devcon 6 / non interactive unique nullifiers the key to the next era of zk
Duration: 00:23:10
Speaker: Aayush Gupta
Type: Talk
Expertise: Intermediate
Event: Devcon
Date: Oct 2022
zkemail: Decentralized ID Verification on Chain Without Servers
We demo zk-email, a new primitive that lets you verify emails trustlessly. We demo a simple trustless Twitter badge on chain, and show how almost any data in web2 can be turned into trustless badges or zk badges on a blockchain. Launching with Personae Labs!
Keynote: Lessons learned from Tor
I will share lessons learned during Tor's twenty years as free software fighting for privacy and human rights. We'll talk about distributed trust and privacy by design, how to help people understand the good uses of your tech, getting allies in both cypherpunks and government, why transparency and community-building are so essential to trust, and successes from other spaces. It may seem like the crypto wars never really end, but we all have a part to play in saving the world.
Keynote: Glass Houses and Tornados
The Tornado Cash sanctions and criminal prosecutions have challenged longstanding assumptions within crypto about the limits of money transmission licensing, money laundering statutes, and sanctions laws. They've also revealed a longstanding assumption from some in policy and law enforcement circles: that blockchains have always been and must remain transparent. Neither assumption has served us well and the time has come for legal certainty. This talk is about how we get there.
Tending the Infinite Garden: Organizational Culture in the Ethereum Ecosystem
This presentation will discuss the findings of the academic paper "Tending the Infinite Garden: Organisational Culture in the Ethereum Ecosystem" by Dr. Paul-Dylan-Ennis and Ann Brody. Our study examines the decision-making processes fundamental to Ethereum's protocol governance, drawing on interviews with Ethereum's core developers. We identify a central worldview in Ethereum known as the "Infinite Garden" and discuss how Ethereum's social layer is crucial for upholding cypherpunk values.
Keynote: Make Ethereum Cypherpunk Again: Why we need privacy
The Web3 revolution seeks to address the sins of Web2. However, in doing so, it’s created an even worse outcome for users - users’ data is publicly available and makes them vulnerable to state-level censorship and adverse actions. This talk will address the philosophical as well as practical considerations of privacy in Web3. Privacy is an industry-wide issue and sits at the heart of all that is Web3. Understanding why privacy matters involves recognizing that it is not an isolated concept bu
Keynote: How to Properly Open Source Software: Lessons Learned from the Linux Foundation
It can be challenging to properly open source software: there are licenses, IP, security reporting, and many other issues that need to be addressed. In this talk, we will discuss the best practices for open source software development learned from almost 25 years of experience at the Linux Foundation. Attendees will learn about how to set up their projects for a variety of potential goals, including things like maximizing security and community building.
Private Value Transfer in 10 Lines
Demonstration of how drawing from a standard cryptographic library can reduce zero knowledge circuit implementations to simple programs of as few as 3 lines. The Join split circuit is a popular circuit that originated from Zcash and is being used in Aztec. Using the Aztec Noir standard library, we reconstruct the join split in 10 lines hiding all of the circuit complexities involved.
Public-Private Composability
Learn about the challenges of designing a private execution layer for Ethereum. Previously, smart contract execution (L1 & L2) has been fully public. Some apps provide basic private functionality for a single private state (e.g. privacy coins). We'll discuss ways to execute general private and public state changes across multiple smart contracts in one transaction, within a zk-rollup. This unlocks programmable private smart contracts.
Protecting your Privacy within the Blockchain Ecosystem
Robertas Visinskis gives their talk titled, "Protecting your Privacy within the Blockchain Ecosystem"
P4: Private Periodic Payments Protocol
P4 aims to solve the problem of subscription services offering end-to-end private cryptocurrency payments. This protocol introduces periodicity to cryptocurrency payments through an ongoing relationship between the merchant and the customer without unintentionally disclosing personally identifiable information. We are creating this protocol to allow us to offer a truely end-to-end private subscription data storage solution built with Tahoe-LAFS. By sharing it, we hope that other subscription services will implement our protocol and further the adoption of cryptocurrency payments in real world retail use cases. Although this protocol is currently a work in progress, we have already specified some design decisions. For periodicity, we are avoiding a payment pre-authorization design to keep the user in control of their keys. And for privacy we are utilizing Zcash shielded transactions and the coming improvements in the Sapling release. This protocol is being created by the Least Authority team with support from the Zcash team.