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crypto: sha512-generic - Use API partial block handling

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Use the Crypto API partial block handling.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2025-04-18 11:00:27 +08:00
parent 561aab1104
commit 216623af53
2 changed files with 17 additions and 36 deletions
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45
crypto/sha512_generic.c
View File

@ -6,16 +6,10 @@
* Copyright (c) 2003 Kyle McMartin <kyle@debian.org>
*/
#include <crypto/internal/hash.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/crypto.h>
#include <linux/types.h>
#include <crypto/sha2.h>
#include <crypto/sha512_base.h>
#include <linux/percpu.h>
#include <asm/byteorder.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/unaligned.h>
const u8 sha384_zero_message_hash[SHA384_DIGEST_SIZE] = {
@ -148,45 +142,39 @@ sha512_transform(u64 *state, const u8 *input)
void sha512_generic_block_fn(struct sha512_state *sst, u8 const *src,
int blocks)
{
while (blocks--) {
do {
sha512_transform(sst->state, src);
src += SHA512_BLOCK_SIZE;
}
} while (--blocks);
}
EXPORT_SYMBOL_GPL(sha512_generic_block_fn);
int crypto_sha512_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
static int crypto_sha512_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
return sha512_base_do_update(desc, data, len, sha512_generic_block_fn);
return sha512_base_do_update_blocks(desc, data, len,
sha512_generic_block_fn);
}
EXPORT_SYMBOL(crypto_sha512_update);
static int sha512_final(struct shash_desc *desc, u8 *hash)
static int crypto_sha512_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *hash)
{
sha512_base_do_finalize(desc, sha512_generic_block_fn);
sha512_base_do_finup(desc, data, len, sha512_generic_block_fn);
return sha512_base_finish(desc, hash);
}
int crypto_sha512_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *hash)
{
sha512_base_do_update(desc, data, len, sha512_generic_block_fn);
return sha512_final(desc, hash);
}
EXPORT_SYMBOL(crypto_sha512_finup);
static struct shash_alg sha512_algs[2] = { {
.digestsize = SHA512_DIGEST_SIZE,
.init = sha512_base_init,
.update = crypto_sha512_update,
.final = sha512_final,
.finup = crypto_sha512_finup,
.descsize = sizeof(struct sha512_state),
.descsize = SHA512_STATE_SIZE,
.base = {
.cra_name = "sha512",
.cra_driver_name = "sha512-generic",
.cra_priority = 100,
.cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY |
CRYPTO_AHASH_ALG_FINUP_MAX,
.cra_blocksize = SHA512_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}
@ -194,13 +182,14 @@ static struct shash_alg sha512_algs[2] = { {
.digestsize = SHA384_DIGEST_SIZE,
.init = sha384_base_init,
.update = crypto_sha512_update,
.final = sha512_final,
.finup = crypto_sha512_finup,
.descsize = sizeof(struct sha512_state),
.descsize = SHA512_STATE_SIZE,
.base = {
.cra_name = "sha384",
.cra_driver_name = "sha384-generic",
.cra_priority = 100,
.cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY |
CRYPTO_AHASH_ALG_FINUP_MAX,
.cra_blocksize = SHA384_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}

8
include/crypto/sha2.h
View File

@ -82,14 +82,6 @@ struct sha512_state {
u8 buf[SHA512_BLOCK_SIZE];
};
struct shash_desc;
extern int crypto_sha512_update(struct shash_desc *desc, const u8 *data,
unsigned int len);
extern int crypto_sha512_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *hash);
/*
* Stand-alone implementation of the SHA256 algorithm. It is designed to
* have as little dependencies as possible so it can be used in the