On Mon, Jan 30, 2017 at 4:45 PM Adam Langley <a...@imperialviolet.org> wrote:
On Mon, Jan 30, 2017 at 1:41 PM, Scott Fluhrer (sfluhrer) <sfluh...@cisco.com> wrote: > My question: in TLS 1.3, if the client inserts an extension of a type that > the server does not recognize, how must the server behave? Is it required > that the server just ignore the extension, or can it take some other action > (e.g. ignore the client hello)? The server must ignore unknown extensions. Here's a PR to spell this out more explicitly in the text: https://github.com/tlswg/tls13-spec/pull/868 I could have sworn this was in there already, but apparently not? That or I can't read. David
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