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authorJussi Kivilinna <jussi.kivilinna@iki.fi>2013-04-13 13:46:55 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2013-04-25 21:09:07 +0800
commit56d76c96a9f3e39ab733c5643b3ce5a1d4be242a (patch)
tree7922fedc46cba8320671d4eefebf7a4f27adcc77 /crypto
parentcf1521a1a5e21fd1e79a458605c4282fbfbbeee2 (diff)
downloadvexpress-lsk-56d76c96a9f3e39ab733c5643b3ce5a1d4be242a.tar.gz
crypto: serpent - add AVX2/x86_64 assembler implementation of serpent cipher
Patch adds AVX2/x86-64 implementation of Serpent cipher, requiring 16 parallel blocks for input (256 bytes). Implementation is based on the AVX implementation and extends to use the 256-bit wide YMM registers. Since serpent does not use table look-ups, this implementation should be close to two times faster than the AVX implementation. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig23
-rw-r--r--crypto/testmgr.c15
2 files changed, 38 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 1ba48ddd4da..9ad3d78c107 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1131,6 +1131,29 @@ config CRYPTO_SERPENT_AVX_X86_64
See also:
<http://www.cl.cam.ac.uk/~rja14/serpent.html>
+config CRYPTO_SERPENT_AVX2_X86_64
+ tristate "Serpent cipher algorithm (x86_64/AVX2)"
+ depends on X86 && 64BIT
+ select CRYPTO_ALGAPI
+ select CRYPTO_CRYPTD
+ select CRYPTO_ABLK_HELPER_X86
+ select CRYPTO_GLUE_HELPER_X86
+ select CRYPTO_SERPENT
+ select CRYPTO_SERPENT_AVX_X86_64
+ select CRYPTO_LRW
+ select CRYPTO_XTS
+ help
+ Serpent cipher algorithm, by Anderson, Biham & Knudsen.
+
+ Keys are allowed to be from 0 to 256 bits in length, in steps
+ of 8 bits.
+
+ This module provides Serpent cipher algorithm that processes 16
+ blocks parallel using AVX2 instruction set.
+
+ See also:
+ <http://www.cl.cam.ac.uk/~rja14/serpent.html>
+
config CRYPTO_TEA
tristate "TEA, XTEA and XETA cipher algorithms"
select CRYPTO_ALGAPI
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index fea7841dd6f..f5e13dea8cc 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -1645,6 +1645,9 @@ static const struct alg_test_desc alg_test_descs[] = {
.alg = "__cbc-serpent-avx",
.test = alg_test_null,
}, {
+ .alg = "__cbc-serpent-avx2",
+ .test = alg_test_null,
+ }, {
.alg = "__cbc-serpent-sse2",
.test = alg_test_null,
}, {
@@ -1673,6 +1676,9 @@ static const struct alg_test_desc alg_test_descs[] = {
.alg = "__driver-cbc-serpent-avx",
.test = alg_test_null,
}, {
+ .alg = "__driver-cbc-serpent-avx2",
+ .test = alg_test_null,
+ }, {
.alg = "__driver-cbc-serpent-sse2",
.test = alg_test_null,
}, {
@@ -1701,6 +1707,9 @@ static const struct alg_test_desc alg_test_descs[] = {
.alg = "__driver-ecb-serpent-avx",
.test = alg_test_null,
}, {
+ .alg = "__driver-ecb-serpent-avx2",
+ .test = alg_test_null,
+ }, {
.alg = "__driver-ecb-serpent-sse2",
.test = alg_test_null,
}, {
@@ -1969,6 +1978,9 @@ static const struct alg_test_desc alg_test_descs[] = {
.alg = "cryptd(__driver-cbc-camellia-aesni)",
.test = alg_test_null,
}, {
+ .alg = "cryptd(__driver-cbc-serpent-avx2)",
+ .test = alg_test_null,
+ }, {
.alg = "cryptd(__driver-ecb-aes-aesni)",
.test = alg_test_null,
.fips_allowed = 1,
@@ -1988,6 +2000,9 @@ static const struct alg_test_desc alg_test_descs[] = {
.alg = "cryptd(__driver-ecb-serpent-avx)",
.test = alg_test_null,
}, {
+ .alg = "cryptd(__driver-ecb-serpent-avx2)",
+ .test = alg_test_null,
+ }, {
.alg = "cryptd(__driver-ecb-serpent-sse2)",
.test = alg_test_null,
}, {