mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-21 01:51:18 +00:00
a24d22b225
Currently <crypto/sha.h> contains declarations for both SHA-1 and SHA-2, and <crypto/sha3.h> contains declarations for SHA-3. This organization is inconsistent, but more importantly SHA-1 is no longer considered to be cryptographically secure. So to the extent possible, SHA-1 shouldn't be grouped together with any of the other SHA versions, and usage of it should be phased out. Therefore, split <crypto/sha.h> into two headers <crypto/sha1.h> and <crypto/sha2.h>, and make everyone explicitly specify whether they want the declarations for SHA-1, SHA-2, or both. This avoids making the SHA-1 declarations visible to files that don't want anything to do with SHA-1. It also prepares for potentially moving sha1.h into a new insecure/ or dangerous/ directory. Signed-off-by: Eric Biggers <ebiggers@google.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Linux/arm64 port of the OpenSSL SHA512 implementation for AArch64
|
|
*
|
|
* Copyright (c) 2016 Linaro Ltd. <ard.biesheuvel@linaro.org>
|
|
*/
|
|
|
|
#include <crypto/internal/hash.h>
|
|
#include <linux/types.h>
|
|
#include <linux/string.h>
|
|
#include <crypto/sha2.h>
|
|
#include <crypto/sha512_base.h>
|
|
#include <asm/neon.h>
|
|
|
|
MODULE_DESCRIPTION("SHA-384/SHA-512 secure hash for arm64");
|
|
MODULE_AUTHOR("Andy Polyakov <appro@openssl.org>");
|
|
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_ALIAS_CRYPTO("sha384");
|
|
MODULE_ALIAS_CRYPTO("sha512");
|
|
|
|
asmlinkage void sha512_block_data_order(u64 *digest, const void *data,
|
|
unsigned int num_blks);
|
|
EXPORT_SYMBOL(sha512_block_data_order);
|
|
|
|
static void __sha512_block_data_order(struct sha512_state *sst, u8 const *src,
|
|
int blocks)
|
|
{
|
|
sha512_block_data_order(sst->state, src, blocks);
|
|
}
|
|
|
|
static int sha512_update(struct shash_desc *desc, const u8 *data,
|
|
unsigned int len)
|
|
{
|
|
return sha512_base_do_update(desc, data, len,
|
|
__sha512_block_data_order);
|
|
}
|
|
|
|
static int sha512_finup(struct shash_desc *desc, const u8 *data,
|
|
unsigned int len, u8 *out)
|
|
{
|
|
if (len)
|
|
sha512_base_do_update(desc, data, len,
|
|
__sha512_block_data_order);
|
|
sha512_base_do_finalize(desc, __sha512_block_data_order);
|
|
|
|
return sha512_base_finish(desc, out);
|
|
}
|
|
|
|
static int sha512_final(struct shash_desc *desc, u8 *out)
|
|
{
|
|
return sha512_finup(desc, NULL, 0, out);
|
|
}
|
|
|
|
static struct shash_alg algs[] = { {
|
|
.digestsize = SHA512_DIGEST_SIZE,
|
|
.init = sha512_base_init,
|
|
.update = sha512_update,
|
|
.final = sha512_final,
|
|
.finup = sha512_finup,
|
|
.descsize = sizeof(struct sha512_state),
|
|
.base.cra_name = "sha512",
|
|
.base.cra_driver_name = "sha512-arm64",
|
|
.base.cra_priority = 150,
|
|
.base.cra_blocksize = SHA512_BLOCK_SIZE,
|
|
.base.cra_module = THIS_MODULE,
|
|
}, {
|
|
.digestsize = SHA384_DIGEST_SIZE,
|
|
.init = sha384_base_init,
|
|
.update = sha512_update,
|
|
.final = sha512_final,
|
|
.finup = sha512_finup,
|
|
.descsize = sizeof(struct sha512_state),
|
|
.base.cra_name = "sha384",
|
|
.base.cra_driver_name = "sha384-arm64",
|
|
.base.cra_priority = 150,
|
|
.base.cra_blocksize = SHA384_BLOCK_SIZE,
|
|
.base.cra_module = THIS_MODULE,
|
|
} };
|
|
|
|
static int __init sha512_mod_init(void)
|
|
{
|
|
return crypto_register_shashes(algs, ARRAY_SIZE(algs));
|
|
}
|
|
|
|
static void __exit sha512_mod_fini(void)
|
|
{
|
|
crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
|
|
}
|
|
|
|
module_init(sha512_mod_init);
|
|
module_exit(sha512_mod_fini);
|