I have a slight problem after upgrading to laravel 5.4
When i do a password reset, the email gets generated and sent perfectly, however the token it saves to the user record in the database is as follows:
$2y$10$N0WFuqEkEIFto.CazxYLdOUmY1X9tBHfvDn8iWKUdlq2W9uOc00Ku
But the token it sends to the user to do a password reset is:
bc1c82830bc8ad1356aa5e2a2a5a342ae6c6fabd385add503795cca1a1993e15
My question is why are the two tokens different. and how do i perform a check now to validate if the token exists in the database as i need to get the email address to post to the reset controller.
Thanx in advance.
Token you store in database is hashed same as your password column in users table.
However the token you recieve is not hashed. Thats why they are different
Due to get this password ;
$2y$10$N0WFuqEkEIFto.CazxYLdOUmY1X9tBHfvDn8iWKUdlq2W9uOc00Ku
you have to do
Hash::make('bc1c82830bc8ad1356aa5e2a2a5a342ae6c6fabd385add503795cca1a1993e15');
And you cannot revert this process backwards.
The token in the database is encrypted with Bcrypt. That's why it is different in the database.
The token will still work when you use it.
The token it stores in the database is the same string, but hashed with bcrypt, a secure and adaptive algorithm based on the Blowfish cipher.
You can see the documentation for the vanilla PHP password_hash() function to see how it's built, and the password_verify() function to verify that the hashed string is valid against an unhashed version of it (what is sent to the user, in this case).
Laravel Hashing
Laravel includes its own hashing objects and facades which are documented.
To create a hash:
$string = 'Hello world.';
$hash = Hash::make($string);
To verify the hash against a plain string:
if (Hash::check($string, $hash)) {
// The passwords match...
}
Note: In Laravel 5.4, the email token changed from SHA256 to bcrypt in an undocumented change (as issue #18570 shows), so bear that in mind if you are upgrading from Laravel 5.3 or lower.
Related
I have some different requirement, i don't want to decode the password, but i am building some other app based on SAME DATABASE for LOGIN so what i can do to "encrypt the password value so that it matches the backend password encrypted code".
I want to provide LOGIN from CODEIGNITOR app where data base is created by admin app in LARAVEL ... this is the issue...
So through CodeIgnitor if someone is LOGIN the password will be encrypted equivalent hash encrypted laravel application code.
The Encrypted Password is
$2y$10$cwd15HRgON0ytqkkV5F9zupfUOkqaii7fpbB9Kjd9I7W46LRYY0Km
And the real PASSWOORD is
123456
Please help...
Caddy DZ's answer is right, but to better answer your question you should know that every time you generate a new password with bcrypt function, a new random salt is used.
This leads you to end up getting a different hash for the same password each time you generate one.
The only way you have to verify the correctness of the password, is to use a built-in php function called password_verify.
That function will hash your password (that you provide as a second argument) with the same salt that has been used to generate the stored password (the salt to use is stored in the password hash) you already have in the database:
$password = '123456';
$saved = 'your stored hash';
if (password_verify($password, $saved)) {
echo 'Correct password.';
}
You can check the documentation about password_verify
This is not standard encryption that can be decrypted, this is hashing which is only one (1) way encryption..
To make this work in, you need to use the same hashing algorithm between the two apps (Laravel and CodeIgniter)
For instance laravel uses bcrypt by default to hash the password, so you need to configure CodeIgniter to use the same or vice versa.
bcrypt for codeigniter
I am developing a Laravel application. I am now customising the password reset feature. There is an issue with retrieving the password reset token back from the database because the token string is changed when it is saved in the database from when it is generated.
I explicitly generate the password reset token like this
$token = app('auth.password.broker')->createToken($user)
Then, I tried to retrieve the password reset by using that token like this.
$password_reset = DB::table('password_resets')
->where('token', request('token'))
->first();
I cannot retrieve it. It always return null. Because the token value is different from when it was generated as in the screenshots below.
Why is that happening and how can I fix it?
The token gets hashed before it's stored in the database. It gets hashed in the DatabaseTokenRepository on line 110: 'token' => $this->hasher->make($token).
You won't be able to query by token. You would only be able to check a plain token value against a hashed value with the check method in the HashManager class, for example.
Base on Passport
your code should be something like this
$token = app('auth.password.broker')->createToken($user)->accessToken
I'm running into trouble with authentication handling in my Laravel 5.5. I have installed an Encryptable trait according to this post here. I then used the authentication generator to establish the base routes, views and handler.
I can successfully register new accounts and visually see that all of the data is encrypted, but I cannot successfully authenticate through the login screen.
This seems to be failing during the Auth::attempt($credentials) call. My troubleshooting is pointing to the encryptable trait because when I comment that section out, the authentication works fine.
Can someone offer insight as to how to handle authentication using this method of model encryption?
I have attempted disabling encryption for the username field, but this didn't seem to help. The password field was never being encrypted, becasue it is being hashed by bcrypt.
1st Edit:
So, with an understanding of how traits work... The Encryptable trait seems to be overloading the getAttribute/setAttribute functions. This would mean that Eloquent's querying functions like where, find, etc. will just be "looking at" encrypted values.
2nd Edit:
The source code provided for the Encryptable trait was not returning proper values for unencrypted values. This was changed and authentication was restored. To those using the same code snippet, in the get_attribute() function, change the else block so that it return $value;.
I appreciate all insights,
Dan
This form of encryption will void your ability to search the table for the encrypted fields. You won't be able to reproduce the same string because Laravel uses a random iv when producing encrypted data. An IV, or initialization vector, serves a similar purpose as a salt in hashing, to randomize the stored data.
Due to this randomization of data, you wouldn't even be able to search your table by re-encrypting the search data:
User::where('email', Crypt::encrypt('email#email.com'));
// won't find anything even if an encrypted value of email#email.com exists
Running in an interactive shell allows you to see encrypt returns a completely different value on subsequent runs:
>>> json_decode(base64_decode(Crypt::encrypt('email#email.com')))->value
=> "zpA0LBsbkGCAagxLYB6kiqwJZmm7HSCVm4QrUw6W8SE="
>>> json_decode(base64_decode(Crypt::encrypt('email#email.com')))->value
=> "VKz8CWVzR66cv/J7J09K+TIVwQPxcIg+SDqQ32Sr7rU="
Therefore, you may want to be selective about what you actually encrypt. Encrypt things that are sensitive and you wouldn't use to lookup an entity. This could be something like social security numbers, government IDs, credit card numbers, and bank account numbers.
I have question if you want:
- Why password hash bcrypt in laravel is random unlike sha1?
I test password 12345678in bcrypt and the result are different or with sha1 the same result.
So, how the system recognize password bcrypt in login app?
Thank you
That's just how bcrypt() and Hash::make work. Every time you run the method, you get a different string.
To check if password is correct, Laravel uses Hash::check() method:
Hash::check($passord, $hashedPassword)
Verifying A Password Against A Hash
The check method allows you to verify that a given plain-text string corresponds to a given hash.
Under the hood this method uses password_verify PHP function.
https://laravel.com/docs/5.5/hashing#basic-usage
I want to add a number of test user accounts and it's a lot faster to do it directly from the Database.
There are a couple of fields that I cannot figure out:
secret_token: How do I generate this on the fly? Is it necessary? Can I copy it from other accounts?
password: Even though I have created some accounts the normal way (register page), with the same password, the password fields are different for each user. Therefore I assume it's not a simple copy/paste case (question also applies to changing a user's password from the DB).
Any insight appreciated, thank you.
secret_token is an md5 hash, and is created by the User::generateActivationToken() method. It is used for special account activities like email verification, password reset, and password creation for new accounts.
password is a 60-character salted hash generated by password_hash using the bcrypt function. Since the salt is randomly generated each time a password is created, it will be different from user to user, even if their plaintext passwords are exactly the same. Indeed, this is the purpose of using a salt.
If you are just setting up test accounts for development purposes, you can leave secret_token empty and use password_hash to generate passwords (perhaps by running a custom PHP script from the command line).
If you need to generate accounts in bulk for real users, you may want to set a secret_token but leave the password empty, generate a "password reset" event for each user, and then send them a password creation email so they can choose their own passwords. This is in fact what is done in the createUser controller method:
$data['password'] = "";
...
$user = new User($data);
...
$user->newEventPasswordReset();
You can see the code for newEventPasswordReset here.