1: <?php namespace Laravel;
 2: 
 3: class Hash {
 4: 
 5:     /**
 6:      * Hash a password using the Bcrypt hashing scheme.
 7:      *
 8:      * <code>
 9:      *      // Create a Bcrypt hash of a value
10:      *      $hash = Hash::make('secret');
11:      *
12:      *      // Use a specified number of iterations when creating the hash
13:      *      $hash = Hash::make('secret', 12);
14:      * </code>
15:      *
16:      * @param  string  $value
17:      * @param  int     $rounds
18:      * @return string
19:      */
20:     public static function make($value, $rounds = 8)
21:     {
22:         $work = str_pad($rounds, 2, '0', STR_PAD_LEFT);
23: 
24:         // Bcrypt expects the salt to be 22 base64 encoded characters including
25:         // dots and slashes. We will get rid of the plus signs included in the
26:         // base64 data and replace them with dots.
27:         if (function_exists('openssl_random_pseudo_bytes'))
28:         {
29:             $salt = openssl_random_pseudo_bytes(16);
30:         }
31:         else
32:         {
33:             $salt = Str::random(40);
34:         }
35: 
36:         $salt = substr(strtr(base64_encode($salt), '+', '.'), 0 , 22);
37: 
38:         return crypt($value, '$2a$'.$work.'$'.$salt);
39:     }
40: 
41:     /**
42:      * Determine if an unhashed value matches a Bcrypt hash.
43:      *
44:      * @param  string  $value
45:      * @param  string  $hash
46:      * @return bool
47:      */
48:     public static function check($value, $hash)
49:     {
50:         return crypt($value, $hash) === $hash;
51:     }
52: 
53: }