JDK-8140436 : Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for TLS
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A new TLS extension, "Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for TLS" (FFDHE extension), was proposed:
We may want to consider to support FFDHE extension so that 2048+ bits DH can be the default preferable strength from JDK 6 to JDK 9.
No API is planned. Plan to backport to previous releases.