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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-05-23 14:15:51 +0300 |
|---|---|---|
| committer | Werner Koch <wk@gnupg.org> | 2013-05-23 17:35:05 +0200 |
| commit | 6deb0ccdf718a0670f80e6762a3842caf76437d6 (patch) | |
| tree | 5bf7f4bb2de2049de8eb0a9d6ce6d2ce43f93a40 /src/cipher.h | |
| parent | b60f06f70227c1e69e1010da8b47ea51ade48145 (diff) | |
| download | libgcrypt-6deb0ccdf718a0670f80e6762a3842caf76437d6.tar.gz | |
serpent: add parallel processing for CFB decryption
* cipher/cipher.c (gcry_cipher_open): Add bulf CFB decryption function
for Serpent.
* cipher/serpent-sse2-amd64.S (_gcry_serpent_sse2_cfb_dec): New
function.
* cipher/serpent.c (_gcry_serpent_sse2_cfb_dec): New prototype.
(_gcry_serpent_cfb_dec) New function.
(selftest_cfb_128) New function.
(selftest) Call selftest_cfb_128.
* src/cipher.h (_gcry_serpent_cfb_dec): New prototype.
--
Patch makes Serpent-CFB decryption 4.0 times faster on Intel Sandy-Bridge and
2.7 times faster on AMD K10.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'src/cipher.h')
| -rw-r--r-- | src/cipher.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cipher.h b/src/cipher.h index f28990d4..9d6cc015 100644 --- a/src/cipher.h +++ b/src/cipher.h @@ -113,6 +113,9 @@ void _gcry_serpent_ctr_enc (void *context, unsigned char *ctr, void _gcry_serpent_cbc_dec (void *context, unsigned char *iv, void *outbuf_arg, const void *inbuf_arg, unsigned int nblocks); +void _gcry_serpent_cfb_dec (void *context, unsigned char *iv, + void *outbuf_arg, const void *inbuf_arg, + unsigned int nblocks); /*-- dsa.c --*/ void _gcry_register_pk_dsa_progress (gcry_handler_progress_t cbc, void *cb_data); |