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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Common values for the Poly1305 algorithm
*/
#ifndef _CRYPTO_INTERNAL_POLY1305_H
#define _CRYPTO_INTERNAL_POLY1305_H
#include <asm/unaligned.h>
#include <linux/types.h>
#include <crypto/poly1305.h>
/*
* Poly1305 core functions. These only accept whole blocks; the caller must
* handle any needed block buffering and padding. 'hibit' must be 1 for any
* full blocks, or 0 for the final block if it had to be padded. If 'nonce' is
* non-NULL, then it's added at the end to compute the Poly1305 MAC. Otherwise,
* only the ε-almost-∆-universal hash function (not the full MAC) is computed.
*/
void poly1305_core_setkey(struct poly1305_core_key *key,
const u8 raw_key[POLY1305_BLOCK_SIZE]);
static inline void poly1305_core_init(struct poly1305_state *state)
{
*state = (struct poly1305_state){};
}
void poly1305_core_blocks(struct poly1305_state *state,
const struct poly1305_core_key *key, const void *src,
unsigned int nblocks, u32 hibit);
void poly1305_core_emit(const struct poly1305_state *state, const u32 nonce[4],
void *dst);
#endif