RFR: 8241306: Add SignatureMethodParameterSpec subclass for RSASSA-PSS params

[Weijun Wang]

On Wed, 24 Mar 2021 21:36:21 GMT, Weijun Wang <weijun at openjdk.org> wrote:

> This enhancement contains the following code changes:
> 
> 1. Create a new public API `javax/xml/crypto/dsig/spec/RSAPSSParameterSpec` and remove the internal one.
> 2. Update marshaling and unmarshaling code inside `DOMRSAPSSSignatureMethod` so it understands extra fields in `PSSParameterSpec` and is aware of the defaults in both directions.
> 3. Update `DOMSignedInfo` so that secure validation can restrict `DigestMethod` used inside `RSAPSSParameterSpec`
> 4. Tests

src/java.xml.crypto/share/classes/com/sun/org/apache/xml/internal/security/algorithms/implementations/SignatureBaseRSA.java line 588:

> 586: 
> 587:         public enum DigestAlgorithm {
> 588: //            SHA1("SHA-1", DigestMethod.SHA1, 20),

Do we want to support "SHA-1"? It's considered weak and not the default but the RFC seems to have not disabled it at all.

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PR: https://git.openjdk.java.net/jdk/pull/3181