From cf1521a1a5e21fd1e79a458605c4282fbfbbeee2 Mon Sep 17 00:00:00 2001 From: Jussi Kivilinna Date: Sat, 13 Apr 2013 13:46:50 +0300 Subject: crypto: twofish - add AVX2/x86_64 assembler implementation of twofish cipher Patch adds AVX2/x86-64 implementation of Twofish cipher, requiring 16 parallel blocks for input (256 bytes). Table look-ups are performed using vpgatherdd instruction directly from vector registers and thus should be faster than earlier implementations. Implementation also uses 256-bit wide YMM registers, which should give additional speed up compared to the AVX implementation. Signed-off-by: Jussi Kivilinna Signed-off-by: Herbert Xu --- crypto/Kconfig | 24 ++++++++++++++++++++++++ crypto/testmgr.c | 12 ++++++++++++ 2 files changed, 36 insertions(+) (limited to 'crypto') diff --git a/crypto/Kconfig b/crypto/Kconfig index 6b9564f9116..1ba48ddd4da 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -1250,6 +1250,30 @@ config CRYPTO_TWOFISH_AVX_X86_64 See also: +config CRYPTO_TWOFISH_AVX2_X86_64 + tristate "Twofish 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_TWOFISH_COMMON + select CRYPTO_TWOFISH_X86_64 + select CRYPTO_TWOFISH_X86_64_3WAY + select CRYPTO_TWOFISH_AVX_X86_64 + select CRYPTO_LRW + select CRYPTO_XTS + help + Twofish cipher algorithm (x86_64/AVX2). + + Twofish was submitted as an AES (Advanced Encryption Standard) + candidate cipher by researchers at CounterPane Systems. It is a + 16 round block cipher supporting key sizes of 128, 192, and 256 + bits. + + See also: + + comment "Compression" config CRYPTO_DEFLATE diff --git a/crypto/testmgr.c b/crypto/testmgr.c index f3effb42531..fea7841dd6f 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -1650,6 +1650,9 @@ static const struct alg_test_desc alg_test_descs[] = { }, { .alg = "__cbc-twofish-avx", .test = alg_test_null, + }, { + .alg = "__cbc-twofish-avx2", + .test = alg_test_null, }, { .alg = "__driver-cbc-aes-aesni", .test = alg_test_null, @@ -1675,6 +1678,9 @@ static const struct alg_test_desc alg_test_descs[] = { }, { .alg = "__driver-cbc-twofish-avx", .test = alg_test_null, + }, { + .alg = "__driver-cbc-twofish-avx2", + .test = alg_test_null, }, { .alg = "__driver-ecb-aes-aesni", .test = alg_test_null, @@ -1700,6 +1706,9 @@ static const struct alg_test_desc alg_test_descs[] = { }, { .alg = "__driver-ecb-twofish-avx", .test = alg_test_null, + }, { + .alg = "__driver-ecb-twofish-avx2", + .test = alg_test_null, }, { .alg = "__ghash-pclmulqdqni", .test = alg_test_null, @@ -1984,6 +1993,9 @@ static const struct alg_test_desc alg_test_descs[] = { }, { .alg = "cryptd(__driver-ecb-twofish-avx)", .test = alg_test_null, + }, { + .alg = "cryptd(__driver-ecb-twofish-avx2)", + .test = alg_test_null, }, { .alg = "cryptd(__driver-gcm-aes-aesni)", .test = alg_test_null, -- cgit v1.2.3