From 18482053f92b099663bd36a10e8f6bd2c8544669 Mon Sep 17 00:00:00 2001
From: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Date: Wed, 9 Nov 2011 16:26:36 +0200
Subject: 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>
---
include/crypto/serpent.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include/crypto')
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);
--
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