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| author | Jussi Kivilinna <jussi.kivilinna@mbnet.fi> | 2011-11-09 16:26:36 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2011-11-21 16:13:24 +0800 |
| commit | 18482053f92b099663bd36a10e8f6bd2c8544669 (patch) | |
| tree | 5747eb47b1b0ffa59d4ad5c2402021e3b4544a1f /crypto/serpent.c | |
| parent | 251496dbfc1be38bc43b49651f3d33c02faccc47 (diff) | |
| download | lwn-18482053f92b099663bd36a10e8f6bd2c8544669.tar.gz lwn-18482053f92b099663bd36a10e8f6bd2c8544669.zip | |
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 'crypto/serpent.c')
| -rw-r--r-- | crypto/serpent.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/crypto/serpent.c b/crypto/serpent.c index eb6163041b08..7cc2caeb88a5 100644 --- a/crypto/serpent.c +++ b/crypto/serpent.c @@ -206,9 +206,9 @@ x1 ^= x4; x3 ^= x4; x4 &= x0; \ x4 ^= x2; -int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) +int __serpent_setkey(struct serpent_ctx *ctx, const u8 *key, + unsigned int keylen) { - struct serpent_ctx *ctx = crypto_tfm_ctx(tfm); u32 *k = ctx->expkey; u8 *k8 = (u8 *)k; u32 r0,r1,r2,r3,r4; @@ -349,6 +349,12 @@ int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) return 0; } +EXPORT_SYMBOL_GPL(__serpent_setkey); + +int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) +{ + return __serpent_setkey(crypto_tfm_ctx(tfm), key, keylen); +} EXPORT_SYMBOL_GPL(serpent_setkey); void __serpent_encrypt(struct serpent_ctx *ctx, u8 *dst, const u8 *src) |