mirror of
https://github.com/torvalds/linux.git
synced 2024-11-24 13:11:40 +00:00
e50944e219
Many shash algorithms set .cra_flags = CRYPTO_ALG_TYPE_SHASH. But this
is redundant with the C structure type ('struct shash_alg'), and
crypto_register_shash() already sets the type flag automatically,
clearing any type flag that was already there. Apparently the useless
assignment has just been copy+pasted around.
So, remove the useless assignment from all the shash algorithms.
This patch shouldn't change any actual behavior.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
150 lines
3.8 KiB
C
150 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Cryptographic API.
|
|
*
|
|
* s390 implementation of the SHA512 and SHA38 Secure Hash Algorithm.
|
|
*
|
|
* Copyright IBM Corp. 2007
|
|
* Author(s): Jan Glauber (jang@de.ibm.com)
|
|
*/
|
|
#include <crypto/internal/hash.h>
|
|
#include <crypto/sha.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/cpufeature.h>
|
|
#include <asm/cpacf.h>
|
|
|
|
#include "sha.h"
|
|
|
|
static int sha512_init(struct shash_desc *desc)
|
|
{
|
|
struct s390_sha_ctx *ctx = shash_desc_ctx(desc);
|
|
|
|
*(__u64 *)&ctx->state[0] = 0x6a09e667f3bcc908ULL;
|
|
*(__u64 *)&ctx->state[2] = 0xbb67ae8584caa73bULL;
|
|
*(__u64 *)&ctx->state[4] = 0x3c6ef372fe94f82bULL;
|
|
*(__u64 *)&ctx->state[6] = 0xa54ff53a5f1d36f1ULL;
|
|
*(__u64 *)&ctx->state[8] = 0x510e527fade682d1ULL;
|
|
*(__u64 *)&ctx->state[10] = 0x9b05688c2b3e6c1fULL;
|
|
*(__u64 *)&ctx->state[12] = 0x1f83d9abfb41bd6bULL;
|
|
*(__u64 *)&ctx->state[14] = 0x5be0cd19137e2179ULL;
|
|
ctx->count = 0;
|
|
ctx->func = CPACF_KIMD_SHA_512;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sha512_export(struct shash_desc *desc, void *out)
|
|
{
|
|
struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
|
|
struct sha512_state *octx = out;
|
|
|
|
octx->count[0] = sctx->count;
|
|
octx->count[1] = 0;
|
|
memcpy(octx->state, sctx->state, sizeof(octx->state));
|
|
memcpy(octx->buf, sctx->buf, sizeof(octx->buf));
|
|
return 0;
|
|
}
|
|
|
|
static int sha512_import(struct shash_desc *desc, const void *in)
|
|
{
|
|
struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
|
|
const struct sha512_state *ictx = in;
|
|
|
|
if (unlikely(ictx->count[1]))
|
|
return -ERANGE;
|
|
sctx->count = ictx->count[0];
|
|
|
|
memcpy(sctx->state, ictx->state, sizeof(ictx->state));
|
|
memcpy(sctx->buf, ictx->buf, sizeof(ictx->buf));
|
|
sctx->func = CPACF_KIMD_SHA_512;
|
|
return 0;
|
|
}
|
|
|
|
static struct shash_alg sha512_alg = {
|
|
.digestsize = SHA512_DIGEST_SIZE,
|
|
.init = sha512_init,
|
|
.update = s390_sha_update,
|
|
.final = s390_sha_final,
|
|
.export = sha512_export,
|
|
.import = sha512_import,
|
|
.descsize = sizeof(struct s390_sha_ctx),
|
|
.statesize = sizeof(struct sha512_state),
|
|
.base = {
|
|
.cra_name = "sha512",
|
|
.cra_driver_name= "sha512-s390",
|
|
.cra_priority = 300,
|
|
.cra_blocksize = SHA512_BLOCK_SIZE,
|
|
.cra_module = THIS_MODULE,
|
|
}
|
|
};
|
|
|
|
MODULE_ALIAS_CRYPTO("sha512");
|
|
|
|
static int sha384_init(struct shash_desc *desc)
|
|
{
|
|
struct s390_sha_ctx *ctx = shash_desc_ctx(desc);
|
|
|
|
*(__u64 *)&ctx->state[0] = 0xcbbb9d5dc1059ed8ULL;
|
|
*(__u64 *)&ctx->state[2] = 0x629a292a367cd507ULL;
|
|
*(__u64 *)&ctx->state[4] = 0x9159015a3070dd17ULL;
|
|
*(__u64 *)&ctx->state[6] = 0x152fecd8f70e5939ULL;
|
|
*(__u64 *)&ctx->state[8] = 0x67332667ffc00b31ULL;
|
|
*(__u64 *)&ctx->state[10] = 0x8eb44a8768581511ULL;
|
|
*(__u64 *)&ctx->state[12] = 0xdb0c2e0d64f98fa7ULL;
|
|
*(__u64 *)&ctx->state[14] = 0x47b5481dbefa4fa4ULL;
|
|
ctx->count = 0;
|
|
ctx->func = CPACF_KIMD_SHA_512;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct shash_alg sha384_alg = {
|
|
.digestsize = SHA384_DIGEST_SIZE,
|
|
.init = sha384_init,
|
|
.update = s390_sha_update,
|
|
.final = s390_sha_final,
|
|
.export = sha512_export,
|
|
.import = sha512_import,
|
|
.descsize = sizeof(struct s390_sha_ctx),
|
|
.statesize = sizeof(struct sha512_state),
|
|
.base = {
|
|
.cra_name = "sha384",
|
|
.cra_driver_name= "sha384-s390",
|
|
.cra_priority = 300,
|
|
.cra_blocksize = SHA384_BLOCK_SIZE,
|
|
.cra_ctxsize = sizeof(struct s390_sha_ctx),
|
|
.cra_module = THIS_MODULE,
|
|
}
|
|
};
|
|
|
|
MODULE_ALIAS_CRYPTO("sha384");
|
|
|
|
static int __init init(void)
|
|
{
|
|
int ret;
|
|
|
|
if (!cpacf_query_func(CPACF_KIMD, CPACF_KIMD_SHA_512))
|
|
return -EOPNOTSUPP;
|
|
if ((ret = crypto_register_shash(&sha512_alg)) < 0)
|
|
goto out;
|
|
if ((ret = crypto_register_shash(&sha384_alg)) < 0)
|
|
crypto_unregister_shash(&sha512_alg);
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static void __exit fini(void)
|
|
{
|
|
crypto_unregister_shash(&sha512_alg);
|
|
crypto_unregister_shash(&sha384_alg);
|
|
}
|
|
|
|
module_cpu_feature_match(MSA, init);
|
|
module_exit(fini);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("SHA512 and SHA-384 Secure Hash Algorithm");
|