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Diffstat (limited to 'arch/x86/crypto/twofish_64.c')
-rw-r--r-- | arch/x86/crypto/twofish_64.c | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/arch/x86/crypto/twofish_64.c b/arch/x86/crypto/twofish_64.c deleted file mode 100644 index 182d91d5cfb9..000000000000 --- a/arch/x86/crypto/twofish_64.c +++ /dev/null | |||
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1 | /* | ||
2 | * Glue Code for optimized x86_64 assembler version of TWOFISH | ||
3 | * | ||
4 | * Originally Twofish for GPG | ||
5 | * By Matthew Skala <mskala@ansuz.sooke.bc.ca>, July 26, 1998 | ||
6 | * 256-bit key length added March 20, 1999 | ||
7 | * Some modifications to reduce the text size by Werner Koch, April, 1998 | ||
8 | * Ported to the kerneli patch by Marc Mutz <Marc@Mutz.com> | ||
9 | * Ported to CryptoAPI by Colin Slater <hoho@tacomeat.net> | ||
10 | * | ||
11 | * The original author has disclaimed all copyright interest in this | ||
12 | * code and thus put it in the public domain. The subsequent authors | ||
13 | * have put this under the GNU General Public License. | ||
14 | * | ||
15 | * This program is free software; you can redistribute it and/or modify | ||
16 | * it under the terms of the GNU General Public License as published by | ||
17 | * the Free Software Foundation; either version 2 of the License, or | ||
18 | * (at your option) any later version. | ||
19 | * | ||
20 | * This program is distributed in the hope that it will be useful, | ||
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
23 | * GNU General Public License for more details. | ||
24 | * | ||
25 | * You should have received a copy of the GNU General Public License | ||
26 | * along with this program; if not, write to the Free Software | ||
27 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | ||
28 | * USA | ||
29 | * | ||
30 | * This code is a "clean room" implementation, written from the paper | ||
31 | * _Twofish: A 128-Bit Block Cipher_ by Bruce Schneier, John Kelsey, | ||
32 | * Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson, available | ||
33 | * through http://www.counterpane.com/twofish.html | ||
34 | * | ||
35 | * For background information on multiplication in finite fields, used for | ||
36 | * the matrix operations in the key schedule, see the book _Contemporary | ||
37 | * Abstract Algebra_ by Joseph A. Gallian, especially chapter 22 in the | ||
38 | * Third Edition. | ||
39 | */ | ||
40 | |||
41 | #include <crypto/twofish.h> | ||
42 | #include <linux/crypto.h> | ||
43 | #include <linux/init.h> | ||
44 | #include <linux/kernel.h> | ||
45 | #include <linux/module.h> | ||
46 | #include <linux/types.h> | ||
47 | |||
48 | asmlinkage void twofish_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src); | ||
49 | asmlinkage void twofish_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src); | ||
50 | |||
51 | static void twofish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) | ||
52 | { | ||
53 | twofish_enc_blk(tfm, dst, src); | ||
54 | } | ||
55 | |||
56 | static void twofish_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) | ||
57 | { | ||
58 | twofish_dec_blk(tfm, dst, src); | ||
59 | } | ||
60 | |||
61 | static struct crypto_alg alg = { | ||
62 | .cra_name = "twofish", | ||
63 | .cra_driver_name = "twofish-x86_64", | ||
64 | .cra_priority = 200, | ||
65 | .cra_flags = CRYPTO_ALG_TYPE_CIPHER, | ||
66 | .cra_blocksize = TF_BLOCK_SIZE, | ||
67 | .cra_ctxsize = sizeof(struct twofish_ctx), | ||
68 | .cra_alignmask = 3, | ||
69 | .cra_module = THIS_MODULE, | ||
70 | .cra_list = LIST_HEAD_INIT(alg.cra_list), | ||
71 | .cra_u = { | ||
72 | .cipher = { | ||
73 | .cia_min_keysize = TF_MIN_KEY_SIZE, | ||
74 | .cia_max_keysize = TF_MAX_KEY_SIZE, | ||
75 | .cia_setkey = twofish_setkey, | ||
76 | .cia_encrypt = twofish_encrypt, | ||
77 | .cia_decrypt = twofish_decrypt | ||
78 | } | ||
79 | } | ||
80 | }; | ||
81 | |||
82 | static int __init init(void) | ||
83 | { | ||
84 | return crypto_register_alg(&alg); | ||
85 | } | ||
86 | |||
87 | static void __exit fini(void) | ||
88 | { | ||
89 | crypto_unregister_alg(&alg); | ||
90 | } | ||
91 | |||
92 | module_init(init); | ||
93 | module_exit(fini); | ||
94 | |||
95 | MODULE_LICENSE("GPL"); | ||
96 | MODULE_DESCRIPTION ("Twofish Cipher Algorithm, x86_64 asm optimized"); | ||
97 | MODULE_ALIAS("twofish"); | ||