120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
/*
|
|
* sha512-glue.c - accelerated SHA-384/512 for ARM
|
|
*
|
|
* Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <crypto/internal/hash.h>
|
|
#include <crypto/sha.h>
|
|
#include <crypto/sha512_base.h>
|
|
#include <linux/crypto.h>
|
|
#include <linux/module.h>
|
|
|
|
#include <asm/hwcap.h>
|
|
#include <asm/neon.h>
|
|
|
|
#include "sha512.h"
|
|
|
|
MODULE_DESCRIPTION("Accelerated SHA-384/SHA-512 secure hash for ARM");
|
|
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
|
|
MODULE_LICENSE("GPL v2");
|
|
|
|
MODULE_ALIAS_CRYPTO("sha384");
|
|
MODULE_ALIAS_CRYPTO("sha512");
|
|
MODULE_ALIAS_CRYPTO("sha384-arm");
|
|
MODULE_ALIAS_CRYPTO("sha512-arm");
|
|
|
|
asmlinkage void sha512_block_data_order(u64 *state, u8 const *src, int blocks);
|
|
|
|
int sha512_arm_update(struct shash_desc *desc, const u8 *data,
|
|
unsigned int len)
|
|
{
|
|
return sha512_base_do_update(desc, data, len,
|
|
(sha512_block_fn *)sha512_block_data_order);
|
|
}
|
|
|
|
int sha512_arm_final(struct shash_desc *desc, u8 *out)
|
|
{
|
|
sha512_base_do_finalize(desc,
|
|
(sha512_block_fn *)sha512_block_data_order);
|
|
return sha512_base_finish(desc, out);
|
|
}
|
|
|
|
int sha512_arm_finup(struct shash_desc *desc, const u8 *data,
|
|
unsigned int len, u8 *out)
|
|
{
|
|
sha512_base_do_update(desc, data, len,
|
|
(sha512_block_fn *)sha512_block_data_order);
|
|
return sha512_arm_final(desc, out);
|
|
}
|
|
|
|
static struct shash_alg sha512_arm_algs[] = { {
|
|
.init = sha384_base_init,
|
|
.update = sha512_arm_update,
|
|
.final = sha512_arm_final,
|
|
.finup = sha512_arm_finup,
|
|
.descsize = sizeof(struct sha512_state),
|
|
.digestsize = SHA384_DIGEST_SIZE,
|
|
.base = {
|
|
.cra_name = "sha384",
|
|
.cra_driver_name = "sha384-arm",
|
|
.cra_priority = 250,
|
|
.cra_blocksize = SHA512_BLOCK_SIZE,
|
|
.cra_module = THIS_MODULE,
|
|
}
|
|
}, {
|
|
.init = sha512_base_init,
|
|
.update = sha512_arm_update,
|
|
.final = sha512_arm_final,
|
|
.finup = sha512_arm_finup,
|
|
.descsize = sizeof(struct sha512_state),
|
|
.digestsize = SHA512_DIGEST_SIZE,
|
|
.base = {
|
|
.cra_name = "sha512",
|
|
.cra_driver_name = "sha512-arm",
|
|
.cra_priority = 250,
|
|
.cra_blocksize = SHA512_BLOCK_SIZE,
|
|
.cra_module = THIS_MODULE,
|
|
}
|
|
} };
|
|
|
|
static int __init sha512_arm_mod_init(void)
|
|
{
|
|
int err;
|
|
|
|
err = crypto_register_shashes(sha512_arm_algs,
|
|
ARRAY_SIZE(sha512_arm_algs));
|
|
if (err)
|
|
return err;
|
|
|
|
if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && cpu_has_neon()) {
|
|
err = crypto_register_shashes(sha512_neon_algs,
|
|
ARRAY_SIZE(sha512_neon_algs));
|
|
if (err)
|
|
goto err_unregister;
|
|
}
|
|
return 0;
|
|
|
|
err_unregister:
|
|
crypto_unregister_shashes(sha512_arm_algs,
|
|
ARRAY_SIZE(sha512_arm_algs));
|
|
|
|
return err;
|
|
}
|
|
|
|
static void __exit sha512_arm_mod_fini(void)
|
|
{
|
|
crypto_unregister_shashes(sha512_arm_algs,
|
|
ARRAY_SIZE(sha512_arm_algs));
|
|
if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && cpu_has_neon())
|
|
crypto_unregister_shashes(sha512_neon_algs,
|
|
ARRAY_SIZE(sha512_neon_algs));
|
|
}
|
|
|
|
module_init(sha512_arm_mod_init);
|
|
module_exit(sha512_arm_mod_fini);
|