view libtomcrypt/src/ciphers/cast5.c @ 1653:76189c9ffea2

External Public-Key Authentication API (#72) * Implemented dynamic loading of an external plug-in shared library to delegate public key authentication * Moved conditional compilation of the plugin infrastructure into the configure.ac script to be able to add -ldl to dropbear build only when the flag is enabled * Added tags file to the ignore list * Updated API to have the constructor to return function pointers in the pliugin instance. Added support for passing user name to the checkpubkey function. Added options to the session returned by the plugin and have dropbear to parse and process them * Added -rdynamic to the linker flags when EPKA is enabled * Changed the API to pass a previously created session to the checkPubKey function (created during preauth) * Added documentation to the API * Added parameter addrstring to plugin creation function * Modified the API to retrieve the auth options. Instead of having them as field of the EPKASession struct, they are stored internally (plugin-dependent) in the plugin/session and retrieved through a pointer to a function (in the session) * Changed option string to be a simple char * instead of unsigned char *
author fabriziobertocci <fabriziobertocci@gmail.com>
date Wed, 15 May 2019 09:43:57 -0400
parents 6dba84798cd5
children
line wrap: on
line source

/* LibTomCrypt, modular cryptographic library -- Tom St Denis
 *
 * LibTomCrypt is a library that provides various cryptographic
 * algorithms in a highly modular and flexible manner.
 *
 * The library is free for all purposes without any express
 * guarantee it works.
 */

 /**
   @file cast5.c
   Implementation of LTC_CAST5 (RFC 2144) by Tom St Denis
 */
#include "tomcrypt.h"

#ifdef LTC_CAST5

const struct ltc_cipher_descriptor cast5_desc = {
   "cast5",
   15,
   5, 16, 8, 16,
   &cast5_setup,
   &cast5_ecb_encrypt,
   &cast5_ecb_decrypt,
   &cast5_test,
   &cast5_done,
   &cast5_keysize,
   NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
};

static const ulong32 S1[256] = {
0x30fb40d4UL, 0x9fa0ff0bUL, 0x6beccd2fUL, 0x3f258c7aUL, 0x1e213f2fUL, 0x9c004dd3UL,
0x6003e540UL, 0xcf9fc949UL, 0xbfd4af27UL, 0x88bbbdb5UL, 0xe2034090UL, 0x98d09675UL,
0x6e63a0e0UL, 0x15c361d2UL, 0xc2e7661dUL, 0x22d4ff8eUL, 0x28683b6fUL, 0xc07fd059UL,
0xff2379c8UL, 0x775f50e2UL, 0x43c340d3UL, 0xdf2f8656UL, 0x887ca41aUL, 0xa2d2bd2dUL,
0xa1c9e0d6UL, 0x346c4819UL, 0x61b76d87UL, 0x22540f2fUL, 0x2abe32e1UL, 0xaa54166bUL,
0x22568e3aUL, 0xa2d341d0UL, 0x66db40c8UL, 0xa784392fUL, 0x004dff2fUL, 0x2db9d2deUL,
0x97943facUL, 0x4a97c1d8UL, 0x527644b7UL, 0xb5f437a7UL, 0xb82cbaefUL, 0xd751d159UL,
0x6ff7f0edUL, 0x5a097a1fUL, 0x827b68d0UL, 0x90ecf52eUL, 0x22b0c054UL, 0xbc8e5935UL,
0x4b6d2f7fUL, 0x50bb64a2UL, 0xd2664910UL, 0xbee5812dUL, 0xb7332290UL, 0xe93b159fUL,
0xb48ee411UL, 0x4bff345dUL, 0xfd45c240UL, 0xad31973fUL, 0xc4f6d02eUL, 0x55fc8165UL,
0xd5b1caadUL, 0xa1ac2daeUL, 0xa2d4b76dUL, 0xc19b0c50UL, 0x882240f2UL, 0x0c6e4f38UL,
0xa4e4bfd7UL, 0x4f5ba272UL, 0x564c1d2fUL, 0xc59c5319UL, 0xb949e354UL, 0xb04669feUL,
0xb1b6ab8aUL, 0xc71358ddUL, 0x6385c545UL, 0x110f935dUL, 0x57538ad5UL, 0x6a390493UL,
0xe63d37e0UL, 0x2a54f6b3UL, 0x3a787d5fUL, 0x6276a0b5UL, 0x19a6fcdfUL, 0x7a42206aUL,
0x29f9d4d5UL, 0xf61b1891UL, 0xbb72275eUL, 0xaa508167UL, 0x38901091UL, 0xc6b505ebUL,
0x84c7cb8cUL, 0x2ad75a0fUL, 0x874a1427UL, 0xa2d1936bUL, 0x2ad286afUL, 0xaa56d291UL,
0xd7894360UL, 0x425c750dUL, 0x93b39e26UL, 0x187184c9UL, 0x6c00b32dUL, 0x73e2bb14UL,
0xa0bebc3cUL, 0x54623779UL, 0x64459eabUL, 0x3f328b82UL, 0x7718cf82UL, 0x59a2cea6UL,
0x04ee002eUL, 0x89fe78e6UL, 0x3fab0950UL, 0x325ff6c2UL, 0x81383f05UL, 0x6963c5c8UL,
0x76cb5ad6UL, 0xd49974c9UL, 0xca180dcfUL, 0x380782d5UL, 0xc7fa5cf6UL, 0x8ac31511UL,
0x35e79e13UL, 0x47da91d0UL, 0xf40f9086UL, 0xa7e2419eUL, 0x31366241UL, 0x051ef495UL,
0xaa573b04UL, 0x4a805d8dUL, 0x548300d0UL, 0x00322a3cUL, 0xbf64cddfUL, 0xba57a68eUL,
0x75c6372bUL, 0x50afd341UL, 0xa7c13275UL, 0x915a0bf5UL, 0x6b54bfabUL, 0x2b0b1426UL,
0xab4cc9d7UL, 0x449ccd82UL, 0xf7fbf265UL, 0xab85c5f3UL, 0x1b55db94UL, 0xaad4e324UL,
0xcfa4bd3fUL, 0x2deaa3e2UL, 0x9e204d02UL, 0xc8bd25acUL, 0xeadf55b3UL, 0xd5bd9e98UL,
0xe31231b2UL, 0x2ad5ad6cUL, 0x954329deUL, 0xadbe4528UL, 0xd8710f69UL, 0xaa51c90fUL,
0xaa786bf6UL, 0x22513f1eUL, 0xaa51a79bUL, 0x2ad344ccUL, 0x7b5a41f0UL, 0xd37cfbadUL,
0x1b069505UL, 0x41ece491UL, 0xb4c332e6UL, 0x032268d4UL, 0xc9600accUL, 0xce387e6dUL,
0xbf6bb16cUL, 0x6a70fb78UL, 0x0d03d9c9UL, 0xd4df39deUL, 0xe01063daUL, 0x4736f464UL,
0x5ad328d8UL, 0xb347cc96UL, 0x75bb0fc3UL, 0x98511bfbUL, 0x4ffbcc35UL, 0xb58bcf6aUL,
0xe11f0abcUL, 0xbfc5fe4aUL, 0xa70aec10UL, 0xac39570aUL, 0x3f04442fUL, 0x6188b153UL,
0xe0397a2eUL, 0x5727cb79UL, 0x9ceb418fUL, 0x1cacd68dUL, 0x2ad37c96UL, 0x0175cb9dUL,
0xc69dff09UL, 0xc75b65f0UL, 0xd9db40d8UL, 0xec0e7779UL, 0x4744ead4UL, 0xb11c3274UL,
0xdd24cb9eUL, 0x7e1c54bdUL, 0xf01144f9UL, 0xd2240eb1UL, 0x9675b3fdUL, 0xa3ac3755UL,
0xd47c27afUL, 0x51c85f4dUL, 0x56907596UL, 0xa5bb15e6UL, 0x580304f0UL, 0xca042cf1UL,
0x011a37eaUL, 0x8dbfaadbUL, 0x35ba3e4aUL, 0x3526ffa0UL, 0xc37b4d09UL, 0xbc306ed9UL,
0x98a52666UL, 0x5648f725UL, 0xff5e569dUL, 0x0ced63d0UL, 0x7c63b2cfUL, 0x700b45e1UL,
0xd5ea50f1UL, 0x85a92872UL, 0xaf1fbda7UL, 0xd4234870UL, 0xa7870bf3UL, 0x2d3b4d79UL,
0x42e04198UL, 0x0cd0ede7UL, 0x26470db8UL, 0xf881814cUL, 0x474d6ad7UL, 0x7c0c5e5cUL,
0xd1231959UL, 0x381b7298UL, 0xf5d2f4dbUL, 0xab838653UL, 0x6e2f1e23UL, 0x83719c9eUL,
0xbd91e046UL, 0x9a56456eUL, 0xdc39200cUL, 0x20c8c571UL, 0x962bda1cUL, 0xe1e696ffUL,
0xb141ab08UL, 0x7cca89b9UL, 0x1a69e783UL, 0x02cc4843UL, 0xa2f7c579UL, 0x429ef47dUL,
0x427b169cUL, 0x5ac9f049UL, 0xdd8f0f00UL, 0x5c8165bfUL};

static const ulong32 S2[256] = {
0x1f201094UL, 0xef0ba75bUL, 0x69e3cf7eUL, 0x393f4380UL, 0xfe61cf7aUL, 0xeec5207aUL,
0x55889c94UL, 0x72fc0651UL, 0xada7ef79UL, 0x4e1d7235UL, 0xd55a63ceUL, 0xde0436baUL,
0x99c430efUL, 0x5f0c0794UL, 0x18dcdb7dUL, 0xa1d6eff3UL, 0xa0b52f7bUL, 0x59e83605UL,
0xee15b094UL, 0xe9ffd909UL, 0xdc440086UL, 0xef944459UL, 0xba83ccb3UL, 0xe0c3cdfbUL,
0xd1da4181UL, 0x3b092ab1UL, 0xf997f1c1UL, 0xa5e6cf7bUL, 0x01420ddbUL, 0xe4e7ef5bUL,
0x25a1ff41UL, 0xe180f806UL, 0x1fc41080UL, 0x179bee7aUL, 0xd37ac6a9UL, 0xfe5830a4UL,
0x98de8b7fUL, 0x77e83f4eUL, 0x79929269UL, 0x24fa9f7bUL, 0xe113c85bUL, 0xacc40083UL,
0xd7503525UL, 0xf7ea615fUL, 0x62143154UL, 0x0d554b63UL, 0x5d681121UL, 0xc866c359UL,
0x3d63cf73UL, 0xcee234c0UL, 0xd4d87e87UL, 0x5c672b21UL, 0x071f6181UL, 0x39f7627fUL,
0x361e3084UL, 0xe4eb573bUL, 0x602f64a4UL, 0xd63acd9cUL, 0x1bbc4635UL, 0x9e81032dUL,
0x2701f50cUL, 0x99847ab4UL, 0xa0e3df79UL, 0xba6cf38cUL, 0x10843094UL, 0x2537a95eUL,
0xf46f6ffeUL, 0xa1ff3b1fUL, 0x208cfb6aUL, 0x8f458c74UL, 0xd9e0a227UL, 0x4ec73a34UL,
0xfc884f69UL, 0x3e4de8dfUL, 0xef0e0088UL, 0x3559648dUL, 0x8a45388cUL, 0x1d804366UL,
0x721d9bfdUL, 0xa58684bbUL, 0xe8256333UL, 0x844e8212UL, 0x128d8098UL, 0xfed33fb4UL,
0xce280ae1UL, 0x27e19ba5UL, 0xd5a6c252UL, 0xe49754bdUL, 0xc5d655ddUL, 0xeb667064UL,
0x77840b4dUL, 0xa1b6a801UL, 0x84db26a9UL, 0xe0b56714UL, 0x21f043b7UL, 0xe5d05860UL,
0x54f03084UL, 0x066ff472UL, 0xa31aa153UL, 0xdadc4755UL, 0xb5625dbfUL, 0x68561be6UL,
0x83ca6b94UL, 0x2d6ed23bUL, 0xeccf01dbUL, 0xa6d3d0baUL, 0xb6803d5cUL, 0xaf77a709UL,
0x33b4a34cUL, 0x397bc8d6UL, 0x5ee22b95UL, 0x5f0e5304UL, 0x81ed6f61UL, 0x20e74364UL,
0xb45e1378UL, 0xde18639bUL, 0x881ca122UL, 0xb96726d1UL, 0x8049a7e8UL, 0x22b7da7bUL,
0x5e552d25UL, 0x5272d237UL, 0x79d2951cUL, 0xc60d894cUL, 0x488cb402UL, 0x1ba4fe5bUL,
0xa4b09f6bUL, 0x1ca815cfUL, 0xa20c3005UL, 0x8871df63UL, 0xb9de2fcbUL, 0x0cc6c9e9UL,
0x0beeff53UL, 0xe3214517UL, 0xb4542835UL, 0x9f63293cUL, 0xee41e729UL, 0x6e1d2d7cUL,
0x50045286UL, 0x1e6685f3UL, 0xf33401c6UL, 0x30a22c95UL, 0x31a70850UL, 0x60930f13UL,
0x73f98417UL, 0xa1269859UL, 0xec645c44UL, 0x52c877a9UL, 0xcdff33a6UL, 0xa02b1741UL,
0x7cbad9a2UL, 0x2180036fUL, 0x50d99c08UL, 0xcb3f4861UL, 0xc26bd765UL, 0x64a3f6abUL,
0x80342676UL, 0x25a75e7bUL, 0xe4e6d1fcUL, 0x20c710e6UL, 0xcdf0b680UL, 0x17844d3bUL,
0x31eef84dUL, 0x7e0824e4UL, 0x2ccb49ebUL, 0x846a3baeUL, 0x8ff77888UL, 0xee5d60f6UL,
0x7af75673UL, 0x2fdd5cdbUL, 0xa11631c1UL, 0x30f66f43UL, 0xb3faec54UL, 0x157fd7faUL,
0xef8579ccUL, 0xd152de58UL, 0xdb2ffd5eUL, 0x8f32ce19UL, 0x306af97aUL, 0x02f03ef8UL,
0x99319ad5UL, 0xc242fa0fUL, 0xa7e3ebb0UL, 0xc68e4906UL, 0xb8da230cUL, 0x80823028UL,
0xdcdef3c8UL, 0xd35fb171UL, 0x088a1bc8UL, 0xbec0c560UL, 0x61a3c9e8UL, 0xbca8f54dUL,
0xc72feffaUL, 0x22822e99UL, 0x82c570b4UL, 0xd8d94e89UL, 0x8b1c34bcUL, 0x301e16e6UL,
0x273be979UL, 0xb0ffeaa6UL, 0x61d9b8c6UL, 0x00b24869UL, 0xb7ffce3fUL, 0x08dc283bUL,
0x43daf65aUL, 0xf7e19798UL, 0x7619b72fUL, 0x8f1c9ba4UL, 0xdc8637a0UL, 0x16a7d3b1UL,
0x9fc393b7UL, 0xa7136eebUL, 0xc6bcc63eUL, 0x1a513742UL, 0xef6828bcUL, 0x520365d6UL,
0x2d6a77abUL, 0x3527ed4bUL, 0x821fd216UL, 0x095c6e2eUL, 0xdb92f2fbUL, 0x5eea29cbUL,
0x145892f5UL, 0x91584f7fUL, 0x5483697bUL, 0x2667a8ccUL, 0x85196048UL, 0x8c4baceaUL,
0x833860d4UL, 0x0d23e0f9UL, 0x6c387e8aUL, 0x0ae6d249UL, 0xb284600cUL, 0xd835731dUL,
0xdcb1c647UL, 0xac4c56eaUL, 0x3ebd81b3UL, 0x230eabb0UL, 0x6438bc87UL, 0xf0b5b1faUL,
0x8f5ea2b3UL, 0xfc184642UL, 0x0a036b7aUL, 0x4fb089bdUL, 0x649da589UL, 0xa345415eUL,
0x5c038323UL, 0x3e5d3bb9UL, 0x43d79572UL, 0x7e6dd07cUL, 0x06dfdf1eUL, 0x6c6cc4efUL,
0x7160a539UL, 0x73bfbe70UL, 0x83877605UL, 0x4523ecf1UL};

static const ulong32 S3[256] = {
0x8defc240UL, 0x25fa5d9fUL, 0xeb903dbfUL, 0xe810c907UL, 0x47607fffUL, 0x369fe44bUL,
0x8c1fc644UL, 0xaececa90UL, 0xbeb1f9bfUL, 0xeefbcaeaUL, 0xe8cf1950UL, 0x51df07aeUL,
0x920e8806UL, 0xf0ad0548UL, 0xe13c8d83UL, 0x927010d5UL, 0x11107d9fUL, 0x07647db9UL,
0xb2e3e4d4UL, 0x3d4f285eUL, 0xb9afa820UL, 0xfade82e0UL, 0xa067268bUL, 0x8272792eUL,
0x553fb2c0UL, 0x489ae22bUL, 0xd4ef9794UL, 0x125e3fbcUL, 0x21fffceeUL, 0x825b1bfdUL,
0x9255c5edUL, 0x1257a240UL, 0x4e1a8302UL, 0xbae07fffUL, 0x528246e7UL, 0x8e57140eUL,
0x3373f7bfUL, 0x8c9f8188UL, 0xa6fc4ee8UL, 0xc982b5a5UL, 0xa8c01db7UL, 0x579fc264UL,
0x67094f31UL, 0xf2bd3f5fUL, 0x40fff7c1UL, 0x1fb78dfcUL, 0x8e6bd2c1UL, 0x437be59bUL,
0x99b03dbfUL, 0xb5dbc64bUL, 0x638dc0e6UL, 0x55819d99UL, 0xa197c81cUL, 0x4a012d6eUL,
0xc5884a28UL, 0xccc36f71UL, 0xb843c213UL, 0x6c0743f1UL, 0x8309893cUL, 0x0feddd5fUL,
0x2f7fe850UL, 0xd7c07f7eUL, 0x02507fbfUL, 0x5afb9a04UL, 0xa747d2d0UL, 0x1651192eUL,
0xaf70bf3eUL, 0x58c31380UL, 0x5f98302eUL, 0x727cc3c4UL, 0x0a0fb402UL, 0x0f7fef82UL,
0x8c96fdadUL, 0x5d2c2aaeUL, 0x8ee99a49UL, 0x50da88b8UL, 0x8427f4a0UL, 0x1eac5790UL,
0x796fb449UL, 0x8252dc15UL, 0xefbd7d9bUL, 0xa672597dUL, 0xada840d8UL, 0x45f54504UL,
0xfa5d7403UL, 0xe83ec305UL, 0x4f91751aUL, 0x925669c2UL, 0x23efe941UL, 0xa903f12eUL,
0x60270df2UL, 0x0276e4b6UL, 0x94fd6574UL, 0x927985b2UL, 0x8276dbcbUL, 0x02778176UL,
0xf8af918dUL, 0x4e48f79eUL, 0x8f616ddfUL, 0xe29d840eUL, 0x842f7d83UL, 0x340ce5c8UL,
0x96bbb682UL, 0x93b4b148UL, 0xef303cabUL, 0x984faf28UL, 0x779faf9bUL, 0x92dc560dUL,
0x224d1e20UL, 0x8437aa88UL, 0x7d29dc96UL, 0x2756d3dcUL, 0x8b907ceeUL, 0xb51fd240UL,
0xe7c07ce3UL, 0xe566b4a1UL, 0xc3e9615eUL, 0x3cf8209dUL, 0x6094d1e3UL, 0xcd9ca341UL,
0x5c76460eUL, 0x00ea983bUL, 0xd4d67881UL, 0xfd47572cUL, 0xf76cedd9UL, 0xbda8229cUL,
0x127dadaaUL, 0x438a074eUL, 0x1f97c090UL, 0x081bdb8aUL, 0x93a07ebeUL, 0xb938ca15UL,
0x97b03cffUL, 0x3dc2c0f8UL, 0x8d1ab2ecUL, 0x64380e51UL, 0x68cc7bfbUL, 0xd90f2788UL,
0x12490181UL, 0x5de5ffd4UL, 0xdd7ef86aUL, 0x76a2e214UL, 0xb9a40368UL, 0x925d958fUL,
0x4b39fffaUL, 0xba39aee9UL, 0xa4ffd30bUL, 0xfaf7933bUL, 0x6d498623UL, 0x193cbcfaUL,
0x27627545UL, 0x825cf47aUL, 0x61bd8ba0UL, 0xd11e42d1UL, 0xcead04f4UL, 0x127ea392UL,
0x10428db7UL, 0x8272a972UL, 0x9270c4a8UL, 0x127de50bUL, 0x285ba1c8UL, 0x3c62f44fUL,
0x35c0eaa5UL, 0xe805d231UL, 0x428929fbUL, 0xb4fcdf82UL, 0x4fb66a53UL, 0x0e7dc15bUL,
0x1f081fabUL, 0x108618aeUL, 0xfcfd086dUL, 0xf9ff2889UL, 0x694bcc11UL, 0x236a5caeUL,
0x12deca4dUL, 0x2c3f8cc5UL, 0xd2d02dfeUL, 0xf8ef5896UL, 0xe4cf52daUL, 0x95155b67UL,
0x494a488cUL, 0xb9b6a80cUL, 0x5c8f82bcUL, 0x89d36b45UL, 0x3a609437UL, 0xec00c9a9UL,
0x44715253UL, 0x0a874b49UL, 0xd773bc40UL, 0x7c34671cUL, 0x02717ef6UL, 0x4feb5536UL,
0xa2d02fffUL, 0xd2bf60c4UL, 0xd43f03c0UL, 0x50b4ef6dUL, 0x07478cd1UL, 0x006e1888UL,
0xa2e53f55UL, 0xb9e6d4bcUL, 0xa2048016UL, 0x97573833UL, 0xd7207d67UL, 0xde0f8f3dUL,
0x72f87b33UL, 0xabcc4f33UL, 0x7688c55dUL, 0x7b00a6b0UL, 0x947b0001UL, 0x570075d2UL,
0xf9bb88f8UL, 0x8942019eUL, 0x4264a5ffUL, 0x856302e0UL, 0x72dbd92bUL, 0xee971b69UL,
0x6ea22fdeUL, 0x5f08ae2bUL, 0xaf7a616dUL, 0xe5c98767UL, 0xcf1febd2UL, 0x61efc8c2UL,
0xf1ac2571UL, 0xcc8239c2UL, 0x67214cb8UL, 0xb1e583d1UL, 0xb7dc3e62UL, 0x7f10bdceUL,
0xf90a5c38UL, 0x0ff0443dUL, 0x606e6dc6UL, 0x60543a49UL, 0x5727c148UL, 0x2be98a1dUL,
0x8ab41738UL, 0x20e1be24UL, 0xaf96da0fUL, 0x68458425UL, 0x99833be5UL, 0x600d457dUL,
0x282f9350UL, 0x8334b362UL, 0xd91d1120UL, 0x2b6d8da0UL, 0x642b1e31UL, 0x9c305a00UL,
0x52bce688UL, 0x1b03588aUL, 0xf7baefd5UL, 0x4142ed9cUL, 0xa4315c11UL, 0x83323ec5UL,
0xdfef4636UL, 0xa133c501UL, 0xe9d3531cUL, 0xee353783UL};

static const ulong32 S4[256] = {
0x9db30420UL, 0x1fb6e9deUL, 0xa7be7befUL, 0xd273a298UL, 0x4a4f7bdbUL, 0x64ad8c57UL,
0x85510443UL, 0xfa020ed1UL, 0x7e287affUL, 0xe60fb663UL, 0x095f35a1UL, 0x79ebf120UL,
0xfd059d43UL, 0x6497b7b1UL, 0xf3641f63UL, 0x241e4adfUL, 0x28147f5fUL, 0x4fa2b8cdUL,
0xc9430040UL, 0x0cc32220UL, 0xfdd30b30UL, 0xc0a5374fUL, 0x1d2d00d9UL, 0x24147b15UL,
0xee4d111aUL, 0x0fca5167UL, 0x71ff904cUL, 0x2d195ffeUL, 0x1a05645fUL, 0x0c13fefeUL,
0x081b08caUL, 0x05170121UL, 0x80530100UL, 0xe83e5efeUL, 0xac9af4f8UL, 0x7fe72701UL,
0xd2b8ee5fUL, 0x06df4261UL, 0xbb9e9b8aUL, 0x7293ea25UL, 0xce84ffdfUL, 0xf5718801UL,
0x3dd64b04UL, 0xa26f263bUL, 0x7ed48400UL, 0x547eebe6UL, 0x446d4ca0UL, 0x6cf3d6f5UL,
0x2649abdfUL, 0xaea0c7f5UL, 0x36338cc1UL, 0x503f7e93UL, 0xd3772061UL, 0x11b638e1UL,
0x72500e03UL, 0xf80eb2bbUL, 0xabe0502eUL, 0xec8d77deUL, 0x57971e81UL, 0xe14f6746UL,
0xc9335400UL, 0x6920318fUL, 0x081dbb99UL, 0xffc304a5UL, 0x4d351805UL, 0x7f3d5ce3UL,
0xa6c866c6UL, 0x5d5bcca9UL, 0xdaec6feaUL, 0x9f926f91UL, 0x9f46222fUL, 0x3991467dUL,
0xa5bf6d8eUL, 0x1143c44fUL, 0x43958302UL, 0xd0214eebUL, 0x022083b8UL, 0x3fb6180cUL,
0x18f8931eUL, 0x281658e6UL, 0x26486e3eUL, 0x8bd78a70UL, 0x7477e4c1UL, 0xb506e07cUL,
0xf32d0a25UL, 0x79098b02UL, 0xe4eabb81UL, 0x28123b23UL, 0x69dead38UL, 0x1574ca16UL,
0xdf871b62UL, 0x211c40b7UL, 0xa51a9ef9UL, 0x0014377bUL, 0x041e8ac8UL, 0x09114003UL,
0xbd59e4d2UL, 0xe3d156d5UL, 0x4fe876d5UL, 0x2f91a340UL, 0x557be8deUL, 0x00eae4a7UL,
0x0ce5c2ecUL, 0x4db4bba6UL, 0xe756bdffUL, 0xdd3369acUL, 0xec17b035UL, 0x06572327UL,
0x99afc8b0UL, 0x56c8c391UL, 0x6b65811cUL, 0x5e146119UL, 0x6e85cb75UL, 0xbe07c002UL,
0xc2325577UL, 0x893ff4ecUL, 0x5bbfc92dUL, 0xd0ec3b25UL, 0xb7801ab7UL, 0x8d6d3b24UL,
0x20c763efUL, 0xc366a5fcUL, 0x9c382880UL, 0x0ace3205UL, 0xaac9548aUL, 0xeca1d7c7UL,
0x041afa32UL, 0x1d16625aUL, 0x6701902cUL, 0x9b757a54UL, 0x31d477f7UL, 0x9126b031UL,
0x36cc6fdbUL, 0xc70b8b46UL, 0xd9e66a48UL, 0x56e55a79UL, 0x026a4cebUL, 0x52437effUL,
0x2f8f76b4UL, 0x0df980a5UL, 0x8674cde3UL, 0xedda04ebUL, 0x17a9be04UL, 0x2c18f4dfUL,
0xb7747f9dUL, 0xab2af7b4UL, 0xefc34d20UL, 0x2e096b7cUL, 0x1741a254UL, 0xe5b6a035UL,
0x213d42f6UL, 0x2c1c7c26UL, 0x61c2f50fUL, 0x6552daf9UL, 0xd2c231f8UL, 0x25130f69UL,
0xd8167fa2UL, 0x0418f2c8UL, 0x001a96a6UL, 0x0d1526abUL, 0x63315c21UL, 0x5e0a72ecUL,
0x49bafefdUL, 0x187908d9UL, 0x8d0dbd86UL, 0x311170a7UL, 0x3e9b640cUL, 0xcc3e10d7UL,
0xd5cad3b6UL, 0x0caec388UL, 0xf73001e1UL, 0x6c728affUL, 0x71eae2a1UL, 0x1f9af36eUL,
0xcfcbd12fUL, 0xc1de8417UL, 0xac07be6bUL, 0xcb44a1d8UL, 0x8b9b0f56UL, 0x013988c3UL,
0xb1c52fcaUL, 0xb4be31cdUL, 0xd8782806UL, 0x12a3a4e2UL, 0x6f7de532UL, 0x58fd7eb6UL,
0xd01ee900UL, 0x24adffc2UL, 0xf4990fc5UL, 0x9711aac5UL, 0x001d7b95UL, 0x82e5e7d2UL,
0x109873f6UL, 0x00613096UL, 0xc32d9521UL, 0xada121ffUL, 0x29908415UL, 0x7fbb977fUL,
0xaf9eb3dbUL, 0x29c9ed2aUL, 0x5ce2a465UL, 0xa730f32cUL, 0xd0aa3fe8UL, 0x8a5cc091UL,
0xd49e2ce7UL, 0x0ce454a9UL, 0xd60acd86UL, 0x015f1919UL, 0x77079103UL, 0xdea03af6UL,
0x78a8565eUL, 0xdee356dfUL, 0x21f05cbeUL, 0x8b75e387UL, 0xb3c50651UL, 0xb8a5c3efUL,
0xd8eeb6d2UL, 0xe523be77UL, 0xc2154529UL, 0x2f69efdfUL, 0xafe67afbUL, 0xf470c4b2UL,
0xf3e0eb5bUL, 0xd6cc9876UL, 0x39e4460cUL, 0x1fda8538UL, 0x1987832fUL, 0xca007367UL,
0xa99144f8UL, 0x296b299eUL, 0x492fc295UL, 0x9266beabUL, 0xb5676e69UL, 0x9bd3dddaUL,
0xdf7e052fUL, 0xdb25701cUL, 0x1b5e51eeUL, 0xf65324e6UL, 0x6afce36cUL, 0x0316cc04UL,
0x8644213eUL, 0xb7dc59d0UL, 0x7965291fUL, 0xccd6fd43UL, 0x41823979UL, 0x932bcdf6UL,
0xb657c34dUL, 0x4edfd282UL, 0x7ae5290cUL, 0x3cb9536bUL, 0x851e20feUL, 0x9833557eUL,
0x13ecf0b0UL, 0xd3ffb372UL, 0x3f85c5c1UL, 0x0aef7ed2UL};

static const ulong32 S5[256] = {
0x7ec90c04UL, 0x2c6e74b9UL, 0x9b0e66dfUL, 0xa6337911UL, 0xb86a7fffUL, 0x1dd358f5UL,
0x44dd9d44UL, 0x1731167fUL, 0x08fbf1faUL, 0xe7f511ccUL, 0xd2051b00UL, 0x735aba00UL,
0x2ab722d8UL, 0x386381cbUL, 0xacf6243aUL, 0x69befd7aUL, 0xe6a2e77fUL, 0xf0c720cdUL,
0xc4494816UL, 0xccf5c180UL, 0x38851640UL, 0x15b0a848UL, 0xe68b18cbUL, 0x4caadeffUL,
0x5f480a01UL, 0x0412b2aaUL, 0x259814fcUL, 0x41d0efe2UL, 0x4e40b48dUL, 0x248eb6fbUL,
0x8dba1cfeUL, 0x41a99b02UL, 0x1a550a04UL, 0xba8f65cbUL, 0x7251f4e7UL, 0x95a51725UL,
0xc106ecd7UL, 0x97a5980aUL, 0xc539b9aaUL, 0x4d79fe6aUL, 0xf2f3f763UL, 0x68af8040UL,
0xed0c9e56UL, 0x11b4958bUL, 0xe1eb5a88UL, 0x8709e6b0UL, 0xd7e07156UL, 0x4e29fea7UL,
0x6366e52dUL, 0x02d1c000UL, 0xc4ac8e05UL, 0x9377f571UL, 0x0c05372aUL, 0x578535f2UL,
0x2261be02UL, 0xd642a0c9UL, 0xdf13a280UL, 0x74b55bd2UL, 0x682199c0UL, 0xd421e5ecUL,
0x53fb3ce8UL, 0xc8adedb3UL, 0x28a87fc9UL, 0x3d959981UL, 0x5c1ff900UL, 0xfe38d399UL,
0x0c4eff0bUL, 0x062407eaUL, 0xaa2f4fb1UL, 0x4fb96976UL, 0x90c79505UL, 0xb0a8a774UL,
0xef55a1ffUL, 0xe59ca2c2UL, 0xa6b62d27UL, 0xe66a4263UL, 0xdf65001fUL, 0x0ec50966UL,
0xdfdd55bcUL, 0x29de0655UL, 0x911e739aUL, 0x17af8975UL, 0x32c7911cUL, 0x89f89468UL,
0x0d01e980UL, 0x524755f4UL, 0x03b63cc9UL, 0x0cc844b2UL, 0xbcf3f0aaUL, 0x87ac36e9UL,
0xe53a7426UL, 0x01b3d82bUL, 0x1a9e7449UL, 0x64ee2d7eUL, 0xcddbb1daUL, 0x01c94910UL,
0xb868bf80UL, 0x0d26f3fdUL, 0x9342ede7UL, 0x04a5c284UL, 0x636737b6UL, 0x50f5b616UL,
0xf24766e3UL, 0x8eca36c1UL, 0x136e05dbUL, 0xfef18391UL, 0xfb887a37UL, 0xd6e7f7d4UL,
0xc7fb7dc9UL, 0x3063fcdfUL, 0xb6f589deUL, 0xec2941daUL, 0x26e46695UL, 0xb7566419UL,
0xf654efc5UL, 0xd08d58b7UL, 0x48925401UL, 0xc1bacb7fUL, 0xe5ff550fUL, 0xb6083049UL,
0x5bb5d0e8UL, 0x87d72e5aUL, 0xab6a6ee1UL, 0x223a66ceUL, 0xc62bf3cdUL, 0x9e0885f9UL,
0x68cb3e47UL, 0x086c010fUL, 0xa21de820UL, 0xd18b69deUL, 0xf3f65777UL, 0xfa02c3f6UL,
0x407edac3UL, 0xcbb3d550UL, 0x1793084dUL, 0xb0d70ebaUL, 0x0ab378d5UL, 0xd951fb0cUL,
0xded7da56UL, 0x4124bbe4UL, 0x94ca0b56UL, 0x0f5755d1UL, 0xe0e1e56eUL, 0x6184b5beUL,
0x580a249fUL, 0x94f74bc0UL, 0xe327888eUL, 0x9f7b5561UL, 0xc3dc0280UL, 0x05687715UL,
0x646c6bd7UL, 0x44904db3UL, 0x66b4f0a3UL, 0xc0f1648aUL, 0x697ed5afUL, 0x49e92ff6UL,
0x309e374fUL, 0x2cb6356aUL, 0x85808573UL, 0x4991f840UL, 0x76f0ae02UL, 0x083be84dUL,
0x28421c9aUL, 0x44489406UL, 0x736e4cb8UL, 0xc1092910UL, 0x8bc95fc6UL, 0x7d869cf4UL,
0x134f616fUL, 0x2e77118dUL, 0xb31b2be1UL, 0xaa90b472UL, 0x3ca5d717UL, 0x7d161bbaUL,
0x9cad9010UL, 0xaf462ba2UL, 0x9fe459d2UL, 0x45d34559UL, 0xd9f2da13UL, 0xdbc65487UL,
0xf3e4f94eUL, 0x176d486fUL, 0x097c13eaUL, 0x631da5c7UL, 0x445f7382UL, 0x175683f4UL,
0xcdc66a97UL, 0x70be0288UL, 0xb3cdcf72UL, 0x6e5dd2f3UL, 0x20936079UL, 0x459b80a5UL,
0xbe60e2dbUL, 0xa9c23101UL, 0xeba5315cUL, 0x224e42f2UL, 0x1c5c1572UL, 0xf6721b2cUL,
0x1ad2fff3UL, 0x8c25404eUL, 0x324ed72fUL, 0x4067b7fdUL, 0x0523138eUL, 0x5ca3bc78UL,
0xdc0fd66eUL, 0x75922283UL, 0x784d6b17UL, 0x58ebb16eUL, 0x44094f85UL, 0x3f481d87UL,
0xfcfeae7bUL, 0x77b5ff76UL, 0x8c2302bfUL, 0xaaf47556UL, 0x5f46b02aUL, 0x2b092801UL,
0x3d38f5f7UL, 0x0ca81f36UL, 0x52af4a8aUL, 0x66d5e7c0UL, 0xdf3b0874UL, 0x95055110UL,
0x1b5ad7a8UL, 0xf61ed5adUL, 0x6cf6e479UL, 0x20758184UL, 0xd0cefa65UL, 0x88f7be58UL,
0x4a046826UL, 0x0ff6f8f3UL, 0xa09c7f70UL, 0x5346aba0UL, 0x5ce96c28UL, 0xe176eda3UL,
0x6bac307fUL, 0x376829d2UL, 0x85360fa9UL, 0x17e3fe2aUL, 0x24b79767UL, 0xf5a96b20UL,
0xd6cd2595UL, 0x68ff1ebfUL, 0x7555442cUL, 0xf19f06beUL, 0xf9e0659aUL, 0xeeb9491dUL,
0x34010718UL, 0xbb30cab8UL, 0xe822fe15UL, 0x88570983UL, 0x750e6249UL, 0xda627e55UL,
0x5e76ffa8UL, 0xb1534546UL, 0x6d47de08UL, 0xefe9e7d4UL};

static const ulong32 S6[256] = {
0xf6fa8f9dUL, 0x2cac6ce1UL, 0x4ca34867UL, 0xe2337f7cUL, 0x95db08e7UL, 0x016843b4UL,
0xeced5cbcUL, 0x325553acUL, 0xbf9f0960UL, 0xdfa1e2edUL, 0x83f0579dUL, 0x63ed86b9UL,
0x1ab6a6b8UL, 0xde5ebe39UL, 0xf38ff732UL, 0x8989b138UL, 0x33f14961UL, 0xc01937bdUL,
0xf506c6daUL, 0xe4625e7eUL, 0xa308ea99UL, 0x4e23e33cUL, 0x79cbd7ccUL, 0x48a14367UL,
0xa3149619UL, 0xfec94bd5UL, 0xa114174aUL, 0xeaa01866UL, 0xa084db2dUL, 0x09a8486fUL,
0xa888614aUL, 0x2900af98UL, 0x01665991UL, 0xe1992863UL, 0xc8f30c60UL, 0x2e78ef3cUL,
0xd0d51932UL, 0xcf0fec14UL, 0xf7ca07d2UL, 0xd0a82072UL, 0xfd41197eUL, 0x9305a6b0UL,
0xe86be3daUL, 0x74bed3cdUL, 0x372da53cUL, 0x4c7f4448UL, 0xdab5d440UL, 0x6dba0ec3UL,
0x083919a7UL, 0x9fbaeed9UL, 0x49dbcfb0UL, 0x4e670c53UL, 0x5c3d9c01UL, 0x64bdb941UL,
0x2c0e636aUL, 0xba7dd9cdUL, 0xea6f7388UL, 0xe70bc762UL, 0x35f29adbUL, 0x5c4cdd8dUL,
0xf0d48d8cUL, 0xb88153e2UL, 0x08a19866UL, 0x1ae2eac8UL, 0x284caf89UL, 0xaa928223UL,
0x9334be53UL, 0x3b3a21bfUL, 0x16434be3UL, 0x9aea3906UL, 0xefe8c36eUL, 0xf890cdd9UL,
0x80226daeUL, 0xc340a4a3UL, 0xdf7e9c09UL, 0xa694a807UL, 0x5b7c5eccUL, 0x221db3a6UL,
0x9a69a02fUL, 0x68818a54UL, 0xceb2296fUL, 0x53c0843aUL, 0xfe893655UL, 0x25bfe68aUL,
0xb4628abcUL, 0xcf222ebfUL, 0x25ac6f48UL, 0xa9a99387UL, 0x53bddb65UL, 0xe76ffbe7UL,
0xe967fd78UL, 0x0ba93563UL, 0x8e342bc1UL, 0xe8a11be9UL, 0x4980740dUL, 0xc8087dfcUL,
0x8de4bf99UL, 0xa11101a0UL, 0x7fd37975UL, 0xda5a26c0UL, 0xe81f994fUL, 0x9528cd89UL,
0xfd339fedUL, 0xb87834bfUL, 0x5f04456dUL, 0x22258698UL, 0xc9c4c83bUL, 0x2dc156beUL,
0x4f628daaUL, 0x57f55ec5UL, 0xe2220abeUL, 0xd2916ebfUL, 0x4ec75b95UL, 0x24f2c3c0UL,
0x42d15d99UL, 0xcd0d7fa0UL, 0x7b6e27ffUL, 0xa8dc8af0UL, 0x7345c106UL, 0xf41e232fUL,
0x35162386UL, 0xe6ea8926UL, 0x3333b094UL, 0x157ec6f2UL, 0x372b74afUL, 0x692573e4UL,
0xe9a9d848UL, 0xf3160289UL, 0x3a62ef1dUL, 0xa787e238UL, 0xf3a5f676UL, 0x74364853UL,
0x20951063UL, 0x4576698dUL, 0xb6fad407UL, 0x592af950UL, 0x36f73523UL, 0x4cfb6e87UL,
0x7da4cec0UL, 0x6c152daaUL, 0xcb0396a8UL, 0xc50dfe5dUL, 0xfcd707abUL, 0x0921c42fUL,
0x89dff0bbUL, 0x5fe2be78UL, 0x448f4f33UL, 0x754613c9UL, 0x2b05d08dUL, 0x48b9d585UL,
0xdc049441UL, 0xc8098f9bUL, 0x7dede786UL, 0xc39a3373UL, 0x42410005UL, 0x6a091751UL,
0x0ef3c8a6UL, 0x890072d6UL, 0x28207682UL, 0xa9a9f7beUL, 0xbf32679dUL, 0xd45b5b75UL,
0xb353fd00UL, 0xcbb0e358UL, 0x830f220aUL, 0x1f8fb214UL, 0xd372cf08UL, 0xcc3c4a13UL,
0x8cf63166UL, 0x061c87beUL, 0x88c98f88UL, 0x6062e397UL, 0x47cf8e7aUL, 0xb6c85283UL,
0x3cc2acfbUL, 0x3fc06976UL, 0x4e8f0252UL, 0x64d8314dUL, 0xda3870e3UL, 0x1e665459UL,
0xc10908f0UL, 0x513021a5UL, 0x6c5b68b7UL, 0x822f8aa0UL, 0x3007cd3eUL, 0x74719eefUL,
0xdc872681UL, 0x073340d4UL, 0x7e432fd9UL, 0x0c5ec241UL, 0x8809286cUL, 0xf592d891UL,
0x08a930f6UL, 0x957ef305UL, 0xb7fbffbdUL, 0xc266e96fUL, 0x6fe4ac98UL, 0xb173ecc0UL,
0xbc60b42aUL, 0x953498daUL, 0xfba1ae12UL, 0x2d4bd736UL, 0x0f25faabUL, 0xa4f3fcebUL,
0xe2969123UL, 0x257f0c3dUL, 0x9348af49UL, 0x361400bcUL, 0xe8816f4aUL, 0x3814f200UL,
0xa3f94043UL, 0x9c7a54c2UL, 0xbc704f57UL, 0xda41e7f9UL, 0xc25ad33aUL, 0x54f4a084UL,
0xb17f5505UL, 0x59357cbeUL, 0xedbd15c8UL, 0x7f97c5abUL, 0xba5ac7b5UL, 0xb6f6deafUL,
0x3a479c3aUL, 0x5302da25UL, 0x653d7e6aUL, 0x54268d49UL, 0x51a477eaUL, 0x5017d55bUL,
0xd7d25d88UL, 0x44136c76UL, 0x0404a8c8UL, 0xb8e5a121UL, 0xb81a928aUL, 0x60ed5869UL,
0x97c55b96UL, 0xeaec991bUL, 0x29935913UL, 0x01fdb7f1UL, 0x088e8dfaUL, 0x9ab6f6f5UL,
0x3b4cbf9fUL, 0x4a5de3abUL, 0xe6051d35UL, 0xa0e1d855UL, 0xd36b4cf1UL, 0xf544edebUL,
0xb0e93524UL, 0xbebb8fbdUL, 0xa2d762cfUL, 0x49c92f54UL, 0x38b5f331UL, 0x7128a454UL,
0x48392905UL, 0xa65b1db8UL, 0x851c97bdUL, 0xd675cf2fUL};

static const ulong32 S7[256] = {
0x85e04019UL, 0x332bf567UL, 0x662dbfffUL, 0xcfc65693UL, 0x2a8d7f6fUL, 0xab9bc912UL,
0xde6008a1UL, 0x2028da1fUL, 0x0227bce7UL, 0x4d642916UL, 0x18fac300UL, 0x50f18b82UL,
0x2cb2cb11UL, 0xb232e75cUL, 0x4b3695f2UL, 0xb28707deUL, 0xa05fbcf6UL, 0xcd4181e9UL,
0xe150210cUL, 0xe24ef1bdUL, 0xb168c381UL, 0xfde4e789UL, 0x5c79b0d8UL, 0x1e8bfd43UL,
0x4d495001UL, 0x38be4341UL, 0x913cee1dUL, 0x92a79c3fUL, 0x089766beUL, 0xbaeeadf4UL,
0x1286becfUL, 0xb6eacb19UL, 0x2660c200UL, 0x7565bde4UL, 0x64241f7aUL, 0x8248dca9UL,
0xc3b3ad66UL, 0x28136086UL, 0x0bd8dfa8UL, 0x356d1cf2UL, 0x107789beUL, 0xb3b2e9ceUL,
0x0502aa8fUL, 0x0bc0351eUL, 0x166bf52aUL, 0xeb12ff82UL, 0xe3486911UL, 0xd34d7516UL,
0x4e7b3affUL, 0x5f43671bUL, 0x9cf6e037UL, 0x4981ac83UL, 0x334266ceUL, 0x8c9341b7UL,
0xd0d854c0UL, 0xcb3a6c88UL, 0x47bc2829UL, 0x4725ba37UL, 0xa66ad22bUL, 0x7ad61f1eUL,
0x0c5cbafaUL, 0x4437f107UL, 0xb6e79962UL, 0x42d2d816UL, 0x0a961288UL, 0xe1a5c06eUL,
0x13749e67UL, 0x72fc081aUL, 0xb1d139f7UL, 0xf9583745UL, 0xcf19df58UL, 0xbec3f756UL,
0xc06eba30UL, 0x07211b24UL, 0x45c28829UL, 0xc95e317fUL, 0xbc8ec511UL, 0x38bc46e9UL,
0xc6e6fa14UL, 0xbae8584aUL, 0xad4ebc46UL, 0x468f508bUL, 0x7829435fUL, 0xf124183bUL,
0x821dba9fUL, 0xaff60ff4UL, 0xea2c4e6dUL, 0x16e39264UL, 0x92544a8bUL, 0x009b4fc3UL,
0xaba68cedUL, 0x9ac96f78UL, 0x06a5b79aUL, 0xb2856e6eUL, 0x1aec3ca9UL, 0xbe838688UL,
0x0e0804e9UL, 0x55f1be56UL, 0xe7e5363bUL, 0xb3a1f25dUL, 0xf7debb85UL, 0x61fe033cUL,
0x16746233UL, 0x3c034c28UL, 0xda6d0c74UL, 0x79aac56cUL, 0x3ce4e1adUL, 0x51f0c802UL,
0x98f8f35aUL, 0x1626a49fUL, 0xeed82b29UL, 0x1d382fe3UL, 0x0c4fb99aUL, 0xbb325778UL,
0x3ec6d97bUL, 0x6e77a6a9UL, 0xcb658b5cUL, 0xd45230c7UL, 0x2bd1408bUL, 0x60c03eb7UL,
0xb9068d78UL, 0xa33754f4UL, 0xf430c87dUL, 0xc8a71302UL, 0xb96d8c32UL, 0xebd4e7beUL,
0xbe8b9d2dUL, 0x7979fb06UL, 0xe7225308UL, 0x8b75cf77UL, 0x11ef8da4UL, 0xe083c858UL,
0x8d6b786fUL, 0x5a6317a6UL, 0xfa5cf7a0UL, 0x5dda0033UL, 0xf28ebfb0UL, 0xf5b9c310UL,
0xa0eac280UL, 0x08b9767aUL, 0xa3d9d2b0UL, 0x79d34217UL, 0x021a718dUL, 0x9ac6336aUL,
0x2711fd60UL, 0x438050e3UL, 0x069908a8UL, 0x3d7fedc4UL, 0x826d2befUL, 0x4eeb8476UL,
0x488dcf25UL, 0x36c9d566UL, 0x28e74e41UL, 0xc2610acaUL, 0x3d49a9cfUL, 0xbae3b9dfUL,
0xb65f8de6UL, 0x92aeaf64UL, 0x3ac7d5e6UL, 0x9ea80509UL, 0xf22b017dUL, 0xa4173f70UL,
0xdd1e16c3UL, 0x15e0d7f9UL, 0x50b1b887UL, 0x2b9f4fd5UL, 0x625aba82UL, 0x6a017962UL,
0x2ec01b9cUL, 0x15488aa9UL, 0xd716e740UL, 0x40055a2cUL, 0x93d29a22UL, 0xe32dbf9aUL,
0x058745b9UL, 0x3453dc1eUL, 0xd699296eUL, 0x496cff6fUL, 0x1c9f4986UL, 0xdfe2ed07UL,
0xb87242d1UL, 0x19de7eaeUL, 0x053e561aUL, 0x15ad6f8cUL, 0x66626c1cUL, 0x7154c24cUL,
0xea082b2aUL, 0x93eb2939UL, 0x17dcb0f0UL, 0x58d4f2aeUL, 0x9ea294fbUL, 0x52cf564cUL,
0x9883fe66UL, 0x2ec40581UL, 0x763953c3UL, 0x01d6692eUL, 0xd3a0c108UL, 0xa1e7160eUL,
0xe4f2dfa6UL, 0x693ed285UL, 0x74904698UL, 0x4c2b0eddUL, 0x4f757656UL, 0x5d393378UL,
0xa132234fUL, 0x3d321c5dUL, 0xc3f5e194UL, 0x4b269301UL, 0xc79f022fUL, 0x3c997e7eUL,
0x5e4f9504UL, 0x3ffafbbdUL, 0x76f7ad0eUL, 0x296693f4UL, 0x3d1fce6fUL, 0xc61e45beUL,
0xd3b5ab34UL, 0xf72bf9b7UL, 0x1b0434c0UL, 0x4e72b567UL, 0x5592a33dUL, 0xb5229301UL,
0xcfd2a87fUL, 0x60aeb767UL, 0x1814386bUL, 0x30bcc33dUL, 0x38a0c07dUL, 0xfd1606f2UL,
0xc363519bUL, 0x589dd390UL, 0x5479f8e6UL, 0x1cb8d647UL, 0x97fd61a9UL, 0xea7759f4UL,
0x2d57539dUL, 0x569a58cfUL, 0xe84e63adUL, 0x462e1b78UL, 0x6580f87eUL, 0xf3817914UL,
0x91da55f4UL, 0x40a230f3UL, 0xd1988f35UL, 0xb6e318d2UL, 0x3ffa50bcUL, 0x3d40f021UL,
0xc3c0bdaeUL, 0x4958c24cUL, 0x518f36b2UL, 0x84b1d370UL, 0x0fedce83UL, 0x878ddadaUL,
0xf2a279c7UL, 0x94e01be8UL, 0x90716f4bUL, 0x954b8aa3UL};

static const ulong32 S8[256] = {
0xe216300dUL, 0xbbddfffcUL, 0xa7ebdabdUL, 0x35648095UL, 0x7789f8b7UL, 0xe6c1121bUL,
0x0e241600UL, 0x052ce8b5UL, 0x11a9cfb0UL, 0xe5952f11UL, 0xece7990aUL, 0x9386d174UL,
0x2a42931cUL, 0x76e38111UL, 0xb12def3aUL, 0x37ddddfcUL, 0xde9adeb1UL, 0x0a0cc32cUL,
0xbe197029UL, 0x84a00940UL, 0xbb243a0fUL, 0xb4d137cfUL, 0xb44e79f0UL, 0x049eedfdUL,
0x0b15a15dUL, 0x480d3168UL, 0x8bbbde5aUL, 0x669ded42UL, 0xc7ece831UL, 0x3f8f95e7UL,
0x72df191bUL, 0x7580330dUL, 0x94074251UL, 0x5c7dcdfaUL, 0xabbe6d63UL, 0xaa402164UL,
0xb301d40aUL, 0x02e7d1caUL, 0x53571daeUL, 0x7a3182a2UL, 0x12a8ddecUL, 0xfdaa335dUL,
0x176f43e8UL, 0x71fb46d4UL, 0x38129022UL, 0xce949ad4UL, 0xb84769adUL, 0x965bd862UL,
0x82f3d055UL, 0x66fb9767UL, 0x15b80b4eUL, 0x1d5b47a0UL, 0x4cfde06fUL, 0xc28ec4b8UL,
0x57e8726eUL, 0x647a78fcUL, 0x99865d44UL, 0x608bd593UL, 0x6c200e03UL, 0x39dc5ff6UL,
0x5d0b00a3UL, 0xae63aff2UL, 0x7e8bd632UL, 0x70108c0cUL, 0xbbd35049UL, 0x2998df04UL,
0x980cf42aUL, 0x9b6df491UL, 0x9e7edd53UL, 0x06918548UL, 0x58cb7e07UL, 0x3b74ef2eUL,
0x522fffb1UL, 0xd24708ccUL, 0x1c7e27cdUL, 0xa4eb215bUL, 0x3cf1d2e2UL, 0x19b47a38UL,
0x424f7618UL, 0x35856039UL, 0x9d17dee7UL, 0x27eb35e6UL, 0xc9aff67bUL, 0x36baf5b8UL,
0x09c467cdUL, 0xc18910b1UL, 0xe11dbf7bUL, 0x06cd1af8UL, 0x7170c608UL, 0x2d5e3354UL,
0xd4de495aUL, 0x64c6d006UL, 0xbcc0c62cUL, 0x3dd00db3UL, 0x708f8f34UL, 0x77d51b42UL,
0x264f620fUL, 0x24b8d2bfUL, 0x15c1b79eUL, 0x46a52564UL, 0xf8d7e54eUL, 0x3e378160UL,
0x7895cda5UL, 0x859c15a5UL, 0xe6459788UL, 0xc37bc75fUL, 0xdb07ba0cUL, 0x0676a3abUL,
0x7f229b1eUL, 0x31842e7bUL, 0x24259fd7UL, 0xf8bef472UL, 0x835ffcb8UL, 0x6df4c1f2UL,
0x96f5b195UL, 0xfd0af0fcUL, 0xb0fe134cUL, 0xe2506d3dUL, 0x4f9b12eaUL, 0xf215f225UL,
0xa223736fUL, 0x9fb4c428UL, 0x25d04979UL, 0x34c713f8UL, 0xc4618187UL, 0xea7a6e98UL,
0x7cd16efcUL, 0x1436876cUL, 0xf1544107UL, 0xbedeee14UL, 0x56e9af27UL, 0xa04aa441UL,
0x3cf7c899UL, 0x92ecbae6UL, 0xdd67016dUL, 0x151682ebUL, 0xa842eedfUL, 0xfdba60b4UL,
0xf1907b75UL, 0x20e3030fUL, 0x24d8c29eUL, 0xe139673bUL, 0xefa63fb8UL, 0x71873054UL,
0xb6f2cf3bUL, 0x9f326442UL, 0xcb15a4ccUL, 0xb01a4504UL, 0xf1e47d8dUL, 0x844a1be5UL,
0xbae7dfdcUL, 0x42cbda70UL, 0xcd7dae0aUL, 0x57e85b7aUL, 0xd53f5af6UL, 0x20cf4d8cUL,
0xcea4d428UL, 0x79d130a4UL, 0x3486ebfbUL, 0x33d3cddcUL, 0x77853b53UL, 0x37effcb5UL,
0xc5068778UL, 0xe580b3e6UL, 0x4e68b8f4UL, 0xc5c8b37eUL, 0x0d809ea2UL, 0x398feb7cUL,
0x132a4f94UL, 0x43b7950eUL, 0x2fee7d1cUL, 0x223613bdUL, 0xdd06caa2UL, 0x37df932bUL,
0xc4248289UL, 0xacf3ebc3UL, 0x5715f6b7UL, 0xef3478ddUL, 0xf267616fUL, 0xc148cbe4UL,
0x9052815eUL, 0x5e410fabUL, 0xb48a2465UL, 0x2eda7fa4UL, 0xe87b40e4UL, 0xe98ea084UL,
0x5889e9e1UL, 0xefd390fcUL, 0xdd07d35bUL, 0xdb485694UL, 0x38d7e5b2UL, 0x57720101UL,
0x730edebcUL, 0x5b643113UL, 0x94917e4fUL, 0x503c2fbaUL, 0x646f1282UL, 0x7523d24aUL,
0xe0779695UL, 0xf9c17a8fUL, 0x7a5b2121UL, 0xd187b896UL, 0x29263a4dUL, 0xba510cdfUL,
0x81f47c9fUL, 0xad1163edUL, 0xea7b5965UL, 0x1a00726eUL, 0x11403092UL, 0x00da6d77UL,
0x4a0cdd61UL, 0xad1f4603UL, 0x605bdfb0UL, 0x9eedc364UL, 0x22ebe6a8UL, 0xcee7d28aUL,
0xa0e736a0UL, 0x5564a6b9UL, 0x10853209UL, 0xc7eb8f37UL, 0x2de705caUL, 0x8951570fUL,
0xdf09822bUL, 0xbd691a6cUL, 0xaa12e4f2UL, 0x87451c0fUL, 0xe0f6a27aUL, 0x3ada4819UL,
0x4cf1764fUL, 0x0d771c2bUL, 0x67cdb156UL, 0x350d8384UL, 0x5938fa0fUL, 0x42399ef3UL,
0x36997b07UL, 0x0e84093dUL, 0x4aa93e61UL, 0x8360d87bUL, 0x1fa98b0cUL, 0x1149382cUL,
0xe97625a5UL, 0x0614d1b7UL, 0x0e25244bUL, 0x0c768347UL, 0x589e8d82UL, 0x0d2059d1UL,
0xa466bb1eUL, 0xf8da0a82UL, 0x04f19130UL, 0xba6e4ec0UL, 0x99265164UL, 0x1ee7230dUL,
0x50b2ad80UL, 0xeaee6801UL, 0x8db2a283UL, 0xea8bf59eUL};

/* returns the i'th byte of a variable */
#ifdef _MSC_VER
   #define GB(x, i) ((unsigned char)((x[(15-i)>>2])>>(unsigned)(8*((15-i)&3))))
#else
   #define GB(x, i) (((x[(15-i)>>2])>>(unsigned)(8*((15-i)&3)))&255)
#endif

 /**
    Initialize the LTC_CAST5 block cipher
    @param key The symmetric key you wish to pass
    @param keylen The key length in bytes
    @param num_rounds The number of rounds desired (0 for default)
    @param skey The key in as scheduled by this function.
    @return CRYPT_OK if successful
 */
#ifdef LTC_CLEAN_STACK
static int _cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
#else
int cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
#endif
{
   ulong32 x[4], z[4];
   unsigned char buf[16];
   int y, i;

   LTC_ARGCHK(key != NULL);
   LTC_ARGCHK(skey != NULL);

   if (num_rounds != 12 && num_rounds != 16 && num_rounds != 0) {
      return CRYPT_INVALID_ROUNDS;
   }

   if (num_rounds == 12 && keylen > 10) {
      return CRYPT_INVALID_ROUNDS;
   }

   if (keylen < 5 || keylen > 16) {
      return CRYPT_INVALID_KEYSIZE;
   }

   /* extend the key as required */
   zeromem(buf, sizeof(buf));
   XMEMCPY(buf, key, (size_t)keylen);

   /* load and start the awful looking network */
   for (y = 0; y < 4; y++) {
       LOAD32H(x[3-y],buf+4*y);
   }

   for (i = y = 0; y < 2; y++) {
        z[3] = x[3] ^ S5[GB(x, 0xD)] ^ S6[GB(x, 0xF)] ^ S7[GB(x, 0xC)] ^ S8[GB(x, 0xE)] ^ S7[GB(x, 0x8)];
        z[2] = x[1] ^ S5[GB(z, 0x0)] ^ S6[GB(z, 0x2)] ^ S7[GB(z, 0x1)] ^ S8[GB(z, 0x3)] ^ S8[GB(x, 0xA)];
        z[1] = x[0] ^ S5[GB(z, 0x7)] ^ S6[GB(z, 0x6)] ^ S7[GB(z, 0x5)] ^ S8[GB(z, 0x4)] ^ S5[GB(x, 0x9)];
        z[0] = x[2] ^ S5[GB(z, 0xA)] ^ S6[GB(z, 0x9)] ^ S7[GB(z, 0xb)] ^ S8[GB(z, 0x8)] ^ S6[GB(x, 0xB)];
        skey->cast5.K[i++] = S5[GB(z, 0x8)] ^ S6[GB(z, 0x9)] ^ S7[GB(z, 0x7)] ^ S8[GB(z, 0x6)] ^ S5[GB(z, 0x2)];
        skey->cast5.K[i++] = S5[GB(z, 0xA)] ^ S6[GB(z, 0xB)] ^ S7[GB(z, 0x5)] ^ S8[GB(z, 0x4)] ^ S6[GB(z, 0x6)];
        skey->cast5.K[i++] = S5[GB(z, 0xC)] ^ S6[GB(z, 0xd)] ^ S7[GB(z, 0x3)] ^ S8[GB(z, 0x2)] ^ S7[GB(z, 0x9)];
        skey->cast5.K[i++] = S5[GB(z, 0xE)] ^ S6[GB(z, 0xF)] ^ S7[GB(z, 0x1)] ^ S8[GB(z, 0x0)] ^ S8[GB(z, 0xc)];

        x[3] = z[1] ^ S5[GB(z, 0x5)] ^ S6[GB(z, 0x7)] ^ S7[GB(z, 0x4)] ^ S8[GB(z, 0x6)] ^ S7[GB(z, 0x0)];
        x[2] = z[3] ^ S5[GB(x, 0x0)] ^ S6[GB(x, 0x2)] ^ S7[GB(x, 0x1)] ^ S8[GB(x, 0x3)] ^ S8[GB(z, 0x2)];
        x[1] = z[2] ^ S5[GB(x, 0x7)] ^ S6[GB(x, 0x6)] ^ S7[GB(x, 0x5)] ^ S8[GB(x, 0x4)] ^ S5[GB(z, 0x1)];
        x[0] = z[0] ^ S5[GB(x, 0xA)] ^ S6[GB(x, 0x9)] ^ S7[GB(x, 0xb)] ^ S8[GB(x, 0x8)] ^ S6[GB(z, 0x3)];
        skey->cast5.K[i++] = S5[GB(x, 0x3)] ^ S6[GB(x, 0x2)] ^ S7[GB(x, 0xc)] ^ S8[GB(x, 0xd)] ^ S5[GB(x, 0x8)];
        skey->cast5.K[i++] = S5[GB(x, 0x1)] ^ S6[GB(x, 0x0)] ^ S7[GB(x, 0xe)] ^ S8[GB(x, 0xf)] ^ S6[GB(x, 0xd)];
        skey->cast5.K[i++] = S5[GB(x, 0x7)] ^ S6[GB(x, 0x6)] ^ S7[GB(x, 0x8)] ^ S8[GB(x, 0x9)] ^ S7[GB(x, 0x3)];
        skey->cast5.K[i++] = S5[GB(x, 0x5)] ^ S6[GB(x, 0x4)] ^ S7[GB(x, 0xa)] ^ S8[GB(x, 0xb)] ^ S8[GB(x, 0x7)];

        /* second half */
        z[3] = x[3] ^ S5[GB(x, 0xD)] ^ S6[GB(x, 0xF)] ^ S7[GB(x, 0xC)] ^ S8[GB(x, 0xE)] ^ S7[GB(x, 0x8)];
        z[2] = x[1] ^ S5[GB(z, 0x0)] ^ S6[GB(z, 0x2)] ^ S7[GB(z, 0x1)] ^ S8[GB(z, 0x3)] ^ S8[GB(x, 0xA)];
        z[1] = x[0] ^ S5[GB(z, 0x7)] ^ S6[GB(z, 0x6)] ^ S7[GB(z, 0x5)] ^ S8[GB(z, 0x4)] ^ S5[GB(x, 0x9)];
        z[0] = x[2] ^ S5[GB(z, 0xA)] ^ S6[GB(z, 0x9)] ^ S7[GB(z, 0xb)] ^ S8[GB(z, 0x8)] ^ S6[GB(x, 0xB)];
        skey->cast5.K[i++] = S5[GB(z, 0x3)] ^ S6[GB(z, 0x2)] ^ S7[GB(z, 0xc)] ^ S8[GB(z, 0xd)] ^ S5[GB(z, 0x9)];
        skey->cast5.K[i++] = S5[GB(z, 0x1)] ^ S6[GB(z, 0x0)] ^ S7[GB(z, 0xe)] ^ S8[GB(z, 0xf)] ^ S6[GB(z, 0xc)];
        skey->cast5.K[i++] = S5[GB(z, 0x7)] ^ S6[GB(z, 0x6)] ^ S7[GB(z, 0x8)] ^ S8[GB(z, 0x9)] ^ S7[GB(z, 0x2)];
        skey->cast5.K[i++] = S5[GB(z, 0x5)] ^ S6[GB(z, 0x4)] ^ S7[GB(z, 0xa)] ^ S8[GB(z, 0xb)] ^ S8[GB(z, 0x6)];

        x[3] = z[1] ^ S5[GB(z, 0x5)] ^ S6[GB(z, 0x7)] ^ S7[GB(z, 0x4)] ^ S8[GB(z, 0x6)] ^ S7[GB(z, 0x0)];
        x[2] = z[3] ^ S5[GB(x, 0x0)] ^ S6[GB(x, 0x2)] ^ S7[GB(x, 0x1)] ^ S8[GB(x, 0x3)] ^ S8[GB(z, 0x2)];
        x[1] = z[2] ^ S5[GB(x, 0x7)] ^ S6[GB(x, 0x6)] ^ S7[GB(x, 0x5)] ^ S8[GB(x, 0x4)] ^ S5[GB(z, 0x1)];
        x[0] = z[0] ^ S5[GB(x, 0xA)] ^ S6[GB(x, 0x9)] ^ S7[GB(x, 0xb)] ^ S8[GB(x, 0x8)] ^ S6[GB(z, 0x3)];
        skey->cast5.K[i++] = S5[GB(x, 0x8)] ^ S6[GB(x, 0x9)] ^ S7[GB(x, 0x7)] ^ S8[GB(x, 0x6)] ^ S5[GB(x, 0x3)];
        skey->cast5.K[i++] = S5[GB(x, 0xa)] ^ S6[GB(x, 0xb)] ^ S7[GB(x, 0x5)] ^ S8[GB(x, 0x4)] ^ S6[GB(x, 0x7)];
        skey->cast5.K[i++] = S5[GB(x, 0xc)] ^ S6[GB(x, 0xd)] ^ S7[GB(x, 0x3)] ^ S8[GB(x, 0x2)] ^ S7[GB(x, 0x8)];
        skey->cast5.K[i++] = S5[GB(x, 0xe)] ^ S6[GB(x, 0xf)] ^ S7[GB(x, 0x1)] ^ S8[GB(x, 0x0)] ^ S8[GB(x, 0xd)];
   }

   skey->cast5.keylen = keylen;

#ifdef LTC_CLEAN_STACK
   zeromem(buf, sizeof(buf));
   zeromem(x, sizeof(x));
   zeromem(z, sizeof(z));
#endif

   return CRYPT_OK;
}

#ifdef LTC_CLEAN_STACK
int cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
{
   int z;
   z = _cast5_setup(key, keylen, num_rounds, skey);
   burn_stack(sizeof(ulong32)*8 + 16 + sizeof(int)*2);
   return z;
}
#endif

#ifdef _MSC_VER
   #define INLINE __inline
#else
   #define INLINE
#endif

INLINE static ulong32 FI(ulong32 R, ulong32 Km, ulong32 Kr)
{
   ulong32 I;
   I = (Km + R);
   I = ROL(I, Kr);
   return ((S1[byte(I, 3)] ^ S2[byte(I,2)]) - S3[byte(I,1)]) + S4[byte(I,0)];
}

INLINE static ulong32 FII(ulong32 R, ulong32 Km, ulong32 Kr)
{
   ulong32 I;
   I = (Km ^ R);
   I = ROL(I, Kr);
   return ((S1[byte(I, 3)] - S2[byte(I,2)]) + S3[byte(I,1)]) ^ S4[byte(I,0)];
}

INLINE static ulong32 FIII(ulong32 R, ulong32 Km, ulong32 Kr)
{
   ulong32 I;
   I = (Km - R);
   I = ROL(I, Kr);
   return ((S1[byte(I, 3)] + S2[byte(I,2)]) ^ S3[byte(I,1)]) - S4[byte(I,0)];
}

/**
  Encrypts a block of text with LTC_CAST5
  @param pt The input plaintext (8 bytes)
  @param ct The output ciphertext (8 bytes)
  @param skey The key as scheduled
*/
#ifdef LTC_CLEAN_STACK
static int _cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
#else
int cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
#endif
{
   ulong32 R, L;

   LTC_ARGCHK(pt   != NULL);
   LTC_ARGCHK(ct   != NULL);
   LTC_ARGCHK(skey != NULL);

   LOAD32H(L,&pt[0]);
   LOAD32H(R,&pt[4]);
   L ^= FI(R, skey->cast5.K[0], skey->cast5.K[16]);
   R ^= FII(L, skey->cast5.K[1], skey->cast5.K[17]);
   L ^= FIII(R, skey->cast5.K[2], skey->cast5.K[18]);
   R ^= FI(L, skey->cast5.K[3], skey->cast5.K[19]);
   L ^= FII(R, skey->cast5.K[4], skey->cast5.K[20]);
   R ^= FIII(L, skey->cast5.K[5], skey->cast5.K[21]);
   L ^= FI(R, skey->cast5.K[6], skey->cast5.K[22]);
   R ^= FII(L, skey->cast5.K[7], skey->cast5.K[23]);
   L ^= FIII(R, skey->cast5.K[8], skey->cast5.K[24]);
   R ^= FI(L, skey->cast5.K[9], skey->cast5.K[25]);
   L ^= FII(R, skey->cast5.K[10], skey->cast5.K[26]);
   R ^= FIII(L, skey->cast5.K[11], skey->cast5.K[27]);
   if (skey->cast5.keylen > 10) {
      L ^= FI(R, skey->cast5.K[12], skey->cast5.K[28]);
      R ^= FII(L, skey->cast5.K[13], skey->cast5.K[29]);
      L ^= FIII(R, skey->cast5.K[14], skey->cast5.K[30]);
      R ^= FI(L, skey->cast5.K[15], skey->cast5.K[31]);
   }
   STORE32H(R,&ct[0]);
   STORE32H(L,&ct[4]);
   return CRYPT_OK;
}


#ifdef LTC_CLEAN_STACK
int cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
{
   int err =_cast5_ecb_encrypt(pt,ct,skey);
   burn_stack(sizeof(ulong32)*3);
   return err;
}
#endif

/**
  Decrypts a block of text with LTC_CAST5
  @param ct The input ciphertext (8 bytes)
  @param pt The output plaintext (8 bytes)
  @param skey The key as scheduled
*/
#ifdef LTC_CLEAN_STACK
static int _cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
#else
int cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
#endif
{
   ulong32 R, L;

   LTC_ARGCHK(pt   != NULL);
   LTC_ARGCHK(ct   != NULL);
   LTC_ARGCHK(skey != NULL);

   LOAD32H(R,&ct[0]);
   LOAD32H(L,&ct[4]);
   if (skey->cast5.keylen > 10) {
      R ^= FI(L, skey->cast5.K[15], skey->cast5.K[31]);
      L ^= FIII(R, skey->cast5.K[14], skey->cast5.K[30]);
      R ^= FII(L, skey->cast5.K[13], skey->cast5.K[29]);
      L ^= FI(R, skey->cast5.K[12], skey->cast5.K[28]);
   }
   R ^= FIII(L, skey->cast5.K[11], skey->cast5.K[27]);
   L ^= FII(R, skey->cast5.K[10], skey->cast5.K[26]);
   R ^= FI(L, skey->cast5.K[9], skey->cast5.K[25]);
   L ^= FIII(R, skey->cast5.K[8], skey->cast5.K[24]);
   R ^= FII(L, skey->cast5.K[7], skey->cast5.K[23]);
   L ^= FI(R, skey->cast5.K[6], skey->cast5.K[22]);
   R ^= FIII(L, skey->cast5.K[5], skey->cast5.K[21]);
   L ^= FII(R, skey->cast5.K[4], skey->cast5.K[20]);
   R ^= FI(L, skey->cast5.K[3], skey->cast5.K[19]);
   L ^= FIII(R, skey->cast5.K[2], skey->cast5.K[18]);
   R ^= FII(L, skey->cast5.K[1], skey->cast5.K[17]);
   L ^= FI(R, skey->cast5.K[0], skey->cast5.K[16]);
   STORE32H(L,&pt[0]);
   STORE32H(R,&pt[4]);

   return CRYPT_OK;
}

#ifdef LTC_CLEAN_STACK
int cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
{
   int err = _cast5_ecb_decrypt(ct,pt,skey);
   burn_stack(sizeof(ulong32)*3);
   return err;
}
#endif

/**
  Performs a self-test of the LTC_CAST5 block cipher
  @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
*/
int cast5_test(void)
{
 #ifndef LTC_TEST
    return CRYPT_NOP;
 #else
   static const struct {
       int keylen;
       unsigned char key[16];
       unsigned char pt[8];
       unsigned char ct[8];
   } tests[] = {
     { 16,
       {0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78, 0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A},
       {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
       {0x23, 0x8B, 0x4F, 0xE5, 0x84, 0x7E, 0x44, 0xB2}
     },
     { 10,
       {0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78, 0x23, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
       {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
       {0xEB, 0x6A, 0x71, 0x1A, 0x2C, 0x02, 0x27, 0x1B},
     },
     { 5,
       {0x01, 0x23, 0x45, 0x67, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
       {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
       {0x7A, 0xC8, 0x16, 0xD1, 0x6E, 0x9B, 0x30, 0x2E}
     }
   };
   int i, y, err;
   symmetric_key key;
   unsigned char tmp[2][8];

   for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
       if ((err = cast5_setup(tests[i].key, tests[i].keylen, 0, &key)) != CRYPT_OK) {
          return err;
       }
       cast5_ecb_encrypt(tests[i].pt, tmp[0], &key);
       cast5_ecb_decrypt(tmp[0], tmp[1], &key);
       if ((compare_testvector(tmp[0], 8, tests[i].ct, 8, "CAST5 Encrypt", i) != 0) ||
             (compare_testvector(tmp[1], 8, tests[i].pt, 8, "CAST5 Decrypt", i) != 0)) {
          return CRYPT_FAIL_TESTVECTOR;
       }
      /* now see if we can encrypt all zero bytes 1000 times, decrypt and come back where we started */
      for (y = 0; y < 8; y++) tmp[0][y] = 0;
      for (y = 0; y < 1000; y++) cast5_ecb_encrypt(tmp[0], tmp[0], &key);
      for (y = 0; y < 1000; y++) cast5_ecb_decrypt(tmp[0], tmp[0], &key);
      for (y = 0; y < 8; y++) if (tmp[0][y] != 0) return CRYPT_FAIL_TESTVECTOR;

   }
   return CRYPT_OK;
 #endif
}

/** Terminate the context
   @param skey    The scheduled key
*/
void cast5_done(symmetric_key *skey)
{
  LTC_UNUSED_PARAM(skey);
}

/**
  Gets suitable key size
  @param keysize [in/out] The length of the recommended key (in bytes).  This function will store the suitable size back in this variable.
  @return CRYPT_OK if the input key size is acceptable.
*/
int cast5_keysize(int *keysize)
{
   LTC_ARGCHK(keysize != NULL);
   if (*keysize < 5) {
      return CRYPT_INVALID_KEYSIZE;
   } else if (*keysize > 16) {
      *keysize = 16;
   }
   return CRYPT_OK;
}

#endif

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/* git commit:  $Format:%H$ */
/* commit time: $Format:%ai$ */