org.bouncycastle.cms.jcajce.JceKEMRecipientInfoGenerator Maven / Gradle / Ivy

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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 1.5 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.

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package org.bouncycastle.cms.jcajce;

import java.security.Provider;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.cert.CertificateEncodingException;
import java.security.cert.X509Certificate;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.cms.IssuerAndSerialNumber;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.cert.jcajce.JcaX509CertificateHolder;
import org.bouncycastle.cms.KEMRecipientInfoGenerator;

public class JceKEMRecipientInfoGenerator
    extends KEMRecipientInfoGenerator
{
    public JceKEMRecipientInfoGenerator(X509Certificate recipientCert, ASN1ObjectIdentifier symWrapAlgorithm)
        throws CertificateEncodingException
    {
        super(new IssuerAndSerialNumber(new JcaX509CertificateHolder(recipientCert).toASN1Structure()), new JceCMSKEMKeyWrapper(recipientCert.getPublicKey(), symWrapAlgorithm));
    }

    public JceKEMRecipientInfoGenerator(byte[] subjectKeyIdentifier, PublicKey publicKey, ASN1ObjectIdentifier symWrapAlgorithm)
    {
        super(subjectKeyIdentifier, new JceCMSKEMKeyWrapper(publicKey, symWrapAlgorithm));
    }

    public JceKEMRecipientInfoGenerator setProvider(String providerName)
    {
        ((JceCMSKEMKeyWrapper)this.wrapper).setProvider(providerName);

        return this;
    }

    public JceKEMRecipientInfoGenerator setProvider(Provider provider)
    {
        ((JceCMSKEMKeyWrapper)this.wrapper).setProvider(provider);

        return this;
    }

    public JceKEMRecipientInfoGenerator setSecureRandom(SecureRandom random)
    {
        ((JceCMSKEMKeyWrapper)this.wrapper).setSecureRandom(random);

        return this;
    }

    public JceKEMRecipientInfoGenerator setKDF(AlgorithmIdentifier kdfAlgorithm)
    {
        ((JceCMSKEMKeyWrapper)this.wrapper).setKDF(kdfAlgorithm);

        return this;
    }

    /**
     * Internally algorithm ids are converted into cipher names using a lookup table. For some providers
     * the standard lookup table won't work. Use this method to establish a specific mapping from an
     * algorithm identifier to a specific algorithm.
     * 
     *     For example:
     * 
     *     unwrapper.setAlgorithmMapping(PKCSObjectIdentifiers.rsaEncryption, "RSA");
     * 
     * @param algorithm  OID of algorithm in recipient.
     * @param algorithmName JCE algorithm name to use.
     * @return the current RecipientInfoGenerator.
     */
    public JceKEMRecipientInfoGenerator setAlgorithmMapping(ASN1ObjectIdentifier algorithm, String algorithmName)
    {
        ((JceCMSKEMKeyWrapper)this.wrapper).setAlgorithmMapping(algorithm, algorithmName);

        return this;
    }
}