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/* salsa20.h */
/*
This file is part of the AVR-Crypto-Lib.
Copyright (C) 2006-2015 Daniel Otte (bg@nerilex.org)
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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SALSA20_H_
#define SALSA20_H_
#include <stdint.h>
typedef struct{
union{
uint8_t v8[64];
uint64_t v64[ 8];
} a;
uint8_t buffer[64];
uint8_t buffer_idx;
} salsa20_ctx_t;
void salsa20_hash(uint32_t *a);
void salsa_k32(uint32_t *dest, const uint32_t *k, const uint32_t *n);
void salsa_k16(uint32_t *dest, const uint32_t *k, const uint32_t *n);
void salsa20_genBlock256(void *dest, const void *k, const void *iv, uint64_t i);
void salsa20_genBlock128(void *dest, const void *k, const void *iv, uint64_t i);
void salsa20_init(void *key, uint16_t keylength_b, void *iv, salsa20_ctx_t *ctx);
uint8_t salsa20_gen(salsa20_ctx_t *ctx);
#endif /* SALSA20_H_ */