Example usage for org.bouncycastle.crypto StreamBlockCipher processBytes

Introduction

In this page you can find the example usage for org.bouncycastle.crypto StreamBlockCipher processBytes.

Prototype

public int processBytes(byte[] in, int inOff, int len, byte[] out, int outOff) throws DataLengthException 

Source Link

Usage

From source file:com.github.horrorho.inflatabledonkey.chunk.engine.ChunkDecrypters.java

License:Open Source License

public static Optional<byte[]> decrypt(byte[] key, StreamBlockCipher cipher, byte[] data, int offset,
        int length) {
    try {/*from  www .  ja v  a 2s . c o  m*/
        KeyParameter keyParameter = new KeyParameter(key);
        cipher.init(false, keyParameter);
        byte[] decrypted = new byte[length];
        cipher.processBytes(data, offset, length, decrypted, 0);
        return Optional.of(decrypted);

    } catch (DataLengthException ex) {
        logger.warn("-- decrypt() - exception: ", ex);
        return Optional.empty();
    }
}

---

From source file:shadowsocks.crypto.AESCrypto.java

License:Apache License

@Override
protected void process(byte[] in, ByteArrayOutputStream out, boolean encrypt) {
    int size;/*from  w  w w. j  a v a  2 s. c o  m*/
    byte[] buffer = new byte[in.length];
    StreamBlockCipher cipher;
    if (encrypt) {
        cipher = (StreamBlockCipher) mEncryptCipher;
    } else {
        cipher = (StreamBlockCipher) mDecryptCipher;
    }
    size = cipher.processBytes(in, 0, in.length, buffer, 0);
    out.write(buffer, 0, size);
}

---