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/* Copyright (C) 2015-2016 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */
#ifndef BLAKE2S_H
#define BLAKE2S_H
#include <linux/types.h>
enum blake2s_lengths {
BLAKE2S_BLOCKBYTES = 64,
BLAKE2S_OUTBYTES = 32,
BLAKE2S_KEYBYTES = 32
};
struct blake2s_state {
u32 h[8];
u32 t[2];
u32 f[2];
u8 buf[2 * BLAKE2S_BLOCKBYTES];
size_t buflen;
u8 last_node;
};
void blake2s(u8 *out, const u8 *in, const u8 *key, const u8 outlen, const u64 inlen, const u8 keylen);
void blake2s_init(struct blake2s_state *state, const u8 outlen);
void blake2s_init_key(struct blake2s_state *state, const u8 outlen, const void *key, const u8 keylen);
void blake2s_update(struct blake2s_state *state, const u8 *in, u64 inlen);
void blake2s_final(struct blake2s_state *state, u8 *out, u8 outlen);
void blake2s_hmac(u8 *out, const u8 *in, const u8 *key, const u8 outlen, const u64 inlen, const u64 keylen);
#ifdef DEBUG
bool blake2s_selftest(void);
#endif
#endif
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