Jwt Authentication error Argument 3 passed to Lcobucci\JWT\Signer\Hmac::doVerify()

Question

I'm working on a project to learn laravel, I saw a couple of tutorials to use jwt auth in this. It was working good but now is show an error not always but I don't know why. this is it:

Argument 3 passed to Lcobucci\JWT\Signer\Hmac::doVerify() must be an instance of Lcobucci\JWT\Signer\Key, null given, called in C:\xampp\htdocs\inmobiliaria\vendor\lcobucci\jwt\src\Signer\BaseSigner.php on line 42

Sometimes it works but not another. so I don't know what can I do. I tried with

php artisan cache:clear
php artisan config:clear
php artisan jwt:secret

but the problem still there, sometimes i get good answer from server(200) but the most part of then al bad (500).

Screenshots

enter image description here

The authentication isn't the problem. This error appear when i try to make class::all(); method in php: public function all() { $properties = Property::with('images')->get(); return response()->json([ 'properties' => $properties ], 200); } — Esteban, Nov 20 '18 at 22:05
Hi @Esteban, I have the same issue, did you find the solution? — Max M., Nov 27 '18 at 11:28
I have the same issue. Type error: Argument 3 passed to Lcobucci\JWT\Signer\Hmac::doVerify() must be an instance of Lcobucci\JWT\Signer\Key, null given, called in \vendor\lcobucci\jwt\src\Signer\BaseSigner.php on line 42 It appears when I make many queries (some times it can be with similar params) — Oleksii.B, Dec 17 '18 at 12:57

score 89 · Accepted Answer · answered Oct 10 '19 at 16:45

89

Here's complete snippet

php artisan key:generate
php artisan jwt:secret
php artisan cache:clear
php artisan config:clear

Before run above commands make sure there is install jwt package, than check its config file name jwt.php in config folder.

answered Oct 10 '19 at 16:45

Muhammad Sulman

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Tiago Gouvêa · Answer 2 · 2019-08-06T19:39:36.877

30

In fact it's the right thing to solve it:

php artisan key:generate
php artisan jwt:secret

edited Aug 06 '19 at 19:39

answered Dec 10 '18 at 10:49

Tiago Gouvêa

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What happen @Esteban? – Tiago Gouvêa Dec 19 '18 at 09:39
1

@Esteban make sure please you have `'secret' => env('JWT_SECRET'),` and `'passphrase' => env('JWT_PASSPHRASE'),` in your config/jwt.php – Kirill Oficerov Dec 22 '18 at 10:49
@Esteban on lumen I don't need the config/jwt.php file to work, when using tymon/jwt-auth package. On laravel it's really needed? – Tiago Gouvêa Jan 16 '19 at 18:54
1

Try this: 1) php artisan cache:clear 2) php artisan config:clear 3) php artisan key:generate 4) php artisan jwt:secret – Bobby Axe Aug 06 '19 at 14:31

Dan · Answer 3 · 2021-10-04T09:26:59.913

This error can occur when

JWT_SECRET is missing on the .env
JWT_SECRET is commented in the .env
The value of JWT_SECRET is wrong.

In my case, running php artisan jwt:secret it was appending the key on the current JWT_SECRET. So checking my .env file, the value of JWT_SECRET was very long and wrong (it should be 64 chars long).

To solve it:

Open the .env and remove the JWT_SECRET value (note that you have to remove it and not comment it).
Run php artisan jwt:secret
Run php artisan cache:clear && php artisan config:clear

score 4 · Answer 4 · answered Dec 09 '20 at 15:24

4

php artisan jwt:secret
php artisan config:cache

These both command will be enough

answered Dec 09 '20 at 15:24

Recep Gümüş

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score 2 · Answer 5 · answered Jan 29 '20 at 11:20

I came across this error when I deployed my application after testing and everything else worked well on the local server.

I noticed the following;

It's possible that you are getting this error when you uploaded the applications before implementing the JWT and re-uploaded directly via the Cpanel upload without reuploading the .env file.
- if this is the case, the simplest way to solve this is my merely adding the JWT:key in your .env file (at the bottom) ef

JWT_SECRET=roCZauuldMpw5i4039393939393372y98bEWumqd9ls7Uk8DEpr0gIZ6WIWB

Hope this helps :)

score 1 · Answer 6 · answered May 27 '21 at 22:36

This can also happen when using the Laravel Vapor service if you haven't remembered to add the JWT_SECRET to the env file used by Vapor.

In that case just pull the .env file down for the current environment (in this case staging):

vapor env:pull staging

and add the JWT_SECRECT line to it, followed by a push:

vapor env:push staging

and re-deploy.

score 1 · Answer 7 · answered Dec 04 '21 at 17:54

1

I had this problem with my Laravel 8.x and PHP 7.4 so I solved the problem by updating my keys just with these commands:

php artisan key:generate
php artisan jwt:secret

answered Dec 04 '21 at 17:54

Pejman Kheyri

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score 0 · Answer 8 · answered Apr 19 '20 at 23:42

I have resolved the same on Hostinger - Shared Hosting in a bit different manner than others explained. On shared hosting's user will not have access to shell/cmd/ssh access to the server - So I have executed the commands using composer - Thanks to Ángel Carlos del Pozo Muela for sharing the idea in https://stackoverflow.com/a/48682668 for a different solution but it worked in my case here as well

I have updated the composer.json >> script tag with extra values

"scripts": {
    "pre-generate-key": [
        "@php artisan key:generate",
         "@php artisan cache:clear",
        "@php artisan config:clear"
    ],"post-autoload-dump": [
        "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
        "@php artisan package:discover --ansi"
    ]

Followed by that I have created a new parameter in .env file using going to hostinger file manager and deployed the changes.

 JWT_SECRET={{value}}

on successful completion of deployment - Tested the all service -> all services started working fine - then I removed the "pre-generate-key" bit from composer.json and re-deployed code

score 0 · Answer 9 · answered Feb 10 '21 at 21:38

0

i'm working on App platform - Digital Ocean php artisan jwt:secret does it for me -> it just genarates a new secret and that's what's messing (just check your .env file)

answered Feb 10 '21 at 21:38

user3523586

1

score 0 · Answer 10 · answered Aug 17 '22 at 06:19

0

Problem Statement :

TypeError: Argument 3 passed to Lcobucci\JWT\Signer\Hmac::doVerify() m
Facing above problem

Larave version:    8.77
Php Versionn: 7.4

Solution works 100%

php artisan key:generate
php artisan jwt:secret
php artisan cache:clear

answered Aug 17 '22 at 06:19

Kaleemullah

446
3
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score 0 · Answer 11 · edited Oct 28 '22 at 12:49

0

Here is the solution it will work for me

php artisan key:generate

php artisan jwt:secret

php artisan cache:clear

php artisan config:clear

Before running the above commands make sure there is an install jwt package, then check its config file name jwt.php in the config folder

edited Oct 28 '22 at 12:49

Suraj Rao

29,388
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answered Oct 28 '22 at 12:47

sivan

57
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Jwt Authentication error Argument 3 passed to Lcobucci\JWT\Signer\Hmac::doVerify()

11 Answers11