I was wondering if we can have the SSL subsystem move away from TLS 1.2 and use forward secrecy and either AES-GCM or CHACHA20_POLY1305 as per the depreciation of TLS features / algorithms?
I am by no means an expert but I noticed when I enabled HTTPS on the default jenkins install (from a fresh apt-get on a new machine) and imported my SSL certificates into the keystore, that the first warning that Chrome gave was about the outdated TLS 1.2 connection method.
Daniel Beck
added a comment - I think the configuration for this is done through JSSE.
http://docs.oracle.com/javase/7/docs/technotes/guides/security/jsse/JSSERefGuide.html#DisabledAlgorithms
Instructions for a different application seems relevant here as well: http://www.papercut.com/kb/Main/SSLCipherConfiguration
This isn't quite correct for the scope of this issue but may be getting close.
The issue isn't surrounding bad certificate algorithms, but specifically the connection algorithms being used.
Perhaps a more appropriate thing to modify would be jdk.tls.disabledAlgorithms
Ian Moroney
added a comment - This isn't quite correct for the scope of this issue but may be getting close.
The issue isn't surrounding bad certificate algorithms, but specifically the connection algorithms being used.
Perhaps a more appropriate thing to modify would be jdk.tls.disabledAlgorithms
jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize < 768
and / or
jdk.tls.client.protocols perhaps?
Unassigned
Ian Moroney
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Improvement
Major
I think the configuration for this is done through JSSE.
http://docs.oracle.com/javase/7/docs/technotes/guides/security/jsse/JSSERefGuide.html#DisabledAlgorithms
Instructions for a different application seems relevant here as well: http://www.papercut.com/kb/Main/SSLCipherConfiguration