<?php

class authentication
{
    public $key;

    function __construct()
    {
        $this->key = "password";
    }
    function encrypt_password($password)
    {
        $cipher = "AES-256-CBC"; // Encryption cipher
        $iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length($cipher)); // Generate IV
        $encrypted = openssl_encrypt($password, $cipher, $this->key, 0, $iv); // Encrypt the password

        // Combine encrypted password and IV for storage
        return base64_encode($encrypted . "::" . $iv);
    }

    function decrypt_password($encryptedPassword)
    {
        $cipher = "AES-256-CBC";
        list($encryptedData, $iv) = explode("::", base64_decode($encryptedPassword), 2);

        return openssl_decrypt($encryptedData, $cipher, $this->key, 0, $iv);
    }
}