DHE 2048-bit not working on latest JVM7

[mrbrdo]

Latest JVM7 is supposed to support 2048-bit DHE, but it throws "Java::JavaLang::RuntimeException: Could not generate DH keypair".

[kares]

thanks, for completeness could you please share your Java version and the work-around you did ...

[mrbrdo]

Java version: Oracle 1.7.0_79-b15
Workaround java.security.Security.setProperty("jdk.tls.disabledAlgorithms", "SSLv3, DHE")

[kares]

we'll be setting it to disabled (just like you did) on Java <= 7 ... on Java 8 we force 1024/2048 DHE for now

[mrbrdo]

Doesn't Java 7 support 2048bit DHE?

[kares]

@mrbrdo I believe it does not, do you know otherwise?

[mrbrdo]

Hm I thought I read that somewhere, but just doing a quick search right now does not reveal any useful info so perhaps you're right.