Process CCM/EAX/GCM/Poly1305 AEAD cipher modes input in 24 KiB chucks

Authored by jukivili on Jan 2 2019, 8:25 PM.

Description

Process CCM/EAX/GCM/Poly1305 AEAD cipher modes input in 24 KiB chucks

* cipher/cipher-ccm.c (_gcry_cipher_ccm_encrypt)
(_gcry_cipher_ccm_decrypt): Process data in 24 KiB chunks.
* cipher/cipher-eax.c (_gcry_cipher_eax_encrypt)
(_gcry_cipher_eax_decrypt): Ditto.
* cipher/cipher-gcm.c (_gcry_cipher_gcm_encrypt)
(_gcry_cipher_gcm_decrypt): Ditto.
* cipher/cipher-poly1305.c (_gcry_cipher_poly1305_encrypt)
(_gcry_cipher_poly1305_decrypt): Ditto.

Patch changes AEAD modes to process input in 24 KiB chuncks to improve
cache locality when processing large buffers.

Huge buffer test in tests/benchmark show 0.7% improvement for AES-CCM
and AES-EAX, 6% for AES-GCM and 4% for Chacha20-Poly1305 on Intel Core
i7-4790K.

  • Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>

Details

Committed
jukiviliJan 2 2019, 8:25 PM
Parents
rC4871f11745f3: tests/benchmark: add Chacha20-Poly1305 benchmarking
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