From 56d76c96a9f3e39ab733c5643b3ce5a1d4be242a Mon Sep 17 00:00:00 2001 From: Jussi Kivilinna Date: Sat, 13 Apr 2013 13:46:55 +0300 Subject: 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 Signed-off-by: Herbert Xu --- crypto/Kconfig | 23 +++++++++++++++++++++++ crypto/testmgr.c | 15 +++++++++++++++ 2 files changed, 38 insertions(+) (limited to 'crypto') diff --git a/crypto/Kconfig b/crypto/Kconfig index 1ba48ddd4da1..9ad3d78c1075 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -1131,6 +1131,29 @@ config CRYPTO_SERPENT_AVX_X86_64 See also: +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: + + config CRYPTO_TEA tristate "TEA, XTEA and XETA cipher algorithms" select CRYPTO_ALGAPI diff --git a/crypto/testmgr.c b/crypto/testmgr.c index fea7841dd6f3..f5e13dea8cc9 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -1644,6 +1644,9 @@ 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, @@ -1672,6 +1675,9 @@ 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, @@ -1700,6 +1706,9 @@ 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, @@ -1968,6 +1977,9 @@ 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, @@ -1987,6 +1999,9 @@ 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, -- cgit v1.2.3-58-ga151