1jsmnwkj

1function sif($action, $string) {
2    $output = false;
3
4    $encrypt_method = "AES-256-CBC";
5    $secret_key = 'oIp2cWHhlXK6OYMI0CfBCFRT';
6    $secret_iv = 'TGjiCJdRj6UW161qtqkjFGTZ';
7
8    // hash
9    $key = hash('sha256', $secret_key);
10    
11    // iv - encrypt method AES-256-CBC expects 16 bytes - else you will get a warning
12    $iv = substr(hash('sha256', $secret_iv), 0, 16);
13
14    if( $action == 'encrypt' ) {
15        $output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv);
16        $output = base64_encode($output);
17    }
18    else if( $action == 'decrypt' ){
19        $output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv);
20    }
21
22    return $output;
23}