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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-04-13 13:46:55 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-04-25 21:09:07 +0800 |
| commit | 56d76c96a9f3e39ab733c5643b3ce5a1d4be242a (patch) | |
| tree | 7922fedc46cba8320671d4eefebf7a4f27adcc77 /crypto | |
| parent | cf1521a1a5e21fd1e79a458605c4282fbfbbeee2 (diff) | |
| download | linux-rt-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/Kconfig | 23 | ||||
| -rw-r--r-- | crypto/testmgr.c | 15 |
2 files changed, 38 insertions, 0 deletions
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: <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 fea7841dd6f3..f5e13dea8cc9 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, }, { |