Java 类org.bouncycastle.crypto.tls.TlsFatalAlert 实例源码

protected void adjustECParameter(ECDHEServerKeyExchangeMessage message) {
    tlsContext.setSelectedCurve(NamedCurve.getNamedCurve(message.getNamedCurve().getValue()));
    // TODO avoid BC tool
    byte[] ecParams = ArrayConverter.concatenate(new byte[] { message.getCurveType().getValue() }, message
            .getNamedCurve().getValue(), ArrayConverter.intToBytes(message.getPublicKeyLength().getValue(), 1),
            message.getPublicKey().getValue());
    InputStream is = new ByteArrayInputStream(ecParams);
    ECPublicKeyParameters publicKeyParameters = null;
    try {
        publicKeyParameters = ECCUtilsBCWrapper.readECParametersWithPublicKey(is);
    } catch (TlsFatalAlert alert) {
        throw new AdjustmentException("Problematic EC parameters, we dont support these yet", alert);
    } catch (IOException ex) {
        throw new AdjustmentException("EC public key parsing failed", ex);
    }
    CustomECPoint publicKey = new CustomECPoint(publicKeyParameters.getQ().getRawXCoord().toBigInteger(),
            publicKeyParameters.getQ().getRawYCoord().toBigInteger());
    tlsContext.setServerEcPublicKey(publicKey);
}

public byte[] decodeCiphertext(byte[] receivedMAC, byte[] additionalData, byte[] ciphertext)
throws IOException {

     KeyParameter macKey = initRecordMAC(decryptCipher);

     byte[] calculatedMAC = PolyKeyCreator.create(macKey, additionalData, ciphertext);

     if (!Arrays.constantTimeAreEqual(calculatedMAC, receivedMAC))
     {
         throw new TlsFatalAlert(AlertDescription.bad_record_mac);
     }

     byte[] output = new byte[ciphertext.length];
     decryptCipher.processBytes(ciphertext, 0, ciphertext.length, output, 0);

     return output;
 }

public void send(byte[] buf, int off, int len)
        throws IOException {
    if (len > getSendLimit()) {
        throw new TlsFatalAlert(AlertDescription.record_overflow);
    }
    DatagramPacket packet = new DatagramPacket(buf, off, len);
    socket.send(packet);
}