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

Introduction

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

Prototype

public OutputEncryptor build() throws CMSException 

Source Link

Usage

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

License:Open Source License

/**
 * @param is data to be encrypted/*from   w  w w  . j a va 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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