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The Bouncy Castle Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified and used appropriately.

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package org.bouncycastle.asn1.cmp;

import java.io.IOException;

import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.BERTags;
import org.bouncycastle.asn1.x509.AttributeCertificate;
import org.bouncycastle.asn1.x509.Certificate;

/**
 * OOBCert ::= CMPCertificate
 */
public class OOBCert
    extends CMPCertificate
{

    public OOBCert(AttributeCertificate x509v2AttrCert)
    {
        super(1, x509v2AttrCert);
    }

    public OOBCert(int type, ASN1Object otherCert)
    {
        super(type, otherCert);
    }

    public OOBCert(Certificate x509v3PKCert)
    {
        super(x509v3PKCert);
    }

    public static OOBCert getInstance(ASN1TaggedObject ato, boolean isExplicit)
    {
        if (ato != null)
        {
            if (isExplicit)
            {
                return OOBCert.getInstance(ato.getObject());
            }
            else
            {
                throw new IllegalArgumentException("tag must be explicit");
            }
        }
        return null;
    }

    public static OOBCert getInstance(Object o)
    {

        if (o == null || o instanceof OOBCert)
        {
            return (OOBCert)o;
        }

        if (o instanceof CMPCertificate)
        {
            try
            {
                return getInstance(((CMPCertificate)o).getEncoded());
            }
            catch (IOException e)
            {
                throw new IllegalArgumentException(e.getMessage(), e);
            }
        }

        if (o instanceof byte[])
        {
            try
            {
                o = ASN1Primitive.fromByteArray((byte[])o);
            }
            catch (IOException e)
            {
                throw new IllegalArgumentException("Invalid encoding in OOBCert");
            }
        }

        if (o instanceof ASN1Sequence)
        {
            return new OOBCert(Certificate.getInstance(o));
        }

        if (o instanceof ASN1TaggedObject)
        {
            ASN1TaggedObject taggedObject = (ASN1TaggedObject)o;

            return new OOBCert(taggedObject.getTagNo(), taggedObject.getObject());
        }

        throw new IllegalArgumentException("Invalid object: " + o.getClass().getName());
    }

}