New Challenge Alert: Complete Both to Join zkSecurity

ZK/SEC December 01, 2025 1 min

new challenge

We're always on the lookout for passionate people to join us to work on the most exciting projects in the ZK space. After launching our first hiring challenge, zkBank, we're excited to announce that we're raising the bar!

To get a chance at joining zkSecurity, candidates must now complete BOTH challenges:

zkBank - Our original challenge that tests your ability to learn and apply knowledge across various areas of ZK. Check it out at https://blog.zksecurity.xyz/posts/zkbank/
Curve Machine - Our new challenge that will push your skills even further in the world of zero-knowledge security.

Both challenges are designed to test different aspects of what makes a great ZK security researcher. If you think you have what it takes to solve them both, head over to our jobs page at https://zksecurity.xyz/jobs for all the details and get started!

Are you ready to prove yourself?

Keep reading

Latest

Variants of KZG: Part V, Multilinear Commitments with Mercury

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.

Varun Thakore · August 17, 2026

Variants of KZG: Part IV, Multilinear Commitments with Gemini

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.

Varun Thakore · August 12, 2026

Optimizing Cryptography with AI

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.

Kobi Gurkan · August 11, 2026

Recommended

zkBitcoin: Use Zero-Knowledge Applications (zkapps) on Bitcoin

We're excited to introduce zkBitcoin, a new tool that lets you create zero-knowledge applications on Bitcoin using a minimal layer 2 protocol. This innovation opens up a world of complex, privacy-focused apps by enhancing Bitcoin's scripting capabilities. We're currently on testnet, so you can jump in and explore the possibilities. Check out our whitepaper or watch some videos for a deeper dive. It's an exciting time for Bitcoin development, and we can't wait to see what you'll build!

David Wong · January 31, 2024

Introducing bugs.zksecurity.xyz a knowledge base for ZK bugs

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!

Stefanos Chaliasos · February 17, 2025

Reproducing and Exploiting ZK Circuit Vulnerabilities

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!

Stefanos Chaliasos, Chenyang Yu · August 09, 2024

More to explore

When LLM Review Cryptography Papers

Google Research used Gemini to find a bug in a cryptography paper on SNARGs from LWE. We summarize how those events unfolded, look at their iterative self-correction prompting strategy and discuss the growing role of LLMs in academic research.

Nicolas Mohnblatt · February 10, 2026

Playing with LaBRADOR: Building Compact Lattice-based Proofs with Recursion

In this post, we explore LaBRADOR, a transparent, lattice-based proof system that achieves sublinear proof sizes through recursion. Built on the Module-SIS assumption, LaBRADOR lets a prover efficiently demonstrate knowledge of short vectors satisfying dot product constraints, general enough to express R1CS. The protocol’s key ideas include amortized openings, outer commitments, and a strategy to shrink the witness after each round of recursion. Together, these techniques make LaBRADOR a powerful, scalable framework for post-quantum zero-knowledge proofs.

Georgios Raikos · November 13, 2025

Accelerating ZK Proving with WebGPU: Techniques and Challenges

Hey there! We're diving into how leveraging WebGPU can revolutionize client-side proving for privacy-preserving zero-knowledge apps. By tackling the usual time and memory bottlenecks with innovative techniques like using GPUs, we're achieving significant performance gains. We'll share our experiences using WebGPU with various frameworks, offering insights into optimizing operations and managing data transfer efficiently. Plus, learn about the challenges and exciting potential of integrating WebGPU into zero-knowledge frameworks. Join us to explore the future of privacy tech!

Jaehun Kim, Jason Park · April 25, 2025