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The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. The APIs are designed primarily to be used in conjunction 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.

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package org.bouncycastle.cms;

import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;

import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1Set;
import org.bouncycastle.asn1.cms.OriginatorInfo;
import org.bouncycastle.asn1.x509.Certificate;
import org.bouncycastle.asn1.x509.CertificateList;
import org.bouncycastle.cert.X509CRLHolder;
import org.bouncycastle.cert.X509CertificateHolder;
import org.bouncycastle.util.CollectionStore;
import org.bouncycastle.util.Store;

public class OriginatorInformation
{
    private OriginatorInfo originatorInfo;

    OriginatorInformation(OriginatorInfo originatorInfo)
    {
        this.originatorInfo = originatorInfo;
    }

    /**
     * Return the certificates stored in the underlying OriginatorInfo object.
     *
     * @return a Store of X509CertificateHolder objects.
     */
    public Store getCertificates()
    {
        ASN1Set certSet = originatorInfo.getCertificates();

        if (certSet != null)
        {
            List certList = new ArrayList(certSet.size());

            for (Enumeration en = certSet.getObjects(); en.hasMoreElements();)
            {
                ASN1Primitive obj = ((ASN1Encodable)en.nextElement()).toASN1Primitive();

                if (obj instanceof ASN1Sequence)
                {
                    certList.add(new X509CertificateHolder(Certificate.getInstance(obj)));
                }
            }

            return new CollectionStore(certList);
        }

        return new CollectionStore(new ArrayList());
    }

    /**
     * Return the CRLs stored in the underlying OriginatorInfo object.
     *
     * @return a Store of X509CRLHolder objects.
     */
    public Store getCRLs()
    {
        ASN1Set crlSet = originatorInfo.getCRLs();

        if (crlSet != null)
        {
            List    crlList = new ArrayList(crlSet.size());

            for (Enumeration en = crlSet.getObjects(); en.hasMoreElements();)
            {
                ASN1Primitive obj = ((ASN1Encodable)en.nextElement()).toASN1Primitive();

                if (obj instanceof ASN1Sequence)
                {
                    crlList.add(new X509CRLHolder(CertificateList.getInstance(obj)));
                }
            }

            return new CollectionStore(crlList);
        }

        return new CollectionStore(new ArrayList());
    }

    /**
     * Return the underlying ASN.1 object defining this SignerInformation object.
     *
     * @return a OriginatorInfo.
     */
    public OriginatorInfo toASN1Structure()
    {
        return originatorInfo;
    }
}