[gnutls-devel] GnuTLS | Disable TLS 1.3 dynamically during handshake if bad KX is enabed in priority (#825)

[Development of GNU's TLS library]

Dmitry Eremin-Solenikov commented:


@nmav the major problem is that this looks very close to 1.3-to-1.2 downgrade. So if both server and a client support both 1.3 and 1.2 and one of them places GOST-CNT to first place in their priority lists, the server will send a "branded" ServerRandom message and client then must drop this connection. I do not really know how to solve this struggle.

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