Encrypt given data using aes-256-cbc-hmac-sha256 cipher algo. AES-256-CBC combined with HMAC-SHA256 for authenticated encryption, offering stronger integrity protection. An improved variant over SHA-1-based authentication, widely used in secure communications. Secure and recommended for environments requiring both encryption and integrity verification. Our encryption process prepends the IV string used during the encryption process in the encrypted data so that it can be used during decryption.