* Uses SMB3-compliant nonce generation with guaranteed uniqueness.
     *
     * @return nonce appropriate for the dialect (16 bytes for GCM, 12 bytes for CCM)
     */
    public byte[] generateNonce() {
        final byte[] nonce = new byte[isGCMCipher() ? 16 : 12];

        if (isGCMCipher()) {
            // SMB 3.1.1 GCM: 96-bit random/fixed + 32-bit counter for guaranteed uniqueness

                testEncryptionKey, testDecryptionKey);

        // When - Generate multiple nonces
        byte[] nonce1 = gcmContext.generateNonce();
        byte[] nonce2 = gcmContext.generateNonce();
        byte[] nonce3 = gcmContext.generateNonce();

        // Then - Nonces should be unique (SMB3 compliant: random + counter)
        assertFalse(Arrays.equals(nonce1, nonce2), "Nonces should be different");