http://www.bouncycastle.org/java.html: The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
  • The Legion of the Bouncy Castle Inc. 
package org.bouncycastle.dvcs;

import org.bouncycastle.asn1.dvcs.DVCSRequestInformationBuilder;
import org.bouncycastle.asn1.dvcs.Data;
import org.bouncycastle.asn1.dvcs.ServiceType;


Builder of CCPD requests (Certify Claim of Possession of Data).

/**
 * Builder of CCPD requests (Certify Claim of Possession of Data).
 */
public class CCPDRequestBuilder
    extends DVCSRequestBuilder
{
    public CCPDRequestBuilder()
    {
        super(new DVCSRequestInformationBuilder(ServiceType.CCPD));
    }

    
Builds CCPD request.

Params:
  • messageImprint – - the message imprint to include.
Throws:
Returns:a new DVCSRequest based on the state of this builder.
/**
     * Builds CCPD request.
     *
     * @param messageImprint - the message imprint to include.
     * @return a new DVCSRequest based on the state of this builder.
     * @throws DVCSException if an issue occurs during construction.
     */
    public DVCSRequest build(MessageImprint messageImprint)
        throws DVCSException
    {
        Data data = new Data(messageImprint.toASN1Structure());

        return createDVCRequest(data);
    }
}