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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.crmf.bc;

import java.io.IOException;
import java.security.cert.CertificateEncodingException;
import java.security.cert.X509Certificate;

import org.bouncycastle.asn1.crmf.EncryptedValue;
import org.bouncycastle.cert.crmf.CRMFException;
import org.bouncycastle.cert.crmf.EncryptedValueBuilder;
import org.bouncycastle.cert.jcajce.JcaX509CertificateHolder;
import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
import org.bouncycastle.crypto.util.PrivateKeyInfoFactory;
import org.bouncycastle.operator.KeyWrapper;
import org.bouncycastle.operator.OutputEncryptor;

/**
 * Lightweight convenience class for EncryptedValueBuilder
 */
public class BcEncryptedValueBuilder
    extends EncryptedValueBuilder
{
    public BcEncryptedValueBuilder(KeyWrapper wrapper, OutputEncryptor encryptor)
    {
        super(wrapper, encryptor);
    }

    /**
     * Build an EncryptedValue structure containing the passed in certificate.
     *
     * @param certificate the certificate to be encrypted.
     * @return an EncryptedValue containing the encrypted certificate.
     * @throws CRMFException on a failure to encrypt the data, or wrap the symmetric key for this value.
     */
    public EncryptedValue build(X509Certificate certificate)
        throws CertificateEncodingException, CRMFException
    {
        return build(new JcaX509CertificateHolder(certificate));
    }

    /**
     * Build an EncryptedValue structure containing the private key details contained in
     * the passed PrivateKey.
     *
     * @param privateKey a private key parameter.
     * @return an EncryptedValue containing an EncryptedPrivateKeyInfo structure.
     * @throws CRMFException on a failure to encrypt the data, or wrap the symmetric key for this value.
     */
    public EncryptedValue build(AsymmetricKeyParameter privateKey)
        throws CRMFException, IOException
    {
        return build(PrivateKeyInfoFactory.createPrivateKeyInfo(privateKey));
    }
}