Be part of JetBrains PHPverse 2026 on June 9 – a free online event bringing PHP devs worldwide together.
I want to implement a text chat app that users can send and receive messages and the message which stored in the data base in encrypted and when the receiver wants to see it decrypt the message and see it .......and i want to do it only using PHP and java script with out Frame works .....any one who can help me please !!!!
Perhaps this post could help you.
https://laracasts.com/discuss/channels/laravel/encrypting-model-data
But I think it's quite dangerous to do this unless you really need to encrypt datas.
For example, your server crashes and you need to reinstall the app on another server. If the encryption key changes (key app in the .env file), you will never retrieve your datas.
@vincent15000 So what is your suggestion for implement this text chat app using PHP with out any framework ?
@habte Without framework ? Sorry I didn't notive this in your message (even you have written it).
You should change the category of this post to Assistance and not Laravel ;).
Well ... without any framework, you can use the openssl library from PHP.
@vincent15000 sorry I changed the category to Assistance ....and what I confused is here how can i create the public and private key to each user and how can I encrypt and decrypt the message using those keys ?
@habte English link instead of French https://www.php.net/manual/en/function.openssl-encrypt.php
Did you try searching for tutorials on how to use it?
@habte Do you need a public / private keys pair for each user ?
@vincent15000 yeah i want to that in order to encrypt and decrypt the message that are sending for each user
@Sinnbeck yeah I was searching but i didn't get it yet! do you have any suggestion please?
@habte You will need to save the keys in the database.
Generating a public / private keys pair can be done with the openssl library too.
https://www.php.net/manual/en/function.openssl-pkey-new.php
(this time the English link) ;)
I never worked with this library, what I would do is to try the different openssl functions to understand how they work. You can try in a PHP sandbox for example.
@vincent15000 Ok but then after i generate the public/private key for each user how can i encrypt /decrypt the message in the database
@habte Look at the library ;). You have a lot of functions which will help you.
I assume this is a project for learning and not something that you are planning to use for a real product? Just curious :)
yeah I was searching ...
Google is not very good for searching, try/use DuckDuckGo
https://stackoverflow.com/questions/16600708/how-do-you-encrypt-and-decrypt-a-php-string
@sr57 What's that ? DuckDuckGo ?
@vincent15000 Google alternative without ads and tracking. They have an ad blocker as well
@Sinnbeck I first thought it was a joke ... I didn't know ;).
@vincent15000 There's also Brave which is cool and privacy-friendly
Please or to participate in this conversation.