RFR: 8322971: KEM.getInstance() should check if a 3rd-party security provider is signed

[Sean Mullan]

On Wed, 3 Jan 2024 20:41:06 GMT, Weijun Wang <weijun at openjdk.org> wrote:

> `KEM.getInstance` now checks if the implementation is from a signed provider if it's not builtin to JDK.
> 
> Several adjustments to the test:
> 1. Put one impl in `SunEC` to pretend it's builtin. This is necessary to test for provider selection.
> 2. When there is no need to choose a provider, use reflection to create a `KEM` object that bypasses the `getInstance` call.

test/jdk/javax/crypto/KEM/RSA_KEM.java line 128:

> 126:     // To bypass the JCE security provider signature check
> 127:     private static KEM getKemImpl(Provider p) throws Exception {
> 128:         var ctor = KEM.class.getDeclaredConstructor(

How about creating it this way only if `java.runtime.name` system property does not contain "OpenJDK"?

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PR Review Comment: https://git.openjdk.org/jdk/pull/17253#discussion_r1445230838