1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Cryptographic API.
4 * Glue code for the SHA1 Secure Hash Algorithm assembler implementation
5 *
6 * This file is based on sha1_generic.c and sha1_ssse3_glue.c
7 *
8 * Copyright (c) Alan Smithee.
9 * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
10 * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
11 * Copyright (c) Mathias Krause <minipli@googlemail.com>
12 */
13
14 #include <crypto/internal/hash.h>
15 #include <linux/init.h>
16 #include <linux/module.h>
17 #include <linux/types.h>
18 #include <crypto/sha1.h>
19 #include <crypto/sha1_base.h>
20 #include <asm/byteorder.h>
21
22 #include "sha1.h"
23
24 asmlinkage void sha1_block_data_order(struct sha1_state *digest,
25 const u8 *data, int rounds);
26
27 int sha1_update_arm(struct shash_desc *desc, const u8 *data,
28 unsigned int len)
29 {
30 /* make sure signature matches sha1_block_fn() */
31 BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
32
33 return sha1_base_do_update(desc, data, len, sha1_block_data_order);
34 }
35 EXPORT_SYMBOL_GPL(sha1_update_arm);
36
37 static int sha1_final(struct shash_desc *desc, u8 *out)
38 {
39 sha1_base_do_finalize(desc, sha1_block_data_order);
40 return sha1_base_finish(desc, out);
41 }
42
43 int sha1_finup_arm(struct shash_desc *desc, const u8 *data,
44 unsigned int len, u8 *out)
45 {
46 sha1_base_do_update(desc, data, len, sha1_block_data_order);
47 return sha1_final(desc, out);
48 }
49 EXPORT_SYMBOL_GPL(sha1_finup_arm);
50
51 static struct shash_alg alg = {
52 .digestsize = SHA1_DIGEST_SIZE,
53 .init = sha1_base_init,
54 .update = sha1_update_arm,
55 .final = sha1_final,
56 .finup = sha1_finup_arm,
57 .descsize = sizeof(struct sha1_state),
58 .base = {
59 .cra_name = "sha1",
60 .cra_driver_name= "sha1-asm",
61 .cra_priority = 150,
62 .cra_blocksize = SHA1_BLOCK_SIZE,
63 .cra_module = THIS_MODULE,
64 }
65 };
66
67
68 static int __init sha1_mod_init(void)
69 {
70 return crypto_register_shash(&alg);
71 }
72
73
74 static void __exit sha1_mod_fini(void)
75 {
76 crypto_unregister_shash(&alg);
77 }
78
79
80 module_init(sha1_mod_init);
81 module_exit(sha1_mod_fini);
82
83 MODULE_LICENSE("GPL");
84 MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm (ARM)");
85 MODULE_ALIAS_CRYPTO("sha1");
86 MODULE_AUTHOR("David McCullough <ucdevel@gmail.com>");
87
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