return false;
        }
    }

    /**
     * Helper class to hold encryption results
     */
    private static class EncryptionResult {
        final byte[] ciphertext;
        final byte[] authTag;

        EncryptionResult(byte[] ciphertext, byte[] authTag) {
            this.ciphertext = ciphertext;
            this.authTag = authTag;
        }
    }

    /**