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crypto: sha256 - remove sha256_base.h

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sha256_base.h is no longer used, so remove it.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers
2025-04-28 10:00:37 -07:00
committed by Herbert Xu
parent 11d7956d52
commit 5aab01777f
1 changed files with 0 additions and 151 deletions
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151
include/crypto/sha256_base.h
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@@ -1,151 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* sha256_base.h - core logic for SHA-256 implementations
*
* Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
*/
#ifndef _CRYPTO_SHA256_BASE_H
#define _CRYPTO_SHA256_BASE_H
#include <crypto/internal/blockhash.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/sha2.h>
#include <linux/math.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/unaligned.h>
typedef void (sha256_block_fn)(struct crypto_sha256_state *sst, u8 const *src,
int blocks);
static inline int sha224_base_init(struct shash_desc *desc)
{
struct sha256_state *sctx = shash_desc_ctx(desc);
sha224_init(sctx);
return 0;
}
static inline int sha256_base_init(struct shash_desc *desc)
{
struct sha256_state *sctx = shash_desc_ctx(desc);
sha256_init(sctx);
return 0;
}
static inline int lib_sha256_base_do_update(struct sha256_state *sctx,
const u8 *data,
unsigned int len,
sha256_block_fn *block_fn)
{
unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;
sctx->count += len;
BLOCK_HASH_UPDATE_BLOCKS(block_fn, &sctx->ctx, data, len,
SHA256_BLOCK_SIZE, sctx->buf, partial);
return 0;
}
static inline int lib_sha256_base_do_update_blocks(
struct crypto_sha256_state *sctx, const u8 *data, unsigned int len,
sha256_block_fn *block_fn)
{
unsigned int remain = len - round_down(len, SHA256_BLOCK_SIZE);
sctx->count += len - remain;
block_fn(sctx, data, len / SHA256_BLOCK_SIZE);
return remain;
}
static inline int sha256_base_do_update_blocks(
struct shash_desc *desc, const u8 *data, unsigned int len,
sha256_block_fn *block_fn)
{
return lib_sha256_base_do_update_blocks(shash_desc_ctx(desc), data,
len, block_fn);
}
static inline int lib_sha256_base_do_finup(struct crypto_sha256_state *sctx,
const u8 *src, unsigned int len,
sha256_block_fn *block_fn)
{
unsigned int bit_offset = SHA256_BLOCK_SIZE / 8 - 1;
union {
__be64 b64[SHA256_BLOCK_SIZE / 4];
u8 u8[SHA256_BLOCK_SIZE * 2];
} block = {};
if (len >= bit_offset * 8)
bit_offset += SHA256_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 / SHA256_BLOCK_SIZE);
memzero_explicit(&block, sizeof(block));
return 0;
}
static inline int sha256_base_do_finup(struct shash_desc *desc,
const u8 *src, unsigned int len,
sha256_block_fn *block_fn)
{
struct crypto_sha256_state *sctx = shash_desc_ctx(desc);
if (len >= SHA256_BLOCK_SIZE) {
int remain;
remain = lib_sha256_base_do_update_blocks(sctx, src, len,
block_fn);
src += len - remain;
len = remain;
}
return lib_sha256_base_do_finup(sctx, src, len, block_fn);
}
static inline int lib_sha256_base_do_finalize(struct sha256_state *sctx,
sha256_block_fn *block_fn)
{
unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;
struct crypto_sha256_state *state = (void *)sctx;
sctx->count -= partial;
return lib_sha256_base_do_finup(state, sctx->buf, partial, block_fn);
}
static inline int __sha256_base_finish(u32 state[SHA256_DIGEST_SIZE / 4],
u8 *out, unsigned int digest_size)
{
__be32 *digest = (__be32 *)out;
int i;
for (i = 0; digest_size > 0; i++, digest_size -= sizeof(__be32))
put_unaligned_be32(state[i], digest++);
return 0;
}
static inline void lib_sha256_base_finish(struct sha256_state *sctx, u8 *out,
unsigned int digest_size)
{
__sha256_base_finish(sctx->state, out, digest_size);
memzero_explicit(sctx, sizeof(*sctx));
}
static inline int sha256_base_finish(struct shash_desc *desc, u8 *out)
{
unsigned int digest_size = crypto_shash_digestsize(desc->tfm);
struct crypto_sha256_state *sctx = shash_desc_ctx(desc);
return __sha256_base_finish(sctx->state, out, digest_size);
}
static inline void sha256_transform_blocks(struct crypto_sha256_state *sst,
const u8 *input, int blocks)
{
sha256_blocks_generic(sst->state, input, blocks);
}
#endif /* _CRYPTO_SHA256_BASE_H */