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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()));
}
}
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