THE CODE IN THIS BLOG POST IS NOT AUDITED AND SHOULD NOT BE USED IN PRODUCTION In Zero Knowledge Lottery we introduced a revolutionary zero knowledge lottery scheme. As discussed in the article, it’s possible to implement the scheme by modifying Tornado Cash Nova’s (Nova) code. In this two part…

Imagine a system where a user can move funds into and take an arbitrary amount of funds out with having a plausible explanation where the funds came from. Introducing Zero Knowledge Lottery (ZK-lottery). A protocol that allows users to participate in a lottery and win money without leaking any information…

Tornado Cash is a service on the Ethereum blockchain (and on a couple other networks) that allows users to deposit Ether or tokens and hide the source of the funds with the power of modern cryptography; users can deposit funds and then withdraw them to make it impossible to connect…

Executing complex functions on chain Ethereum has always been a big no-no, something that you should never do. Blockchain computation is very expensive as all the nodes are needed to execute the same calculation to verify its correctness. StarkWare is one of the Ethereum scaling services that is attempting to…

Augur has a proven track record on resolving oracle questions correctly on markets that people care about. However, to enable this level of security the resolution time is slow. Augur v2 added a fast disputing mechanism that enables reporting rounds to be really fast at beginning and only slow down…