RFR: 8341346: Add support for exporting TLS Keying Material [v13]

[Artur Barashev]

On Thu, 15 May 2025 00:23:56 GMT, Bradford Wetmore <wetmore at openjdk.org> wrote:

>> src/java.base/share/classes/sun/security/ssl/SSLSessionImpl.java line 1583:
>> 
>>> 1581:         // Calculations are primarily based on protocol version.
>>> 1582:         switch (protocolVersion) {
>>> 1583:         case TLS13:  // HKDF-based
>> 
>> Should we also handle `TLS13Plus` versions here?
>
> I like the enumeration as it's possible there could be new behavior with TLS14Plus, but this might save a few minutes down the road, so I've changed it.

Yes, the general approach in SSL code is to use `if (protocolVersion.useTLS13PlusSpec()) {} else {}`

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PR Review Comment: https://git.openjdk.org/jdk/pull/24976#discussion_r2089949997