cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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blake2s_generic.c (2275B)

      1// SPDX-License-Identifier: GPL-2.0 OR MIT
      2/*
      3 * shash interface to the generic implementation of BLAKE2s
      4 *
      5 * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
      6 */
      7
      8#include <crypto/internal/blake2s.h>
      9#include <crypto/internal/hash.h>
     10
     11#include <linux/types.h>
     12#include <linux/kernel.h>
     13#include <linux/module.h>
     14
     15static int crypto_blake2s_update_generic(struct shash_desc *desc,
     16					 const u8 *in, unsigned int inlen)
     17{
     18	return crypto_blake2s_update(desc, in, inlen, true);
     19}
     20
     21static int crypto_blake2s_final_generic(struct shash_desc *desc, u8 *out)
     22{
     23	return crypto_blake2s_final(desc, out, true);
     24}
     25
     26#define BLAKE2S_ALG(name, driver_name, digest_size)			\
     27	{								\
     28		.base.cra_name		= name,				\
     29		.base.cra_driver_name	= driver_name,			\
     30		.base.cra_priority	= 100,				\
     31		.base.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,	\
     32		.base.cra_blocksize	= BLAKE2S_BLOCK_SIZE,		\
     33		.base.cra_ctxsize	= sizeof(struct blake2s_tfm_ctx), \
     34		.base.cra_module	= THIS_MODULE,			\
     35		.digestsize		= digest_size,			\
     36		.setkey			= crypto_blake2s_setkey,	\
     37		.init			= crypto_blake2s_init,		\
     38		.update			= crypto_blake2s_update_generic, \
     39		.final			= crypto_blake2s_final_generic,	\
     40		.descsize		= sizeof(struct blake2s_state),	\
     41	}
     42
     43static struct shash_alg blake2s_algs[] = {
     44	BLAKE2S_ALG("blake2s-128", "blake2s-128-generic",
     45		    BLAKE2S_128_HASH_SIZE),
     46	BLAKE2S_ALG("blake2s-160", "blake2s-160-generic",
     47		    BLAKE2S_160_HASH_SIZE),
     48	BLAKE2S_ALG("blake2s-224", "blake2s-224-generic",
     49		    BLAKE2S_224_HASH_SIZE),
     50	BLAKE2S_ALG("blake2s-256", "blake2s-256-generic",
     51		    BLAKE2S_256_HASH_SIZE),
     52};
     53
     54static int __init blake2s_mod_init(void)
     55{
     56	return crypto_register_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
     57}
     58
     59static void __exit blake2s_mod_exit(void)
     60{
     61	crypto_unregister_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
     62}
     63
     64subsys_initcall(blake2s_mod_init);
     65module_exit(blake2s_mod_exit);
     66
     67MODULE_ALIAS_CRYPTO("blake2s-128");
     68MODULE_ALIAS_CRYPTO("blake2s-128-generic");
     69MODULE_ALIAS_CRYPTO("blake2s-160");
     70MODULE_ALIAS_CRYPTO("blake2s-160-generic");
     71MODULE_ALIAS_CRYPTO("blake2s-224");
     72MODULE_ALIAS_CRYPTO("blake2s-224-generic");
     73MODULE_ALIAS_CRYPTO("blake2s-256");
     74MODULE_ALIAS_CRYPTO("blake2s-256-generic");
     75MODULE_LICENSE("GPL v2");