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Security

Configuration

Laravel aims to make implementing authentication very simple. In fact, almost everything is configured for you out of the box. The authentication configuration file is located at app/config/auth.php, which contains several well documented options for tweaking the behavior of the authentication facilities.

By default, Laravel includes a User model in your app/models directory which may be used with the default Eloquent authentication driver. Please remember when building the Schema for this Model to ensure that the password field is a minumum of 60 characters.

If your application is not using Eloquent, you may use the database authentication driver which uses the Laravel query builder.

Storing Passwords

The Laravel Hash class provides secure Bcrypt hashing:

Hashing A Password Using Bcrypt

$password = Hash::make('secret');

Verifying A Password Against A Hash

if (Hash::check('secret', $hashedPassword))
{
	// The passwords match...
}

Authenticating Users

To log a user into your application, you may use the Auth::attempt method.

if (Auth::attempt(array('email' => $email, 'password' => $password)))
{
	// The user's credentials are valid...
}

Take note that email is not a required option, it is merely used for example. You should use whatever column name corresponds to a "username" in your database.

If you would like to provide "remember me" functionality in your application, you may pass true as the second argument to the attempt method, which will keep the user authenticated indefinitely (or until they manually logout):

Authenticating A User And "Remembering" Them

if (Auth::attempt(array('email' => $email, 'password' => $password), true))
{
	// The user is being remembered...
}

Note: If the attempt method returns true, the user is considered logged into the application.

Once a user is authenticated, you may access the User model / record:

Accessing The Logged In User

$email = Auth::user()->email;

Logging A User Out Of The Application

Auth::logout();

Protecting Routes

Route filters may be used to allow only authenticated users to access a given route. Laravel provides the auth filter by default, and it is defined in app/filters.php.

Protecting A Route

Route::get('profile', array('before' => 'auth', function()
{
	// Only authenticated users may enter...
}));

Encryption

Laravel provides facilities for strong AES-256 encryption via the mcrypt PHP extension:

Encrypting A Value

$encrypted = Crypt::encrypt('secret');

Note: Be sure to set a 32 character, random string in the key option of the app/config/app.php file. Otherwise, encrypted values will not be secure.

Decrypting A Value

$decrypted = Crypt::decrypt($encryptedValue);

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