Examples of AEADParameters

Examples of org.bouncycastle.crypto.params.AEADParameters

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        KeyParameter keyParam;

        if (params instanceof AEADParameters)
        {
            AEADParameters param = (AEADParameters)params;

            nonce = param.getNonce();
            initialAssociatedText = param.getAssociatedText();

            int macSizeBits = param.getMacSize();
            if (macSizeBits < 96 || macSizeBits > 128 || macSizeBits % 8 != 0)
            {
                throw new IllegalArgumentException("Invalid value for MAC size: " + macSizeBits);
            }

            macSize = macSizeBits / 8;
            keyParam = param.getKey();
        }
        else if (params instanceof ParametersWithIV)
        {
            ParametersWithIV param = (ParametersWithIV)params;

            nonce = param.getIV();
            initialAssociatedText  = null;
            macSize = 16;
            keyParam = (KeyParameter)param.getParameters();
        }
        else
        {
            throw new IllegalArgumentException("invalid parameters passed to GCM");
        }
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Examples of org.bouncycastle.crypto.params.AEADParameters

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    {
        this.forEncryption = forEncryption;

        if (params instanceof AEADParameters)
        {
            AEADParameters param = (AEADParameters)params;

            nonce = param.getNonce();
            initialAssociatedText = param.getAssociatedText();
            macSize = param.getMacSize() / 8;
            keyParam = param.getKey();
        }
        else if (params instanceof ParametersWithIV)
        {
            ParametersWithIV param = (ParametersWithIV)params;

            nonce = param.getIV();
            initialAssociatedText = null;
            macSize = macBlock.length / 2;
            keyParam = param.getParameters();
        }
        else
        {
            throw new IllegalArgumentException("invalid parameters passed to CCM");
        }
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Examples of org.bouncycastle.crypto.params.AEADParameters

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        byte[] nonce;
        CipherParameters keyParam;

        if (params instanceof AEADParameters)
        {
            AEADParameters param = (AEADParameters)params;

            nonce = param.getNonce();
            initialAssociatedText = param.getAssociatedText();
            macSize = param.getMacSize() / 8;
            keyParam = param.getKey();
        }
        else if (params instanceof ParametersWithIV)
        {
            ParametersWithIV param = (ParametersWithIV)params;

            nonce = param.getIV();
            initialAssociatedText = null;
            macSize = mac.getMacSize() / 2;
            keyParam = param.getParameters();
        }
        else
        {
            throw new IllegalArgumentException("invalid parameters passed to EAX");
        }
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Examples of org.bouncycastle.crypto.params.AEADParameters

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        KeyParameter keyParameter;

        byte[] N;
        if (parameters instanceof AEADParameters)
        {
            AEADParameters aeadParameters = (AEADParameters)parameters;

            N = aeadParameters.getNonce();
            initialAssociatedText = aeadParameters.getAssociatedText();

            int macSizeBits = aeadParameters.getMacSize();
            if (macSizeBits < 64 || macSizeBits > 128 || macSizeBits % 8 != 0)
            {
                throw new IllegalArgumentException("Invalid value for MAC size: " + macSizeBits);
            }

            macSize = macSizeBits / 8;
            keyParameter = aeadParameters.getKey();
        }
        else if (parameters instanceof ParametersWithIV)
        {
            ParametersWithIV parametersWithIV = (ParametersWithIV)parameters;
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Examples of org.bouncycastle.crypto.params.AEADParameters

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     * @return byte array with the cipher text
     * @throws RuntimeException
     */
    public byte[] encrypt(final byte[] IV, final byte[] message) throws RuntimeException {

        AEADParameters aeadParams = new AEADParameters(
                new KeyParameter(key), TAG_LENGTH,
                IV,
                authData);

        cipher.init(true, aeadParams);
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Examples of org.bouncycastle.crypto.params.AEADParameters

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     * @return byte array with the plain text
     * @throws RuntimeException
     */
    public byte[] decrypt(byte[] IV, byte[] cipherText) throws RuntimeException {

        AEADParameters aeadParams = new AEADParameters(
                new KeyParameter(key), TAG_LENGTH,
                IV,
                authData);

        cipher.init(false, aeadParams);
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Examples of org.bouncycastle.crypto.params.AEADParameters

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     * @return byte array with the cipher text
     * @throws RuntimeException
     */
    public byte[] encrypt(final byte[] IV, final byte[] message) throws RuntimeException {

        AEADParameters aeadParams = new AEADParameters(
                new KeyParameter(key), TAG_LENGTH,
                IV,
                authData);

        cipher.init(true, aeadParams);
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Examples of org.bouncycastle.crypto.params.AEADParameters

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     * @return byte array with the plain text
     * @throws RuntimeException
     */
    public byte[] decrypt(byte[] IV, byte[] cipherText) throws RuntimeException {

        AEADParameters aeadParams = new AEADParameters(
                new KeyParameter(key), TAG_LENGTH,
                IV,
                authData);

        cipher.init(false, aeadParams);
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Examples of org.bouncycastle.crypto.params.AEADParameters

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    BlockCipher cipher = AES.createCipher(secretKey, forEncryption);

    // Create GCM cipher with AES
    GCMBlockCipher gcm = new GCMBlockCipher(cipher);

    AEADParameters aeadParams = new AEADParameters(new KeyParameter(secretKey.getEncoded()),
                                             AUTH_TAG_BIT_LENGTH,
                                             iv,
                                             authData);
    gcm.init(forEncryption, aeadParams);
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Examples of org.bouncycastle.crypto.params.AEADParameters

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    byte[] alteredCiphertext = Arrays.clone(originalCiphertext);   
    alteredCiphertext[8] = (byte) (alteredCiphertext[8] ^ 0x08); // <<< Change 100$ to 900$
   
    // Decrypt with BouncyCastle implementation of CipherInputStream
    AEADBlockCipher cipher = new GCMBlockCipher(new AESEngine());
    cipher.init(false, new AEADParameters(new KeyParameter(randomKey), 128, randomIv));
   
    try {
      readFromStream(new org.bouncycastle.crypto.io.CipherInputStream(new ByteArrayInputStream(alteredCiphertext), cipher));
      //             ^^^^^^^^^^^^^^^ INTERESTING PART ^^^^^^^^^^^^^^^^ 
      //
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