Linux 4.13.16
[linux/fpc-iii.git] / arch / arm64 / crypto / sha512-glue.c
blobaff35c9992a438d16edb8e7ff053c799c3fa42f2
1 /*
2 * Linux/arm64 port of the OpenSSL SHA512 implementation for AArch64
4 * Copyright (c) 2016 Linaro Ltd. <ard.biesheuvel@linaro.org>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or (at your option)
9 * any later version.
13 #include <crypto/internal/hash.h>
14 #include <linux/cryptohash.h>
15 #include <linux/types.h>
16 #include <linux/string.h>
17 #include <crypto/sha.h>
18 #include <crypto/sha512_base.h>
19 #include <asm/neon.h>
21 MODULE_DESCRIPTION("SHA-384/SHA-512 secure hash for arm64");
22 MODULE_AUTHOR("Andy Polyakov <appro@openssl.org>");
23 MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
24 MODULE_LICENSE("GPL v2");
25 MODULE_ALIAS_CRYPTO("sha384");
26 MODULE_ALIAS_CRYPTO("sha512");
28 asmlinkage void sha512_block_data_order(u32 *digest, const void *data,
29 unsigned int num_blks);
31 static int sha512_update(struct shash_desc *desc, const u8 *data,
32 unsigned int len)
34 return sha512_base_do_update(desc, data, len,
35 (sha512_block_fn *)sha512_block_data_order);
38 static int sha512_finup(struct shash_desc *desc, const u8 *data,
39 unsigned int len, u8 *out)
41 if (len)
42 sha512_base_do_update(desc, data, len,
43 (sha512_block_fn *)sha512_block_data_order);
44 sha512_base_do_finalize(desc,
45 (sha512_block_fn *)sha512_block_data_order);
47 return sha512_base_finish(desc, out);
50 static int sha512_final(struct shash_desc *desc, u8 *out)
52 return sha512_finup(desc, NULL, 0, out);
55 static struct shash_alg algs[] = { {
56 .digestsize = SHA512_DIGEST_SIZE,
57 .init = sha512_base_init,
58 .update = sha512_update,
59 .final = sha512_final,
60 .finup = sha512_finup,
61 .descsize = sizeof(struct sha512_state),
62 .base.cra_name = "sha512",
63 .base.cra_driver_name = "sha512-arm64",
64 .base.cra_priority = 150,
65 .base.cra_flags = CRYPTO_ALG_TYPE_SHASH,
66 .base.cra_blocksize = SHA512_BLOCK_SIZE,
67 .base.cra_module = THIS_MODULE,
68 }, {
69 .digestsize = SHA384_DIGEST_SIZE,
70 .init = sha384_base_init,
71 .update = sha512_update,
72 .final = sha512_final,
73 .finup = sha512_finup,
74 .descsize = sizeof(struct sha512_state),
75 .base.cra_name = "sha384",
76 .base.cra_driver_name = "sha384-arm64",
77 .base.cra_priority = 150,
78 .base.cra_flags = CRYPTO_ALG_TYPE_SHASH,
79 .base.cra_blocksize = SHA384_BLOCK_SIZE,
80 .base.cra_module = THIS_MODULE,
81 } };
83 static int __init sha512_mod_init(void)
85 return crypto_register_shashes(algs, ARRAY_SIZE(algs));
88 static void __exit sha512_mod_fini(void)
90 crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
93 module_init(sha512_mod_init);
94 module_exit(sha512_mod_fini);