What is the difference between the anti-klepto protocol (also here) and Anti-Exfil? Is it the same thing just with different names or are there differences? It seems they are both addressing the nonce covert channel attack?
1 Answer
Is it the same thing just with different names [...]?
Yes.
This became known as "anti-klepto" initially (full disclosure: I suggested this name). Later, a decision at Blockstream was made to refer to the project as "anti-exfil", for the simple reason that the word "kleptography" is a very rare term that probably only cryptography experts have heard of (as opposed to "exfiltration", which is understandable to a wider audience).