Decrypt given data previously encoded with aes-128-gcm cipher algo. AES-128 in Galois/Counter Mode for authenticated encryption. Designed for high-performance authenticated encryption, widely used in TLS and IPsec. Highly secure when used correctly, but vulnerable to nonce reuse. Our decryption process assumes the IV string is prepended in the encoded string during the encryption process. You can not decrypt and get the correct results if the IV or passphrase mismatch occurs between encryption and decryption process.