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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.cmc;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.crmf.PKIPublicationInfo;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.util.Arrays;

/**
 * *      CMCPublicationInfo ::= SEQUENCE {
 *           hashAlg                      AlgorithmIdentifier,
 *           certHashes                   SEQUENCE OF OCTET STRING,
 *           pubInfo                      PKIPublicationInfo
 * }
 *
 *
 */
public class CMCPublicationInfo
    extends ASN1Object
{
    private final AlgorithmIdentifier hashAlg;
    private final ASN1Sequence certHashes;
    private final PKIPublicationInfo pubInfo;

    public CMCPublicationInfo(AlgorithmIdentifier hashAlg, byte[][] anchorHashes, PKIPublicationInfo pubInfo)
    {
        this.hashAlg = hashAlg;

        ASN1EncodableVector v = new ASN1EncodableVector(anchorHashes.length);
        for (int i = 0; i != anchorHashes.length; i++)
        {
             v.add(new DEROctetString(Arrays.clone(anchorHashes[i])));
        }
        this.certHashes = new DERSequence(v);

        this.pubInfo = pubInfo;
    }

    private CMCPublicationInfo(ASN1Sequence seq)
    {
        if (seq.size() != 3)
        {
            throw new IllegalArgumentException("incorrect sequence size");
        }
        this.hashAlg = AlgorithmIdentifier.getInstance(seq.getObjectAt(0));
        this.certHashes = ASN1Sequence.getInstance(seq.getObjectAt(1));
        this.pubInfo = PKIPublicationInfo.getInstance(seq.getObjectAt(2));
    }

    public static CMCPublicationInfo getInstance(Object o)
    {
        if (o instanceof CMCPublicationInfo)
        {
            return (CMCPublicationInfo)o;
        }

        if (o != null)
        {
            return new CMCPublicationInfo(ASN1Sequence.getInstance(o));
        }

        return null;
    }

    public AlgorithmIdentifier getHashAlg()
    {
        return hashAlg;
    }

    public byte[][] getCertHashes()
    {
        byte[][] hashes = new byte[certHashes.size()][];

        for (int i = 0; i != hashes.length; i++)
        {
            hashes[i] = Arrays.clone(ASN1OctetString.getInstance(certHashes.getObjectAt(i)).getOctets());
        }

        return hashes;
    }

    public PKIPublicationInfo getPubInfo()
    {
        return pubInfo;
    }

    public ASN1Primitive toASN1Primitive()
    {
        ASN1EncodableVector v = new ASN1EncodableVector(3);

        v.add(hashAlg);
        v.add(certHashes);
        v.add(pubInfo);

        return new DERSequence(v);
    }
}