Koh Wei JieinPrivacy & Scaling ExplorationsRelease Announcement: MACI 1.0The Privacy & Scaling Explorations team is proud to release version 1.0 of Minimal Anti-Collusion Infrastructure (MACI). MACI enables…7 min read·Oct 12, 2021----
Koh Wei JieinZeroKnowledgeZero-knowledge Virtual Machines, the Polaris License, and Vendor Lock-inRecently released frameworks for building zero-knowledge applications, such as Zinc and Cairo, allow developers to relatively easily write…9 min read·Mar 11, 2021----
Koh Wei JieDeanonymising the Kucoin HackerKucoin, a well-known cryptocurrency exchange, was recently hacked. It lost more than 150 million USD worth of funds. The perpetrator used…8 min read·Oct 30, 2020--1--1
Koh Wei JieRestarting the Semaphore random value generation processIn early March 2020, I announced a series of computational steps that would create a random value which we would use to start phase 2 of…4 min read·Mar 22, 2020--1--1
Koh Wei JieRelease announcement: Semaphore, a zero-knowledge gadget for EthereumWe are excited to announce that Semaphore, a generic privacy layer for Ethereum applications based on zk-SNARks, has been fully audited…4 min read·Mar 3, 2020----
Koh Wei JiePrivate voting and whistleblowing in Ethereum using SemaphoreIn a previous post, I wrote a technical explanation of Semaphore, a zero-knowledge privacy gadget built on Ethereum. Since then, we have…4 min read·Dec 20, 2019----
Koh Wei JieinCoinmonksAnnouncing the Perpetual Powers of Tau Ceremony to benefit all zk-SNARK projectsThe Ethereum community has responded positively to our technical blog post about Semaphore, a zero-knowledge signalling gadget built on…4 min read·Sep 11, 2019--2--2
Koh Wei JieinCoinmonksTo Mixers and Beyond: presenting Semaphore, a privacy gadget built on EthereumThis year, Ethereum has undergone a privacy renaissance of sorts. Encouraged by prominent members of the community, researchers…8 min read·Sep 3, 2019--4--4
Koh Wei JieZero-knowledge proofs, a board game, and leaky abstractions: how I learned zk-SNARKs from scratchA great way to learn a new skill is to build something with it. This is particularly true in the cryptocurrency and blockchain space…9 min read·Dec 26, 2018--3--3
Koh Wei JieinMetaMaskEIP712 is here: What to expect and how to use itEthereum wallets like MetaMask will soon introduce the EIP712 standard for typed message signing. This standard allows wallets to display…8 min read·Sep 19, 2018--29--29