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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 /arch/x86/include/asm/crypto | |
| parent | cf1521a1a5e21fd1e79a458605c4282fbfbbeee2 (diff) | |
| download | linux-56d76c96a9f3e39ab733c5643b3ce5a1d4be242a.tar.bz2 | |
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 'arch/x86/include/asm/crypto')
| -rw-r--r-- | arch/x86/include/asm/crypto/serpent-avx.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/x86/include/asm/crypto/serpent-avx.h b/arch/x86/include/asm/crypto/serpent-avx.h index 56e79cc57eaf..33c2b8a435da 100644 --- a/arch/x86/include/asm/crypto/serpent-avx.h +++ b/arch/x86/include/asm/crypto/serpent-avx.h @@ -6,6 +6,16 @@ #define SERPENT_PARALLEL_BLOCKS 8 +struct serpent_lrw_ctx { + struct lrw_table_ctx lrw_table; + struct serpent_ctx serpent_ctx; +}; + +struct serpent_xts_ctx { + struct serpent_ctx tweak_ctx; + struct serpent_ctx crypt_ctx; +}; + asmlinkage void serpent_ecb_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst, const u8 *src); asmlinkage void serpent_ecb_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst, @@ -21,4 +31,18 @@ asmlinkage void serpent_xts_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst, asmlinkage void serpent_xts_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst, const u8 *src, le128 *iv); +extern void __serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, + le128 *iv); + +extern void serpent_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv); +extern void serpent_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv); + +extern int lrw_serpent_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen); + +extern void lrw_serpent_exit_tfm(struct crypto_tfm *tfm); + +extern int xts_serpent_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen); + #endif |