Name: asR10047 Date: 05/25/2000


Signature.getAlgorithm() returns the value that is not
specified as a standard name for digital signature algorithms
in JCA. It happens only for SHA1withDSA algorithm of SUN provider
 
Here is the example demonstrating the bug:
------------------ SignatureTest.java -----------------
import java.security.*;

public class SignatureTest {

    public static void main(String[] argv) {
        String alg = "SHA1withDSA";
        Signature sig = null;
        try {
            sig = Signature.getInstance( alg, "SUN");
        } catch(NoSuchAlgorithmException nsae) {
            System.out.println(nsae);
        } catch(NoSuchProviderException nspe) {
            System.out.println(nspe);
        }
   
        System.out.println(" initialized with alorithm "+alg);
        System.out.println(" Signature.getAlgorithm() returns "+sig.getAlgorithm());
        System.exit(0);
    }
}
-------------- Output from the test -----------------
java full version "1.3.0-C"
Compiled...
 initialized with alorithm SHA1withDSA
 Signature.getAlgorithm() returns SHA/DSA
------------------------------------------------------

 In this case Signature.getAlgorithm() should return "SHA1withDSA"

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