TLS certification and key

Hi,

I am trying to setup TLS certification for my network from gateway bridge to network server to application server. I was following the project on this website https://github.com/cloudflare/cfssl

I reach to the following command:

git clone git@github.com:cloudflare/cfssl.git

but when I run it I get an error say:

git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.

how to solve it pls ?

Regards

how the above project relates to chirpstack?
right, is not related
it is better to ask this question on the profile forum

Thanks for your response eugenev …

It is related because I want to use chirpstack certificate (see the following url). I need it for the chirpstack componant .

anyway it’s standalone external third party tool. which is not discussed here.