devcon 7 / zkmpc bring public auditability into mpc
Duration: 00:23:19
Speaker: Task Ohmori, Yusuke Nakae
Type: Talk
Expertise: Intermediate
Event: Devcon
Date: Nov 2024
Keynote: The Universal Cryptographic Adapter
The "secret" third affordance of Zero-Knowledge proof after 1) Privacy and 2) Succinctness is Interoperability. ZK enables us to continuously refactor data, aggregate it from different sources, and transforming it without loosing its integrity. Starting with the Zupass project, and now with the broader adoption of the POD and GPC format, 0xPARC has been exploring using ZK for data sovereignty and creating more interoperable data ecosystem. We will cover our learnings and progress in this talk.
Digital pheromones: MPC for human connection & coordination
Recent MPC research from Cursive and PSE enables a new concept called "digital pheromones": the ability to produce lightweight, privacy-preserving signals that people can use to coordinate safely and efficiently. The primary result we will cover is Trinity, a new 2PC scheme with nearly ideal UX/DevX, built on the trio of PLONK, Garbled Circuits, and KZG Witness Encryption. We will do a live demo with attendees and explore what a future filled with digital pheromones will enable!
Keynote: Programmable Cryptography and Ethereum
Programmable Cryptography is a "second generation" of cryptographic primitives - primitives that allow arbitrary programs to be executed "inside of" or "on top of" cryptographic objects. Programmable cryptography provides three key affordances that complement and amplify the affordances of Ethereum--verifiability, confidentiality, and non-interactivity. We'll discuss how these technologies can reshape the Internet over the next 50 years.
TLSNotary: Applying MPC and interactive ZK to prove web2 data
Diving into TLSNotary, a protocol which leverages multi-party computation and interactive ZK to prove the authenticity and provenance of any data on the web to another party. Summary: 1. What it is and what it can do 2. High-level overview of how it works 3. Details on the underlying MPC and ZK protocols that we use 4. How to use it
The verifiability vision
Imagine all data was guaranteed to be correct. We could build a trustworthy digital world based only on correct data. In this presentation, we will sketch layers and techniques that can realize this dream, in particular proof carrying data and succinct proofs. We will also discuss the connection to the proof singularity vision for Ethereum as well as highlight caveats that apply; humanity is still in the early stages of the journey and there are obstacles and constraints to tackle
Clookup - Composite Function based Lookup Argument
Presenting Clookup, a novel lookup protocol that enhances efficiency in verifiable computations. By using a composite function approach and multivariate polynomials within the sumcheck protocol, Clookup achieves optimal time complexity \(O(m(m+n))\) when processing \(2^m\) witness elements against a \(2^n\) table. This method eliminates the need to compute coefficient forms of composite functions.
How To Hallucinate A Server
A Hallucinated Server is a virtual server whose execution is cryptographically simulated by users, using "multiplayer" privacy technologies like multi-party computation or fully homomorphic encryption. Today, thanks to recent advancements in MPC and FHE, we have the technology to build the first fully Turing-complete hallucinated servers. We discuss the underlying technologies, and how we've used them to build several proof-of-concept applications.
MPC Tooling or How to create MPC apps
Let's get into the state of the art of MPC development: we'll discuss different MPC schemes, current MPC tooling & how you can create MPC apps today. We'll cover the tech stack from a frontend level (e.g. MPC compilers) to a backend - and of course how we can combine them.
The combination of ZKP +/- MPC +/- FHE
This talk will provide you with the necessary intuition to understand when you should use ZKP, MPC or FHE, or any combination of them.
Anon-Aadhaar Protocol using Halo2 and Noir
We will introduce the Anon-Aadhaar protocol which is an anonymity layer on top of a social security like Scheme (Aadhaar card) for Indian citizens using Zero-knowledge proofs. This can be used for getting many basic services in India like electricity, banking, etc. We will describe the implementation results of the protocol using Halo2 and Noir. We will also provide a comparative analysis of benchmarks using different backends like Circom, Halo2 and Noir.