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Dual TLS1.2/TLS1.3 server must not select KEM if TLS1.2 is negotiated #36

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ctz opened this issue Aug 30, 2024 · 0 comments

ctz commented Aug 30, 2024

It cannot work as described, because TLS1.3 kx is client-first, whereas TLS1.2 is server-first.

Suggest some text like:

A server that selects a version earlier than TLS1.3 MUST NOT select a KEM-based key exchange method.

Under the "negotiation" heading.

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