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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Common values for the Poly1305 algorithm4 */5 6#ifndef _CRYPTO_INTERNAL_POLY1305_H7#define _CRYPTO_INTERNAL_POLY1305_H8 9#include <linux/unaligned.h>10#include <linux/types.h>11#include <crypto/poly1305.h>12 13/*14 * Poly1305 core functions. These only accept whole blocks; the caller must15 * handle any needed block buffering and padding. 'hibit' must be 1 for any16 * full blocks, or 0 for the final block if it had to be padded. If 'nonce' is17 * non-NULL, then it's added at the end to compute the Poly1305 MAC. Otherwise,18 * only the ε-almost-∆-universal hash function (not the full MAC) is computed.19 */20 21void poly1305_core_setkey(struct poly1305_core_key *key,22 const u8 raw_key[POLY1305_BLOCK_SIZE]);23static inline void poly1305_core_init(struct poly1305_state *state)24{25 *state = (struct poly1305_state){};26}27 28void poly1305_core_blocks(struct poly1305_state *state,29 const struct poly1305_core_key *key, const void *src,30 unsigned int nblocks, u32 hibit);31void poly1305_core_emit(const struct poly1305_state *state, const u32 nonce[4],32 void *dst);33 34#endif35