is it possible to create username and password for clients?

[jbsaibes]

i was wondering if it is possible to assign a username/password for clients that would connect to the broker?

[nopnop2002]

This is a good idea.
Try latest.

[jbsaibes]

yes i just tried and it works thanks! next request :) two nice features to have :

1. having a list of clients ( cid, user and password) that broker can use for authentication
2. having list of topics that above clients can subscribe/publish to

[nopnop2002]

Are there any open source brokers with this kind of functionality?

If there is one, I would like to imitate its implementation and settings..

There are no plans to implement unique access restrictions specific to this broker.

[jbsaibes]

yes there is https://github.com/eclipse/mosquitto it one of the most popular mqtt brokers

[nopnop2002]

I'm using Mosquito, but I don't know the settings to achieve this.

In mosquitto, what settings do I need to do to achieve this?

having a list of clients ( cid, user and password) that broker can use for authentication
having list of topics that above clients can subscribe/publish to

[jbsaibes]

https://mosquitto.org/man/mosquitto-conf-5.html check general options>acl file option and "password_file" option .there is a description there.

[nopnop2002]

Thank you for the information.
I'll try to investigate, but it will take some time.

If we use a password file, we will need a file system like SPIFFS.