pd.if.org Git - zpackage/blob - libtomcrypt/src/ciphers/cast5.c

   1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
   2  *
   3  * LibTomCrypt is a library that provides various cryptographic
   4  * algorithms in a highly modular and flexible manner.
   5  *
   6  * The library is free for all purposes without any express
   7  * guarantee it works.
   8  */
   9
  10  /**
  11    @file cast5.c
  12    Implementation of LTC_CAST5 (RFC 2144) by Tom St Denis
  13  */
  14 #include "tomcrypt.h"
  15
  16 #ifdef LTC_CAST5
  17
  18 const struct ltc_cipher_descriptor cast5_desc = {
  19    "cast5",
  20    15,
  21    5, 16, 8, 16,
  22    &cast5_setup,
  23    &cast5_ecb_encrypt,
  24    &cast5_ecb_decrypt,
  25    &cast5_test,
  26    &cast5_done,
  27    &cast5_keysize,
  28    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
  29 };
  30
  31 static const ulong32 S1[256] = {
  32 0x30fb40d4UL, 0x9fa0ff0bUL, 0x6beccd2fUL, 0x3f258c7aUL, 0x1e213f2fUL, 0x9c004dd3UL,
  33 0x6003e540UL, 0xcf9fc949UL, 0xbfd4af27UL, 0x88bbbdb5UL, 0xe2034090UL, 0x98d09675UL,
  34 0x6e63a0e0UL, 0x15c361d2UL, 0xc2e7661dUL, 0x22d4ff8eUL, 0x28683b6fUL, 0xc07fd059UL,
  35 0xff2379c8UL, 0x775f50e2UL, 0x43c340d3UL, 0xdf2f8656UL, 0x887ca41aUL, 0xa2d2bd2dUL,
  36 0xa1c9e0d6UL, 0x346c4819UL, 0x61b76d87UL, 0x22540f2fUL, 0x2abe32e1UL, 0xaa54166bUL,
  37 0x22568e3aUL, 0xa2d341d0UL, 0x66db40c8UL, 0xa784392fUL, 0x004dff2fUL, 0x2db9d2deUL,
  38 0x97943facUL, 0x4a97c1d8UL, 0x527644b7UL, 0xb5f437a7UL, 0xb82cbaefUL, 0xd751d159UL,
  39 0x6ff7f0edUL, 0x5a097a1fUL, 0x827b68d0UL, 0x90ecf52eUL, 0x22b0c054UL, 0xbc8e5935UL,
  40 0x4b6d2f7fUL, 0x50bb64a2UL, 0xd2664910UL, 0xbee5812dUL, 0xb7332290UL, 0xe93b159fUL,
  41 0xb48ee411UL, 0x4bff345dUL, 0xfd45c240UL, 0xad31973fUL, 0xc4f6d02eUL, 0x55fc8165UL,
  42 0xd5b1caadUL, 0xa1ac2daeUL, 0xa2d4b76dUL, 0xc19b0c50UL, 0x882240f2UL, 0x0c6e4f38UL,
  43 0xa4e4bfd7UL, 0x4f5ba272UL, 0x564c1d2fUL, 0xc59c5319UL, 0xb949e354UL, 0xb04669feUL,
  44 0xb1b6ab8aUL, 0xc71358ddUL, 0x6385c545UL, 0x110f935dUL, 0x57538ad5UL, 0x6a390493UL,
  45 0xe63d37e0UL, 0x2a54f6b3UL, 0x3a787d5fUL, 0x6276a0b5UL, 0x19a6fcdfUL, 0x7a42206aUL,
  46 0x29f9d4d5UL, 0xf61b1891UL, 0xbb72275eUL, 0xaa508167UL, 0x38901091UL, 0xc6b505ebUL,
  47 0x84c7cb8cUL, 0x2ad75a0fUL, 0x874a1427UL, 0xa2d1936bUL, 0x2ad286afUL, 0xaa56d291UL,
  48 0xd7894360UL, 0x425c750dUL, 0x93b39e26UL, 0x187184c9UL, 0x6c00b32dUL, 0x73e2bb14UL,
  49 0xa0bebc3cUL, 0x54623779UL, 0x64459eabUL, 0x3f328b82UL, 0x7718cf82UL, 0x59a2cea6UL,
  50 0x04ee002eUL, 0x89fe78e6UL, 0x3fab0950UL, 0x325ff6c2UL, 0x81383f05UL, 0x6963c5c8UL,
  51 0x76cb5ad6UL, 0xd49974c9UL, 0xca180dcfUL, 0x380782d5UL, 0xc7fa5cf6UL, 0x8ac31511UL,
  52 0x35e79e13UL, 0x47da91d0UL, 0xf40f9086UL, 0xa7e2419eUL, 0x31366241UL, 0x051ef495UL,
  53 0xaa573b04UL, 0x4a805d8dUL, 0x548300d0UL, 0x00322a3cUL, 0xbf64cddfUL, 0xba57a68eUL,
  54 0x75c6372bUL, 0x50afd341UL, 0xa7c13275UL, 0x915a0bf5UL, 0x6b54bfabUL, 0x2b0b1426UL,
  55 0xab4cc9d7UL, 0x449ccd82UL, 0xf7fbf265UL, 0xab85c5f3UL, 0x1b55db94UL, 0xaad4e324UL,
  56 0xcfa4bd3fUL, 0x2deaa3e2UL, 0x9e204d02UL, 0xc8bd25acUL, 0xeadf55b3UL, 0xd5bd9e98UL,
  57 0xe31231b2UL, 0x2ad5ad6cUL, 0x954329deUL, 0xadbe4528UL, 0xd8710f69UL, 0xaa51c90fUL,
  58 0xaa786bf6UL, 0x22513f1eUL, 0xaa51a79bUL, 0x2ad344ccUL, 0x7b5a41f0UL, 0xd37cfbadUL,
  59 0x1b069505UL, 0x41ece491UL, 0xb4c332e6UL, 0x032268d4UL, 0xc9600accUL, 0xce387e6dUL,
  60 0xbf6bb16cUL, 0x6a70fb78UL, 0x0d03d9c9UL, 0xd4df39deUL, 0xe01063daUL, 0x4736f464UL,
  61 0x5ad328d8UL, 0xb347cc96UL, 0x75bb0fc3UL, 0x98511bfbUL, 0x4ffbcc35UL, 0xb58bcf6aUL,
  62 0xe11f0abcUL, 0xbfc5fe4aUL, 0xa70aec10UL, 0xac39570aUL, 0x3f04442fUL, 0x6188b153UL,
  63 0xe0397a2eUL, 0x5727cb79UL, 0x9ceb418fUL, 0x1cacd68dUL, 0x2ad37c96UL, 0x0175cb9dUL,
  64 0xc69dff09UL, 0xc75b65f0UL, 0xd9db40d8UL, 0xec0e7779UL, 0x4744ead4UL, 0xb11c3274UL,
  65 0xdd24cb9eUL, 0x7e1c54bdUL, 0xf01144f9UL, 0xd2240eb1UL, 0x9675b3fdUL, 0xa3ac3755UL,
  66 0xd47c27afUL, 0x51c85f4dUL, 0x56907596UL, 0xa5bb15e6UL, 0x580304f0UL, 0xca042cf1UL,
  67 0x011a37eaUL, 0x8dbfaadbUL, 0x35ba3e4aUL, 0x3526ffa0UL, 0xc37b4d09UL, 0xbc306ed9UL,
  68 0x98a52666UL, 0x5648f725UL, 0xff5e569dUL, 0x0ced63d0UL, 0x7c63b2cfUL, 0x700b45e1UL,
  69 0xd5ea50f1UL, 0x85a92872UL, 0xaf1fbda7UL, 0xd4234870UL, 0xa7870bf3UL, 0x2d3b4d79UL,
  70 0x42e04198UL, 0x0cd0ede7UL, 0x26470db8UL, 0xf881814cUL, 0x474d6ad7UL, 0x7c0c5e5cUL,
  71 0xd1231959UL, 0x381b7298UL, 0xf5d2f4dbUL, 0xab838653UL, 0x6e2f1e23UL, 0x83719c9eUL,
  72 0xbd91e046UL, 0x9a56456eUL, 0xdc39200cUL, 0x20c8c571UL, 0x962bda1cUL, 0xe1e696ffUL,
  73 0xb141ab08UL, 0x7cca89b9UL, 0x1a69e783UL, 0x02cc4843UL, 0xa2f7c579UL, 0x429ef47dUL,
  74 0x427b169cUL, 0x5ac9f049UL, 0xdd8f0f00UL, 0x5c8165bfUL};
  75
  76 static const ulong32 S2[256] = {
  77 0x1f201094UL, 0xef0ba75bUL, 0x69e3cf7eUL, 0x393f4380UL, 0xfe61cf7aUL, 0xeec5207aUL,
  78 0x55889c94UL, 0x72fc0651UL, 0xada7ef79UL, 0x4e1d7235UL, 0xd55a63ceUL, 0xde0436baUL,
  79 0x99c430efUL, 0x5f0c0794UL, 0x18dcdb7dUL, 0xa1d6eff3UL, 0xa0b52f7bUL, 0x59e83605UL,
  80 0xee15b094UL, 0xe9ffd909UL, 0xdc440086UL, 0xef944459UL, 0xba83ccb3UL, 0xe0c3cdfbUL,
  81 0xd1da4181UL, 0x3b092ab1UL, 0xf997f1c1UL, 0xa5e6cf7bUL, 0x01420ddbUL, 0xe4e7ef5bUL,
  82 0x25a1ff41UL, 0xe180f806UL, 0x1fc41080UL, 0x179bee7aUL, 0xd37ac6a9UL, 0xfe5830a4UL,
  83 0x98de8b7fUL, 0x77e83f4eUL, 0x79929269UL, 0x24fa9f7bUL, 0xe113c85bUL, 0xacc40083UL,
  84 0xd7503525UL, 0xf7ea615fUL, 0x62143154UL, 0x0d554b63UL, 0x5d681121UL, 0xc866c359UL,
  85 0x3d63cf73UL, 0xcee234c0UL, 0xd4d87e87UL, 0x5c672b21UL, 0x071f6181UL, 0x39f7627fUL,
  86 0x361e3084UL, 0xe4eb573bUL, 0x602f64a4UL, 0xd63acd9cUL, 0x1bbc4635UL, 0x9e81032dUL,
  87 0x2701f50cUL, 0x99847ab4UL, 0xa0e3df79UL, 0xba6cf38cUL, 0x10843094UL, 0x2537a95eUL,
  88 0xf46f6ffeUL, 0xa1ff3b1fUL, 0x208cfb6aUL, 0x8f458c74UL, 0xd9e0a227UL, 0x4ec73a34UL,
  89 0xfc884f69UL, 0x3e4de8dfUL, 0xef0e0088UL, 0x3559648dUL, 0x8a45388cUL, 0x1d804366UL,
  90 0x721d9bfdUL, 0xa58684bbUL, 0xe8256333UL, 0x844e8212UL, 0x128d8098UL, 0xfed33fb4UL,
  91 0xce280ae1UL, 0x27e19ba5UL, 0xd5a6c252UL, 0xe49754bdUL, 0xc5d655ddUL, 0xeb667064UL,
  92 0x77840b4dUL, 0xa1b6a801UL, 0x84db26a9UL, 0xe0b56714UL, 0x21f043b7UL, 0xe5d05860UL,
  93 0x54f03084UL, 0x066ff472UL, 0xa31aa153UL, 0xdadc4755UL, 0xb5625dbfUL, 0x68561be6UL,
  94 0x83ca6b94UL, 0x2d6ed23bUL, 0xeccf01dbUL, 0xa6d3d0baUL, 0xb6803d5cUL, 0xaf77a709UL,
  95 0x33b4a34cUL, 0x397bc8d6UL, 0x5ee22b95UL, 0x5f0e5304UL, 0x81ed6f61UL, 0x20e74364UL,
  96 0xb45e1378UL, 0xde18639bUL, 0x881ca122UL, 0xb96726d1UL, 0x8049a7e8UL, 0x22b7da7bUL,
  97 0x5e552d25UL, 0x5272d237UL, 0x79d2951cUL, 0xc60d894cUL, 0x488cb402UL, 0x1ba4fe5bUL,
  98 0xa4b09f6bUL, 0x1ca815cfUL, 0xa20c3005UL, 0x8871df63UL, 0xb9de2fcbUL, 0x0cc6c9e9UL,
  99 0x0beeff53UL, 0xe3214517UL, 0xb4542835UL, 0x9f63293cUL, 0xee41e729UL, 0x6e1d2d7cUL,
 100 0x50045286UL, 0x1e6685f3UL, 0xf33401c6UL, 0x30a22c95UL, 0x31a70850UL, 0x60930f13UL,
 101 0x73f98417UL, 0xa1269859UL, 0xec645c44UL, 0x52c877a9UL, 0xcdff33a6UL, 0xa02b1741UL,
 102 0x7cbad9a2UL, 0x2180036fUL, 0x50d99c08UL, 0xcb3f4861UL, 0xc26bd765UL, 0x64a3f6abUL,
 103 0x80342676UL, 0x25a75e7bUL, 0xe4e6d1fcUL, 0x20c710e6UL, 0xcdf0b680UL, 0x17844d3bUL,
 104 0x31eef84dUL, 0x7e0824e4UL, 0x2ccb49ebUL, 0x846a3baeUL, 0x8ff77888UL, 0xee5d60f6UL,
 105 0x7af75673UL, 0x2fdd5cdbUL, 0xa11631c1UL, 0x30f66f43UL, 0xb3faec54UL, 0x157fd7faUL,
 106 0xef8579ccUL, 0xd152de58UL, 0xdb2ffd5eUL, 0x8f32ce19UL, 0x306af97aUL, 0x02f03ef8UL,
 107 0x99319ad5UL, 0xc242fa0fUL, 0xa7e3ebb0UL, 0xc68e4906UL, 0xb8da230cUL, 0x80823028UL,
 108 0xdcdef3c8UL, 0xd35fb171UL, 0x088a1bc8UL, 0xbec0c560UL, 0x61a3c9e8UL, 0xbca8f54dUL,
 109 0xc72feffaUL, 0x22822e99UL, 0x82c570b4UL, 0xd8d94e89UL, 0x8b1c34bcUL, 0x301e16e6UL,
 110 0x273be979UL, 0xb0ffeaa6UL, 0x61d9b8c6UL, 0x00b24869UL, 0xb7ffce3fUL, 0x08dc283bUL,
 111 0x43daf65aUL, 0xf7e19798UL, 0x7619b72fUL, 0x8f1c9ba4UL, 0xdc8637a0UL, 0x16a7d3b1UL,
 112 0x9fc393b7UL, 0xa7136eebUL, 0xc6bcc63eUL, 0x1a513742UL, 0xef6828bcUL, 0x520365d6UL,
 113 0x2d6a77abUL, 0x3527ed4bUL, 0x821fd216UL, 0x095c6e2eUL, 0xdb92f2fbUL, 0x5eea29cbUL,
 114 0x145892f5UL, 0x91584f7fUL, 0x5483697bUL, 0x2667a8ccUL, 0x85196048UL, 0x8c4baceaUL,
 115 0x833860d4UL, 0x0d23e0f9UL, 0x6c387e8aUL, 0x0ae6d249UL, 0xb284600cUL, 0xd835731dUL,
 116 0xdcb1c647UL, 0xac4c56eaUL, 0x3ebd81b3UL, 0x230eabb0UL, 0x6438bc87UL, 0xf0b5b1faUL,
 117 0x8f5ea2b3UL, 0xfc184642UL, 0x0a036b7aUL, 0x4fb089bdUL, 0x649da589UL, 0xa345415eUL,
 118 0x5c038323UL, 0x3e5d3bb9UL, 0x43d79572UL, 0x7e6dd07cUL, 0x06dfdf1eUL, 0x6c6cc4efUL,
 119 0x7160a539UL, 0x73bfbe70UL, 0x83877605UL, 0x4523ecf1UL};
 120
 121 static const ulong32 S3[256] = {
 122 0x8defc240UL, 0x25fa5d9fUL, 0xeb903dbfUL, 0xe810c907UL, 0x47607fffUL, 0x369fe44bUL,
 123 0x8c1fc644UL, 0xaececa90UL, 0xbeb1f9bfUL, 0xeefbcaeaUL, 0xe8cf1950UL, 0x51df07aeUL,
 124 0x920e8806UL, 0xf0ad0548UL, 0xe13c8d83UL, 0x927010d5UL, 0x11107d9fUL, 0x07647db9UL,
 125 0xb2e3e4d4UL, 0x3d4f285eUL, 0xb9afa820UL, 0xfade82e0UL, 0xa067268bUL, 0x8272792eUL,
 126 0x553fb2c0UL, 0x489ae22bUL, 0xd4ef9794UL, 0x125e3fbcUL, 0x21fffceeUL, 0x825b1bfdUL,
 127 0x9255c5edUL, 0x1257a240UL, 0x4e1a8302UL, 0xbae07fffUL, 0x528246e7UL, 0x8e57140eUL,
 128 0x3373f7bfUL, 0x8c9f8188UL, 0xa6fc4ee8UL, 0xc982b5a5UL, 0xa8c01db7UL, 0x579fc264UL,
 129 0x67094f31UL, 0xf2bd3f5fUL, 0x40fff7c1UL, 0x1fb78dfcUL, 0x8e6bd2c1UL, 0x437be59bUL,
 130 0x99b03dbfUL, 0xb5dbc64bUL, 0x638dc0e6UL, 0x55819d99UL, 0xa197c81cUL, 0x4a012d6eUL,
 131 0xc5884a28UL, 0xccc36f71UL, 0xb843c213UL, 0x6c0743f1UL, 0x8309893cUL, 0x0feddd5fUL,
 132 0x2f7fe850UL, 0xd7c07f7eUL, 0x02507fbfUL, 0x5afb9a04UL, 0xa747d2d0UL, 0x1651192eUL,
 133 0xaf70bf3eUL, 0x58c31380UL, 0x5f98302eUL, 0x727cc3c4UL, 0x0a0fb402UL, 0x0f7fef82UL,
 134 0x8c96fdadUL, 0x5d2c2aaeUL, 0x8ee99a49UL, 0x50da88b8UL, 0x8427f4a0UL, 0x1eac5790UL,
 135 0x796fb449UL, 0x8252dc15UL, 0xefbd7d9bUL, 0xa672597dUL, 0xada840d8UL, 0x45f54504UL,
 136 0xfa5d7403UL, 0xe83ec305UL, 0x4f91751aUL, 0x925669c2UL, 0x23efe941UL, 0xa903f12eUL,
 137 0x60270df2UL, 0x0276e4b6UL, 0x94fd6574UL, 0x927985b2UL, 0x8276dbcbUL, 0x02778176UL,
 138 0xf8af918dUL, 0x4e48f79eUL, 0x8f616ddfUL, 0xe29d840eUL, 0x842f7d83UL, 0x340ce5c8UL,
 139 0x96bbb682UL, 0x93b4b148UL, 0xef303cabUL, 0x984faf28UL, 0x779faf9bUL, 0x92dc560dUL,
 140 0x224d1e20UL, 0x8437aa88UL, 0x7d29dc96UL, 0x2756d3dcUL, 0x8b907ceeUL, 0xb51fd240UL,
 141 0xe7c07ce3UL, 0xe566b4a1UL, 0xc3e9615eUL, 0x3cf8209dUL, 0x6094d1e3UL, 0xcd9ca341UL,
 142 0x5c76460eUL, 0x00ea983bUL, 0xd4d67881UL, 0xfd47572cUL, 0xf76cedd9UL, 0xbda8229cUL,
 143 0x127dadaaUL, 0x438a074eUL, 0x1f97c090UL, 0x081bdb8aUL, 0x93a07ebeUL, 0xb938ca15UL,
 144 0x97b03cffUL, 0x3dc2c0f8UL, 0x8d1ab2ecUL, 0x64380e51UL, 0x68cc7bfbUL, 0xd90f2788UL,
 145 0x12490181UL, 0x5de5ffd4UL, 0xdd7ef86aUL, 0x76a2e214UL, 0xb9a40368UL, 0x925d958fUL,
 146 0x4b39fffaUL, 0xba39aee9UL, 0xa4ffd30bUL, 0xfaf7933bUL, 0x6d498623UL, 0x193cbcfaUL,
 147 0x27627545UL, 0x825cf47aUL, 0x61bd8ba0UL, 0xd11e42d1UL, 0xcead04f4UL, 0x127ea392UL,
 148 0x10428db7UL, 0x8272a972UL, 0x9270c4a8UL, 0x127de50bUL, 0x285ba1c8UL, 0x3c62f44fUL,
 149 0x35c0eaa5UL, 0xe805d231UL, 0x428929fbUL, 0xb4fcdf82UL, 0x4fb66a53UL, 0x0e7dc15bUL,
 150 0x1f081fabUL, 0x108618aeUL, 0xfcfd086dUL, 0xf9ff2889UL, 0x694bcc11UL, 0x236a5caeUL,
 151 0x12deca4dUL, 0x2c3f8cc5UL, 0xd2d02dfeUL, 0xf8ef5896UL, 0xe4cf52daUL, 0x95155b67UL,
 152 0x494a488cUL, 0xb9b6a80cUL, 0x5c8f82bcUL, 0x89d36b45UL, 0x3a609437UL, 0xec00c9a9UL,
 153 0x44715253UL, 0x0a874b49UL, 0xd773bc40UL, 0x7c34671cUL, 0x02717ef6UL, 0x4feb5536UL,
 154 0xa2d02fffUL, 0xd2bf60c4UL, 0xd43f03c0UL, 0x50b4ef6dUL, 0x07478cd1UL, 0x006e1888UL,
 155 0xa2e53f55UL, 0xb9e6d4bcUL, 0xa2048016UL, 0x97573833UL, 0xd7207d67UL, 0xde0f8f3dUL,
 156 0x72f87b33UL, 0xabcc4f33UL, 0x7688c55dUL, 0x7b00a6b0UL, 0x947b0001UL, 0x570075d2UL,
 157 0xf9bb88f8UL, 0x8942019eUL, 0x4264a5ffUL, 0x856302e0UL, 0x72dbd92bUL, 0xee971b69UL,
 158 0x6ea22fdeUL, 0x5f08ae2bUL, 0xaf7a616dUL, 0xe5c98767UL, 0xcf1febd2UL, 0x61efc8c2UL,
 159 0xf1ac2571UL, 0xcc8239c2UL, 0x67214cb8UL, 0xb1e583d1UL, 0xb7dc3e62UL, 0x7f10bdceUL,
 160 0xf90a5c38UL, 0x0ff0443dUL, 0x606e6dc6UL, 0x60543a49UL, 0x5727c148UL, 0x2be98a1dUL,
 161 0x8ab41738UL, 0x20e1be24UL, 0xaf96da0fUL, 0x68458425UL, 0x99833be5UL, 0x600d457dUL,
 162 0x282f9350UL, 0x8334b362UL, 0xd91d1120UL, 0x2b6d8da0UL, 0x642b1e31UL, 0x9c305a00UL,
 163 0x52bce688UL, 0x1b03588aUL, 0xf7baefd5UL, 0x4142ed9cUL, 0xa4315c11UL, 0x83323ec5UL,
 164 0xdfef4636UL, 0xa133c501UL, 0xe9d3531cUL, 0xee353783UL};
 165
 166 static const ulong32 S4[256] = {
 167 0x9db30420UL, 0x1fb6e9deUL, 0xa7be7befUL, 0xd273a298UL, 0x4a4f7bdbUL, 0x64ad8c57UL,
 168 0x85510443UL, 0xfa020ed1UL, 0x7e287affUL, 0xe60fb663UL, 0x095f35a1UL, 0x79ebf120UL,
 169 0xfd059d43UL, 0x6497b7b1UL, 0xf3641f63UL, 0x241e4adfUL, 0x28147f5fUL, 0x4fa2b8cdUL,
 170 0xc9430040UL, 0x0cc32220UL, 0xfdd30b30UL, 0xc0a5374fUL, 0x1d2d00d9UL, 0x24147b15UL,
 171 0xee4d111aUL, 0x0fca5167UL, 0x71ff904cUL, 0x2d195ffeUL, 0x1a05645fUL, 0x0c13fefeUL,
 172 0x081b08caUL, 0x05170121UL, 0x80530100UL, 0xe83e5efeUL, 0xac9af4f8UL, 0x7fe72701UL,
 173 0xd2b8ee5fUL, 0x06df4261UL, 0xbb9e9b8aUL, 0x7293ea25UL, 0xce84ffdfUL, 0xf5718801UL,
 174 0x3dd64b04UL, 0xa26f263bUL, 0x7ed48400UL, 0x547eebe6UL, 0x446d4ca0UL, 0x6cf3d6f5UL,
 175 0x2649abdfUL, 0xaea0c7f5UL, 0x36338cc1UL, 0x503f7e93UL, 0xd3772061UL, 0x11b638e1UL,
 176 0x72500e03UL, 0xf80eb2bbUL, 0xabe0502eUL, 0xec8d77deUL, 0x57971e81UL, 0xe14f6746UL,
 177 0xc9335400UL, 0x6920318fUL, 0x081dbb99UL, 0xffc304a5UL, 0x4d351805UL, 0x7f3d5ce3UL,
 178 0xa6c866c6UL, 0x5d5bcca9UL, 0xdaec6feaUL, 0x9f926f91UL, 0x9f46222fUL, 0x3991467dUL,
 179 0xa5bf6d8eUL, 0x1143c44fUL, 0x43958302UL, 0xd0214eebUL, 0x022083b8UL, 0x3fb6180cUL,
 180 0x18f8931eUL, 0x281658e6UL, 0x26486e3eUL, 0x8bd78a70UL, 0x7477e4c1UL, 0xb506e07cUL,
 181 0xf32d0a25UL, 0x79098b02UL, 0xe4eabb81UL, 0x28123b23UL, 0x69dead38UL, 0x1574ca16UL,
 182 0xdf871b62UL, 0x211c40b7UL, 0xa51a9ef9UL, 0x0014377bUL, 0x041e8ac8UL, 0x09114003UL,
 183 0xbd59e4d2UL, 0xe3d156d5UL, 0x4fe876d5UL, 0x2f91a340UL, 0x557be8deUL, 0x00eae4a7UL,
 184 0x0ce5c2ecUL, 0x4db4bba6UL, 0xe756bdffUL, 0xdd3369acUL, 0xec17b035UL, 0x06572327UL,
 185 0x99afc8b0UL, 0x56c8c391UL, 0x6b65811cUL, 0x5e146119UL, 0x6e85cb75UL, 0xbe07c002UL,
 186 0xc2325577UL, 0x893ff4ecUL, 0x5bbfc92dUL, 0xd0ec3b25UL, 0xb7801ab7UL, 0x8d6d3b24UL,
 187 0x20c763efUL, 0xc366a5fcUL, 0x9c382880UL, 0x0ace3205UL, 0xaac9548aUL, 0xeca1d7c7UL,
 188 0x041afa32UL, 0x1d16625aUL, 0x6701902cUL, 0x9b757a54UL, 0x31d477f7UL, 0x9126b031UL,
 189 0x36cc6fdbUL, 0xc70b8b46UL, 0xd9e66a48UL, 0x56e55a79UL, 0x026a4cebUL, 0x52437effUL,
 190 0x2f8f76b4UL, 0x0df980a5UL, 0x8674cde3UL, 0xedda04ebUL, 0x17a9be04UL, 0x2c18f4dfUL,
 191 0xb7747f9dUL, 0xab2af7b4UL, 0xefc34d20UL, 0x2e096b7cUL, 0x1741a254UL, 0xe5b6a035UL,
 192 0x213d42f6UL, 0x2c1c7c26UL, 0x61c2f50fUL, 0x6552daf9UL, 0xd2c231f8UL, 0x25130f69UL,
 193 0xd8167fa2UL, 0x0418f2c8UL, 0x001a96a6UL, 0x0d1526abUL, 0x63315c21UL, 0x5e0a72ecUL,
 194 0x49bafefdUL, 0x187908d9UL, 0x8d0dbd86UL, 0x311170a7UL, 0x3e9b640cUL, 0xcc3e10d7UL,
 195 0xd5cad3b6UL, 0x0caec388UL, 0xf73001e1UL, 0x6c728affUL, 0x71eae2a1UL, 0x1f9af36eUL,
 196 0xcfcbd12fUL, 0xc1de8417UL, 0xac07be6bUL, 0xcb44a1d8UL, 0x8b9b0f56UL, 0x013988c3UL,
 197 0xb1c52fcaUL, 0xb4be31cdUL, 0xd8782806UL, 0x12a3a4e2UL, 0x6f7de532UL, 0x58fd7eb6UL,
 198 0xd01ee900UL, 0x24adffc2UL, 0xf4990fc5UL, 0x9711aac5UL, 0x001d7b95UL, 0x82e5e7d2UL,
 199 0x109873f6UL, 0x00613096UL, 0xc32d9521UL, 0xada121ffUL, 0x29908415UL, 0x7fbb977fUL,
 200 0xaf9eb3dbUL, 0x29c9ed2aUL, 0x5ce2a465UL, 0xa730f32cUL, 0xd0aa3fe8UL, 0x8a5cc091UL,
 201 0xd49e2ce7UL, 0x0ce454a9UL, 0xd60acd86UL, 0x015f1919UL, 0x77079103UL, 0xdea03af6UL,
 202 0x78a8565eUL, 0xdee356dfUL, 0x21f05cbeUL, 0x8b75e387UL, 0xb3c50651UL, 0xb8a5c3efUL,
 203 0xd8eeb6d2UL, 0xe523be77UL, 0xc2154529UL, 0x2f69efdfUL, 0xafe67afbUL, 0xf470c4b2UL,
 204 0xf3e0eb5bUL, 0xd6cc9876UL, 0x39e4460cUL, 0x1fda8538UL, 0x1987832fUL, 0xca007367UL,
 205 0xa99144f8UL, 0x296b299eUL, 0x492fc295UL, 0x9266beabUL, 0xb5676e69UL, 0x9bd3dddaUL,
 206 0xdf7e052fUL, 0xdb25701cUL, 0x1b5e51eeUL, 0xf65324e6UL, 0x6afce36cUL, 0x0316cc04UL,
 207 0x8644213eUL, 0xb7dc59d0UL, 0x7965291fUL, 0xccd6fd43UL, 0x41823979UL, 0x932bcdf6UL,
 208 0xb657c34dUL, 0x4edfd282UL, 0x7ae5290cUL, 0x3cb9536bUL, 0x851e20feUL, 0x9833557eUL,
 209 0x13ecf0b0UL, 0xd3ffb372UL, 0x3f85c5c1UL, 0x0aef7ed2UL};
 210
 211 static const ulong32 S5[256] = {
 212 0x7ec90c04UL, 0x2c6e74b9UL, 0x9b0e66dfUL, 0xa6337911UL, 0xb86a7fffUL, 0x1dd358f5UL,
 213 0x44dd9d44UL, 0x1731167fUL, 0x08fbf1faUL, 0xe7f511ccUL, 0xd2051b00UL, 0x735aba00UL,
 214 0x2ab722d8UL, 0x386381cbUL, 0xacf6243aUL, 0x69befd7aUL, 0xe6a2e77fUL, 0xf0c720cdUL,
 215 0xc4494816UL, 0xccf5c180UL, 0x38851640UL, 0x15b0a848UL, 0xe68b18cbUL, 0x4caadeffUL,
 216 0x5f480a01UL, 0x0412b2aaUL, 0x259814fcUL, 0x41d0efe2UL, 0x4e40b48dUL, 0x248eb6fbUL,
 217 0x8dba1cfeUL, 0x41a99b02UL, 0x1a550a04UL, 0xba8f65cbUL, 0x7251f4e7UL, 0x95a51725UL,
 218 0xc106ecd7UL, 0x97a5980aUL, 0xc539b9aaUL, 0x4d79fe6aUL, 0xf2f3f763UL, 0x68af8040UL,
 219 0xed0c9e56UL, 0x11b4958bUL, 0xe1eb5a88UL, 0x8709e6b0UL, 0xd7e07156UL, 0x4e29fea7UL,
 220 0x6366e52dUL, 0x02d1c000UL, 0xc4ac8e05UL, 0x9377f571UL, 0x0c05372aUL, 0x578535f2UL,
 221 0x2261be02UL, 0xd642a0c9UL, 0xdf13a280UL, 0x74b55bd2UL, 0x682199c0UL, 0xd421e5ecUL,
 222 0x53fb3ce8UL, 0xc8adedb3UL, 0x28a87fc9UL, 0x3d959981UL, 0x5c1ff900UL, 0xfe38d399UL,
 223 0x0c4eff0bUL, 0x062407eaUL, 0xaa2f4fb1UL, 0x4fb96976UL, 0x90c79505UL, 0xb0a8a774UL,
 224 0xef55a1ffUL, 0xe59ca2c2UL, 0xa6b62d27UL, 0xe66a4263UL, 0xdf65001fUL, 0x0ec50966UL,
 225 0xdfdd55bcUL, 0x29de0655UL, 0x911e739aUL, 0x17af8975UL, 0x32c7911cUL, 0x89f89468UL,
 226 0x0d01e980UL, 0x524755f4UL, 0x03b63cc9UL, 0x0cc844b2UL, 0xbcf3f0aaUL, 0x87ac36e9UL,
 227 0xe53a7426UL, 0x01b3d82bUL, 0x1a9e7449UL, 0x64ee2d7eUL, 0xcddbb1daUL, 0x01c94910UL,
 228 0xb868bf80UL, 0x0d26f3fdUL, 0x9342ede7UL, 0x04a5c284UL, 0x636737b6UL, 0x50f5b616UL,
 229 0xf24766e3UL, 0x8eca36c1UL, 0x136e05dbUL, 0xfef18391UL, 0xfb887a37UL, 0xd6e7f7d4UL,
 230 0xc7fb7dc9UL, 0x3063fcdfUL, 0xb6f589deUL, 0xec2941daUL, 0x26e46695UL, 0xb7566419UL,
 231 0xf654efc5UL, 0xd08d58b7UL, 0x48925401UL, 0xc1bacb7fUL, 0xe5ff550fUL, 0xb6083049UL,
 232 0x5bb5d0e8UL, 0x87d72e5aUL, 0xab6a6ee1UL, 0x223a66ceUL, 0xc62bf3cdUL, 0x9e0885f9UL,
 233 0x68cb3e47UL, 0x086c010fUL, 0xa21de820UL, 0xd18b69deUL, 0xf3f65777UL, 0xfa02c3f6UL,
 234 0x407edac3UL, 0xcbb3d550UL, 0x1793084dUL, 0xb0d70ebaUL, 0x0ab378d5UL, 0xd951fb0cUL,
 235 0xded7da56UL, 0x4124bbe4UL, 0x94ca0b56UL, 0x0f5755d1UL, 0xe0e1e56eUL, 0x6184b5beUL,
 236 0x580a249fUL, 0x94f74bc0UL, 0xe327888eUL, 0x9f7b5561UL, 0xc3dc0280UL, 0x05687715UL,
 237 0x646c6bd7UL, 0x44904db3UL, 0x66b4f0a3UL, 0xc0f1648aUL, 0x697ed5afUL, 0x49e92ff6UL,
 238 0x309e374fUL, 0x2cb6356aUL, 0x85808573UL, 0x4991f840UL, 0x76f0ae02UL, 0x083be84dUL,
 239 0x28421c9aUL, 0x44489406UL, 0x736e4cb8UL, 0xc1092910UL, 0x8bc95fc6UL, 0x7d869cf4UL,
 240 0x134f616fUL, 0x2e77118dUL, 0xb31b2be1UL, 0xaa90b472UL, 0x3ca5d717UL, 0x7d161bbaUL,
 241 0x9cad9010UL, 0xaf462ba2UL, 0x9fe459d2UL, 0x45d34559UL, 0xd9f2da13UL, 0xdbc65487UL,
 242 0xf3e4f94eUL, 0x176d486fUL, 0x097c13eaUL, 0x631da5c7UL, 0x445f7382UL, 0x175683f4UL,
 243 0xcdc66a97UL, 0x70be0288UL, 0xb3cdcf72UL, 0x6e5dd2f3UL, 0x20936079UL, 0x459b80a5UL,
 244 0xbe60e2dbUL, 0xa9c23101UL, 0xeba5315cUL, 0x224e42f2UL, 0x1c5c1572UL, 0xf6721b2cUL,
 245 0x1ad2fff3UL, 0x8c25404eUL, 0x324ed72fUL, 0x4067b7fdUL, 0x0523138eUL, 0x5ca3bc78UL,
 246 0xdc0fd66eUL, 0x75922283UL, 0x784d6b17UL, 0x58ebb16eUL, 0x44094f85UL, 0x3f481d87UL,
 247 0xfcfeae7bUL, 0x77b5ff76UL, 0x8c2302bfUL, 0xaaf47556UL, 0x5f46b02aUL, 0x2b092801UL,
 248 0x3d38f5f7UL, 0x0ca81f36UL, 0x52af4a8aUL, 0x66d5e7c0UL, 0xdf3b0874UL, 0x95055110UL,
 249 0x1b5ad7a8UL, 0xf61ed5adUL, 0x6cf6e479UL, 0x20758184UL, 0xd0cefa65UL, 0x88f7be58UL,
 250 0x4a046826UL, 0x0ff6f8f3UL, 0xa09c7f70UL, 0x5346aba0UL, 0x5ce96c28UL, 0xe176eda3UL,
 251 0x6bac307fUL, 0x376829d2UL, 0x85360fa9UL, 0x17e3fe2aUL, 0x24b79767UL, 0xf5a96b20UL,
 252 0xd6cd2595UL, 0x68ff1ebfUL, 0x7555442cUL, 0xf19f06beUL, 0xf9e0659aUL, 0xeeb9491dUL,
 253 0x34010718UL, 0xbb30cab8UL, 0xe822fe15UL, 0x88570983UL, 0x750e6249UL, 0xda627e55UL,
 254 0x5e76ffa8UL, 0xb1534546UL, 0x6d47de08UL, 0xefe9e7d4UL};
 255
 256 static const ulong32 S6[256] = {
 257 0xf6fa8f9dUL, 0x2cac6ce1UL, 0x4ca34867UL, 0xe2337f7cUL, 0x95db08e7UL, 0x016843b4UL,
 258 0xeced5cbcUL, 0x325553acUL, 0xbf9f0960UL, 0xdfa1e2edUL, 0x83f0579dUL, 0x63ed86b9UL,
 259 0x1ab6a6b8UL, 0xde5ebe39UL, 0xf38ff732UL, 0x8989b138UL, 0x33f14961UL, 0xc01937bdUL,
 260 0xf506c6daUL, 0xe4625e7eUL, 0xa308ea99UL, 0x4e23e33cUL, 0x79cbd7ccUL, 0x48a14367UL,
 261 0xa3149619UL, 0xfec94bd5UL, 0xa114174aUL, 0xeaa01866UL, 0xa084db2dUL, 0x09a8486fUL,
 262 0xa888614aUL, 0x2900af98UL, 0x01665991UL, 0xe1992863UL, 0xc8f30c60UL, 0x2e78ef3cUL,
 263 0xd0d51932UL, 0xcf0fec14UL, 0xf7ca07d2UL, 0xd0a82072UL, 0xfd41197eUL, 0x9305a6b0UL,
 264 0xe86be3daUL, 0x74bed3cdUL, 0x372da53cUL, 0x4c7f4448UL, 0xdab5d440UL, 0x6dba0ec3UL,
 265 0x083919a7UL, 0x9fbaeed9UL, 0x49dbcfb0UL, 0x4e670c53UL, 0x5c3d9c01UL, 0x64bdb941UL,
 266 0x2c0e636aUL, 0xba7dd9cdUL, 0xea6f7388UL, 0xe70bc762UL, 0x35f29adbUL, 0x5c4cdd8dUL,
 267 0xf0d48d8cUL, 0xb88153e2UL, 0x08a19866UL, 0x1ae2eac8UL, 0x284caf89UL, 0xaa928223UL,
 268 0x9334be53UL, 0x3b3a21bfUL, 0x16434be3UL, 0x9aea3906UL, 0xefe8c36eUL, 0xf890cdd9UL,
 269 0x80226daeUL, 0xc340a4a3UL, 0xdf7e9c09UL, 0xa694a807UL, 0x5b7c5eccUL, 0x221db3a6UL,
 270 0x9a69a02fUL, 0x68818a54UL, 0xceb2296fUL, 0x53c0843aUL, 0xfe893655UL, 0x25bfe68aUL,
 271 0xb4628abcUL, 0xcf222ebfUL, 0x25ac6f48UL, 0xa9a99387UL, 0x53bddb65UL, 0xe76ffbe7UL,
 272 0xe967fd78UL, 0x0ba93563UL, 0x8e342bc1UL, 0xe8a11be9UL, 0x4980740dUL, 0xc8087dfcUL,
 273 0x8de4bf99UL, 0xa11101a0UL, 0x7fd37975UL, 0xda5a26c0UL, 0xe81f994fUL, 0x9528cd89UL,
 274 0xfd339fedUL, 0xb87834bfUL, 0x5f04456dUL, 0x22258698UL, 0xc9c4c83bUL, 0x2dc156beUL,
 275 0x4f628daaUL, 0x57f55ec5UL, 0xe2220abeUL, 0xd2916ebfUL, 0x4ec75b95UL, 0x24f2c3c0UL,
 276 0x42d15d99UL, 0xcd0d7fa0UL, 0x7b6e27ffUL, 0xa8dc8af0UL, 0x7345c106UL, 0xf41e232fUL,
 277 0x35162386UL, 0xe6ea8926UL, 0x3333b094UL, 0x157ec6f2UL, 0x372b74afUL, 0x692573e4UL,
 278 0xe9a9d848UL, 0xf3160289UL, 0x3a62ef1dUL, 0xa787e238UL, 0xf3a5f676UL, 0x74364853UL,
 279 0x20951063UL, 0x4576698dUL, 0xb6fad407UL, 0x592af950UL, 0x36f73523UL, 0x4cfb6e87UL,
 280 0x7da4cec0UL, 0x6c152daaUL, 0xcb0396a8UL, 0xc50dfe5dUL, 0xfcd707abUL, 0x0921c42fUL,
 281 0x89dff0bbUL, 0x5fe2be78UL, 0x448f4f33UL, 0x754613c9UL, 0x2b05d08dUL, 0x48b9d585UL,
 282 0xdc049441UL, 0xc8098f9bUL, 0x7dede786UL, 0xc39a3373UL, 0x42410005UL, 0x6a091751UL,
 283 0x0ef3c8a6UL, 0x890072d6UL, 0x28207682UL, 0xa9a9f7beUL, 0xbf32679dUL, 0xd45b5b75UL,
 284 0xb353fd00UL, 0xcbb0e358UL, 0x830f220aUL, 0x1f8fb214UL, 0xd372cf08UL, 0xcc3c4a13UL,
 285 0x8cf63166UL, 0x061c87beUL, 0x88c98f88UL, 0x6062e397UL, 0x47cf8e7aUL, 0xb6c85283UL,
 286 0x3cc2acfbUL, 0x3fc06976UL, 0x4e8f0252UL, 0x64d8314dUL, 0xda3870e3UL, 0x1e665459UL,
 287 0xc10908f0UL, 0x513021a5UL, 0x6c5b68b7UL, 0x822f8aa0UL, 0x3007cd3eUL, 0x74719eefUL,
 288 0xdc872681UL, 0x073340d4UL, 0x7e432fd9UL, 0x0c5ec241UL, 0x8809286cUL, 0xf592d891UL,
 289 0x08a930f6UL, 0x957ef305UL, 0xb7fbffbdUL, 0xc266e96fUL, 0x6fe4ac98UL, 0xb173ecc0UL,
 290 0xbc60b42aUL, 0x953498daUL, 0xfba1ae12UL, 0x2d4bd736UL, 0x0f25faabUL, 0xa4f3fcebUL,
 291 0xe2969123UL, 0x257f0c3dUL, 0x9348af49UL, 0x361400bcUL, 0xe8816f4aUL, 0x3814f200UL,
 292 0xa3f94043UL, 0x9c7a54c2UL, 0xbc704f57UL, 0xda41e7f9UL, 0xc25ad33aUL, 0x54f4a084UL,
 293 0xb17f5505UL, 0x59357cbeUL, 0xedbd15c8UL, 0x7f97c5abUL, 0xba5ac7b5UL, 0xb6f6deafUL,
 294 0x3a479c3aUL, 0x5302da25UL, 0x653d7e6aUL, 0x54268d49UL, 0x51a477eaUL, 0x5017d55bUL,
 295 0xd7d25d88UL, 0x44136c76UL, 0x0404a8c8UL, 0xb8e5a121UL, 0xb81a928aUL, 0x60ed5869UL,
 296 0x97c55b96UL, 0xeaec991bUL, 0x29935913UL, 0x01fdb7f1UL, 0x088e8dfaUL, 0x9ab6f6f5UL,
 297 0x3b4cbf9fUL, 0x4a5de3abUL, 0xe6051d35UL, 0xa0e1d855UL, 0xd36b4cf1UL, 0xf544edebUL,
 298 0xb0e93524UL, 0xbebb8fbdUL, 0xa2d762cfUL, 0x49c92f54UL, 0x38b5f331UL, 0x7128a454UL,
 299 0x48392905UL, 0xa65b1db8UL, 0x851c97bdUL, 0xd675cf2fUL};
 300
 301 static const ulong32 S7[256] = {
 302 0x85e04019UL, 0x332bf567UL, 0x662dbfffUL, 0xcfc65693UL, 0x2a8d7f6fUL, 0xab9bc912UL,
 303 0xde6008a1UL, 0x2028da1fUL, 0x0227bce7UL, 0x4d642916UL, 0x18fac300UL, 0x50f18b82UL,
 304 0x2cb2cb11UL, 0xb232e75cUL, 0x4b3695f2UL, 0xb28707deUL, 0xa05fbcf6UL, 0xcd4181e9UL,
 305 0xe150210cUL, 0xe24ef1bdUL, 0xb168c381UL, 0xfde4e789UL, 0x5c79b0d8UL, 0x1e8bfd43UL,
 306 0x4d495001UL, 0x38be4341UL, 0x913cee1dUL, 0x92a79c3fUL, 0x089766beUL, 0xbaeeadf4UL,
 307 0x1286becfUL, 0xb6eacb19UL, 0x2660c200UL, 0x7565bde4UL, 0x64241f7aUL, 0x8248dca9UL,
 308 0xc3b3ad66UL, 0x28136086UL, 0x0bd8dfa8UL, 0x356d1cf2UL, 0x107789beUL, 0xb3b2e9ceUL,
 309 0x0502aa8fUL, 0x0bc0351eUL, 0x166bf52aUL, 0xeb12ff82UL, 0xe3486911UL, 0xd34d7516UL,
 310 0x4e7b3affUL, 0x5f43671bUL, 0x9cf6e037UL, 0x4981ac83UL, 0x334266ceUL, 0x8c9341b7UL,
 311 0xd0d854c0UL, 0xcb3a6c88UL, 0x47bc2829UL, 0x4725ba37UL, 0xa66ad22bUL, 0x7ad61f1eUL,
 312 0x0c5cbafaUL, 0x4437f107UL, 0xb6e79962UL, 0x42d2d816UL, 0x0a961288UL, 0xe1a5c06eUL,
 313 0x13749e67UL, 0x72fc081aUL, 0xb1d139f7UL, 0xf9583745UL, 0xcf19df58UL, 0xbec3f756UL,
 314 0xc06eba30UL, 0x07211b24UL, 0x45c28829UL, 0xc95e317fUL, 0xbc8ec511UL, 0x38bc46e9UL,
 315 0xc6e6fa14UL, 0xbae8584aUL, 0xad4ebc46UL, 0x468f508bUL, 0x7829435fUL, 0xf124183bUL,
 316 0x821dba9fUL, 0xaff60ff4UL, 0xea2c4e6dUL, 0x16e39264UL, 0x92544a8bUL, 0x009b4fc3UL,
 317 0xaba68cedUL, 0x9ac96f78UL, 0x06a5b79aUL, 0xb2856e6eUL, 0x1aec3ca9UL, 0xbe838688UL,
 318 0x0e0804e9UL, 0x55f1be56UL, 0xe7e5363bUL, 0xb3a1f25dUL, 0xf7debb85UL, 0x61fe033cUL,
 319 0x16746233UL, 0x3c034c28UL, 0xda6d0c74UL, 0x79aac56cUL, 0x3ce4e1adUL, 0x51f0c802UL,
 320 0x98f8f35aUL, 0x1626a49fUL, 0xeed82b29UL, 0x1d382fe3UL, 0x0c4fb99aUL, 0xbb325778UL,
 321 0x3ec6d97bUL, 0x6e77a6a9UL, 0xcb658b5cUL, 0xd45230c7UL, 0x2bd1408bUL, 0x60c03eb7UL,
 322 0xb9068d78UL, 0xa33754f4UL, 0xf430c87dUL, 0xc8a71302UL, 0xb96d8c32UL, 0xebd4e7beUL,
 323 0xbe8b9d2dUL, 0x7979fb06UL, 0xe7225308UL, 0x8b75cf77UL, 0x11ef8da4UL, 0xe083c858UL,
 324 0x8d6b786fUL, 0x5a6317a6UL, 0xfa5cf7a0UL, 0x5dda0033UL, 0xf28ebfb0UL, 0xf5b9c310UL,
 325 0xa0eac280UL, 0x08b9767aUL, 0xa3d9d2b0UL, 0x79d34217UL, 0x021a718dUL, 0x9ac6336aUL,
 326 0x2711fd60UL, 0x438050e3UL, 0x069908a8UL, 0x3d7fedc4UL, 0x826d2befUL, 0x4eeb8476UL,
 327 0x488dcf25UL, 0x36c9d566UL, 0x28e74e41UL, 0xc2610acaUL, 0x3d49a9cfUL, 0xbae3b9dfUL,
 328 0xb65f8de6UL, 0x92aeaf64UL, 0x3ac7d5e6UL, 0x9ea80509UL, 0xf22b017dUL, 0xa4173f70UL,
 329 0xdd1e16c3UL, 0x15e0d7f9UL, 0x50b1b887UL, 0x2b9f4fd5UL, 0x625aba82UL, 0x6a017962UL,
 330 0x2ec01b9cUL, 0x15488aa9UL, 0xd716e740UL, 0x40055a2cUL, 0x93d29a22UL, 0xe32dbf9aUL,
 331 0x058745b9UL, 0x3453dc1eUL, 0xd699296eUL, 0x496cff6fUL, 0x1c9f4986UL, 0xdfe2ed07UL,
 332 0xb87242d1UL, 0x19de7eaeUL, 0x053e561aUL, 0x15ad6f8cUL, 0x66626c1cUL, 0x7154c24cUL,
 333 0xea082b2aUL, 0x93eb2939UL, 0x17dcb0f0UL, 0x58d4f2aeUL, 0x9ea294fbUL, 0x52cf564cUL,
 334 0x9883fe66UL, 0x2ec40581UL, 0x763953c3UL, 0x01d6692eUL, 0xd3a0c108UL, 0xa1e7160eUL,
 335 0xe4f2dfa6UL, 0x693ed285UL, 0x74904698UL, 0x4c2b0eddUL, 0x4f757656UL, 0x5d393378UL,
 336 0xa132234fUL, 0x3d321c5dUL, 0xc3f5e194UL, 0x4b269301UL, 0xc79f022fUL, 0x3c997e7eUL,
 337 0x5e4f9504UL, 0x3ffafbbdUL, 0x76f7ad0eUL, 0x296693f4UL, 0x3d1fce6fUL, 0xc61e45beUL,
 338 0xd3b5ab34UL, 0xf72bf9b7UL, 0x1b0434c0UL, 0x4e72b567UL, 0x5592a33dUL, 0xb5229301UL,
 339 0xcfd2a87fUL, 0x60aeb767UL, 0x1814386bUL, 0x30bcc33dUL, 0x38a0c07dUL, 0xfd1606f2UL,
 340 0xc363519bUL, 0x589dd390UL, 0x5479f8e6UL, 0x1cb8d647UL, 0x97fd61a9UL, 0xea7759f4UL,
 341 0x2d57539dUL, 0x569a58cfUL, 0xe84e63adUL, 0x462e1b78UL, 0x6580f87eUL, 0xf3817914UL,
 342 0x91da55f4UL, 0x40a230f3UL, 0xd1988f35UL, 0xb6e318d2UL, 0x3ffa50bcUL, 0x3d40f021UL,
 343 0xc3c0bdaeUL, 0x4958c24cUL, 0x518f36b2UL, 0x84b1d370UL, 0x0fedce83UL, 0x878ddadaUL,
 344 0xf2a279c7UL, 0x94e01be8UL, 0x90716f4bUL, 0x954b8aa3UL};
 345
 346 static const ulong32 S8[256] = {
 347 0xe216300dUL, 0xbbddfffcUL, 0xa7ebdabdUL, 0x35648095UL, 0x7789f8b7UL, 0xe6c1121bUL,
 348 0x0e241600UL, 0x052ce8b5UL, 0x11a9cfb0UL, 0xe5952f11UL, 0xece7990aUL, 0x9386d174UL,
 349 0x2a42931cUL, 0x76e38111UL, 0xb12def3aUL, 0x37ddddfcUL, 0xde9adeb1UL, 0x0a0cc32cUL,
 350 0xbe197029UL, 0x84a00940UL, 0xbb243a0fUL, 0xb4d137cfUL, 0xb44e79f0UL, 0x049eedfdUL,
 351 0x0b15a15dUL, 0x480d3168UL, 0x8bbbde5aUL, 0x669ded42UL, 0xc7ece831UL, 0x3f8f95e7UL,
 352 0x72df191bUL, 0x7580330dUL, 0x94074251UL, 0x5c7dcdfaUL, 0xabbe6d63UL, 0xaa402164UL,
 353 0xb301d40aUL, 0x02e7d1caUL, 0x53571daeUL, 0x7a3182a2UL, 0x12a8ddecUL, 0xfdaa335dUL,
 354 0x176f43e8UL, 0x71fb46d4UL, 0x38129022UL, 0xce949ad4UL, 0xb84769adUL, 0x965bd862UL,
 355 0x82f3d055UL, 0x66fb9767UL, 0x15b80b4eUL, 0x1d5b47a0UL, 0x4cfde06fUL, 0xc28ec4b8UL,
 356 0x57e8726eUL, 0x647a78fcUL, 0x99865d44UL, 0x608bd593UL, 0x6c200e03UL, 0x39dc5ff6UL,
 357 0x5d0b00a3UL, 0xae63aff2UL, 0x7e8bd632UL, 0x70108c0cUL, 0xbbd35049UL, 0x2998df04UL,
 358 0x980cf42aUL, 0x9b6df491UL, 0x9e7edd53UL, 0x06918548UL, 0x58cb7e07UL, 0x3b74ef2eUL,
 359 0x522fffb1UL, 0xd24708ccUL, 0x1c7e27cdUL, 0xa4eb215bUL, 0x3cf1d2e2UL, 0x19b47a38UL,
 360 0x424f7618UL, 0x35856039UL, 0x9d17dee7UL, 0x27eb35e6UL, 0xc9aff67bUL, 0x36baf5b8UL,
 361 0x09c467cdUL, 0xc18910b1UL, 0xe11dbf7bUL, 0x06cd1af8UL, 0x7170c608UL, 0x2d5e3354UL,
 362 0xd4de495aUL, 0x64c6d006UL, 0xbcc0c62cUL, 0x3dd00db3UL, 0x708f8f34UL, 0x77d51b42UL,
 363 0x264f620fUL, 0x24b8d2bfUL, 0x15c1b79eUL, 0x46a52564UL, 0xf8d7e54eUL, 0x3e378160UL,
 364 0x7895cda5UL, 0x859c15a5UL, 0xe6459788UL, 0xc37bc75fUL, 0xdb07ba0cUL, 0x0676a3abUL,
 365 0x7f229b1eUL, 0x31842e7bUL, 0x24259fd7UL, 0xf8bef472UL, 0x835ffcb8UL, 0x6df4c1f2UL,
 366 0x96f5b195UL, 0xfd0af0fcUL, 0xb0fe134cUL, 0xe2506d3dUL, 0x4f9b12eaUL, 0xf215f225UL,
 367 0xa223736fUL, 0x9fb4c428UL, 0x25d04979UL, 0x34c713f8UL, 0xc4618187UL, 0xea7a6e98UL,
 368 0x7cd16efcUL, 0x1436876cUL, 0xf1544107UL, 0xbedeee14UL, 0x56e9af27UL, 0xa04aa441UL,
 369 0x3cf7c899UL, 0x92ecbae6UL, 0xdd67016dUL, 0x151682ebUL, 0xa842eedfUL, 0xfdba60b4UL,
 370 0xf1907b75UL, 0x20e3030fUL, 0x24d8c29eUL, 0xe139673bUL, 0xefa63fb8UL, 0x71873054UL,
 371 0xb6f2cf3bUL, 0x9f326442UL, 0xcb15a4ccUL, 0xb01a4504UL, 0xf1e47d8dUL, 0x844a1be5UL,
 372 0xbae7dfdcUL, 0x42cbda70UL, 0xcd7dae0aUL, 0x57e85b7aUL, 0xd53f5af6UL, 0x20cf4d8cUL,
 373 0xcea4d428UL, 0x79d130a4UL, 0x3486ebfbUL, 0x33d3cddcUL, 0x77853b53UL, 0x37effcb5UL,
 374 0xc5068778UL, 0xe580b3e6UL, 0x4e68b8f4UL, 0xc5c8b37eUL, 0x0d809ea2UL, 0x398feb7cUL,
 375 0x132a4f94UL, 0x43b7950eUL, 0x2fee7d1cUL, 0x223613bdUL, 0xdd06caa2UL, 0x37df932bUL,
 376 0xc4248289UL, 0xacf3ebc3UL, 0x5715f6b7UL, 0xef3478ddUL, 0xf267616fUL, 0xc148cbe4UL,
 377 0x9052815eUL, 0x5e410fabUL, 0xb48a2465UL, 0x2eda7fa4UL, 0xe87b40e4UL, 0xe98ea084UL,
 378 0x5889e9e1UL, 0xefd390fcUL, 0xdd07d35bUL, 0xdb485694UL, 0x38d7e5b2UL, 0x57720101UL,
 379 0x730edebcUL, 0x5b643113UL, 0x94917e4fUL, 0x503c2fbaUL, 0x646f1282UL, 0x7523d24aUL,
 380 0xe0779695UL, 0xf9c17a8fUL, 0x7a5b2121UL, 0xd187b896UL, 0x29263a4dUL, 0xba510cdfUL,
 381 0x81f47c9fUL, 0xad1163edUL, 0xea7b5965UL, 0x1a00726eUL, 0x11403092UL, 0x00da6d77UL,
 382 0x4a0cdd61UL, 0xad1f4603UL, 0x605bdfb0UL, 0x9eedc364UL, 0x22ebe6a8UL, 0xcee7d28aUL,
 383 0xa0e736a0UL, 0x5564a6b9UL, 0x10853209UL, 0xc7eb8f37UL, 0x2de705caUL, 0x8951570fUL,
 384 0xdf09822bUL, 0xbd691a6cUL, 0xaa12e4f2UL, 0x87451c0fUL, 0xe0f6a27aUL, 0x3ada4819UL,
 385 0x4cf1764fUL, 0x0d771c2bUL, 0x67cdb156UL, 0x350d8384UL, 0x5938fa0fUL, 0x42399ef3UL,
 386 0x36997b07UL, 0x0e84093dUL, 0x4aa93e61UL, 0x8360d87bUL, 0x1fa98b0cUL, 0x1149382cUL,
 387 0xe97625a5UL, 0x0614d1b7UL, 0x0e25244bUL, 0x0c768347UL, 0x589e8d82UL, 0x0d2059d1UL,
 388 0xa466bb1eUL, 0xf8da0a82UL, 0x04f19130UL, 0xba6e4ec0UL, 0x99265164UL, 0x1ee7230dUL,
 389 0x50b2ad80UL, 0xeaee6801UL, 0x8db2a283UL, 0xea8bf59eUL};
 390
 391 /* returns the i'th byte of a variable */
 392 #ifdef _MSC_VER
 393    #define GB(x, i) ((unsigned char)((x[(15-i)>>2])>>(unsigned)(8*((15-i)&3))))
 394 #else
 395    #define GB(x, i) (((x[(15-i)>>2])>>(unsigned)(8*((15-i)&3)))&255)
 396 #endif
 397
 398  /**
 399     Initialize the LTC_CAST5 block cipher
 400     @param key The symmetric key you wish to pass
 401     @param keylen The key length in bytes
 402     @param num_rounds The number of rounds desired (0 for default)
 403     @param skey The key in as scheduled by this function.
 404     @return CRYPT_OK if successful
 405  */
 406 #ifdef LTC_CLEAN_STACK
 407 static int _cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
 408 #else
 409 int cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
 410 #endif
 411 {
 412    ulong32 x[4], z[4];
 413    unsigned char buf[16];
 414    int y, i;
 415
 416    LTC_ARGCHK(key != NULL);
 417    LTC_ARGCHK(skey != NULL);
 418
 419    if (num_rounds != 12 && num_rounds != 16 && num_rounds != 0) {
 420       return CRYPT_INVALID_ROUNDS;
 421    }
 422
 423    if (num_rounds == 12 && keylen > 10) {
 424       return CRYPT_INVALID_ROUNDS;
 425    }
 426
 427    if (keylen < 5 || keylen > 16) {
 428       return CRYPT_INVALID_KEYSIZE;
 429    }
 430
 431    /* extend the key as required */
 432    zeromem(buf, sizeof(buf));
 433    XMEMCPY(buf, key, (size_t)keylen);
 434
 435    /* load and start the awful looking network */
 436    for (y = 0; y < 4; y++) {
 437        LOAD32H(x[3-y],buf+4*y);
 438    }
 439
 440    for (i = y = 0; y < 2; y++) {
 441         z[3] = x[3] ^ S5[GB(x, 0xD)] ^ S6[GB(x, 0xF)] ^ S7[GB(x, 0xC)] ^ S8[GB(x, 0xE)] ^ S7[GB(x, 0x8)];
 442         z[2] = x[1] ^ S5[GB(z, 0x0)] ^ S6[GB(z, 0x2)] ^ S7[GB(z, 0x1)] ^ S8[GB(z, 0x3)] ^ S8[GB(x, 0xA)];
 443         z[1] = x[0] ^ S5[GB(z, 0x7)] ^ S6[GB(z, 0x6)] ^ S7[GB(z, 0x5)] ^ S8[GB(z, 0x4)] ^ S5[GB(x, 0x9)];
 444         z[0] = x[2] ^ S5[GB(z, 0xA)] ^ S6[GB(z, 0x9)] ^ S7[GB(z, 0xb)] ^ S8[GB(z, 0x8)] ^ S6[GB(x, 0xB)];
 445         skey->cast5.K[i++] = S5[GB(z, 0x8)] ^ S6[GB(z, 0x9)] ^ S7[GB(z, 0x7)] ^ S8[GB(z, 0x6)] ^ S5[GB(z, 0x2)];
 446         skey->cast5.K[i++] = S5[GB(z, 0xA)] ^ S6[GB(z, 0xB)] ^ S7[GB(z, 0x5)] ^ S8[GB(z, 0x4)] ^ S6[GB(z, 0x6)];
 447         skey->cast5.K[i++] = S5[GB(z, 0xC)] ^ S6[GB(z, 0xd)] ^ S7[GB(z, 0x3)] ^ S8[GB(z, 0x2)] ^ S7[GB(z, 0x9)];
 448         skey->cast5.K[i++] = S5[GB(z, 0xE)] ^ S6[GB(z, 0xF)] ^ S7[GB(z, 0x1)] ^ S8[GB(z, 0x0)] ^ S8[GB(z, 0xc)];
 449
 450         x[3] = z[1] ^ S5[GB(z, 0x5)] ^ S6[GB(z, 0x7)] ^ S7[GB(z, 0x4)] ^ S8[GB(z, 0x6)] ^ S7[GB(z, 0x0)];
 451         x[2] = z[3] ^ S5[GB(x, 0x0)] ^ S6[GB(x, 0x2)] ^ S7[GB(x, 0x1)] ^ S8[GB(x, 0x3)] ^ S8[GB(z, 0x2)];
 452         x[1] = z[2] ^ S5[GB(x, 0x7)] ^ S6[GB(x, 0x6)] ^ S7[GB(x, 0x5)] ^ S8[GB(x, 0x4)] ^ S5[GB(z, 0x1)];
 453         x[0] = z[0] ^ S5[GB(x, 0xA)] ^ S6[GB(x, 0x9)] ^ S7[GB(x, 0xb)] ^ S8[GB(x, 0x8)] ^ S6[GB(z, 0x3)];
 454         skey->cast5.K[i++] = S5[GB(x, 0x3)] ^ S6[GB(x, 0x2)] ^ S7[GB(x, 0xc)] ^ S8[GB(x, 0xd)] ^ S5[GB(x, 0x8)];
 455         skey->cast5.K[i++] = S5[GB(x, 0x1)] ^ S6[GB(x, 0x0)] ^ S7[GB(x, 0xe)] ^ S8[GB(x, 0xf)] ^ S6[GB(x, 0xd)];
 456         skey->cast5.K[i++] = S5[GB(x, 0x7)] ^ S6[GB(x, 0x6)] ^ S7[GB(x, 0x8)] ^ S8[GB(x, 0x9)] ^ S7[GB(x, 0x3)];
 457         skey->cast5.K[i++] = S5[GB(x, 0x5)] ^ S6[GB(x, 0x4)] ^ S7[GB(x, 0xa)] ^ S8[GB(x, 0xb)] ^ S8[GB(x, 0x7)];
 458
 459         /* second half */
 460         z[3] = x[3] ^ S5[GB(x, 0xD)] ^ S6[GB(x, 0xF)] ^ S7[GB(x, 0xC)] ^ S8[GB(x, 0xE)] ^ S7[GB(x, 0x8)];
 461         z[2] = x[1] ^ S5[GB(z, 0x0)] ^ S6[GB(z, 0x2)] ^ S7[GB(z, 0x1)] ^ S8[GB(z, 0x3)] ^ S8[GB(x, 0xA)];
 462         z[1] = x[0] ^ S5[GB(z, 0x7)] ^ S6[GB(z, 0x6)] ^ S7[GB(z, 0x5)] ^ S8[GB(z, 0x4)] ^ S5[GB(x, 0x9)];
 463         z[0] = x[2] ^ S5[GB(z, 0xA)] ^ S6[GB(z, 0x9)] ^ S7[GB(z, 0xb)] ^ S8[GB(z, 0x8)] ^ S6[GB(x, 0xB)];
 464         skey->cast5.K[i++] = S5[GB(z, 0x3)] ^ S6[GB(z, 0x2)] ^ S7[GB(z, 0xc)] ^ S8[GB(z, 0xd)] ^ S5[GB(z, 0x9)];
 465         skey->cast5.K[i++] = S5[GB(z, 0x1)] ^ S6[GB(z, 0x0)] ^ S7[GB(z, 0xe)] ^ S8[GB(z, 0xf)] ^ S6[GB(z, 0xc)];
 466         skey->cast5.K[i++] = S5[GB(z, 0x7)] ^ S6[GB(z, 0x6)] ^ S7[GB(z, 0x8)] ^ S8[GB(z, 0x9)] ^ S7[GB(z, 0x2)];
 467         skey->cast5.K[i++] = S5[GB(z, 0x5)] ^ S6[GB(z, 0x4)] ^ S7[GB(z, 0xa)] ^ S8[GB(z, 0xb)] ^ S8[GB(z, 0x6)];
 468
 469         x[3] = z[1] ^ S5[GB(z, 0x5)] ^ S6[GB(z, 0x7)] ^ S7[GB(z, 0x4)] ^ S8[GB(z, 0x6)] ^ S7[GB(z, 0x0)];
 470         x[2] = z[3] ^ S5[GB(x, 0x0)] ^ S6[GB(x, 0x2)] ^ S7[GB(x, 0x1)] ^ S8[GB(x, 0x3)] ^ S8[GB(z, 0x2)];
 471         x[1] = z[2] ^ S5[GB(x, 0x7)] ^ S6[GB(x, 0x6)] ^ S7[GB(x, 0x5)] ^ S8[GB(x, 0x4)] ^ S5[GB(z, 0x1)];
 472         x[0] = z[0] ^ S5[GB(x, 0xA)] ^ S6[GB(x, 0x9)] ^ S7[GB(x, 0xb)] ^ S8[GB(x, 0x8)] ^ S6[GB(z, 0x3)];
 473         skey->cast5.K[i++] = S5[GB(x, 0x8)] ^ S6[GB(x, 0x9)] ^ S7[GB(x, 0x7)] ^ S8[GB(x, 0x6)] ^ S5[GB(x, 0x3)];
 474         skey->cast5.K[i++] = S5[GB(x, 0xa)] ^ S6[GB(x, 0xb)] ^ S7[GB(x, 0x5)] ^ S8[GB(x, 0x4)] ^ S6[GB(x, 0x7)];
 475         skey->cast5.K[i++] = S5[GB(x, 0xc)] ^ S6[GB(x, 0xd)] ^ S7[GB(x, 0x3)] ^ S8[GB(x, 0x2)] ^ S7[GB(x, 0x8)];
 476         skey->cast5.K[i++] = S5[GB(x, 0xe)] ^ S6[GB(x, 0xf)] ^ S7[GB(x, 0x1)] ^ S8[GB(x, 0x0)] ^ S8[GB(x, 0xd)];
 477    }
 478
 479    skey->cast5.keylen = keylen;
 480
 481 #ifdef LTC_CLEAN_STACK
 482    zeromem(buf, sizeof(buf));
 483    zeromem(x, sizeof(x));
 484    zeromem(z, sizeof(z));
 485 #endif
 486
 487    return CRYPT_OK;
 488 }
 489
 490 #ifdef LTC_CLEAN_STACK
 491 int cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
 492 {
 493    int z;
 494    z = _cast5_setup(key, keylen, num_rounds, skey);
 495    burn_stack(sizeof(ulong32)*8 + 16 + sizeof(int)*2);
 496    return z;
 497 }
 498 #endif
 499
 500 #ifdef _MSC_VER
 501    #define INLINE __inline
 502 #else
 503    #define INLINE
 504 #endif
 505
 506 INLINE static ulong32 FI(ulong32 R, ulong32 Km, ulong32 Kr)
 507 {
 508    ulong32 I;
 509    I = (Km + R);
 510    I = ROL(I, Kr);
 511    return ((S1[byte(I, 3)] ^ S2[byte(I,2)]) - S3[byte(I,1)]) + S4[byte(I,0)];
 512 }
 513
 514 INLINE static ulong32 FII(ulong32 R, ulong32 Km, ulong32 Kr)
 515 {
 516    ulong32 I;
 517    I = (Km ^ R);
 518    I = ROL(I, Kr);
 519    return ((S1[byte(I, 3)] - S2[byte(I,2)]) + S3[byte(I,1)]) ^ S4[byte(I,0)];
 520 }
 521
 522 INLINE static ulong32 FIII(ulong32 R, ulong32 Km, ulong32 Kr)
 523 {
 524    ulong32 I;
 525    I = (Km - R);
 526    I = ROL(I, Kr);
 527    return ((S1[byte(I, 3)] + S2[byte(I,2)]) ^ S3[byte(I,1)]) - S4[byte(I,0)];
 528 }
 529
 530 /**
 531   Encrypts a block of text with LTC_CAST5
 532   @param pt The input plaintext (8 bytes)
 533   @param ct The output ciphertext (8 bytes)
 534   @param skey The key as scheduled
 535 */
 536 #ifdef LTC_CLEAN_STACK
 537 static int _cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
 538 #else
 539 int cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
 540 #endif
 541 {
 542    ulong32 R, L;
 543
 544    LTC_ARGCHK(pt   != NULL);
 545    LTC_ARGCHK(ct   != NULL);
 546    LTC_ARGCHK(skey != NULL);
 547
 548    LOAD32H(L,&pt[0]);
 549    LOAD32H(R,&pt[4]);
 550    L ^= FI(R, skey->cast5.K[0], skey->cast5.K[16]);
 551    R ^= FII(L, skey->cast5.K[1], skey->cast5.K[17]);
 552    L ^= FIII(R, skey->cast5.K[2], skey->cast5.K[18]);
 553    R ^= FI(L, skey->cast5.K[3], skey->cast5.K[19]);
 554    L ^= FII(R, skey->cast5.K[4], skey->cast5.K[20]);
 555    R ^= FIII(L, skey->cast5.K[5], skey->cast5.K[21]);
 556    L ^= FI(R, skey->cast5.K[6], skey->cast5.K[22]);
 557    R ^= FII(L, skey->cast5.K[7], skey->cast5.K[23]);
 558    L ^= FIII(R, skey->cast5.K[8], skey->cast5.K[24]);
 559    R ^= FI(L, skey->cast5.K[9], skey->cast5.K[25]);
 560    L ^= FII(R, skey->cast5.K[10], skey->cast5.K[26]);
 561    R ^= FIII(L, skey->cast5.K[11], skey->cast5.K[27]);
 562    if (skey->cast5.keylen > 10) {
 563       L ^= FI(R, skey->cast5.K[12], skey->cast5.K[28]);
 564       R ^= FII(L, skey->cast5.K[13], skey->cast5.K[29]);
 565       L ^= FIII(R, skey->cast5.K[14], skey->cast5.K[30]);
 566       R ^= FI(L, skey->cast5.K[15], skey->cast5.K[31]);
 567    }
 568    STORE32H(R,&ct[0]);
 569    STORE32H(L,&ct[4]);
 570    return CRYPT_OK;
 571 }
 572
 573
 574 #ifdef LTC_CLEAN_STACK
 575 int cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
 576 {
 577    int err =_cast5_ecb_encrypt(pt,ct,skey);
 578    burn_stack(sizeof(ulong32)*3);
 579    return err;
 580 }
 581 #endif
 582
 583 /**
 584   Decrypts a block of text with LTC_CAST5
 585   @param ct The input ciphertext (8 bytes)
 586   @param pt The output plaintext (8 bytes)
 587   @param skey The key as scheduled
 588 */
 589 #ifdef LTC_CLEAN_STACK
 590 static int _cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
 591 #else
 592 int cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
 593 #endif
 594 {
 595    ulong32 R, L;
 596
 597    LTC_ARGCHK(pt   != NULL);
 598    LTC_ARGCHK(ct   != NULL);
 599    LTC_ARGCHK(skey != NULL);
 600
 601    LOAD32H(R,&ct[0]);
 602    LOAD32H(L,&ct[4]);
 603    if (skey->cast5.keylen > 10) {
 604       R ^= FI(L, skey->cast5.K[15], skey->cast5.K[31]);
 605       L ^= FIII(R, skey->cast5.K[14], skey->cast5.K[30]);
 606       R ^= FII(L, skey->cast5.K[13], skey->cast5.K[29]);
 607       L ^= FI(R, skey->cast5.K[12], skey->cast5.K[28]);
 608    }
 609    R ^= FIII(L, skey->cast5.K[11], skey->cast5.K[27]);
 610    L ^= FII(R, skey->cast5.K[10], skey->cast5.K[26]);
 611    R ^= FI(L, skey->cast5.K[9], skey->cast5.K[25]);
 612    L ^= FIII(R, skey->cast5.K[8], skey->cast5.K[24]);
 613    R ^= FII(L, skey->cast5.K[7], skey->cast5.K[23]);
 614    L ^= FI(R, skey->cast5.K[6], skey->cast5.K[22]);
 615    R ^= FIII(L, skey->cast5.K[5], skey->cast5.K[21]);
 616    L ^= FII(R, skey->cast5.K[4], skey->cast5.K[20]);
 617    R ^= FI(L, skey->cast5.K[3], skey->cast5.K[19]);
 618    L ^= FIII(R, skey->cast5.K[2], skey->cast5.K[18]);
 619    R ^= FII(L, skey->cast5.K[1], skey->cast5.K[17]);
 620    L ^= FI(R, skey->cast5.K[0], skey->cast5.K[16]);
 621    STORE32H(L,&pt[0]);
 622    STORE32H(R,&pt[4]);
 623
 624    return CRYPT_OK;
 625 }
 626
 627 #ifdef LTC_CLEAN_STACK
 628 int cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
 629 {
 630    int err = _cast5_ecb_decrypt(ct,pt,skey);
 631    burn_stack(sizeof(ulong32)*3);
 632    return err;
 633 }
 634 #endif
 635
 636 /**
 637   Performs a self-test of the LTC_CAST5 block cipher
 638   @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
 639 */
 640 int cast5_test(void)
 641 {
 642  #ifndef LTC_TEST
 643     return CRYPT_NOP;
 644  #else
 645    static const struct {
 646        int keylen;
 647        unsigned char key[16];
 648        unsigned char pt[8];
 649        unsigned char ct[8];
 650    } tests[] = {
 651      { 16,
 652        {0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78, 0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A},
 653        {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
 654        {0x23, 0x8B, 0x4F, 0xE5, 0x84, 0x7E, 0x44, 0xB2}
 655      },
 656      { 10,
 657        {0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78, 0x23, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
 658        {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
 659        {0xEB, 0x6A, 0x71, 0x1A, 0x2C, 0x02, 0x27, 0x1B},
 660      },
 661      { 5,
 662        {0x01, 0x23, 0x45, 0x67, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
 663        {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
 664        {0x7A, 0xC8, 0x16, 0xD1, 0x6E, 0x9B, 0x30, 0x2E}
 665      }
 666    };
 667    int i, y, err;
 668    symmetric_key key;
 669    unsigned char tmp[2][8];
 670
 671    for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
 672        if ((err = cast5_setup(tests[i].key, tests[i].keylen, 0, &key)) != CRYPT_OK) {
 673           return err;
 674        }
 675        cast5_ecb_encrypt(tests[i].pt, tmp[0], &key);
 676        cast5_ecb_decrypt(tmp[0], tmp[1], &key);
 677        if ((compare_testvector(tmp[0], 8, tests[i].ct, 8, "CAST5 Encrypt", i) != 0) ||
 678              (compare_testvector(tmp[1], 8, tests[i].pt, 8, "CAST5 Decrypt", i) != 0)) {
 679           return CRYPT_FAIL_TESTVECTOR;
 680        }
 681       /* now see if we can encrypt all zero bytes 1000 times, decrypt and come back where we started */
 682       for (y = 0; y < 8; y++) tmp[0][y] = 0;
 683       for (y = 0; y < 1000; y++) cast5_ecb_encrypt(tmp[0], tmp[0], &key);
 684       for (y = 0; y < 1000; y++) cast5_ecb_decrypt(tmp[0], tmp[0], &key);
 685       for (y = 0; y < 8; y++) if (tmp[0][y] != 0) return CRYPT_FAIL_TESTVECTOR;
 686
 687    }
 688    return CRYPT_OK;
 689  #endif
 690 }
 691
 692 /** Terminate the context
 693    @param skey    The scheduled key
 694 */
 695 void cast5_done(symmetric_key *skey)
 696 {
 697   LTC_UNUSED_PARAM(skey);
 698 }
 699
 700 /**
 701   Gets suitable key size
 702   @param keysize [in/out] The length of the recommended key (in bytes).  This function will store the suitable size back in this variable.
 703   @return CRYPT_OK if the input key size is acceptable.
 704 */
 705 int cast5_keysize(int *keysize)
 706 {
 707    LTC_ARGCHK(keysize != NULL);
 708    if (*keysize < 5) {
 709       return CRYPT_INVALID_KEYSIZE;
 710    } else if (*keysize > 16) {
 711       *keysize = 16;
 712    }
 713    return CRYPT_OK;
 714 }
 715
 716 #endif
 717
 718 /* ref:         $Format:%D$ */
 719 /* git commit:  $Format:%H$ */
 720 /* commit time: $Format:%ai$ */