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Filippo Valsorda ee63782fd6 crypto/tls: reject low-order Curve25519 points
The RFC recommends checking the X25519 output to ensure it's not the
zero value, to guard against peers trying to remove contributory
behavior.

In TLS there should be enough transcript involvement to mitigate any
attack, and the RSA key exchange would suffer from the same issues by
design, so not proposing a backport.

See #31846

Change-Id: I8e657f8ee8aa72c3f8ca3b124555202638c53f5e
Reviewed-on: https://go-review.googlesource.com/c/go/+/183039
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
2019-06-20 19:30:01 +00:00
.github
api api: update next.txt 2019-05-08 16:55:59 +00:00
doc doc/go1.13: add release notes for the testing package 2019-06-19 21:14:12 +00:00
lib/time time: read 64-bit data if available 2019-02-26 23:10:35 +00:00
misc misc/ios: add missing CGO_ENABLED=1 for running standalone tests 2019-06-15 06:19:57 +00:00
src crypto/tls: reject low-order Curve25519 points 2019-06-20 19:30:01 +00:00
test cmd/compile: add necessary operand to mergePoint in rewrite rules 2019-06-20 16:56:47 +00:00
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AUTHORS A: Add Maya Rashish (individual CLA) 2019-04-23 14:40:30 +00:00
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SECURITY.md SECURITY.md: add security file 2019-05-23 21:22:44 +00:00

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