devcon 5 / how scaling impacts privacy
Duration: 00:45:47
Speaker: Liz Steininger
Type: Panel
Expertise: Beginner
Event: Devcon
Date: Invalid Date
Categories
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.
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: 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.
Lunarpunk Endgame
Global surveillance is a static world where change is surpressed and society cannot evolve. In contrast, an anonymity-enhanced world resembles a forest. New civilizational experiments blossom like flowers, radiating outward from the freedom-fighters of the future. The lunarpunk end game is to enable a new ecology of social orders. This talk will describe the grand vision of lunarpunk: multipolar space-faring civilization, human speciation, and the reproduction life throughout the cosmos.
Privacy by design in a world with universal SNARKs
ZK-SNARKs are an innovative method of verifying that a computation has been performed correctly. They form the backbone of many proposed scaling and privacy solutions for Ethereum. PLONK is a new ZK-SNARK construction, developed by AZTEC and Protocol Labs, that is 'universal'; only one 'trusted setup' is required, and different ZK-SNARK programs do not require additional trusted setups to be performed. This construction is the first universal ZK-SNARK construction that is practical enough for use in smart-contracts. In this talk, we will provide an overview of how ZK-SNARKs can be used to solve Ethereum's scaling and privacy challenges, and how PLONK opens up a world of zero-knowledge dapps.
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.
Satoshi Has No Clothes: Failures in On-Chain Privacy
Payments in Ethereum and Bitcoin are, by default, transparent. Transactions are conducted between pseudonyms with the sender, recipient and value exposed. While this transparency enhances auditability and decentralization, it is a major privacy issue. A growing volume of research shows that these pseudonymous identities are easily linkable. This is a major issue for privacy, fungibility, and a free market. A variety of techniques have been proposed to alleviate these issues. These include but are not limited to Confidential transactions + Conjoin, RingCT/Cryptnote, Zerocoin, Zerocash, Hawk, and Solidus. These techniques span a large multidimensional performance envelope in terms of transactions generation and validation time, size, as well as a range of cryptographic assumptions and data retention requirements. At the same time, these protocols offer markedly different levels of privacy against various threat models. Which one should we use? If performance were the sole issue, then systems without such enhancements would likely be preferred. Clearly some amount of privacy is necessary and the cost of getting it acceptable. The question is thus, which approaches provide sufficient privacy, in what contexts, and at what cost?
ELI5: Zero Knowledge
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heyanon.xyz
Demoing heyanon, an open-source app allowing you to anonymously tweet as a verified member of on and off-chain groups. We’ll talk about how you can submit your own groups, our work on improving the ECDSA group experience, and our many ideas for extensions!