> after [installing the Keybase app] and starting a chat with your friend, you still need to verify that the server sent you the right encryption key. Since you can't host your own server, it has to be the Keybase, Inc's server that sends you the encryption key of your friend. [...] How does this work with Keybase?
> there is no way to display [the 'signature chain' of the person I'm chatting with], I have to trust the server to send me the right key. [Yet the client] displays a banner above the chat saying "end-to-end encrypted".
It's all marketing department with a sprinkling of blockchain magic.
> after [installing the Keybase app] and starting a chat with your friend, you still need to verify that the server sent you the right encryption key. Since you can't host your own server, it has to be the Keybase, Inc's server that sends you the encryption key of your friend. [...] How does this work with Keybase?
> there is no way to display [the 'signature chain' of the person I'm chatting with], I have to trust the server to send me the right key. [Yet the client] displays a banner above the chat saying "end-to-end encrypted".
It's all marketing department with a sprinkling of blockchain magic.
https://security.stackexchange.com/q/222055/10863