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, block_fn: 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, block_fn: 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, block_fn: 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: &alg); |
71 | } |
72 | |
73 | |
74 | static void __exit sha1_mod_fini(void) |
75 | { |
76 | crypto_unregister_shash(alg: &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 | |