From 6a273b2b46f9e57bd0bc1f4b905e28d2f947588d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 11 Oct 2007 11:11:41 +0200 Subject: i386: prepare shared crypto/twofish.c Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/i386/crypto/Makefile | 2 +- arch/i386/crypto/twofish.c | 97 ------------------------------------------- arch/i386/crypto/twofish_32.c | 97 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 98 insertions(+), 98 deletions(-) delete mode 100644 arch/i386/crypto/twofish.c create mode 100644 arch/i386/crypto/twofish_32.c (limited to 'arch/i386/crypto') diff --git a/arch/i386/crypto/Makefile b/arch/i386/crypto/Makefile index 3fd19af18e34..57fcb333c9c1 100644 --- a/arch/i386/crypto/Makefile +++ b/arch/i386/crypto/Makefile @@ -8,5 +8,5 @@ obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o obj-$(CONFIG_CRYPTO_TWOFISH_586) += twofish-i586.o aes-i586-y := aes-i586-asm.o aes.o -twofish-i586-y := twofish-i586-asm.o twofish.o +twofish-i586-y := twofish-i586-asm.o twofish_32.o diff --git a/arch/i386/crypto/twofish.c b/arch/i386/crypto/twofish.c deleted file mode 100644 index e3004dfe9c7a..000000000000 --- a/arch/i386/crypto/twofish.c +++ /dev/null @@ -1,97 +0,0 @@ -/* - * Glue Code for optimized 586 assembler version of TWOFISH - * - * Originally Twofish for GPG - * By Matthew Skala , July 26, 1998 - * 256-bit key length added March 20, 1999 - * Some modifications to reduce the text size by Werner Koch, April, 1998 - * Ported to the kerneli patch by Marc Mutz - * Ported to CryptoAPI by Colin Slater - * - * The original author has disclaimed all copyright interest in this - * code and thus put it in the public domain. The subsequent authors - * have put this under the GNU General Public License. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - * USA - * - * This code is a "clean room" implementation, written from the paper - * _Twofish: A 128-Bit Block Cipher_ by Bruce Schneier, John Kelsey, - * Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson, available - * through http://www.counterpane.com/twofish.html - * - * For background information on multiplication in finite fields, used for - * the matrix operations in the key schedule, see the book _Contemporary - * Abstract Algebra_ by Joseph A. Gallian, especially chapter 22 in the - * Third Edition. - */ - -#include -#include -#include -#include -#include - - -asmlinkage void twofish_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src); -asmlinkage void twofish_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src); - -static void twofish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) -{ - twofish_enc_blk(tfm, dst, src); -} - -static void twofish_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) -{ - twofish_dec_blk(tfm, dst, src); -} - -static struct crypto_alg alg = { - .cra_name = "twofish", - .cra_driver_name = "twofish-i586", - .cra_priority = 200, - .cra_flags = CRYPTO_ALG_TYPE_CIPHER, - .cra_blocksize = TF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct twofish_ctx), - .cra_alignmask = 3, - .cra_module = THIS_MODULE, - .cra_list = LIST_HEAD_INIT(alg.cra_list), - .cra_u = { - .cipher = { - .cia_min_keysize = TF_MIN_KEY_SIZE, - .cia_max_keysize = TF_MAX_KEY_SIZE, - .cia_setkey = twofish_setkey, - .cia_encrypt = twofish_encrypt, - .cia_decrypt = twofish_decrypt - } - } -}; - -static int __init init(void) -{ - return crypto_register_alg(&alg); -} - -static void __exit fini(void) -{ - crypto_unregister_alg(&alg); -} - -module_init(init); -module_exit(fini); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION ("Twofish Cipher Algorithm, i586 asm optimized"); -MODULE_ALIAS("twofish"); diff --git a/arch/i386/crypto/twofish_32.c b/arch/i386/crypto/twofish_32.c new file mode 100644 index 000000000000..e3004dfe9c7a --- /dev/null +++ b/arch/i386/crypto/twofish_32.c @@ -0,0 +1,97 @@ +/* + * Glue Code for optimized 586 assembler version of TWOFISH + * + * Originally Twofish for GPG + * By Matthew Skala , July 26, 1998 + * 256-bit key length added March 20, 1999 + * Some modifications to reduce the text size by Werner Koch, April, 1998 + * Ported to the kerneli patch by Marc Mutz + * Ported to CryptoAPI by Colin Slater + * + * The original author has disclaimed all copyright interest in this + * code and thus put it in the public domain. The subsequent authors + * have put this under the GNU General Public License. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + * This code is a "clean room" implementation, written from the paper + * _Twofish: A 128-Bit Block Cipher_ by Bruce Schneier, John Kelsey, + * Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson, available + * through http://www.counterpane.com/twofish.html + * + * For background information on multiplication in finite fields, used for + * the matrix operations in the key schedule, see the book _Contemporary + * Abstract Algebra_ by Joseph A. Gallian, especially chapter 22 in the + * Third Edition. + */ + +#include +#include +#include +#include +#include + + +asmlinkage void twofish_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src); +asmlinkage void twofish_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src); + +static void twofish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + twofish_enc_blk(tfm, dst, src); +} + +static void twofish_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + twofish_dec_blk(tfm, dst, src); +} + +static struct crypto_alg alg = { + .cra_name = "twofish", + .cra_driver_name = "twofish-i586", + .cra_priority = 200, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = TF_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct twofish_ctx), + .cra_alignmask = 3, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(alg.cra_list), + .cra_u = { + .cipher = { + .cia_min_keysize = TF_MIN_KEY_SIZE, + .cia_max_keysize = TF_MAX_KEY_SIZE, + .cia_setkey = twofish_setkey, + .cia_encrypt = twofish_encrypt, + .cia_decrypt = twofish_decrypt + } + } +}; + +static int __init init(void) +{ + return crypto_register_alg(&alg); +} + +static void __exit fini(void) +{ + crypto_unregister_alg(&alg); +} + +module_init(init); +module_exit(fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION ("Twofish Cipher Algorithm, i586 asm optimized"); +MODULE_ALIAS("twofish"); -- cgit v1.2.2