Example usage for org.bouncycastle.crypto.modes OCBBlockCipher OCBBlockCipher

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.modes OCBBlockCipher OCBBlockCipher.

Prototype

public OCBBlockCipher(BlockCipher hashCipher, BlockCipher mainCipher) 

Source Link

Usage

From source file:org.cryptacular.spec.AEADBlockCipherSpec.java

License:Open Source License

/**
 * Creates a new AEAD block cipher from the specification in this instance.
 *
 * @return  New AEAD block cipher instance.
 *//*from   www . j a va 2 s  . c  o  m*/
@Override
public AEADBlockCipher newInstance() {
    final BlockCipher blockCipher = new BlockCipherSpec(algorithm).newInstance();
    AEADBlockCipher aeadBlockCipher;
    switch (mode) {

    case "GCM":
        aeadBlockCipher = new GCMBlockCipher(blockCipher);
        break;

    case "CCM":
        aeadBlockCipher = new CCMBlockCipher(blockCipher);
        break;

    case "OCB":
        aeadBlockCipher = new OCBBlockCipher(blockCipher, new BlockCipherSpec(algorithm).newInstance());
        break;

    case "EAX":
        aeadBlockCipher = new EAXBlockCipher(blockCipher);
        break;

    default:
        throw new IllegalStateException("Unsupported mode " + mode);
    }
    return aeadBlockCipher;
}

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From source file:org.cryptacular.util.CipherUtilTest.java

License:Open Source License

@DataProvider(name = "aead-block-cipher")
public Object[][] getAeadBlockCipherData() {
    return new Object[][] { new Object[] {
            // Plaintext is NOT multiple of block size
            "I never picked cotton like my mother did", new GCMBlockCipher(new AESEngine()), },
            new Object[] {
                    // Plaintext is multiple of block size
                    "Cogito ergo sum.", new GCMBlockCipher(new AESEngine()), },
            // CCM
            new Object[] {
                    "Thousands of candles can be lit from a single candle and the life "
                            + "of the candle will not be shortened.",
                    new CCMBlockCipher(new TwofishEngine()), },
            // OCB
            new Object[] {
                    "I slept and dreamt life was joy. I awoke and saw that life was "
                            + "service. I acted and behold: service was joy.",
                    new OCBBlockCipher(new AESEngine(), new AESEngine()), }, };
}

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