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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;

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

    /**
     * Note: the addition of attribute certificates is a BC extension. If you use this constructor they
     * will be added with a tag value of 1.
     *
     * @deprecated use (type, otherCert) constructor
     */
    public CertAnnContent(AttributeCertificate x509v2AttrCert)
    {
        super(x509v2AttrCert);
    }

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

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

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

    public static CertAnnContent getInstance(Object o)
    {
        if (o == null || o instanceof CertAnnContent)
        {
            return (CertAnnContent)o;
        }

        if (o instanceof CMPCertificate)
        {
            try
            {
                return CertAnnContent.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 CertAnnContent");
            }
        }

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

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

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

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