blob: 6fc73bf8766dbbf49a0ecf10d541efbe8ee31ba6 [file] [log] [blame]
David McCulloughf0be44f2012-09-07 04:17:02 +08001/*
2 * Cryptographic API.
3 * Glue code for the SHA1 Secure Hash Algorithm assembler implementation
4 *
5 * This file is based on sha1_generic.c and sha1_ssse3_glue.c
6 *
7 * Copyright (c) Alan Smithee.
8 * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
9 * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
10 * Copyright (c) Mathias Krause <minipli@googlemail.com>
11 *
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License as published by the Free
14 * Software Foundation; either version 2 of the License, or (at your option)
15 * any later version.
16 *
17 */
18
19#include <crypto/internal/hash.h>
20#include <linux/init.h>
21#include <linux/module.h>
22#include <linux/cryptohash.h>
23#include <linux/types.h>
24#include <crypto/sha.h>
Ard Biesheuvel90451d62015-04-09 12:55:39 +020025#include <crypto/sha1_base.h>
David McCulloughf0be44f2012-09-07 04:17:02 +080026#include <asm/byteorder.h>
27
Ard Biesheuvel90451d62015-04-09 12:55:39 +020028#include "sha1.h"
David McCulloughf0be44f2012-09-07 04:17:02 +080029
Jussi Kivilinna1f8673d2014-07-29 17:14:09 +010030asmlinkage void sha1_block_data_order(u32 *digest,
David McCulloughf0be44f2012-09-07 04:17:02 +080031 const unsigned char *data, unsigned int rounds);
32
Jussi Kivilinna60468252014-07-29 17:14:14 +010033int sha1_update_arm(struct shash_desc *desc, const u8 *data,
34 unsigned int len)
David McCulloughf0be44f2012-09-07 04:17:02 +080035{
Ard Biesheuvel90451d62015-04-09 12:55:39 +020036 /* make sure casting to sha1_block_fn() is safe */
37 BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
David McCulloughf0be44f2012-09-07 04:17:02 +080038
Ard Biesheuvel90451d62015-04-09 12:55:39 +020039 return sha1_base_do_update(desc, data, len,
40 (sha1_block_fn *)sha1_block_data_order);
David McCulloughf0be44f2012-09-07 04:17:02 +080041}
Jussi Kivilinna60468252014-07-29 17:14:14 +010042EXPORT_SYMBOL_GPL(sha1_update_arm);
David McCulloughf0be44f2012-09-07 04:17:02 +080043
David McCulloughf0be44f2012-09-07 04:17:02 +080044static int sha1_final(struct shash_desc *desc, u8 *out)
45{
Ard Biesheuvel90451d62015-04-09 12:55:39 +020046 sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_block_data_order);
47 return sha1_base_finish(desc, out);
David McCulloughf0be44f2012-09-07 04:17:02 +080048}
49
Ard Biesheuvel90451d62015-04-09 12:55:39 +020050int sha1_finup_arm(struct shash_desc *desc, const u8 *data,
51 unsigned int len, u8 *out)
David McCulloughf0be44f2012-09-07 04:17:02 +080052{
Ard Biesheuvel90451d62015-04-09 12:55:39 +020053 sha1_base_do_update(desc, data, len,
54 (sha1_block_fn *)sha1_block_data_order);
55 return sha1_final(desc, out);
David McCulloughf0be44f2012-09-07 04:17:02 +080056}
Ard Biesheuvel90451d62015-04-09 12:55:39 +020057EXPORT_SYMBOL_GPL(sha1_finup_arm);
David McCulloughf0be44f2012-09-07 04:17:02 +080058
59static struct shash_alg alg = {
60 .digestsize = SHA1_DIGEST_SIZE,
Ard Biesheuvel90451d62015-04-09 12:55:39 +020061 .init = sha1_base_init,
Jussi Kivilinna60468252014-07-29 17:14:14 +010062 .update = sha1_update_arm,
David McCulloughf0be44f2012-09-07 04:17:02 +080063 .final = sha1_final,
Ard Biesheuvel90451d62015-04-09 12:55:39 +020064 .finup = sha1_finup_arm,
Jussi Kivilinna1f8673d2014-07-29 17:14:09 +010065 .descsize = sizeof(struct sha1_state),
David McCulloughf0be44f2012-09-07 04:17:02 +080066 .base = {
67 .cra_name = "sha1",
68 .cra_driver_name= "sha1-asm",
69 .cra_priority = 150,
70 .cra_flags = CRYPTO_ALG_TYPE_SHASH,
71 .cra_blocksize = SHA1_BLOCK_SIZE,
72 .cra_module = THIS_MODULE,
73 }
74};
75
76
77static int __init sha1_mod_init(void)
78{
79 return crypto_register_shash(&alg);
80}
81
82
83static void __exit sha1_mod_fini(void)
84{
85 crypto_unregister_shash(&alg);
86}
87
88
89module_init(sha1_mod_init);
90module_exit(sha1_mod_fini);
91
92MODULE_LICENSE("GPL");
93MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm (ARM)");
Kees Cook5d26a102014-11-20 17:05:53 -080094MODULE_ALIAS_CRYPTO("sha1");
David McCulloughf0be44f2012-09-07 04:17:02 +080095MODULE_AUTHOR("David McCullough <ucdevel@gmail.com>");