 3597472583u, 3617229921u, 2704767500u, 4166618644u, 334203196u, 2848910887u, 1639396809u,
|
|
484568549u, 1199193265u, 3533461983u, 4065673075u, 337148366u, 3346251575u, 4149471949u, 4250885034u, 1038029935u, 1148749531u,
|
|
2949284339u, 1756970692u, 607661108u, 2747424576u, 488010435u, 3803974693u, 1009290057u, 234832277u, 2822336769u, 201907891u,
|
|
3034094820u, 1449431233u, 3413860740u, 852848822u, 1816687708u, 3100656215u
|
|
};
|
|
|
|
private static readonly uint[] Tinv3 = new uint[256]
|
|
{
|
|
1364240372u, 2119394625u, 449029143u, 982933031u, 1003187115u, 535905693u, 2896910586u, 1267925987u, 542505520u, 2918608246u,
|
|
2291234508u, 4112862210u, 1341970405u, 3319253802u, 645940277u, 3046089570u, 3729349297u, 627514298u, 1167593194u, 1575076094u,
|
|
3271718191u, 2165502028u, 2376308550u, 1808202195u, 65494927u, 362126482u, 3219880557u, 2514114898u, 3559752638u, 1490231668u,
|
|
1227450848u, 2386872521u, 1969916354u, 4101536142u, 2573942360u, 668823993u, 3199619041u, 4028083592u, 3378949152u, 2108963534u,
|
|
1662536415u, 3850514714u, 2539664209u, 1648721747u, 2984277860u, 3146034795u, 4263288961u, 4187237128u, 1884842056u, 2400845125u,
|
|
2491903198u, 1387788411u, 2871251827u, 1927414347u, 3814166303u, 1714072405u, 2986813675u, 788775605u, 2258271173u, 3550808119u,
|
|
821200680u, 598910399u, 45771267u, 3982262806u, 2318081231u, 2811409529u, 4092654087u, 1319232105u, 1707996378u, 114671109u,
|
|
3508494900u, 3297443494u, 882725678u, 2728416755u, 87220618u, 2759191542u, 188345475u, 1084944224u, 1577492337u, 3176206446u,
|
|
1056541217u, 2520581853u, 3719169342u, 1296481766u, 2444594516u, 1896177092u, 74437638u, 1627329872u, 421854104u, 3600279997u,
|
|
2311865152u, 1735892697u, 2965193448u, 126389129u, 3879230233u, 2044456648u, 2705787516u, 2095648578u, 4173930116u, 0u,
|
|
159614592u, 843640107u, 514617361u, 1817080410u, 4261150478u, 257308805u, 1025430958u, 908540205u, 174381327u, 1747035740u,
|
|
2614187099u, 607792694u, 212952842u, 2467293015u, 3033700078u, 463376795u, 2152711616u, 1638015196u, 1516850039u, 471210514u,
|
|
3792353939u, 3236244128u, 1011081250u, 303896347u, 235605257u, 4071475083u, 767142070u, 348694814u, 1468340721u, 2940995445u,
|
|
4005289369u, 2751291519u, 4154402305u, 1555887474u, 1153776486u, 1530167035u, 2339776835u, 3420243491u, 3060333805u, 3093557732u,
|
|
3620396081u, 1108378979u, 322970263u, 2216694214u, 2239571018u, 3539484091u, 2920362745u, 3345850665u, 491466654u, 3706925234u,
|
|
233591430u, 2010178497u, 728503987u, 2845423984u, 301615252u, 1193436393u, 2831453436u, 2686074864u, 1457007741u, 586125363u,
|
|
2277985865u, 3653357880u, 2365498058u, 2553678804u, 2798617077u, 2770919034u, 3659959991u, 1067761581u, 753179962u, 1343066744u,
|
|
1788595295u, 1415726718u, 4139914125u, 2431170776u, 777975609u, 2197139395u, 2680062045u, 1769771984u, 1873358293u, 3484619301u,
|
|
3359349164u, 279411992u, 3899548572u, 3682319163u, 3439949862u, 1861490777u, 3959535514u, 2208864847u, 3865407125u, 2860443391u,
|
|
554225596u, 4024887317u, 3134823399u, 1255028335u, 3939764639u, 701922480u, 833598116u, 707863359u, 3325072549u, 901801634u,
|
|
1949809742u, 4238789250u, 3769684112u, 857069735u, 4048197636u, 1106762476u, 2131644621u, 389019281u, 1989006925u, 1129165039u,
|
|
3428076970u, 3839820950u, 2665723345u, 1276872810u, 3250069292u, 1182749029u, 2634345054u, 22885772u, 4201870471u, 4214112523u,
|
|
3009027431u, 2454901467u, 3912455696u, 1829980118u, 2592891351u, 930745505u, 1502483704u, 3951639571u, 3471714217u, 3073755489u,
|
|
3790464284u, 2050797895u, 2623135698u, 1430221810u, 410635796u, 1941911495u, 1407897079u, 1599843069u, 3742658365u, 2022103876u,
|
|
3397514159u, 3107898472u, 942421028u, 3261022371u, 376619805u, 3154912738u, 680216892u, 4282488077u, 963707304u, 148812556u,
|
|
3634160820u, 1687208278u, 2069988555u, 3580933682u, 1215585388u, 3494008760u
|
|
};
|
|
|
|
private int ROUNDS;
|
|
|
|
private uint[][] WorkingKey;
|
|
|
|
private uint C0;
|
|
|
|
private uint C1;
|
|
|
|
private uint C2;
|
|
|
|
private uint C3;
|
|
|
|
private bool forEncryption;
|
|
|
|
public virtual string AlgorithmName => "AES";
|
|
|
|
public virtual bool IsPartialBlockOkay => false;
|
|
|
|
private static uint Shift(uint r, int shift)
|
|
{
|
|
return (r >> shift) | (r << 32 - shift);
|
|
}
|
|
|
|
private static uint FFmulX(uint x)
|
|
{
|
|
return ((x & 0x7F7F7F7F) << 1) ^ (((x & 0x80808080u) >> 7) * 27);
|
|
}
|
|
|
|
private static uint FFmulX2(uint x)
|
|
{
|
|
uint num = (x & 0x3F3F3F3F) << 2;
|
|
uint num2 = x & 0xC0C0C0C0u;
|
|
num2 ^= num2 >> 1;
|
|
return num ^ (num2 >> 2) ^ (num2 >> 5);
|
|
}
|
|
|
|
private static uint Inv_Mcol(uint x)
|
|
{
|
|
uint num = x;
|
|
uint num2 = num ^ Shift(num, 8);
|
|
num ^= FFmulX(num2);
|
|
num2 ^= FFmulX2(num);
|
|
return num ^ (num2 ^ Shift(num2, 16));
|
|
}
|
|
|
|
private static uint SubWord(uint x)
|
|
{
|
|
return (uint)(S[x & 0xFF] | (S[(x >> 8) & 0xFF] << 8) | (S[(x >> 16) & 0xFF] << 16) | (S[(x >> 24) & 0xFF] << 24));
|
|
}
|
|
|
|
private uint[][] GenerateWorkingKey(byte[] key, bool forEncryption)
|
|
{
|
|
int num = key.Length;
|
|
if (num < 16 || num > 32 || (num & 7) != 0)
|
|
{
|
|
throw new ArgumentException("Key length not 128/192/256 bits.");
|
|
}
|
|
int num2 = num >> 2;
|
|
ROUNDS = num2 + 6;
|
|
uint[][] array = new uint[ROUNDS + 1][];
|
|
for (int i = 0; i <= ROUNDS; i++)
|
|
{
|
|
array[i] = new uint[4];
|
|
}
|
|
switch (num2)
|
|
{
|
|
case 4:
|
|
{
|
|
uint num21 = Pack.LE_To_UInt32(key, 0);
|
|
array[0][0] = num21;
|
|
uint num22 = Pack.LE_To_UInt32(key, 4);
|
|
array[0][1] = num22;
|
|
uint num23 = Pack.LE_To_UInt32(key, 8);
|
|
array[0][2] = num23;
|
|
uint num24 = Pack.LE_To_UInt32(key, 12);
|
|
array[0][3] = num24;
|
|
for (int l = 1; l <= 10; l++)
|
|
{
|
|
uint num25 = SubWord(Shift(num24, 8)) ^ rcon[l - 1];
|
|
num21 ^= num25;
|
|
array[l][0] = num21;
|
|
num22 ^= num21;
|
|
array[l][1] = num22;
|
|
num23 ^= num22;
|
|
array[l][2] = num23;
|
|
num24 ^= num23;
|
|
array[l][3] = num24;
|
|
}
|
|
break;
|
|
}
|
|
case 6:
|
|
{
|
|
uint num13 = Pack.LE_To_UInt32(key, 0);
|
|
array[0][0] = num13;
|
|
uint num14 = Pack.LE_To_UInt32(key, 4);
|
|
array[0][1] = num14;
|
|
uint num15 = Pack.LE_To_UInt32(key, 8);
|
|
array[0][2] = num15;
|
|
uint num16 = Pack.LE_To_UInt32(key, 12);
|
|
array[0][3] = num16;
|
|
uint num17 = Pack.LE_To_UInt32(key, 16);
|
|
array[1][0] = num17;
|
|
uint num18 = Pack.LE_To_UInt32(key, 20);
|
|
array[1][1] = num18;
|
|
uint num19 = 1u;
|
|
uint num20 = SubWord(Shift(num18, 8)) ^ num19;
|
|
num19 <<= 1;
|
|
num13 ^= num20;
|
|
array[1][2] = num13;
|
|
num14 ^= num13;
|
|
array[1][3] = num14;
|
|
num15 ^= num14;
|
|
array[2][0] = num15;
|
|
num16 ^= num15;
|
|
array[2][1] = num16;
|
|
num17 ^= num16;
|
|
array[2][2] = num17;
|
|
num18 ^= num17;
|
|
array[2][3] = num18;
|
|
for (int k = 3; k < 12; k += 3)
|
|
{
|
|
num20 = SubWord(Shift(num18, 8)) ^ num19;
|
|
num19 <<= 1;
|
|
num13 ^= num20;
|
|
array[k][0] = num13;
|
|
num14 ^= num13;
|
|
array[k][1] = num14;
|
|
num15 ^= num14;
|
|
array[k][2] = num15;
|
|
num16 ^= num15;
|
|
array[k][3] = num16;
|
|
num17 ^= num16;
|
|
array[k + 1][0] = num17;
|
|
num18 ^= num17;
|
|
array[k + 1][1] = num18;
|
|
num20 = SubWord(Shift(num18, 8)) ^ num19;
|
|
num19 <<= 1;
|
|
num13 ^= num20;
|
|
array[k + 1][2] = num13;
|
|
num14 ^= num13;
|
|
array[k + 1][3] = num14;
|
|
num15 ^= num14;
|
|
array[k + 2][0] = num15;
|
|
num16 ^= num15;
|
|
array[k + 2][1] = num16;
|
|
num17 ^= num16;
|
|
array[k + 2][2] = num17;
|
|
num18 ^= num17;
|
|
array[k + 2][3] = num18;
|
|
}
|
|
num20 = SubWord(Shift(num18, 8)) ^ num19;
|
|
num13 ^= num20;
|
|
array[12][0] = num13;
|
|
num14 ^= num13;
|
|
array[12][1] = num14;
|
|
num15 ^= num14;
|
|
array[12][2] = num15;
|
|
num16 ^= num15;
|
|
array[12][3] = num16;
|
|
break;
|
|
}
|
|
case 8:
|
|
{
|
|
uint num3 = Pack.LE_To_UInt32(key, 0);
|
|
array[0][0] = num3;
|
|
uint num4 = Pack.LE_To_UInt32(key, 4);
|
|
array[0][1] = num4;
|
|
uint num5 = Pack.LE_To_UInt32(key, 8);
|
|
array[0][2] = num5;
|
|
uint num6 = Pack.LE_To_UInt32(key, 12);
|
|
array[0][3] = num6;
|
|
uint num7 = Pack.LE_To_UInt32(key, 16);
|
|
array[1][0] = num7;
|
|
uint num8 = Pack.LE_To_UInt32(key, 20);
|
|
array[1][1] = num8;
|
|
uint num9 = Pack.LE_To_UInt32(key, 24);
|
|
array[1][2] = num9;
|
|
uint num10 = Pack.LE_To_UInt32(key, 28);
|
|
array[1][3] = num10;
|
|
uint num11 = 1u;
|
|
uint num12;
|
|
for (int j = 2; j < 14; j += 2)
|
|
{
|
|
num12 = SubWord(Shift(num10, 8)) ^ num11;
|
|
num11 <<= 1;
|
|
num3 ^= num12;
|
|
array[j][0] = num3;
|
|
num4 ^= num3;
|
|
array[j][1] = num4;
|
|
num5 ^= num4;
|
|
array[j][2] = num5;
|
|
num6 ^= num5;
|
|
array[j][3] = num6;
|
|
num12 = SubWord(num6);
|
|
num7 ^= num12;
|
|
array[j + 1][0] = num7;
|
|
num8 ^= num7;
|
|
array[j + 1][1] = num8;
|
|
num9 ^= num8;
|
|
array[j + 1][2] = num9;
|
|
num10 ^= num9;
|
|
array[j + 1][3] = num10;
|
|
}
|
|
num12 = SubWord(Shift(num10, 8)) ^ num11;
|
|
num3 ^= num12;
|
|
array[14][0] = num3;
|
|
num4 ^= num3;
|
|
array[14][1] = num4;
|
|
num5 ^= num4;
|
|
array[14][2] = num5;
|
|
num6 ^= num5;
|
|
array[14][3] = num6;
|
|
break;
|
|
}
|
|
default:
|
|
throw new InvalidOperationException("Should never get here");
|
|
}
|
|
if (!forEncryption)
|
|
{
|
|
for (int m = 1; m < ROUNDS; m++)
|
|
{
|
|
uint[] array2 = array[m];
|
|
for (int n = 0; n < 4; n++)
|
|
{
|
|
array2[n] = Inv_Mcol(array2[n]);
|
|
}
|
|
}
|
|
}
|
|
return array;
|
|
}
|
|
|
|
public virtual void Init(bool forEncryption, ICipherParameters parameters)
|
|
{
|
|
if (!(parameters is KeyParameter keyParameter))
|
|
{
|
|
throw new ArgumentException("invalid parameter passed to AES init - " + Platform.GetTypeName(parameters));
|
|
}
|
|
WorkingKey = GenerateWorkingKey(keyParameter.GetKey(), forEncryption);
|
|
this.forEncryption = forEncryption;
|
|
}
|
|
|
|
public virtual int GetBlockSize()
|
|
{
|
|
return 16;
|
|
}
|
|
|
|
public virtual int ProcessBlock(byte[] input, int inOff, byte[] output, int outOff)
|
|
{
|
|
if (WorkingKey == null)
|
|
{
|
|
throw new InvalidOperationException("AES engine not initialised");
|
|
}
|
|
Check.DataLength(input, inOff, 16, "input buffer too short");
|
|
Check.OutputLength(output, outOff, 16, "output buffer too short");
|
|
UnPackBlock(input, inOff);
|
|
if (forEncryption)
|
|
{
|
|
EncryptBlock(WorkingKey);
|
|
}
|
|
else
|
|
{
|
|
DecryptBlock(WorkingKey);
|
|
}
|
|
PackBlock(output, outOff);
|
|
return 16;
|
|
}
|
|
|
|
public virtual void Reset()
|
|
{
|
|
}
|
|
|
|
private void UnPackBlock(byte[] bytes, int off)
|
|
{
|
|
C0 = Pack.LE_To_UInt32(bytes, off);
|
|
C1 = Pack.LE_To_UInt32(bytes, off + 4);
|
|
C2 = Pack.LE_To_UInt32(bytes, off + 8);
|
|
C3 = Pack.LE_To_UInt32(bytes, off + 12);
|
|
}
|
|
|
|
private void PackBlock(byte[] bytes, int off)
|
|
{
|
|
Pack.UInt32_To_LE(C0, bytes, off);
|
|
Pack.UInt32_To_LE(C1, bytes, off + 4);
|
|
Pack.UInt32_To_LE(C2, bytes, off + 8);
|
|
Pack.UInt32_To_LE(C3, bytes, off + 12);
|
|
}
|
|
|
|
private void EncryptBlock(uint[][] KW)
|
|
{
|
|
uint[] array = KW[0];
|
|
uint num = C0 ^ array[0];
|
|
uint num2 = C1 ^ array[1];
|
|
uint num3 = C2 ^ array[2];
|
|
uint num4 = C3 ^ array[3];
|
|
int num5 = 1;
|
|
uint num6;
|
|
uint num7;
|
|
uint num8;
|
|
while (num5 < ROUNDS - 1)
|
|
{
|
|
array = KW[num5++];
|
|
num6 = T0[num & 0xFF] ^ T1[(num2 >> 8) & 0xFF] ^ T2[(num3 >> 16) & 0xFF] ^ T3[num4 >> 24] ^ array[0];
|
|
num7 = T0[num2 & 0xFF] ^ T1[(num3 >> 8) & 0xFF] ^ T2[(num4 >> 16) & 0xFF] ^ T3[num >> 24] ^ array[1];
|
|
num8 = T0[num3 & 0xFF] ^ T1[(num4 >> 8) & 0xFF] ^ T2[(num >> 16) & 0xFF] ^ T3[num2 >> 24] ^ array[2];
|
|
num4 = T0[num4 & 0xFF] ^ T1[(num >> 8) & 0xFF] ^ T2[(num2 >> 16) & 0xFF] ^ T3[num3 >> 24] ^ array[3];
|
|
array = KW[num5++];
|
|
num = T0[num6 & 0xFF] ^ T1[(num7 >> 8) & 0xFF] ^ T2[(num8 >> 16) & 0xFF] ^ T3[num4 >> 24] ^ array[0];
|
|
num2 = T0[num7 & 0xFF] ^ T1[(num8 >> 8) & 0xFF] ^ T2[(num4 >> 16) & 0xFF] ^ T3[num6 >> 24] ^ array[1];
|
|
num3 = T0[num8 & 0xFF] ^ T1[(num4 >> 8) & 0xFF] ^ T2[(num6 >> 16) & 0xFF] ^ T3[num7 >> 24] ^ array[2];
|
|
num4 = T0[num4 & 0xFF] ^ T1[(num6 >> 8) & 0xFF] ^ T2[(num7 >> 16) & 0xFF] ^ T3[num8 >> 24] ^ array[3];
|
|
}
|
|
array = KW[num5++];
|
|
num6 = T0[num & 0xFF] ^ T1[(num2 >> 8) & 0xFF] ^ T2[(num3 >> 16) & 0xFF] ^ T3[num4 >> 24] ^ array[0];
|
|
num7 = T0[num2 & 0xFF] ^ T1[(num3 >> 8) & 0xFF] ^ T2[(num4 >> 16) & 0xFF] ^ T3[num >> 24] ^ array[1];
|
|
num8 = T0[num3 & 0xFF] ^ T1[(num4 >> 8) & 0xFF] ^ T2[(num >> 16) & 0xFF] ^ T3[num2 >> 24] ^ array[2];
|
|
num4 = T0[num4 & 0xFF] ^ T1[(num >> 8) & 0xFF] ^ T2[(num2 >> 16) & 0xFF] ^ T3[num3 >> 24] ^ array[3];
|
|
array = KW[num5];
|
|
C0 = (uint)(S[num6 & 0xFF] ^ (S[(num7 >> 8) & 0xFF] << 8) ^ (S[(num8 >> 16) & 0xFF] << 16) ^ (S[num4 >> 24] << 24)) ^ array[0];
|
|
C1 = (uint)(S[num7 & 0xFF] ^ (S[(num8 >> 8) & 0xFF] << 8) ^ (S[(num4 >> 16) & 0xFF] << 16) ^ (S[num6 >> 24] << 24)) ^ array[1];
|
|
C2 = (uint)(S[num8 & 0xFF] ^ (S[(num4 >> 8) & 0xFF] << 8) ^ (S[(num6 >> 16) & 0xFF] << 16) ^ (S[num7 >> 24] << 24)) ^ array[2];
|
|
C3 = (uint)(S[num4 & 0xFF] ^ (S[(num6 >> 8) & 0xFF] << 8) ^ (S[(num7 >> 16) & 0xFF] << 16) ^ (S[num8 >> 24] << 24)) ^ array[3];
|
|
}
|
|
|
|
private void DecryptBlock(uint[][] KW)
|
|
{
|
|
uint[] array = KW[ROUNDS];
|
|
uint num = C0 ^ array[0];
|
|
uint num2 = C1 ^ array[1];
|
|
uint num3 = C2 ^ array[2];
|
|
uint num4 = C3 ^ array[3];
|
|
int num5 = ROUNDS - 1;
|
|
uint num6;
|
|
uint num7;
|
|
uint num8;
|
|
while (num5 > 1)
|
|
{
|
|
array = KW[num5--];
|
|
num6 = Tinv0[num & 0xFF] ^ Tinv1[(num4 >> 8) & 0xFF] ^ Tinv2[(num3 >> 16) & 0xFF] ^ Tinv3[num2 >> 24] ^ array[0];
|
|
num7 = Tinv0[num2 & 0xFF] ^ Tinv1[(num >> 8) & 0xFF] ^ Tinv2[(num4 >> 16) & 0xFF] ^ Tinv3[num3 >> 24] ^ array[1];
|
|
num8 = Tinv0[num3 & 0xFF] ^ Tinv1[(num2 >> 8) & 0xFF] ^ Tinv2[(num >> 16) & 0xFF] ^ Tinv3[num4 >> 24] ^ array[2];
|
|
num4 = Tinv0[num4 & 0xFF] ^ Tinv1[(num3 >> 8) & 0xFF] ^ Tinv2[(num2 >> 16) & 0xFF] ^ Tinv3[num >> 24] ^ array[3];
|
|
array = KW[num5--];
|
|
num = Tinv0[num6 & 0xFF] ^ Tinv1[(num4 >> 8) & 0xFF] ^ Tinv2[(num8 >> 16) & 0xFF] ^ Tinv3[num7 >> 24] ^ array[0];
|
|
num2 = Tinv0[num7 & 0xFF] ^ Tinv1[(num6 >> 8) & 0xFF] ^ Tinv2[(num4 >> 16) & 0xFF] ^ Tinv3[num8 >> 24] ^ array[1];
|
|
num3 = Tinv0[num8 & 0xFF] ^ Tinv1[(num7 >> 8) & 0xFF] ^ Tinv2[(num6 >> 16) & 0xFF] ^ Tinv3[num4 >> 24] ^ array[2];
|
|
num4 = Tinv0[num4 & 0xFF] ^ Tinv1[(num8 >> 8) & 0xFF] ^ Tinv2[(num7 >> 16) & 0xFF] ^ Tinv3[num6 >> 24] ^ array[3];
|
|
}
|
|
array = KW[1];
|
|
num6 = Tinv0[num & 0xFF] ^ Tinv1[(num4 >> 8) & 0xFF] ^ Tinv2[(num3 >> 16) & 0xFF] ^ Tinv3[num2 >> 24] ^ array[0];
|
|
num7 = Tinv0[num2 & 0xFF] ^ Tinv1[(num >> 8) & 0xFF] ^ Tinv2[(num4 >> 16) & 0xFF] ^ Tinv3[num3 >> 24] ^ array[1];
|
|
num8 = Tinv0[num3 & 0xFF] ^ Tinv1[(num2 >> 8) & 0xFF] ^ Tinv2[(num >> 16) & 0xFF] ^ Tinv3[num4 >> 24] ^ array[2];
|
|
num4 = Tinv0[num4 & 0xFF] ^ Tinv1[(num3 >> 8) & 0xFF] ^ Tinv2[(num2 >> 16) & 0xFF] ^ Tinv3[num >> 24] ^ array[3];
|
|
array = KW[0];
|
|
C0 = (uint)(Si[num6 & 0xFF] ^ (Si[(num4 >> 8) & 0xFF] << 8) ^ (Si[(num8 >> 16) & 0xFF] << 16) ^ (Si[num7 >> 24] << 24)) ^ array[0];
|
|
C1 = (uint)(Si[num7 & 0xFF] ^ (Si[(num6 >> 8) & 0xFF] << 8) ^ (Si[(num4 >> 16) & 0xFF] << 16) ^ (Si[num8 >> 24] << 24)) ^ array[1];
|
|
C2 = (uint)(Si[num8 & 0xFF] ^ (Si[(num7 >> 8) & 0xFF] << 8) ^ (Si[(num6 >> 16) & 0xFF] << 16) ^ (Si[num4 >> 24] << 24)) ^ array[2];
|
|
C3 = (uint)(Si[num4 & 0xFF] ^ (Si[(num8 >> 8) & 0xFF] << 8) ^ (Si[(num7 >> 16) & 0xFF] << 16) ^ (Si[num6 >> 24] << 24)) ^ array[3];
|
|
}
|
|
}
|