Example usage for org.bouncycastle.crypto.engines ChaChaEngine ChaChaEngine

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.engines ChaChaEngine ChaChaEngine.

Prototype

public ChaChaEngine() 

Source Link

Document

Creates a 20 rounds ChaCha engine.

Usage

From source file:at.archistar.crypto.symmetric.ChaCha20Encryptor.java

@Override
public byte[] encrypt(byte[] data, byte[] randomKeyBytes) throws IOException, InvalidKeyException,
        InvalidAlgorithmParameterException, InvalidCipherTextException, ImpossibleException {

    ChaChaEngine cipher = new ChaChaEngine();
    cipher.init(true, new ParametersWithIV(new KeyParameter(randomKeyBytes), randomIvBytes));

    byte[] result = new byte[data.length];
    cipher.processBytes(data, 0, data.length, result, 0);
    return result;
}

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From source file:at.archistar.crypto.symmetric.ChaCha20Encryptor.java

@Override
public byte[] decrypt(byte[] data, byte[] randomKeyBytes)
        throws InvalidKeyException, InvalidAlgorithmParameterException, IOException, ImpossibleException,
        IllegalStateException, InvalidCipherTextException {

    ChaChaEngine cipher = new ChaChaEngine();
    cipher.init(false, new ParametersWithIV(new KeyParameter(randomKeyBytes), randomIvBytes));

    byte[] result = new byte[data.length];
    cipher.processBytes(data, 0, data.length, result, 0);
    return result;
}

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From source file:ch.lamacrypt.internal.crypto.CPCipher.java

License:Open Source License

public CPCipher() throws IOException {
    this.cipher = new ChaChaEngine();
    this.mac = new Poly1305();
}

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From source file:freenet.crypt.EncryptedRandomAccessBufferType.java

License:GNU General Public License

/**
 * Returns an instance of the SkippingStreamCipher the goes with the current enum value.
 *///from  ww w. j  ava2  s .c o m
public final SkippingStreamCipher get() {
    return new ChaChaEngine();
}

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From source file:shadowsocks.crypto.Chacha20Crypto.java

License:Apache License

@Override
protected StreamCipher createCipher(byte[] iv, boolean encrypt) throws CryptoException {
    StreamCipher c;/*from  ww w  .ja v  a 2 s  .c  om*/
    if (mName.equals(CIPHER_CHACHA20_IETF)) {
        c = new ChaCha7539Engine();
    } else {
        c = new ChaChaEngine();
    }
    ParametersWithIV parameterIV = new ParametersWithIV(new KeyParameter(mKey), iv, 0, mIVLength);
    c.init(encrypt, parameterIV);
    return c;
}

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