title: custom auth and hashing laravel 5.1
body: <p>I have an existing database.</p>
  
  <pre><code>users :
  username =&gt; varchar
  password =&gt; md5 hashing
  </code></pre>
  
  <p>I am new to laravel, I was try to create simple login and register from laravel <a href="http://laravel.com/docs/master/authentication#included-routing" rel="nofollow noreferrer">docs</a>, thats work fine, 
  but in docs are create for laravel,
  now I want to create same login/register but with existing datas.</p>
  
  <p>I was read some Question from <a href="https://stackoverflow.com/questions/17710897/how-to-use-sha1-encryption-instead-of-bcrypt-in-laravel-4/17719586#17719586">How to use SHA1 encryption instead of BCrypt in Laravel 4?</a>
  but I dont understand how to use it.</p>
  
  <p>any adv?</p>
  
  <p>sory for my bad grammer.</p>