1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Glue code for the SHA1 Secure Hash Algorithm assembler implementation
6 * This file is based on sha1_generic.c and sha1_ssse3_glue.c
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>
14 #include <crypto/internal/hash.h>
15 #include <linux/init.h>
16 #include <linux/module.h>
17 #include <linux/types.h>
18 #include <crypto/sha.h>
19 #include <crypto/sha1_base.h>
20 #include <asm/byteorder.h>
24 asmlinkage void sha1_block_data_order(u32 *digest,
25 const unsigned char *data, unsigned int rounds);
27 int sha1_update_arm(struct shash_desc *desc, const u8 *data,
30 /* make sure casting to sha1_block_fn() is safe */
31 BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
33 return sha1_base_do_update(desc, data, len,
34 (sha1_block_fn *)sha1_block_data_order);
36 EXPORT_SYMBOL_GPL(sha1_update_arm);
38 static int sha1_final(struct shash_desc *desc, u8 *out)
40 sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_block_data_order);
41 return sha1_base_finish(desc, out);
44 int sha1_finup_arm(struct shash_desc *desc, const u8 *data,
45 unsigned int len, u8 *out)
47 sha1_base_do_update(desc, data, len,
48 (sha1_block_fn *)sha1_block_data_order);
49 return sha1_final(desc, out);
51 EXPORT_SYMBOL_GPL(sha1_finup_arm);
53 static struct shash_alg alg = {
54 .digestsize = SHA1_DIGEST_SIZE,
55 .init = sha1_base_init,
56 .update = sha1_update_arm,
58 .finup = sha1_finup_arm,
59 .descsize = sizeof(struct sha1_state),
62 .cra_driver_name= "sha1-asm",
64 .cra_blocksize = SHA1_BLOCK_SIZE,
65 .cra_module = THIS_MODULE,
70 static int __init sha1_mod_init(void)
72 return crypto_register_shash(&alg);
76 static void __exit sha1_mod_fini(void)
78 crypto_unregister_shash(&alg);
82 module_init(sha1_mod_init);
83 module_exit(sha1_mod_fini);
85 MODULE_LICENSE("GPL");
86 MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm (ARM)");
87 MODULE_ALIAS_CRYPTO("sha1");
88 MODULE_AUTHOR("David McCullough <ucdevel@gmail.com>");