Commit c76ed879 authored by Eric Biggers's avatar Eric Biggers
Browse files

crypto: sha1 - Remove sha1_base.h 



sha1_base.h is no longer used, so remove it.

Reviewed-by: default avatarArd Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20250712232329.818226-15-ebiggers@kernel.org


Signed-off-by: default avatarEric Biggers <ebiggers@kernel.org>
parent f3d6cb3d

include/crypto/sha1_base.h

deleted100644 → 0
+0 −82
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * sha1_base.h - core logic for SHA-1 implementations

 *

 * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>

 */



#ifndef _CRYPTO_SHA1_BASE_H

#define _CRYPTO_SHA1_BASE_H



#include <crypto/internal/hash.h>

#include <crypto/sha1.h>

#include <linux/math.h>

#include <linux/string.h>

#include <linux/types.h>

#include <linux/unaligned.h>



typedef void (sha1_block_fn)(struct sha1_state *sst, u8 const *src, int blocks);



static inline int sha1_base_init(struct shash_desc *desc)

{

	struct sha1_state *sctx = shash_desc_ctx(desc);



	sctx->state[0] = SHA1_H0;

	sctx->state[1] = SHA1_H1;

	sctx->state[2] = SHA1_H2;

	sctx->state[3] = SHA1_H3;

	sctx->state[4] = SHA1_H4;

	sctx->count = 0;



	return 0;

}



static inline int sha1_base_do_update_blocks(struct shash_desc *desc,

					     const u8 *data,

					     unsigned int len,

					     sha1_block_fn *block_fn)

{

	unsigned int remain = len - round_down(len, SHA1_BLOCK_SIZE);

	struct sha1_state *sctx = shash_desc_ctx(desc);



	sctx->count += len - remain;

	block_fn(sctx, data, len / SHA1_BLOCK_SIZE);

	return remain;

}



static inline int sha1_base_do_finup(struct shash_desc *desc,

				     const u8 *src, unsigned int len,

				     sha1_block_fn *block_fn)

{

	unsigned int bit_offset = SHA1_BLOCK_SIZE / 8 - 1;

	struct sha1_state *sctx = shash_desc_ctx(desc);

	union {

		__be64 b64[SHA1_BLOCK_SIZE / 4];

		u8 u8[SHA1_BLOCK_SIZE * 2];

	} block = {};



	if (len >= bit_offset * 8)

		bit_offset += SHA1_BLOCK_SIZE / 8;

	memcpy(&block, src, len);

	block.u8[len] = 0x80;

	sctx->count += len;

	block.b64[bit_offset] = cpu_to_be64(sctx->count << 3);

	block_fn(sctx, block.u8, (bit_offset + 1) * 8 / SHA1_BLOCK_SIZE);

	memzero_explicit(&block, sizeof(block));



	return 0;

}



static inline int sha1_base_finish(struct shash_desc *desc, u8 *out)

{

	struct sha1_state *sctx = shash_desc_ctx(desc);

	__be32 *digest = (__be32 *)out;

	int i;



	for (i = 0; i < SHA1_DIGEST_SIZE / sizeof(__be32); i++)

		put_unaligned_be32(sctx->state[i], digest++);



	return 0;

}



#endif /* _CRYPTO_SHA1_BASE_H */