path: root/crypto/wp512.c

/*
 * Cryptographic API.
 *
 * Whirlpool hashing Algorithm
 *
 * The Whirlpool algorithm was developed by Paulo S. L. M. Barreto and
 * Vincent Rijmen.  It has been selected as one of cryptographic
 * primitives by the NESSIE project http://www.cryptonessie.org/
 *
 * The original authors have disclaimed all copyright interest in this
 * code and thus put it in the public domain. The subsequent authors
 * have put this under the GNU General Public License.
 *
 * By Aaron Grothe ajgrothe@yahoo.com, August 23, 2004
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 */
#include <crypto/internal/hash.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <asm/byteorder.h>
#include <linux/types.h>

#define WP512_DIGEST_SIZE 64
#define WP384_DIGEST_SIZE 48
#define WP256_DIGEST_SIZE 32

#define WP512_BLOCK_SIZE  64
#define WP512_LENGTHBYTES 32

#define WHIRLPOOL_ROUNDS 10

struct wp512_ctx {
	u8  bitLength[WP512_LENGTHBYTES];
	u8  buffer[WP512_BLOCK_SIZE];
	int bufferBits;
	int bufferPos;
	u64 hash[WP512_DIGEST_SIZE/8];
};

/*
 * Though Whirlpool is endianness-neutral, the encryption tables are listed
 * in BIG-ENDIAN format, which is adopted throughout this implementation
 * (but little-endian notation would be equally suitable if consistently
 * employed).
 */

static const u64 C0[256] = {
	0x18186018c07830d8ULL, 0x23238c2305af4626ULL, 0xc6c63fc67ef991b8ULL,
	0xe8e887e8136fcdfbULL, 0x878726874ca113cbULL, 0xb8b8dab8a9626d11ULL,
	0x0101040108050209ULL, 0x4f4f214f426e9e0dULL, 0x3636d836adee6c9bULL,
	0xa6a6a2a6590451ffULL, 0xd2d26fd2debdb90cULL, 0xf5f5f3f5fb06f70eULL,
	0x7979f979ef80f296ULL, 0x6f6fa16f5fcede30ULL, 0x91917e91fcef3f6dULL,
	0x52525552aa07a4f8ULL, 0x60609d6027fdc047ULL, 0xbcbccabc89766535ULL,
	0x9b9b569baccd2b37ULL, 0x8e8e028e048c018aULL, 0xa3a3b6a371155bd2ULL,
	0x0c0c300c603c186cULL, 0x7b7bf17bff8af684ULL, 0x3535d435b5e16a80ULL,
	0x1d1d741de8693af5ULL, 0xe0e0a7e05347ddb3ULL, 0xd7d77bd7f6acb321ULL,
	0xc2c22fc25eed999cULL, 0x2e2eb82e6d965c43ULL, 0x4b4b314b627a9629ULL,
	0xfefedffea321e15dULL, 0x575741578216aed5ULL, 0x15155415a8412abdULL,
	0x7777c1779fb6eee8ULL, 0x3737dc37a5eb6e92ULL, 0xe5e5b3e57b56d79eULL,
	0x9f9f469f8cd92313ULL, 0xf0f0e7f0d317fd23ULL, 0x4a4a354a6a7f9420ULL,
	0xdada4fda9e95a944ULL, 0x58587d58fa25b0a2ULL, 0xc9c903c906ca8fcfULL,
	0x2929a429558d527cULL, 0x0a0a280a5022145aULL, 0xb1b1feb1e14f7f50ULL,
	0xa0a0baa0691a5dc9ULL, 0x6b6bb16b7fdad614ULL, 0x85852e855cab17d9ULL,
	0xbdbdcebd8173673cULL, 0x5d5d695dd234ba8fULL, 0x1010401080502090ULL,
	0xf4f4f7f4f303f507ULL, 0xcbcb0bcb16c08bddULL, 0x3e3ef83eedc67cd3ULL,
	0x0505140528110a2dULL, 0x676781671fe6ce78ULL, 0xe4e4b7e47353d597ULL,
	0x27279c2725bb4e02ULL, 0x4141194132588273ULL, 0x8b8b168b2c9d0ba7ULL,
	0xa7a7a6a7510153f6ULL, 0x7d7de97dcf94fab2ULL, 0x95956e95dcfb3749ULL,
	0xd8d847d88e9fad56ULL, 0xfbfbcbfb8b30eb70ULL, 0xeeee9fee2371c1cdULL,
	0x7c7ced7cc791f8bbULL, 0x6666856617e3cc71ULL, 0xdddd53dda68ea77bULL,
	0x17175c17b84b2eafULL, 0x4747014702468e45ULL, 0x9e9e429e84dc211aULL,
	0xcaca0fca1ec589d4ULL, 0x2d2db42d75995a58ULL, 0xbfbfc6bf9179632eULL,
	0x07071c07381b0e3fULL, 0xadad8ead012347acULL, 0x5a5a755aea2fb4b0ULL,
	0x838336836cb51befULL, 0x3333cc3385ff66b6ULL, 0x636391633ff2c65cULL,
	0x02020802100a0412ULL, 0xaaaa92aa39384993ULL, 0x7171d971afa8e2deULL,
	0xc8c807c80ecf8dc6ULL, 0x19196419c87d32d1ULL, 0x494939497270923bULL,
	0xd9d943d9869aaf5fULL, 0xf2f2eff2c31df931ULL, 0xe3e3abe34b48dba8ULL,
	0x5b5b715be22ab6b9ULL, 0x88881a8834920dbcULL, 0x9a9a529aa4c8293eULL,
	0x262698262dbe4c0bULL, 0x3232c8328dfa64bfULL, 0xb0b0fab0e94a7d59ULL,
	0xe9e983e91b6acff2ULL, 0x0f0f3c0f78331e77ULL, 0xd5d573d5e6a6b733ULL,
	0x80803a8074ba1df4ULL, 0xbebec2be997c6127ULL, 0xcdcd13cd26de87ebULL,
	0x3434d034bde46889ULL, 0x48483d487a759032ULL, 0xffffdbffab24e354ULL,
	0x7a7af57af78ff48dULL, 0x90907a90f4ea3d64ULL, 0x5f5f615fc23ebe9dULL,
	0x202080201da0403dULL, 0x6868bd6867d5d00fULL, 0x1a1a681ad07234caULL,
	0xaeae82ae192c41b7ULL, 0xb4b4eab4c95e757dULL, 0x54544d549a19a8ceULL,
	0x93937693ece53b7fULL, 0x222288220daa442fULL, 0x64648d6407e9c863ULL,
	0xf1f1e3f1db12ff2aULL, 0x7373d173bfa2e6ccULL, 0x12124812905a2482ULL,
	0x40401d403a5d807aULL, 0x0808200840281048ULL, 0xc3c32bc356e89b95ULL,
	0xecec97ec337bc5dfULL, 0xdbdb4bdb9690ab4dULL, 0xa1a1bea1611f5fc0ULL,
	0x8d8d0e8d1c830791ULL, 0x3d3df43df5c97ac8ULL, 0x97976697ccf1335bULL,
	0x0000000000000000ULL, 0xcfcf1bcf36d483f9ULL, 0x2b2bac2b4587566eULL,
	0x7676c57697b3ece1ULL, 0x8282328264b019e6ULL, 0xd6d67fd6fea9b128ULL,
	0x1b1b6c1bd