On Thursday, December 15, 2016 08:32:32 am Guballa Jens (ETAS-PSC/ECS) wrote:
> - Page 108 (appendix C.4): "If an implementation negotiates use of TLS 1.2, 
> then negotiation of
>   cipher suites also supported by TLS 1.3 SHOULD be preferred, if     
>   available."
>   TLS cipher suites for TLS1.3 and TLS1.2 are disjunctive, in my 
> understanding. Therefore I think this sentence does not make any sense.
>   Unfortunately the semantic of "cipher suite" has been changed from TLS1.2 
> to TLS1.3, thus there are different definitions of this term for both TLS 
> versions.

I've already updated this sentence for draft 19.
https://tlswg.github.io/tls13-spec/#backwards-compatibility-security-restrictions


Dave

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