1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Cryptographic API.
4*4882a593Smuzhiyun * Glue code for the SHA1 Secure Hash Algorithm assembler implementation
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * This file is based on sha1_generic.c and sha1_ssse3_glue.c
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun * Copyright (c) Alan Smithee.
9*4882a593Smuzhiyun * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
10*4882a593Smuzhiyun * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
11*4882a593Smuzhiyun * Copyright (c) Mathias Krause <minipli@googlemail.com>
12*4882a593Smuzhiyun */
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #include <crypto/internal/hash.h>
15*4882a593Smuzhiyun #include <linux/init.h>
16*4882a593Smuzhiyun #include <linux/module.h>
17*4882a593Smuzhiyun #include <linux/types.h>
18*4882a593Smuzhiyun #include <crypto/sha.h>
19*4882a593Smuzhiyun #include <crypto/sha1_base.h>
20*4882a593Smuzhiyun #include <asm/byteorder.h>
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #include "sha1.h"
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun asmlinkage void sha1_block_data_order(u32 *digest,
25*4882a593Smuzhiyun const unsigned char *data, unsigned int rounds);
26*4882a593Smuzhiyun
sha1_update_arm(struct shash_desc * desc,const u8 * data,unsigned int len)27*4882a593Smuzhiyun int sha1_update_arm(struct shash_desc *desc, const u8 *data,
28*4882a593Smuzhiyun unsigned int len)
29*4882a593Smuzhiyun {
30*4882a593Smuzhiyun /* make sure casting to sha1_block_fn() is safe */
31*4882a593Smuzhiyun BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun return sha1_base_do_update(desc, data, len,
34*4882a593Smuzhiyun (sha1_block_fn *)sha1_block_data_order);
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(sha1_update_arm);
37*4882a593Smuzhiyun
sha1_final(struct shash_desc * desc,u8 * out)38*4882a593Smuzhiyun static int sha1_final(struct shash_desc *desc, u8 *out)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_block_data_order);
41*4882a593Smuzhiyun return sha1_base_finish(desc, out);
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
sha1_finup_arm(struct shash_desc * desc,const u8 * data,unsigned int len,u8 * out)44*4882a593Smuzhiyun int sha1_finup_arm(struct shash_desc *desc, const u8 *data,
45*4882a593Smuzhiyun unsigned int len, u8 *out)
46*4882a593Smuzhiyun {
47*4882a593Smuzhiyun sha1_base_do_update(desc, data, len,
48*4882a593Smuzhiyun (sha1_block_fn *)sha1_block_data_order);
49*4882a593Smuzhiyun return sha1_final(desc, out);
50*4882a593Smuzhiyun }
51*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(sha1_finup_arm);
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun static struct shash_alg alg = {
54*4882a593Smuzhiyun .digestsize = SHA1_DIGEST_SIZE,
55*4882a593Smuzhiyun .init = sha1_base_init,
56*4882a593Smuzhiyun .update = sha1_update_arm,
57*4882a593Smuzhiyun .final = sha1_final,
58*4882a593Smuzhiyun .finup = sha1_finup_arm,
59*4882a593Smuzhiyun .descsize = sizeof(struct sha1_state),
60*4882a593Smuzhiyun .base = {
61*4882a593Smuzhiyun .cra_name = "sha1",
62*4882a593Smuzhiyun .cra_driver_name= "sha1-asm",
63*4882a593Smuzhiyun .cra_priority = 150,
64*4882a593Smuzhiyun .cra_blocksize = SHA1_BLOCK_SIZE,
65*4882a593Smuzhiyun .cra_module = THIS_MODULE,
66*4882a593Smuzhiyun }
67*4882a593Smuzhiyun };
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun
sha1_mod_init(void)70*4882a593Smuzhiyun static int __init sha1_mod_init(void)
71*4882a593Smuzhiyun {
72*4882a593Smuzhiyun return crypto_register_shash(&alg);
73*4882a593Smuzhiyun }
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun
sha1_mod_fini(void)76*4882a593Smuzhiyun static void __exit sha1_mod_fini(void)
77*4882a593Smuzhiyun {
78*4882a593Smuzhiyun crypto_unregister_shash(&alg);
79*4882a593Smuzhiyun }
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun module_init(sha1_mod_init);
83*4882a593Smuzhiyun module_exit(sha1_mod_fini);
84*4882a593Smuzhiyun
85*4882a593Smuzhiyun MODULE_LICENSE("GPL");
86*4882a593Smuzhiyun MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm (ARM)");
87*4882a593Smuzhiyun MODULE_ALIAS_CRYPTO("sha1");
88*4882a593Smuzhiyun MODULE_AUTHOR("David McCullough <ucdevel@gmail.com>");
89