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| author | Matthias Schiffer <mschiffer@universe-factory.net> | 2012-09-15 06:01:11 +0200 |
|---|---|---|
| committer | Matthias Schiffer <mschiffer@universe-factory.net> | 2012-09-15 06:01:11 +0200 |
| commit | 37385fcd836bcc086b56b8dc7089d5038c203f13 (patch) | |
| tree | e4baf6ea1c24ebb8fbc93f02526acb56d186c606 /src/method_xsalsa20_poly1305.c | |
| parent | 430a8557d4421f41fbf834909f7598cfc64e3311 (diff) | |
| download | fastd-37385fcd836bcc086b56b8dc7089d5038c203f13.tar fastd-37385fcd836bcc086b56b8dc7089d5038c203f13.zip | |
Rework some parts of the AES128-GCM method
These changes improve the performance of the AES128-GCM method by ~10% on my
Intel CPU when compiled with -O2.
Furthermore, the AES and the GHASH parts are separated now, allowing to switch
to other implementations of the algorithms more easily.
Diffstat (limited to 'src/method_xsalsa20_poly1305.c')
| -rw-r--r-- | src/method_xsalsa20_poly1305.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/method_xsalsa20_poly1305.c b/src/method_xsalsa20_poly1305.c index c7fb040..23f4c5d 100644 --- a/src/method_xsalsa20_poly1305.c +++ b/src/method_xsalsa20_poly1305.c @@ -86,6 +86,10 @@ static size_t method_min_decrypt_head_space(fastd_context *ctx) { return (crypto_secretbox_xsalsa20poly1305_BOXZEROBYTES - NONCEBYTES); } +static size_t method_min_tail_space(fastd_context *ctx) { + return 0; +} + static fastd_method_session_state* method_session_init(fastd_context *ctx, uint8_t *secret, size_t length, bool initiator) { int i; @@ -220,6 +224,8 @@ const fastd_method fastd_method_xsalsa20_poly1305 = { .max_packet_size = method_max_packet_size, .min_encrypt_head_space = method_min_encrypt_head_space, .min_decrypt_head_space = method_min_decrypt_head_space, + .min_encrypt_tail_space = method_min_tail_space, + .min_decrypt_tail_space = method_min_tail_space, .session_init = method_session_init, .session_is_valid = method_session_is_valid, |