Release 4.18 arch/x86/crypto/serpent_sse2_glue.c
/*
* Glue Code for SSE2 assembler versions of Serpent Cipher
*
* Copyright (c) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
*
* Glue code based on aesni-intel_glue.c by:
* Copyright (C) 2008, Intel Corp.
* Author: Huang Ying <ying.huang@intel.com>
*
* CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by:
* Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
* CTR part based on code (crypto/ctr.c) by:
* (C) Copyright IBM Corp. 2007 - Joy Latten <latten@us.ibm.com>
*
* 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
*
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <crypto/algapi.h>
#include <crypto/b128ops.h>
#include <crypto/internal/simd.h>
#include <crypto/serpent.h>
#include <asm/crypto/serpent-sse2.h>
#include <asm/crypto/glue_helper.h>
static int serpent_setkey_skcipher(struct crypto_skcipher *tfm,
const u8 *key, unsigned int keylen)
{
return __serpent_setkey(crypto_skcipher_ctx(tfm), key, keylen);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Biggers | 33 | 100.00% | 1 | 100.00% |
| Total | 33 | 100.00% | 1 | 100.00% |
static void serpent_decrypt_cbc_xway(void *ctx, u128 *dst, const u128 *src)
{
u128 ivs[SERPENT_PARALLEL_BLOCKS - 1];
unsigned int j;
for (j = 0; j < SERPENT_PARALLEL_BLOCKS - 1; j++)
ivs[j] = src[j];
serpent_dec_blk_xway(ctx, (u8 *)dst, (u8 *)src);
for (j = 0; j < SERPENT_PARALLEL_BLOCKS - 1; j++)
u128_xor(dst + (j + 1), dst + (j + 1), ivs + j);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 111 | 100.00% | 1 | 100.00% |
| Total | 111 | 100.00% | 1 | 100.00% |
static void serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
{
be128 ctrblk;
le128_to_be128(&ctrblk, iv);
le128_inc(iv);
__serpent_encrypt(ctx, (u8 *)&ctrblk, (u8 *)&ctrblk);
u128_xor(dst, src, (u128 *)&ctrblk);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 72 | 100.00% | 2 | 100.00% |
| Total | 72 | 100.00% | 2 | 100.00% |
static void serpent_crypt_ctr_xway(void *ctx, u128 *dst, const u128 *src,
le128 *iv)
{
be128 ctrblks[SERPENT_PARALLEL_BLOCKS];
unsigned int i;
for (i = 0; i < SERPENT_PARALLEL_BLOCKS; i++) {
if (dst != src)
dst[i] = src[i];
le128_to_be128(&ctrblks[i], iv);
le128_inc(iv);
}
serpent_enc_blk_xway_xor(ctx, (u8 *)dst, (u8 *)ctrblks);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 97 | 100.00% | 2 | 100.00% |
| Total | 97 | 100.00% | 2 | 100.00% |
static const struct common_glue_ctx serpent_enc = {
.num_funcs = 2,
.fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
.fn_u = { .ecb = GLUE_FUNC_CAST(serpent_enc_blk_xway) }
}, {
.num_blocks = 1,
.fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_encrypt) }
} }
};
static const struct common_glue_ctx serpent_ctr = {
.num_funcs = 2,
.fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_crypt_ctr_xway) }
}, {
.num_blocks = 1,
.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_crypt_ctr) }
} }
};
static const struct common_glue_ctx serpent_dec = {
.num_funcs = 2,
.fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
.fn_u = { .ecb = GLUE_FUNC_CAST(serpent_dec_blk_xway) }
}, {
.num_blocks = 1,
.fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_decrypt) }
} }
};
static const struct common_glue_ctx serpent_dec_cbc = {
.num_funcs = 2,
.fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(serpent_decrypt_cbc_xway) }
}, {
.num_blocks = 1,
.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(__serpent_decrypt) }
} }
};
static int ecb_encrypt(struct skcipher_request *req)
{
return glue_ecb_req_128bit(&serpent_enc, req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 16 | 80.00% | 1 | 50.00% |
| Eric Biggers | 4 | 20.00% | 1 | 50.00% |
| Total | 20 | 100.00% | 2 | 100.00% |
static int ecb_decrypt(struct skcipher_request *req)
{
return glue_ecb_req_128bit(&serpent_dec, req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 16 | 80.00% | 1 | 50.00% |
| Eric Biggers | 4 | 20.00% | 1 | 50.00% |
| Total | 20 | 100.00% | 2 | 100.00% |
static int cbc_encrypt(struct skcipher_request *req)
{
return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(__serpent_encrypt),
req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 18 | 81.82% | 1 | 50.00% |
| Eric Biggers | 4 | 18.18% | 1 | 50.00% |
| Total | 22 | 100.00% | 2 | 100.00% |
static int cbc_decrypt(struct skcipher_request *req)
{
return glue_cbc_decrypt_req_128bit(&serpent_dec_cbc, req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 16 | 80.00% | 1 | 50.00% |
| Eric Biggers | 4 | 20.00% | 1 | 50.00% |
| Total | 20 | 100.00% | 2 | 100.00% |
static int ctr_crypt(struct skcipher_request *req)
{
return glue_ctr_req_128bit(&serpent_ctr, req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 16 | 80.00% | 1 | 50.00% |
| Eric Biggers | 4 | 20.00% | 1 | 50.00% |
| Total | 20 | 100.00% | 2 | 100.00% |
static struct skcipher_alg serpent_algs[] = {
{
.base.cra_name = "__ecb(serpent)",
.base.cra_driver_name = "__ecb-serpent-sse2",
.base.cra_priority = 400,
.base.cra_flags = CRYPTO_ALG_INTERNAL,
.base.cra_blocksize = SERPENT_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct serpent_ctx),
.base.cra_module = THIS_MODULE,
.min_keysize = SERPENT_MIN_KEY_SIZE,
.max_keysize = SERPENT_MAX_KEY_SIZE,
.setkey = serpent_setkey_skcipher,
.encrypt = ecb_encrypt,
.decrypt = ecb_decrypt,
}, {
.base.cra_name = "__cbc(serpent)",
.base.cra_driver_name = "__cbc-serpent-sse2",
.base.cra_priority = 400,
.base.cra_flags = CRYPTO_ALG_INTERNAL,
.base.cra_blocksize = SERPENT_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct serpent_ctx),
.base.cra_module = THIS_MODULE,
.min_keysize = SERPENT_MIN_KEY_SIZE,
.max_keysize = SERPENT_MAX_KEY_SIZE,
.ivsize = SERPENT_BLOCK_SIZE,
.setkey = serpent_setkey_skcipher,
.encrypt = cbc_encrypt,
.decrypt = cbc_decrypt,
}, {
.base.cra_name = "__ctr(serpent)",
.base.cra_driver_name = "__ctr-serpent-sse2",
.base.cra_priority = 400,
.base.cra_flags = CRYPTO_ALG_INTERNAL,
.base.cra_blocksize = 1,
.base.cra_ctxsize = sizeof(struct serpent_ctx),
.base.cra_module = THIS_MODULE,
.min_keysize = SERPENT_MIN_KEY_SIZE,
.max_keysize = SERPENT_MAX_KEY_SIZE,
.ivsize = SERPENT_BLOCK_SIZE,
.chunksize = SERPENT_BLOCK_SIZE,
.setkey = serpent_setkey_skcipher,
.encrypt = ctr_crypt,
.decrypt = ctr_crypt,
},
};
static struct simd_skcipher_alg *serpent_simd_algs[ARRAY_SIZE(serpent_algs)];
static int __init serpent_sse2_init(void)
{
if (!boot_cpu_has(X86_FEATURE_XMM2)) {
printk(KERN_INFO "SSE2 instructions are not detected.\n");
return -ENODEV;
}
return simd_register_skciphers_compat(serpent_algs,
ARRAY_SIZE(serpent_algs),
serpent_simd_algs);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 35 | 83.33% | 2 | 50.00% |
| Borislav Petkov | 4 | 9.52% | 1 | 25.00% |
| Eric Biggers | 3 | 7.14% | 1 | 25.00% |
| Total | 42 | 100.00% | 4 | 100.00% |
static void __exit serpent_sse2_exit(void)
{
simd_unregister_skciphers(serpent_algs, ARRAY_SIZE(serpent_algs),
serpent_simd_algs);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 18 | 85.71% | 3 | 75.00% |
| Eric Biggers | 3 | 14.29% | 1 | 25.00% |
| Total | 21 | 100.00% | 4 | 100.00% |
module_init(serpent_sse2_init);
module_exit(serpent_sse2_exit);
MODULE_DESCRIPTION("Serpent Cipher Algorithm, SSE2 optimized");
MODULE_LICENSE("GPL");
MODULE_ALIAS_CRYPTO("serpent");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 888 | 83.69% | 8 | 61.54% |
| Eric Biggers | 167 | 15.74% | 2 | 15.38% |
| Borislav Petkov | 4 | 0.38% | 1 | 7.69% |
| Stephan Mueller | 1 | 0.09% | 1 | 7.69% |
| Kees Cook | 1 | 0.09% | 1 | 7.69% |
| Total | 1061 | 100.00% | 13 | 100.00% |
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