RFR[13] JDK-8225745: NoSuchAlgorithmException exception for SHA256withECDSA with RSASSA-PSS support

Weijun Wang weijun.wang at oracle.com
Wed Jul 3 03:27:45 UTC 2019

 368     private static boolean isCompatible(ECParameterSpec sigParams,
 369             ECParameterSpec keyParams) {
 370         if (sigParams == null) {
 371             // no restriction on key param
 372             return true;
 373         }
 374         return sigParams.equals(keyParams);
 375     }

What does "sigParams.equals(keyParams)" mean here? What is the getClass() of those 2 ECParameterSpec objects?

Or maybe you mean "==" because it is always a NamedCurve stored in CurveDB?


> On Jul 3, 2019, at 10:48 AM, Valerie Peng <valerie.peng at oracle.com> wrote:
> Hi
> Any one can help reviewing this fix? Some ECDSA certificates contains signature algorithm identifiers with non-null parameter bytes. Before RSASSA-PSS support, these parameter bytes are ignored, however, after RSASSA-PSS support, the parameter bytes are passed to the underlying signature impl and this breaks the ECDSA certificate verification. In order for the verification to succeeds, the SignatureUtil class needs to be able to parse the parameter bytes for ECDSA certificate and that SunEC provider needs to accept non-null signature parameters.
> Bug: https://bugs.openjdk.java.net/browse/JDK-8225745
> Webrev: http://cr.openjdk.java.net/~valeriep/8225745/webrev.00/
> Mach5 run is clean.
> Thanks,
> Valerie

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