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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2015-04-18 17:41:34 +0300 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2015-04-18 17:41:34 +0300 |
| commit | 305cc878d395475c46b4ef52f4764bd0c85bf8ac (patch) | |
| tree | fd146e81575e8b0e68ddc51237c7acb00df79c0b /src | |
| parent | fe38d3815b4cd203cd529949e244aca80d32897f (diff) | |
| download | libgcrypt-305cc878d395475c46b4ef52f4764bd0c85bf8ac.tar.gz | |
Add OCB bulk crypt/auth functions for AES/AES-NI
* cipher/cipher-internal.h (gcry_cipher_handle): Add bulk.ocb_crypt
and bulk.ocb_auth.
(_gcry_cipher_ocb_get_l): New prototype.
* cipher/cipher-ocb.c (get_l): Rename to ...
(_gcry_cipher_ocb_get_l): ... this.
(_gcry_cipher_ocb_authenticate, ocb_crypt): Use bulk function when
available.
* cipher/cipher.c (_gcry_cipher_open_internal): Setup OCB bulk
functions for AES.
* cipher/rijndael-aesni.c (get_l, aesni_ocb_enc, aes_ocb_dec)
(_gcry_aes_aesni_ocb_crypt, _gcry_aes_aesni_ocb_auth): New.
* cipher/rijndael.c [USE_AESNI] (_gcry_aes_aesni_ocb_crypt)
(_gcry_aes_aesni_ocb_auth): New prototypes.
(_gcry_aes_ocb_crypt, _gcry_aes_ocb_auth): New.
* src/cipher.h (_gcry_aes_ocb_crypt, _gcry_aes_ocb_auth): New
prototypes.
* tests/basic.c (check_ocb_cipher_largebuf): New.
(check_ocb_cipher): Add large buffer encryption/decryption test.
--
Patch adds bulk encryption/decryption/authentication code for AES-NI
accelerated AES.
Benchmark on Intel i5-4570 (3200 Mhz, turbo off):
Before:
AES | nanosecs/byte mebibytes/sec cycles/byte
OCB enc | 2.12 ns/B 449.7 MiB/s 6.79 c/B
OCB dec | 2.12 ns/B 449.6 MiB/s 6.79 c/B
OCB auth | 2.07 ns/B 459.9 MiB/s 6.64 c/B
After:
AES | nanosecs/byte mebibytes/sec cycles/byte
OCB enc | 0.292 ns/B 3262.5 MiB/s 0.935 c/B
OCB dec | 0.297 ns/B 3212.2 MiB/s 0.950 c/B
OCB auth | 0.260 ns/B 3666.1 MiB/s 0.832 c/B
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'src')
| -rw-r--r-- | src/cipher.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/cipher.h b/src/cipher.h index f4f6cc4c..7ad0b2cd 100644 --- a/src/cipher.h +++ b/src/cipher.h @@ -135,6 +135,10 @@ void _gcry_aes_cbc_dec (void *context, unsigned char *iv, void _gcry_aes_ctr_enc (void *context, unsigned char *ctr, void *outbuf_arg, const void *inbuf_arg, size_t nblocks); +void _gcry_aes_ocb_crypt (gcry_cipher_hd_t c, void *outbuf_arg, + const void *inbuf_arg, size_t nblocks, int encrypt); +void _gcry_aes_ocb_auth (gcry_cipher_hd_t c, const void *abuf_arg, + size_t nblocks); /*-- blowfish.c --*/ void _gcry_blowfish_cfb_dec (void *context, unsigned char *iv, |