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The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.8 and up. The APIs are designed primarily to be used in conjunction with the BC LTS provider but may also be used with other providers providing cryptographic services.

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package org.bouncycastle.cert.cmp;

import org.bouncycastle.asn1.cmp.CertConfirmContent;
import org.bouncycastle.asn1.cmp.CertStatus;
import org.bouncycastle.asn1.cmp.PKIBody;
import org.bouncycastle.operator.DefaultDigestAlgorithmIdentifierFinder;
import org.bouncycastle.operator.DigestAlgorithmIdentifierFinder;

/**
 * Carrier class for a {@link CertConfirmContent} message.
 */
public class CertificateConfirmationContent
{
    private DigestAlgorithmIdentifierFinder digestAlgFinder;
    private CertConfirmContent content;

    public CertificateConfirmationContent(CertConfirmContent content)
    {
        this(content, new DefaultDigestAlgorithmIdentifierFinder());
    }

    public CertificateConfirmationContent(CertConfirmContent content, DigestAlgorithmIdentifierFinder digestAlgFinder)
    {
        this.digestAlgFinder = digestAlgFinder;
        this.content = content;
    }

    public static CertificateConfirmationContent fromPKIBody(PKIBody pkiBody)
    {
        return fromPKIBody(pkiBody, new DefaultDigestAlgorithmIdentifierFinder());
    }

    public static CertificateConfirmationContent fromPKIBody(PKIBody pkiBody, DigestAlgorithmIdentifierFinder digestAlgFinder)
    {
        if (!isCertificateConfirmationContent(pkiBody.getType()))
        {
            throw new IllegalArgumentException("content of PKIBody wrong type: " + pkiBody.getType());
        }

        return new CertificateConfirmationContent(CertConfirmContent.getInstance(pkiBody.getContent()), digestAlgFinder);
    }

    public static boolean isCertificateConfirmationContent(int bodyType)
    {
        switch (bodyType)
        {
        case PKIBody.TYPE_CERT_CONFIRM:
            return true;
        default:
            return false;
        }
    }

    public CertConfirmContent toASN1Structure()
    {
        return content;
    }

    public CertificateStatus[] getStatusMessages()
    {
        CertStatus[] statusArray = content.toCertStatusArray();
        CertificateStatus[] ret = new CertificateStatus[statusArray.length];

        for (int i = 0; i != ret.length; i++)
        {
            ret[i] = new CertificateStatus(digestAlgFinder, statusArray[i]);
        }

        return ret;
    }
}