mcrypt is deprecated, what is the alternative?

Question

The mcrypt-extension is deprecated will be removed in PHP 7.2 according to the comment posted here. So I am looking for an alternative way to encrypt passwords.

Righ

Answer 1

I am using this on PHP 7.2.x, it's working fine for me:

public function make_hash($userStr){
        try{
            /** 
             * Used and tested on PHP 7.2x, Salt has been removed manually, it is now added by PHP 
             */
             return password_hash($userStr, PASSWORD_BCRYPT);
            }catch(Exception $exc){
                $this->tempVar = $exc->getMessage();
                return false;
            }
        }

and then authenticate the hash with the following function:

public function varify_user($userStr,$hash){
        try{
            if (password_verify($userStr, $hash)) {
                 return true;
                }
            else {
                return false;
                }
            }catch(Exception $exc){
                $this->tempVar = $exc->getMessage();
                return false;
            }
        }

Example:

  //create hash from user string

 $user_password = $obj->make_hash2($user_key);

and to authenticate this hash use the following code:

if($obj->varify_user($key, $user_key)){
      //this is correct, you can proceed with  
    }

That's all.