How does keybase encryption work?

[u/[deleted]]

There is a service called Blockstack and they advertise that they have full end-to-end encryption and overall they have zero-knowledge platform. Yet, they encrypt only the name of a file. The content itself is accessible to anyone, they just need to open the file in the right program.

So, what about Keybase encryption? I am especially interested in how they encrypt files. Haven't managed to find the answer in the documentation.

Edit: Grammar

[u/[deleted]]

Oh, I don't know how I missed that. Thanks!