RFR: 8368514: TLS stateless session ticket decryption fails on some providers

[Daniel Jeliński]

On Wed, 24 Sep 2025 15:36:47 GMT, Artur Barashev <abarashev at openjdk.org> wrote:

>> Please review this trivial patch that fixes stateless session resumption with JCE providers that require extra space for AES/GCM decryption.
>> 
>> I modified the existing FipsModeTLS12 test to additionally verify that session resumption works. The TLS 1.3 test resumes the session using a stateless ticket; the TLS 1.2 test uses stateful sessions, because stateless ticket creation fails for other reasons.
>> 
>> Tier1-3 tests continue to pass.
>
> test/jdk/sun/security/pkcs11/tls/tls12/FipsModeTLS12.java line 35:
> 
>> 33:  * @run main/othervm/timeout=120 -Djdk.tls.client.protocols=TLSv1.2
>> 34:  *      -Djdk.tls.useExtendedMasterSecret=false
>> 35:  *      -Djdk.tls.client.enableSessionTicketExtension=false FipsModeTLS12
> 
> Why do we need to set `jdk.tls.client.enableSessionTicketExtension` to false?

because with TLS 1.2, the server can't produce a stateless ticket; it fails when trying to extract the master secret.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/27463#discussion_r2376293874