From 5c8ec89cb53025bc76b242b0d2410bf5060b697e Mon Sep 17 00:00:00 2001 From: Russ Cox Date: Thu, 28 Jul 2022 13:06:28 -0400 Subject: doc/go1.19: minor adjustments and links A few last-minute clarifications before the release. Change-Id: Ia0123441633c147aa3f76ea29ed26c7722e2416c Reviewed-on: https://go-review.googlesource.com/c/go/+/419994 Reviewed-by: Ian Lance Taylor --- doc/go1.19.html | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/doc/go1.19.html b/doc/go1.19.html index e308affa7c..fc0ef11e3f 100644 --- a/doc/go1.19.html +++ b/doc/go1.19.html @@ -31,7 +31,8 @@ Do not send CLs removing the interior tags from such phrases.

Memory Model

- The Go memory model has been revised to align Go with + The Go memory model has been + revised to align Go with the memory model used by C, C++, Java, JavaScript, Rust, and Swift. Go only provides sequentially consistent atomics, not any of the more relaxed forms found in other languages. Along with the memory model update, @@ -378,11 +379,17 @@ as well as support for rendering them to HTML, Markdown, and text.

The Prime - implementation was simplified. This will lead to different outputs for the - same random stream compared to the previous implementation. The internals - of Prime are not stable, should not be relied upon not to - change, and the output is now intentionally non-deterministic with respect - to the input stream. + implementation was changed to use only rejection sampling, + which removes a bias when generating small primes in non-cryptographic contexts, + removes one possible minor timing leak, + and better aligns the behavior with BoringSSL, + all while simplifying the implementation. + The change does produce different outputs for a given random source + stream compared to the previous implementation, + which can break tests written expecting specific results from + specific deterministic random sources. + To help prevent such problems in the future, + the implementation is now intentionally non-deterministic with respect to the input stream.

@@ -390,7 +397,7 @@ as well as support for rendering them to HTML, Markdown, and text.
crypto/tls

- The tls10default GODEBUG option has been + The GODEBUG option tls10default=1 has been removed. It is still possible to enable TLS 1.0 client-side by setting Config.MinVersion.

@@ -421,7 +428,7 @@ as well as support for rendering them to HTML, Markdown, and text.

- Removal of the x509sha1=1 GODEBUG option, + Removal of the GODEBUG optionx509sha1=1, originally planned for Go 1.19, has been rescheduled to a future release. Applications using it should work on migrating. Practical attacks against SHA-1 have been demonstrated since 2017 and publicly trusted Certificate -- cgit v1.2.1