We're always on the lookout for passionate people to join us to work on the most exciting projects in the ZK space. If you love finding bugs and are interested in ZK, you might want to take our new challenge: zkBank.
This challenge is for everyone, and you'll have to learn a bit of everything to solve it. If you think you have what it takes, then give it a go: https://github.com/zksecurity/zkBank/tree/main
In this final post of the series, we extend univariate KZG commitments to multilinear polynomials through Mercury. Building on Gemini, we fold half of the variables at once, use polynomial division to bind this large fold to the original commitment and reduce the remaining multilinear evaluations to a batched inner product check. We then walk through the end-to-end opening protocol. We conclude by examining its proof size, prover cost and verifier cost.
In this blog post, we extend univariate KZG commitments to multilinear polynomials through Gemini. We introduce recursive partial evaluations, derive the split-and-fold identity and express each fold as a univariate identity that can be checked using KZG openings. We then walk through the end-to-end opening protocol. We conclude by examining its proof size, prover cost, and verifier cost.
Many of us are using AI to generate code. Vibe coding cryptography is especially sensitive - you have to uphold strict mathematical correctness. This can lead to wrong security guarantees and soundness bugs. We will discuss what are some patterns to do it well.
Think you have what it takes to join zkSecurity? We're raising the bar with a second challenge! Now candidates must complete both zkBank and our new Curve Machine challenge to prove their skills across the full spectrum of ZK security. Are you ready to take on both challenges?
We're thrilled to introduce our new site, [bugs.zksecurity.xyz](https://bugs.zksecurity.xyz/), a hub for exploring past vulnerabilities in ZK circuits. Dive into our growing catalog of documented bugs and learn how we've reproduced some with comprehensive scripts. Discover evaluations of prominent security tools like Circomspect and Picus, and see where they shine or stumble. We're calling on the community to join us in expanding this invaluable resource, whether by adding bugs, reproducing them, or improving our platform. Let's collaborate to elevate ZK security together!
Check out our latest blog post where we dive into the world of Zero-Knowledge Proof (ZKP) vulnerabilities, sharing our insights from replicating known ZK circuit weaknesses. We’ve launched a GitHub repo with detailed scripts to help you understand, reproduce, and learn from these vulnerabilities. Discover how this hands-on approach aids in grasping attack vectors, testing fixes, and enriching educational resources. Whether you're a researcher or a developer, this post is packed with info to enhance your knowledge and skills in ZKP security. Plus, find out how you can contribute to expanding this invaluable resource!
Dive into the intriguing world of zero-knowledge cryptography with us as we unravel its connection to trusted and confidential computing. Learn why this tech is making us rethink security like never before. From the evolution of private and delegated computing to the revolutionary power of zero-knowledge proofs, we'll explore how these advancements are shaping industries beyond cryptocurrencies. With big players like Microsoft jumping on board and the potential for new applications, zero-knowledge cryptography is poised to redefine digital trust. Join us on this journey as we launch our new security consultancy, designed to navigate and secure this cutting-edge landscape.
Zero-knowledge (ZK) programs are revolutionizing how developers can build secure systems by proving execution without exposing data, making them incredibly useful for privacy and security. However, they come with their own set of challenges. In this blog, we delve into these security implications and offer practical strategies to help developers navigate the risks. From understanding private inputs to the intricacies of proof systems and trusted setups, we unpack the complexities and provide insights on how to address potential pitfalls, ensuring you're well-prepared to harness the power of ZK programs effectively.
A year after launching, we've grown and evolved alongside the world of zero-knowledge proofs, uncovering bugs and learning the ins and outs of ZK technology. From circuit audits to developing our own tools like Circomscribe, it’s been a wild ride. We've discovered how easy it is to misstep with ZK code, especially as these systems grow complex and impact financial security. As zkVMs gain popularity, we're excited about the challenges ahead and are expanding our expertise. Want to dive into the world of ZK with us? Check out our latest projects and even take on our zkBank challenge!