Épisodes

  • ZK in Sui & zkAt with Kostas Kryptos

    ZK in Sui & zkAt with Kostas Kryptos
    Jun 25 2025
    In this episode, Anna Rose and Tarun Chitra catch up with Kostas Kryptos from Mysten Labs to explore the latest ZK innovations being built on Sui. Kostas shares updates on zkLogin and introduces zkAt (ZK Authenticator), a new research project enabling programmable and updatable access control for accounts where Groth16's trusted setup and the generated toxic waste is used in a very novel way. This discussion also covers Sui's ambitious plans to become quantum-ready, including their innovative approach to transitioning existing EdDSA accounts to post-quantum security using STARKs without requiring users to change their addresses. They touch on ZK Tunnels, working with the Greek stock market, and how ZK is breaking out of the web2/web3 paradigm. Related links:
    • Episode 257: Proof of Solvency with Kostas Chalkias
    • Episode 302: ZK for web2 interop with zkLogin & ZK Email
    • Episode 363: Bringing ZK to Google Wallet with Abhi and Matteo
    • Zero-knowledge Authenticator for Blockchain: Policy-private and Obliviously Updateable
    • zkLogin
    • All About Account Abstraction
    • Zengo Crypto Wallet
    • Trusted Setup Ceremony

    Check out the latest jobs in ZK at the ZK Podcast Jobs Board. **If you like what we do:** * Find all our links here! @ZeroKnowledge | Linktree * Subscribe to our podcast newsletter * Follow us on Twitter @zeroknowledgefm * Join us on Telegram * Catch us on
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    1 h et 24 min
  • AI and ZK Auditing with David Wong

    AI and ZK Auditing with David Wong
    Jun 18 2025
    In this episode, Anna sits down with David Wong from zkSecurity to discuss the impact of AI on the field of zero-knowledge auditing. David shares how his team is integrating AI agents into their workflow, the opportunities and challenges this brings, and how the role of the human auditor is evolving as AI becomes more capable. They also cover the unique aspects of auditing ZK-based systems, how this is different from smart contract auditing, and the broader implications of AI for security in cryptography and blockchain. The conversation touches on the ethical considerations of AI in security, the future of the auditing profession, and the ways ZK and AI are increasingly intersecting. Related links:
    • Episode 290: Exploring, Teaching and Auditing ZK with David Wong
    • Episode 76: Sean Bowe on SNARKs, Trusted Setups & Elliptic Curve Cryptography
    • Proof is in the Pudding Session 04: Lattice-Based SNARKs and Post-Quantum Cryptography
    • Fiat-Crypto: Synthesizing Correct-by-Construction Code for Cryptographic Primitives
    • Ethproofs Call #2 | real-time proving
    • Folding Circom circuits: a ZKML case study - Dr. Cathie So

    Check out the latest jobs in ZK at the ZK Podcast Jobs Board. **If you like what we do:** * Find all our links here! @ZeroKnowledge | Linktree * Subscribe to our podcast newsletter * Follow us on Twitter @zeroknowledgefm * Join us on Telegram * Catch us on YouTube **Support the show:** * Patreon * ETH - Donation address
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    1 h et 9 min
  • Bringing ZK to Google Wallet with Abhi and Matteo

    Bringing ZK to Google Wallet with Abhi and Matteo
    Jun 11 2025
    In this episode, Anna and Nico speak with Abhi Shelat and Matteo Frigo from Google about their work integrating zero-knowledge proofs into the Google Wallet. They discuss the technical decisions behind the Anonymous Credentials for ECDSA system, including the challenge of designing a proof system where proving must be efficient enough to run on the client device in a large-scale consumer application, and how they design a system using sumcheck and Ligero to overcome NTT issues. The conversation also touches on the process of standardization, the return of ZK to its privacy roots, and the broader significance of seeing advanced cryptography adopted by a major tech company outside the blockchain space. Links:
    • Episode 303: A Dive into Binius with Jim Posen
    • Anonymous credentials from ECDSA
    • libZK: a zero-knowledge proof library
    • European Digital Identity
    • FFTW
    • Doubly-Efficient zkSNARKs Without Trusted Setup
    • Ligero: Lightweight Sublinear Arguments Without a Trusted Setup
    • Everything provable is provable in zero-knowledge
    • Circle STARKs
    • Highlights of libZK, the Google Wallet ZKP
    • Parallel prefix

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    • Register for ZK Hack Berlin happening 20 - 22 June!

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    • Boundless is a universal zero-knowledge protocol developed by RISC Zero, that lets anyone access abundant verifiable compute, regardless of the blockchain they are using. Learn more about Boundless at
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    1 h et 4 min
  • zkTLS with Maddy from Reclaim

    zkTLS with Maddy from Reclaim
    Jun 4 2025
    In this episode, Anna speaks with Madhavan (Maddy) Malolan from Reclaim Protocol about his work on zkTLS and its applications in web data verification. Maddy shares the journey of building Reclaim, from initial attempts at implementing DECO to developing their current proxy-based solution. The conversation explores the technical challenges of implementing zero-knowledge proofs for HTTPS connections, comparing proxy and MPC approaches, and discussing security considerations. Maddy explains how Reclaim is bringing ZK technology to mainstream applications, focusing on three key verticals: education verification, employment history, and financial background checks. Related links:
    • Episode 353: Making ZK More Human with ZK Email
    • TLSNotary
    • DECO: Liberating Web Data Using Decentralized Oracles for TLS
    • Proxying is Enough: Security of Proxying in TLS Oracles and AEAD Context Unforgeability

    Register for ZK Hack Berlin happening 20 - 22 June! **If you like what we do:** * Find all our links here! @ZeroKnowledge | Linktree * Subscribe to our podcast newsletter * Follow us on Twitter @zeroknowledgefm * Join us on Telegram * Catch us on YouTube **Support the show:** * Patreon * ETH - Donation address * BTC - Donation address * SOL - Donation address Read...
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    58 min
  • Bonus: Spotlight your project with ZK Podcast

    Bonus: Spotlight your project with ZK Podcast
    May 27 2025

    There’s no interview this week, but we have some ad spot availability coming up!

    If you want to reach a highly technical ZK audience and get eyes on your project, tooling, hiring, and more, get in touch at sponsorships@zeroknowledge.fm.

    If you would like to donate individually to the show, our eth address is here: 0xE2C080047213C1d8cDf2099E0B07479C5D9cee8a
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    2 min
  • Implementing LatticeFold with Matthew and Albert from Nethermind

    Implementing LatticeFold with Matthew and Albert from Nethermind
    May 14 2025
    In this episode, Anna and Nico speak with Matthew Klein and Albert Garreta from Nethermind about their work implementing and advancing lattice-based cryptography systems, particularly focusing on folding schemes and their applications in zero-knowledge proofs. Matthew and Albert share insights from their implementation of LatticeFold and discuss the evolution of lattice-based systems, including newer developments like LatticeFold+ and Neo. The conversation explores the unique challenges and opportunities of working with lattice-based constructions, from performance optimizations to post-quantum security considerations. They also dive into their work on post-quantum signatures for Ethereum, light zkML solutions, and the Zinc project, which offers a novel approach to handling integer-based constraints in zero-knowledge proofs. Related links:
    • Episode 359: Lattice-based ZK Systems with Vadim Lyubashevsky
    • Episode 293: Exploring Security of ZK Systems with Nethermind’s Michał & Albert
    • Episode 277: Nova and Beyond with Srinath Setty
    • ZK Whiteboard Sessions S2M6: An Update on Folding with Albert Garreta
    • Nethermind’s LatticeFold implementation
    • Ajtai vs Merkle vs Pedersen
    • LatticeFold paper
    • LatticeFold+ paper
    • Neo paper
    • LaBRADOR paper
    • Zinc integer-based constraints
    • FLI: Folding Lookup Instances paper

    ZK Hack Berlin happens on June 20 - 22! Apply now at zkberlin.com **If you like what we do:** * Find all our links here! @ZeroKnowledge | Linktree * Subscribe to our podcast newsletter * Follow us on Twitter
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    52 min
  • Quantum Punks with Alex and Nicola

    Quantum Punks with Alex and Nicola
    May 7 2025
    In this episode, Anna and Guillermo are joined by Alex Obadia and Nicola Greco, co-authors of the Quantum Punks Manifesto, for a discussion at the intersection of quantum technology and cryptography. They explore the cultural and technical gaps between the quantum and crypto communities, sharing the story behind the manifesto, their vision for bridging these worlds and the applications that such a combination could unlock. Related links:
    • Quantum Punks Manifesto
    • Episode 288: Quantum Cryptography with Or Sattath
    • Episode 357: Quantum Engineering with Jelena Vučković
    • Paris Workshop Video Playlist
    • Teleport.Best Flashbots Project
    • Aria
    • Protocol Labs
    • Conjugate Coding
    • BB84: Quantum cryptography: Public key distribution and coin tossing

    Further reading:
    • The Coming Wave: New Applications of Quantum Cryptography -- Nicola Greco (DeepQuantum)
    • Quantum Punks’ meta-list of resources
    • Quantum cryptography with classical communication: parallel remote state preparation for copy-protection, verification, and more by Gheorghiu, Metger and Poremba
    • Colbeck, R. (2006) Quantum And Relativistic Protocols For Secure Multi-Party Computation (Device Independence)
    • Quantum bidding in Bridge by Muhammad, Tavakoli, Kurant, Pawlowski, Zukowski and Bourennane
    • Coordinating Decisions via Quantum Telepathy by Ding and Jiang

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    1 h et 17 min
  • Lattice-based ZK Systems with Vadim Lyubashevsky

    Lattice-based ZK Systems with Vadim Lyubashevsky
    Apr 30 2025
    In this episode, Anna and Nico speak with Vadim Lyubashevsky, research scientist at IBM Research, about the evolving field of lattice-based cryptography and its role in zero-knowledge systems. Vadim shares the history and mathematical foundations of lattices, and explains how they might be used to build post-quantum secure ZK proofs and SNARKs. The conversation covers the unique challenges of adapting lattice techniques to zero-knowledge, explores the tradeoffs relative to hash-based constructions, and highlights the importance of developing quantum-safe standards for the future of cryptography. Related links:
    • Episode 345: Latest ZK Research with Dan Boneh
    • Episode 288: Quantum Cryptography with Or Sattath
    • LaBRADOR: Compact Proofs for R1CS from Module-SIS⋆
    • IBM’s post-quantum NIST published standards
    • Project11
    • Minkowski’s Geometry of Numbers
    • LLL reduction
    • Shortest vector problem
    • Basic Lattice Cryptography: The concepts behind Kyber (ML-KEM) and Dilithium (ML-DSA) by Vadim Lyubashevsky

    • Spots for zkSummit13 are limited - grab your ticket at www.zksummit.com!

    • Missing Link are a talent team built for the Web3 era, helping projects across the ecosystem connect with the right candidates at the right time. Whether you're an established project or a startup searching for specialized talent, Missing Link can help. Visit their website at missing-link.io.

    **If you like what we do:** * Find all our links here!
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    1 h et 5 min