From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/crypto/twofish_common.c | 23 +++--------------------
1 files changed, 3 insertions(+), 20 deletions(-)
diff --git a/kernel/crypto/twofish_common.c b/kernel/crypto/twofish_common.c
index f3a0dd2..d23fa53 100644
--- a/kernel/crypto/twofish_common.c
+++ b/kernel/crypto/twofish_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Common Twofish algorithm parts shared between the c and assembler
* implementations
@@ -12,20 +13,6 @@
* 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, see <http://www.gnu.org/licenses/>.
- *
*
* This code is a "clean room" implementation, written from the paper
* _Twofish: A 128-Bit Block Cipher_ by Bruce Schneier, John Kelsey,
@@ -580,7 +567,7 @@
/* Perform the key setup. */
int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key,
- unsigned int key_len, u32 *flags)
+ unsigned int key_len)
{
int i, j, k;
@@ -597,10 +584,7 @@
/* Check key length. */
if (key_len % 8)
- {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
return -EINVAL; /* unsupported key length */
- }
/* Compute the first two words of the S vector. The magic numbers are
* the entries of the RS matrix, preprocessed through poly_to_exp. The
@@ -701,8 +685,7 @@
int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len)
{
- return __twofish_setkey(crypto_tfm_ctx(tfm), key, key_len,
- &tfm->crt_flags);
+ return __twofish_setkey(crypto_tfm_ctx(tfm), key, key_len);
}
EXPORT_SYMBOL_GPL(twofish_setkey);
--
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