package org.bouncycastle.jce.provider.test;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.util.encoders.Base64;
import org.bouncycastle.util.test.SimpleTest;
import java.io.IOException;
import java.security.AlgorithmParameters;
import java.security.Security;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.DSAParameterSpec;
import java.security.spec.InvalidParameterSpecException;
public class AlgorithmParametersTest
extends SimpleTest
{
private byte[] dsaParams = Base64.decode(
"MIGcAkEAjfKklEkidqo9JXWbsGhpy+rA2Dr7jQz3y7gyTw14guXQdi/FtyEOr8Lprawyq3qsSWk9+/g3J"
+ "MLsBzbuMcgCkQIVAMdzIYxzfsjumTtPLe0w9I7azpFfAkBP3Z9K7oNeZMXEXYpqvrMUgVdFjq4lnWJoV8"
+ "Rwe+TERStHTkqSO7sp0lq7EEggVMcuXtarKNsxaJ+qyYv/n1t6");
private void basicTest(String algorithm, Class algorithmParameterSpec, byte[] asn1Encoded)
throws Exception
{
AlgorithmParameters alg = AlgorithmParameters.getInstance(algorithm, "BC");
alg.init(asn1Encoded);
try
{
alg.init(asn1Encoded);
fail("encoded re-initialization not detected");
}
catch (IOException e)
{
// expected already initialized
}
AlgorithmParameterSpec spec = alg.getParameterSpec(algorithmParameterSpec);
try
{
alg.init(spec);
fail("spec re-initialization not detected");
}
catch (InvalidParameterSpecException e)
{
// expected already initialized
}
try
{
spec = alg.getParameterSpec(AlgorithmParameterSpec.class);
fail("wrong spec not detected");
}
catch (InvalidParameterSpecException e)
{
// expected unknown object
}
try
{
spec = alg.getParameterSpec(null);
fail("null spec not detected");
}
catch (NullPointerException e)
{
// expected unknown object
}
alg = AlgorithmParameters.getInstance(algorithm, "BC");
alg.init(asn1Encoded, "ASN.1");
alg = AlgorithmParameters.getInstance(algorithm, "BC");
alg.init(asn1Encoded, null);
alg = AlgorithmParameters.getInstance(algorithm, "BC");
try
{
alg.init(asn1Encoded, "FRED");
fail("unknown spec not detected");
}
catch (IOException e)
{
// expected already initialized
}
}
public void performTest()
throws Exception
{
basicTest("DSA", DSAParameterSpec.class, dsaParams);
}
public String getName()
{
return "AlgorithmParameters";
}
public static void main(
String[] args)
{
Security.addProvider(new BouncyCastleProvider());
runTest(new AlgorithmParametersTest());
}
}