Example usage for javax.crypto NullCipher NullCipher

Introduction

In this page you can find the example usage for javax.crypto NullCipher NullCipher.

Prototype

public NullCipher() 

Source Link

Document

Creates a NullCipher object.

Usage

From source file:de.codesourcery.eve.apiclient.utils.PasswordCipherProvider.java

@Override
public Cipher createCipher(boolean decrypt) {

    final char[] password = getPassword();

    if (ArrayUtils.isEmpty(password)) {
        log.warn("createCipher(): No password , returning NULL cipher.");
        return new NullCipher();
    }//from   w ww.  j  a  v  a  2  s.  c  o m

    try {

        final int iterations = 20;

        final byte[] salt = new byte[] { (byte) 0xab, (byte) 0xfe, 0x03, 0x47, (byte) 0xde, (byte) 0x99,
                (byte) 0xff, 0x1c };

        final PBEParameterSpec pbeSpec = new PBEParameterSpec(salt, iterations);

        final PBEKeySpec spec = new PBEKeySpec(password, salt, iterations);
        final SecretKeyFactory fac = SecretKeyFactory.getInstance("PBEWithMD5andDES");
        final SecretKey secretKey;
        try {
            secretKey = fac.generateSecret(spec);
        } catch (InvalidKeySpecException e) {
            throw e;
        }

        final Cipher cipher = Cipher.getInstance("PBEWithMD5andDES");
        if (decrypt) {
            cipher.init(Cipher.DECRYPT_MODE, secretKey, pbeSpec);
        } else {
            cipher.init(Cipher.ENCRYPT_MODE, secretKey, pbeSpec);
        }
        return cipher;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

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From source file:at.tfr.securefs.xnio.MessageHandlerImpl.java

private Cipher getCipher(Message message, int mode)
        throws UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeySpecException,
        NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException {
    if (sksBean == null) {
        return new NullCipher();
    }/*from   ww  w.j a  v  a 2 s.c o m*/
    return sksBean.getCipher(message.getPath(), mode);
}

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