Support for PSS Signature configuration via PSSParameterSpec.

This adds support for configuring the PSS Signature implementation
via java.security.spec.PSSParameterSpec. This also makes the
signature implementation return its current configuration as
AlgorithmParameters of algorithm "PSS" from which a PSSParameterSpec
can be obtained.

Bug: 25794302
Change-Id: Ib7e087cdc75a6b02898afafdfc4308802d6eb5d5
1 file changed