Example usage for org.bouncycastle.cms CMSAlgorithm AES192_CBC

Introduction

In this page you can find the example usage for org.bouncycastle.cms CMSAlgorithm AES192_CBC.

Prototype

ASN1ObjectIdentifier AES192_CBC

To view the source code for org.bouncycastle.cms CMSAlgorithm AES192_CBC.

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Usage

From source file:de.mendelson.comm.as2.message.AS2MessageCreation.java

/**
 * Encrypts a byte array and returns it/*from   w  ww . j  a va  2s.  co  m*/
 */
private void encryptDataToMessage(AS2Message message, String receiverCryptAlias, int encryptionType,
        Partner receiver) throws Exception {
    AS2MessageInfo info = (AS2MessageInfo) message.getAS2Info();
    BCCryptoHelper cryptoHelper = new BCCryptoHelper();
    X509Certificate certificate = this.encryptionCertManager.getX509Certificate(receiverCryptAlias);
    CMSEnvelopedDataStreamGenerator dataGenerator = new CMSEnvelopedDataStreamGenerator();
    dataGenerator
            .addRecipientInfoGenerator(new JceKeyTransRecipientInfoGenerator(certificate).setProvider("BC"));
    DeferredFileOutputStream encryptedOutput = null;
    OutputStream out = null;
    try {
        //if the data is less then 3MB perform the operaion in memory else stream to disk
        encryptedOutput = new DeferredFileOutputStream(3 * 1024 * 1024, "as2encryptdata_", ".mem", null);
        if (encryptionType == AS2Message.ENCRYPTION_3DES) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(CMSAlgorithm.DES_EDE3_CBC).setProvider("BC").build());
        } else if (encryptionType == AS2Message.ENCRYPTION_DES) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(CMSAlgorithm.DES_EDE3_WRAP, 56).setProvider("BC")
                            .build());
        } else if (encryptionType == AS2Message.ENCRYPTION_RC2_40) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(CMSAlgorithm.RC2_CBC, 40).setProvider("BC").build());
        } else if (encryptionType == AS2Message.ENCRYPTION_RC2_64) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(CMSAlgorithm.RC2_CBC, 64).setProvider("BC").build());
        } else if (encryptionType == AS2Message.ENCRYPTION_RC2_128) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(CMSAlgorithm.RC2_CBC, 128).setProvider("BC").build());
        } else if (encryptionType == AS2Message.ENCRYPTION_RC2_196) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(CMSAlgorithm.RC2_CBC, 196).setProvider("BC").build());
        } else if (encryptionType == AS2Message.ENCRYPTION_AES_128) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(CMSAlgorithm.AES128_CBC).setProvider("BC").build());
        } else if (encryptionType == AS2Message.ENCRYPTION_AES_192) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(CMSAlgorithm.AES192_CBC).setProvider("BC").build());
        } else if (encryptionType == AS2Message.ENCRYPTION_AES_256) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(CMSAlgorithm.AES256_CBC).setProvider("BC").build());
        } else if (encryptionType == AS2Message.ENCRYPTION_RC4_40) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(new ASN1ObjectIdentifier(
                            cryptoHelper.convertAlgorithmNameToOID(BCCryptoHelper.ALGORITHM_RC4)), 40)
                                    .setProvider("BC").build());
        } else if (encryptionType == AS2Message.ENCRYPTION_RC4_56) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(new ASN1ObjectIdentifier(
                            cryptoHelper.convertAlgorithmNameToOID(BCCryptoHelper.ALGORITHM_RC4)), 56)
                                    .setProvider("BC").build());
        } else if (encryptionType == AS2Message.ENCRYPTION_RC4_128) {
            out = dataGenerator.open(encryptedOutput,
                    new JceCMSContentEncryptorBuilder(new ASN1ObjectIdentifier(
                            cryptoHelper.convertAlgorithmNameToOID(BCCryptoHelper.ALGORITHM_RC4)), 128)
                                    .setProvider("BC").build());
        }
        if (out == null) {
            throw new Exception("Internal failure: unsupported encryption type " + encryptionType);
        }
        InputStream in = null;
        try {
            in = message.getDecryptedRawDataInputStream();
            this.copyStreams(in, out);
        } finally {
            if (in != null) {
                in.close();
            }
        }
    } finally {
        if (out != null) {
            out.close();
        }
        if (encryptedOutput != null) {
            encryptedOutput.close();
        }
    }
    //size of the data was < than the threshold
    if (encryptedOutput.isInMemory()) {
        message.setRawData(encryptedOutput.getData());
    } else {
        //data has been written to a temp file: reread and return
        ByteArrayOutputStream memOut = new ByteArrayOutputStream();
        encryptedOutput.writeTo(memOut);
        memOut.flush();
        memOut.close();
        //finally delete the temp file
        boolean deleted = encryptedOutput.getFile().delete();
        message.setRawData(memOut.toByteArray());
    }
    if (this.logger != null) {
        String cryptAlias = this.encryptionCertManager
                .getAliasByFingerprint(receiver.getCryptFingerprintSHA1());
        this.logger.log(Level.INFO, this.rb.getResourceString("message.encrypted",
                new Object[] { info.getMessageId(), cryptAlias,
                        this.rbMessage.getResourceString("encryption." + receiver.getEncryptionType()) }),
                info);
    }
}

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