io.aos.crypto.spl05.PSSParamExample.java Source code

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package io.aos.crypto.spl05;

import java.security.AlgorithmParameters;
import java.security.Signature;
import java.security.spec.PSSParameterSpec;

import org.bouncycastle.asn1.ASN1InputStream;
import org.bouncycastle.asn1.util.ASN1Dump;

/**
 * Example showing PSS parameter recovery and encoding
 */
public class PSSParamExample {

    public static void main(String... args) throws Exception {
        Signature signature = Signature.getInstance("SHA1withRSAandMGF1", "BC");

        // set the default parameters
        signature.setParameter(PSSParameterSpec.DEFAULT);

        // get the default parameters
        AlgorithmParameters params = signature.getParameters();

        // look at the ASN.1 encodng.
        ASN1InputStream aIn = new ASN1InputStream(params.getEncoded("ASN.1"));

        System.out.println(ASN1Dump.dumpAsString(aIn.readObject()));
    }
}