Example usage for org.bouncycastle.cms.bc BcCMSContentEncryptorBuilder BcCMSContentEncryptorBuilder

Introduction

In this page you can find the example usage for org.bouncycastle.cms.bc BcCMSContentEncryptorBuilder BcCMSContentEncryptorBuilder.

Prototype

public BcCMSContentEncryptorBuilder(ASN1ObjectIdentifier encryptionOID) 

Source Link

Usage

From source file:org.apache.kerby.pkix.EnvelopedDataEngine.java

License:Apache License

/**
 * Uses a certificate to encrypt data in a CMS EnvelopedData structure and
 * returns the encoded EnvelopedData as bytes.
 * <p/>//from   ww  w .ja v a  2 s.co m
 * 'encKeyPack' contains a CMS type ContentInfo encoded according to [RFC3852].
 * The contentType field of the type ContentInfo is id-envelopedData (1.2.840.113549.1.7.3).
 * The content field is an EnvelopedData. The contentType field for the type
 * EnvelopedData is id-signedData (1.2.840.113549.1.7.2).
 *
 * @param dataToEnvelope
 * @param certificate
 * @return The EnvelopedData bytes.
 * @throws IOException
 * @throws CMSException
 * @throws CertificateEncodingException
 */
public static byte[] getEnvelopedReplyKeyPack(byte[] dataToEnvelope, X509Certificate certificate)
        throws IOException, CMSException, CertificateEncodingException {
    CMSProcessableByteArray content = new CMSProcessableByteArray(dataToEnvelope);

    CMSEnvelopedDataGenerator envelopeGenerator = new CMSEnvelopedDataGenerator();
    envelopeGenerator.addRecipientInfoGenerator(
            new BcRSAKeyTransRecipientInfoGenerator(new JcaX509CertificateHolder(certificate)));
    CMSEnvelopedData envdata = envelopeGenerator.generate(content,
            new BcCMSContentEncryptorBuilder(CMSAlgorithm.DES_EDE3_CBC).build());

    return envdata.getEncoded();
}

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From source file:org.ejbca.util.CMS.java

License:Open Source License

/**
 * @param is data to be encrypted// w  ww.j  a v a  2 s.  co m
 * @param os encrypted data
 * @param cert certificate with the public key to be used for the encryption
 * @param symmAlgOid the symmetric encryption algorithm to use, for example CMSEnvelopedGenerator.AES128_CBC
 * @throws Exception
 */
public static void encrypt(final InputStream is, final OutputStream os, final X509Certificate cert,
        final String symmAlgOid) throws Exception {
    final InputStream bis = new BufferedInputStream(is, bufferSize);
    final OutputStream bos = new BufferedOutputStream(os, bufferSize);
    final CMSEnvelopedDataStreamGenerator edGen = new CMSEnvelopedDataStreamGenerator();
    edGen.addRecipientInfoGenerator(
            new JceKeyTransRecipientInfoGenerator("hej".getBytes(), cert.getPublicKey()));
    BcCMSContentEncryptorBuilder bcCMSContentEncryptorBuilder = new BcCMSContentEncryptorBuilder(
            new ASN1ObjectIdentifier(symmAlgOid));
    final OutputStream out = edGen.open(bos, bcCMSContentEncryptorBuilder.build());
    fromInToOut(bis, out);
    bos.close();
    os.close();
}

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