Episode 304: Exploring FRI, LogUp and using M31 for STARKs with Ulrich Haböck

In this week’s episode, host Anna Rose and cohost Nico Mohnblatt catch up with Ulrich Haböck, an applied cryptographer at Polygon Labs. This episode revolves around Ulrich’s journey into applied zero-knowledge cryptography, transitioning from an academic environment to being a full-time practitioner. They discuss his contributions to the field, including his many write-ups and manuscripts as well as his breakthrough research on Multivariate lookups with his work logUp. They also cover his work on logarithmic derivative lookups using GKR with Shahar Papini, as well as his innovative approaches to STARKs over finite fields that are not ‘NTT-friendly’. This episode offers a deep dive into the complexities and breakthroughs in applied cryptography. Here’s some additional links for this episode: A summary on the FRI low degree test by Ulrich Haböck Brakedown's expander code by Ulrich Haböck Improving LogUp with GKR - By Ulrich from Polygon Improving logarithmic derivative lookups using GKR by Papini and Haböck flookup: Fractional decomposition-based lookups in quasi-linear time independent of table size by Gabizon and Khovratovich Bulletproofs++: Next Generation Confidential Transactions via Reciprocal Set Membership Arguments by Eagen Kanjalkar, Ruffing and Nick Nearly Linear-Time Zero-Knowledge Proofs for Correct Program Execution by Bootle, Cerulli, Groth, Jakobsen and Maller Understanding Lasso and Jolt, from theory to code ZK8: Hyperplonk: PLONK without FFTs and with high degree gates - Benedikt Bünz ZK9: logUp - Lookup arguments based on the logarithmic derivative - Ulrich Haböck ZK10: Degree tricks in DEEP STARKs - Shahar Papini Orion: Zero Knowledge Proof with Linear Prover Time by Xie, Zhang and Song Reed-Solomon Codes over the Circle Group by Haböck, Lubarov and Nabaglo Marlin: Preprocessing zkSNARKs with Universal and Updatable SRS by Chiesa, Hu, Maller, Mishra, Vesely and Ward ZK Hack IV online is coming soon, visit zhhack.dev/zkhackIV for the latest news! Launching soon, Namada is a proof-of-stake L1 blockchain focused on multichain, asset-agnostic privacy, via a unified shielded set. Namada is natively interoperable with fast-finality chains via IBC, and with Ethereum using a trust-minimised bridge. Follow Namada on Twitter @namada for more information and join the community on Discord discord.gg/namada. 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