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3 Commits
Author SHA1 Message Date
Alex Vaghin 9477e0b78b chacha20poly1305: fix build constraints 
Similarly to https://go-review.googlesource.com/32311,
chacha20poly1305 needs additional build constraints
for non-standard toolchains.

Change-Id: I22816ef333c05450e9ab4debb3ce591518b6b84b
Reviewed-on: https://go-review.googlesource.com/32391
Run-TryBot: Alex Vaghin <ddos@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
 2016-10-31 18:08:06 +00:00
Brad Fitzpatrick 5f31782cfb poly1305, chacha20poly1305: fix build for Go 1.6 
Fixes golang/go#17424

Change-Id: I49d6e475c173da6a31542931d555ab87cc45a1c6
Reviewed-on: https://go-review.googlesource.com/30971
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
 2016-10-12 22:20:46 +00:00
Adam Langley 594708b89f chacha20poly1305: new package. 
This change adds a package, chacha20poly1305, which implements the
ChaCha20-Poly1305 AEAD from RFC 7539. This AEAD has several attractive
features:
   1. It's naturally constant time. AES-GCM needs either dedicated
      hardware or extreme effort to be fast and constant-time, while
      this design is easy to make constant-time.
   2. It's fast on modern processors: it runs at 1GB/s on my IvyBrige
      system.
   3. It's seeing significant use in TLS. (A change for crypto/tls is
      forthcoming.)

This change merges two CLs:
  https://go-review.googlesource.com/#/c/24717
  https://go-review.googlesource.com/#/c/26691

I took the amd64-optimised AEAD implementation from the former because
it was significantly faster. But the structure of the change is taken
from the latter.

This version will be checked into x/crypto. This package will then be
vendored into the stdlib so that it can be used from crypto/tls.

Change-Id: I5a60587958b7afeec81ca1091e603a7e8517000b
Reviewed-on: https://go-review.googlesource.com/30728
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2016-10-11 21:59:08 +00:00