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/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*/
#ifndef _ZINC_POLY1305_H
#define _ZINC_POLY1305_H
#include <linux/simd.h>
#include <linux/types.h>
enum poly1305_lengths {
POLY1305_BLOCK_SIZE = 16,
POLY1305_KEY_SIZE = 32,
POLY1305_MAC_SIZE = 16
};
struct poly1305_ctx {
u8 opaque[24 * sizeof(u64)];
u32 nonce[4];
u8 data[POLY1305_BLOCK_SIZE];
size_t num;
} __aligned(8);
void poly1305_fpu_init(void);
void poly1305_init(struct poly1305_ctx *ctx, const u8 key[POLY1305_KEY_SIZE]);
void poly1305_update(struct poly1305_ctx *ctx, const u8 *input, size_t len,
simd_context_t *simd_context);
void poly1305_final(struct poly1305_ctx *ctx, u8 mac[POLY1305_MAC_SIZE],
simd_context_t *simd_context);
#ifdef DEBUG
bool poly1305_selftest(void);
#endif
#endif /* _ZINC_POLY1305_H */
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