import org.bouncycastle.asn1.crmf.CertReqMsg; //导入依赖的package包/类
public void testSubsequentMessage()
    throws Exception
{
    KeyPairGenerator kGen = KeyPairGenerator.getInstance("RSA", BC);

    kGen.initialize(512);

    KeyPair kp = kGen.generateKeyPair();
    X509CertificateHolder cert = makeV3Certificate(kp, "CN=Test", kp, "CN=Test");

    ContentSigner signer = new JcaContentSignerBuilder("SHA256withRSA").setProvider(BC).build(
                kp.getPrivate());

    GeneralName user = new GeneralName(new X500Name("CN=Test"));

    CertificateRequestMessageBuilder builder = new JcaCertificateRequestMessageBuilder(
                BigInteger.valueOf(1)).setPublicKey(kp.getPublic()).setProofOfPossessionSubsequentMessage(
                SubsequentMessage.encrCert);

            ProtectedPKIMessage certRequestMsg = new ProtectedPKIMessageBuilder(user,
                user).setTransactionID(new byte[] { 1, 2, 3, 4, 5 }).setBody(
                new PKIBody(PKIBody.TYPE_KEY_UPDATE_REQ, new CertReqMessages(builder.build().toASN1Structure()))).addCMPCertificate(
                cert).build(signer);

    ProtectedPKIMessage msg = new ProtectedPKIMessage(new GeneralPKIMessage(certRequestMsg.toASN1Structure().getEncoded()));

    CertReqMessages reqMsgs = CertReqMessages.getInstance(msg.getBody().getContent());

    CertReqMsg reqMsg = reqMsgs.toCertReqMsgArray()[0];

    assertEquals(ProofOfPossession.TYPE_KEY_ENCIPHERMENT, reqMsg.getPopo().getType());
}
 

import org.bouncycastle.asn1.crmf.CertReqMsg; //导入依赖的package包/类
public CertificateRequestMessage(CertReqMsg certReqMsg)
{
    this.certReqMsg = certReqMsg;
    this.controls = certReqMsg.getCertReq().getControls();
}
 

import org.bouncycastle.asn1.crmf.CertReqMsg; //导入依赖的package包/类
public JcaCertificateRequestMessage(byte[] certReqMsg)
{
    this(CertReqMsg.getInstance(certReqMsg));
}
 

import org.bouncycastle.asn1.crmf.CertReqMsg; //导入依赖的package包/类
public JcaCertificateRequestMessage(CertReqMsg certReqMsg)
{
    super(certReqMsg);
}
 

import org.bouncycastle.asn1.crmf.CertReqMsg; //导入依赖的package包/类
/**
 * Return the underlying ASN.1 object defining this CertificateRequestMessage object.
 *
 * @return a CertReqMsg.
 */
public CertReqMsg toASN1Structure()
{
    return certReqMsg;
}