JDK-8226900 : No AlgorithmParameters implementation for XDH/XEC
  • Type: Bug
  • Component: security-libs
  • Sub-Component: java.security
  • Affected Version: 11,12,13
  • Priority: P3
  • Status: Resolved
  • Resolution: Won't Fix
  • Submitted: 2019-06-27
  • Updated: 2022-06-22
  • Resolved: 2022-06-22
Related Reports
Blocks :  
JDK-8226374 - Restrict TLS signature schemes and named groups
Description
No XDH or XEC AlgorithmParameters impl in JDK.

It order to get AlgorithmParameters from AlgorithmParameterSpec, applications could code as the general tyle for "EC" or other algorithms:
AlgorithmParameters algParams =
    AlgorithmParameters.getInstance("x25519");
algParams.init(x25519AlgorithmParamSpec);

If no implementation of XDH AlgorithmParameters, it is tricky to get AlgorithmParameters object for x25519/x448.  Some public APIs requires to use AlgorithmParameters object,  for example AlgorithmConstraints.permits().
Comments
Removing the "starter-bug" label, since this is a little more nuanced/complex than initially thought. The current implementation has some issues that make this not as clean/simple as originally thought. We'll mark as "won't fix" for now and possibly open another RFE with a larger scope after some additional investigation.
22-06-2022
Investigation to be performed, since this may involve a larger refactoring of the current implementation.
22-06-2022