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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-04-13 13:46:50 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-04-25 21:09:05 +0800 |
| commit | cf1521a1a5e21fd1e79a458605c4282fbfbbeee2 (patch) | |
| tree | a7c1fb6d047c75170ddadd0dffe40055167e9c02 /crypto | |
| parent | 604880107010a1e5794552d184cd5471ea31b973 (diff) | |
| download | lwn-cf1521a1a5e21fd1e79a458605c4282fbfbbeee2.tar.gz lwn-cf1521a1a5e21fd1e79a458605c4282fbfbbeee2.zip | |
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 <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/Kconfig | 24 | ||||
| -rw-r--r-- | crypto/testmgr.c | 12 |
2 files changed, 36 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index 6b9564f91168..1ba48ddd4da1 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -1250,6 +1250,30 @@ config CRYPTO_TWOFISH_AVX_X86_64 See also: <http://www.schneier.com/twofish.html> +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: + <http://www.schneier.com/twofish.html> + comment "Compression" config CRYPTO_DEFLATE diff --git a/crypto/testmgr.c b/crypto/testmgr.c index f3effb42531e..fea7841dd6f3 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -1651,6 +1651,9 @@ 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, .fips_allowed = 1, @@ -1676,6 +1679,9 @@ 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, .fips_allowed = 1, @@ -1701,6 +1707,9 @@ 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, .fips_allowed = 1, @@ -1985,6 +1994,9 @@ 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, .fips_allowed = 1, |