Blog

In the context of rising nationalist trends, we need to reinforce tools for trust and collaboration – according to the cofounders of the Israeli startup QED-it. During the World Economic Forum annual event, held last week of January in Davos, the question of cooperation is crucial for governments and enterprises.

At QEDIT, we have a mission to provide privacy preserving systems for the enterprise. For the last two years, we’ve worked on many projects, developing complex SNARK circuits and higher level protocols to tackle different use-cases — asset management, supply chain, real-time risk assessment, predictive maintenance, credit scoring and more.

How Alice, Bob, and Charlie used Zero-Knowledge and Blockchains to launch The Global Sudoku Revolution. This post is inspired by two great papers that make zero-knowledge proofs accessible to a wide audience: [1] How to Explain Zero Knowledge Protocols to Your Children (Quisquater et. al.), and [2]Cryptographic and Physical Zero-Knowledge Proof Systems for Solutions of Sudoku Puzzles (Gradwohl et. al.).

Jonathan Rouach, CEO and co-founder of QEDIT, is very proud to announce that Prof. Shafi Goldwasser has become part of the QEDIT adventure by joining its Scientific Advisory Board. Prof. Shafi Goldwasser is co-creator of Zero-Knowledge Proof cryptography, the basis of QEDIT’s technology, Zero-Knowledge Blockchain. Prof. Shafi Goldwasser was awarded the 2012 Turing Award, and has twice won the Gödel Prize, recognizing her crucial contribution to modern cryptography.

QEDIT’s CEO Jonathan Rouach is happy to announce that Thales has selected QEDIT to join the CyberSecurity program at Station F (Paris), the world’s largest start-up campus. 

We’ve met many blockchain teams, all working hard to deliver “phase one”, an exploration into the blockchain technology. It’s the best way to get a feel and understand the technology trade-offs. Can these consensus machines become the main rails of communication for their industry?

Here is the video of a meetup we hosted recently in our offices in Tel Aviv. Part of the QED-it team (Jon, Kobi & Daniel) presented the applications of cryptographic Zero-Knowledge Proofs on the blockchain. We discussed the theoretical and practical aspects of this powerful tool along with a solution to the “Sudoku purist” incident in the 2013 International Sudoku Championship. 

The exchange of data is intrinsic to business processes, allowing partners to share value, information and assets among many others. Untrusting partners, however, tend to use trusted third parties to manage the data and certify its validity on both ends of the process. In this post we are going to focus on how we can use modern cryptographic techniques to solve this centuries old problem of how to get rid of trusted third parties for business processes.

Blockchain emerged as a new industry in the past 3 years, with bold promises: replace intermediaries with technology solutions, lower the complexity of systems to collaborate among competitors (e.g. banks), enable programmable assets and smart contracts. As veterans and entrepreneurs of the Bitcoin field we were, like many others, very excited by these promises.