linux-kernel - [PATCH 0/7] crypto: aesni: provide generic gcm(aes)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 28 Apr 2017 18:11:55 +0200
From:   Sabrina Dubroca <sd@...asysnail.net>
To:     netdev@...r.kernel.org
Cc:     Sabrina Dubroca <sd@...asysnail.net>,
        Hannes Frederic Sowa <hannes@...essinduktion.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/7] crypto: aesni: provide generic gcm(aes)

The current aesni AES-GCM implementation only offers support for
rfc4106(gcm(aes)).  This makes some things a little bit simpler
(handling of associated data and authentication tag), but it means
that non-IPsec users of gcm(aes) have to rely on
gcm_base(ctr-aes-aesni,ghash-clmulni), which is much slower.

This patchset adds handling of all valid authentication tag lengths
and of any associated data length to the assembly code, and exposes a
generic gcm(aes) AEAD algorithm to the crypto API.

With these patches, performance of MACsec on a single core increases
by 40% (from 4.5Gbps to around 6.3Gbps).

Sabrina Dubroca (7):
  crypto: aesni: make non-AVX AES-GCM work with any aadlen
  crypto: aesni: make non-AVX AES-GCM work with all valid auth_tag_len
  crypto: aesni: make AVX AES-GCM work with any aadlen
  crypto: aesni: make AVX AES-GCM work with all valid auth_tag_len
  crypto: aesni: make AVX2 AES-GCM work with any aadlen
  crypto: aesni: make AVX2 AES-GCM work with all valid auth_tag_len
  crypto: aesni: add generic gcm(aes)

 arch/x86/crypto/aesni-intel_asm.S        | 231 +++++++++++++++++++------
 arch/x86/crypto/aesni-intel_avx-x86_64.S | 283 ++++++++++++++++++++++---------
 arch/x86/crypto/aesni-intel_glue.c       | 208 +++++++++++++++++------
 3 files changed, 539 insertions(+), 183 deletions(-)

-- 
2.12.2