Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Johannes Goetzfried |
326 |
59.93% |
1 |
9.09% |
| Eric Biggers |
103 |
18.93% |
2 |
18.18% |
| Ard Biesheuvel |
85 |
15.62% |
1 |
9.09% |
| Ingo Molnar |
12 |
2.21% |
1 |
9.09% |
| Kees Cook |
7 |
1.29% |
2 |
18.18% |
| Jussi Kivilinna |
5 |
0.92% |
1 |
9.09% |
| Stephan Mueller |
2 |
0.37% |
1 |
9.09% |
| Thomas Gleixner |
2 |
0.37% |
1 |
9.09% |
| Dave Hansen |
2 |
0.37% |
1 |
9.09% |
| Total |
544 |
|
11 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Glue Code for the AVX assembler implementation of the Cast6 Cipher
*
* Copyright (C) 2012 Johannes Goetzfried
* <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
*
* Copyright © 2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <crypto/algapi.h>
#include <crypto/cast6.h>
#include <crypto/internal/simd.h>
#include "ecb_cbc_helpers.h"
#define CAST6_PARALLEL_BLOCKS 8
asmlinkage void cast6_ecb_enc_8way(const void *ctx, u8 *dst, const u8 *src);
asmlinkage void cast6_ecb_dec_8way(const void *ctx, u8 *dst, const u8 *src);
asmlinkage void cast6_cbc_dec_8way(const void *ctx, u8 *dst, const u8 *src);
static int cast6_setkey_skcipher(struct crypto_skcipher *tfm,
const u8 *key, unsigned int keylen)
{
return cast6_setkey(&tfm->base, key, keylen);
}
static int ecb_encrypt(struct skcipher_request *req)
{
ECB_WALK_START(req, CAST6_BLOCK_SIZE, CAST6_PARALLEL_BLOCKS);
ECB_BLOCK(CAST6_PARALLEL_BLOCKS, cast6_ecb_enc_8way);
ECB_BLOCK(1, __cast6_encrypt);
ECB_WALK_END();
}
static int ecb_decrypt(struct skcipher_request *req)
{
ECB_WALK_START(req, CAST6_BLOCK_SIZE, CAST6_PARALLEL_BLOCKS);
ECB_BLOCK(CAST6_PARALLEL_BLOCKS, cast6_ecb_dec_8way);
ECB_BLOCK(1, __cast6_decrypt);
ECB_WALK_END();
}
static int cbc_encrypt(struct skcipher_request *req)
{
CBC_WALK_START(req, CAST6_BLOCK_SIZE, -1);
CBC_ENC_BLOCK(__cast6_encrypt);
CBC_WALK_END();
}
static int cbc_decrypt(struct skcipher_request *req)
{
CBC_WALK_START(req, CAST6_BLOCK_SIZE, CAST6_PARALLEL_BLOCKS);
CBC_DEC_BLOCK(CAST6_PARALLEL_BLOCKS, cast6_cbc_dec_8way);
CBC_DEC_BLOCK(1, __cast6_decrypt);
CBC_WALK_END();
}
static struct skcipher_alg cast6_algs[] = {
{
.base.cra_name = "__ecb(cast6)",
.base.cra_driver_name = "__ecb-cast6-avx",
.base.cra_priority = 200,
.base.cra_flags = CRYPTO_ALG_INTERNAL,
.base.cra_blocksize = CAST6_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct cast6_ctx),
.base.cra_module = THIS_MODULE,
.min_keysize = CAST6_MIN_KEY_SIZE,
.max_keysize = CAST6_MAX_KEY_SIZE,
.setkey = cast6_setkey_skcipher,
.encrypt = ecb_encrypt,
.decrypt = ecb_decrypt,
}, {
.base.cra_name = "__cbc(cast6)",
.base.cra_driver_name = "__cbc-cast6-avx",
.base.cra_priority = 200,
.base.cra_flags = CRYPTO_ALG_INTERNAL,
.base.cra_blocksize = CAST6_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct cast6_ctx),
.base.cra_module = THIS_MODULE,
.min_keysize = CAST6_MIN_KEY_SIZE,
.max_keysize = CAST6_MAX_KEY_SIZE,
.ivsize = CAST6_BLOCK_SIZE,
.setkey = cast6_setkey_skcipher,
.encrypt = cbc_encrypt,
.decrypt = cbc_decrypt,
},
};
static struct simd_skcipher_alg *cast6_simd_algs[ARRAY_SIZE(cast6_algs)];
static int __init cast6_init(void)
{
const char *feature_name;
if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
&feature_name)) {
pr_info("CPU feature '%s' is not supported.\n", feature_name);
return -ENODEV;
}
return simd_register_skciphers_compat(cast6_algs,
ARRAY_SIZE(cast6_algs),
cast6_simd_algs);
}
static void __exit cast6_exit(void)
{
simd_unregister_skciphers(cast6_algs, ARRAY_SIZE(cast6_algs),
cast6_simd_algs);
}
module_init(cast6_init);
module_exit(cast6_exit);
MODULE_DESCRIPTION("Cast6 Cipher Algorithm, AVX optimized");
MODULE_LICENSE("GPL");
MODULE_ALIAS_CRYPTO("cast6");