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Encoding an IV with ASN 1

import java.security.AlgorithmParameters; import java.security.Security; import javax.crypto.spec.IvParameterSpec; import org.bouncycastle.asn1.ASN1InputStream; import org.bouncycastle.asn1.util.ASN1Dump; public class MainClass {   public static void main(String[] args) throws Exception {     Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());          AlgorithmParameters params = AlgorithmParameters.getInstance("AES", "BC");     IvParameterSpec ivSpec = new IvParameterSpec(new byte[16]);     params.init(ivSpec);     ASN1InputStream aIn = new ASN1InputStream(params.getEncoded("ASN.1"));     System.out.println(ASN1Dump.dumpAsString(aIn.readObject()));   } }