/* SPDX-License-Identifier: GPL-2.0 */
/*
* Common values for the Poly1305 algorithm
*/
#ifndef _CRYPTO_INTERNAL_POLY1305_H
#define _CRYPTO_INTERNAL_POLY1305_H
#include <crypto/poly1305.h>
#include <linux/types.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);
void poly1305_block_init_arch(struct poly1305_block_state *state,
const u8 raw_key[POLY1305_BLOCK_SIZE]);
void poly1305_block_init_generic(struct poly1305_block_state *state,
const u8 raw_key[POLY1305_BLOCK_SIZE]);
void poly1305_blocks_arch(struct poly1305_block_state *state, const u8 *src,
unsigned int len, u32 padbit);
static inline void poly1305_blocks_generic(struct poly1305_block_state *state,
const u8 *src, unsigned int len,
u32 padbit)
{
poly1305_core_blocks(&state->h, &state->core_r, src,
len / POLY1305_BLOCK_SIZE, padbit);
}
void poly1305_emit_arch(const struct poly1305_state *state,
u8 digest[POLY1305_DIGEST_SIZE], const u32 nonce[4 ]);
static inline void poly1305_emit_generic(const struct poly1305_state *state,
u8 digest[POLY1305_DIGEST_SIZE],
const u32 nonce[4 ])
{
poly1305_core_emit(state, nonce, digest);
}
#endif
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(vorverarbeitet am 2026-09-28)
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