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authorJussi Kivilinna <jussi.kivilinna@mbnet.fi>2011-11-09 18:26:36 +0400
committerHerbert Xu <herbert@gondor.apana.org.au>2011-11-21 12:13:24 +0400
commit18482053f92b099663bd36a10e8f6bd2c8544669 (patch)
tree5747eb47b1b0ffa59d4ad5c2402021e3b4544a1f /include/crypto
parent251496dbfc1be38bc43b49651f3d33c02faccc47 (diff)
downloadlinux-18482053f92b099663bd36a10e8f6bd2c8544669.tar.xz
crypto: serpent-sse2 - add lrw support
Patch adds LRW support for serpent-sse2 by using lrw_crypt(). Patch has been tested with tcrypt and automated filesystem tests. Tcrypt benchmarks results (serpent-sse2/serpent_generic speed ratios): Benchmark results with tcrypt: Intel Celeron T1600 (x86_64) (fam:6, model:15, step:13): size lrw-enc lrw-dec 16B 1.00x 0.96x 64B 1.01x 1.01x 256B 3.01x 2.97x 1024B 3.39x 3.33x 8192B 3.35x 3.33x AMD Phenom II 1055T (x86_64) (fam:16, model:10): size lrw-enc lrw-dec 16B 0.98x 1.03x 64B 1.01x 1.04x 256B 2.10x 2.14x 1024B 2.28x 2.33x 8192B 2.30x 2.33x Intel Atom N270 (i586): size lrw-enc lrw-dec 16B 0.97x 0.97x 64B 1.47x 1.50x 256B 1.72x 1.69x 1024B 1.88x 1.81x 8192B 1.84x 1.79x Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
-rw-r--r--include/crypto/serpent.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/crypto/serpent.h b/include/crypto/serpent.h
index 40df885f9d1f..b7e0941eb6fc 100644
--- a/include/crypto/serpent.h
+++ b/include/crypto/serpent.h
@@ -17,6 +17,8 @@ struct serpent_ctx {
u32 expkey[SERPENT_EXPKEY_WORDS];
};
+int __serpent_setkey(struct serpent_ctx *ctx, const u8 *key,
+ unsigned int keylen);
int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);
void __serpent_encrypt(struct serpent_ctx *ctx, u8 *dst, const u8 *src);