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.c (1205B)

      1// SPDX-License-Identifier: GPL-2.0 OR MIT
      2/*
      3 * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
      4 *
      5 * This is an implementation of the BLAKE2s hash and PRF functions.
      6 *
      7 * Information: https://blake2.net/
      8 *
      9 */
     10
     11#include <crypto/internal/blake2s.h>
     12#include <linux/types.h>
     13#include <linux/string.h>
     14#include <linux/kernel.h>
     15#include <linux/module.h>
     16#include <linux/init.h>
     17#include <linux/bug.h>
     18
     19void blake2s_update(struct blake2s_state *state, const u8 *in, size_t inlen)
     20{
     21	__blake2s_update(state, in, inlen, false);
     22}
     23EXPORT_SYMBOL(blake2s_update);
     24
     25void blake2s_final(struct blake2s_state *state, u8 *out)
     26{
     27	WARN_ON(IS_ENABLED(DEBUG) && !out);
     28	__blake2s_final(state, out, false);
     29	memzero_explicit(state, sizeof(*state));
     30}
     31EXPORT_SYMBOL(blake2s_final);
     32
     33static int __init blake2s_mod_init(void)
     34{
     35	if (!IS_ENABLED(CONFIG_CRYPTO_MANAGER_DISABLE_TESTS) &&
     36	    WARN_ON(!blake2s_selftest()))
     37		return -ENODEV;
     38	return 0;
     39}
     40
     41static void __exit blake2s_mod_exit(void)
     42{
     43}
     44
     45module_init(blake2s_mod_init);
     46module_exit(blake2s_mod_exit);
     47MODULE_LICENSE("GPL v2");
     48MODULE_DESCRIPTION("BLAKE2s hash function");
     49MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");