devcon 6 / eli5 zero knowledge
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Devcon
Talk
19:11
Public Goods and Experiments, the journey of Zkopru
Zkopru is one of the inital projects of EF's PSE team. During the development and experiements PSE team could establish the own ethos for the public goods and experiments. This talk introduces Zkopru project's journey from the beginning to its sunset of the 1st version. Also it introduces the achievements and the future plans.
Devcon
Breakout
18:50
Ethereum 9¾: MimbleWimble for ERC20 with ZK Snark
Ethereum 9¾ is an entrance to the magical world to send ERC20s privately. It hides the transaction histories using MimbleWimble and ZK Snark. A user enters into the magical world by depositing ERC20 tokens with a valid MimbleWimble output. As Ethereum 9¾ appends it as a coin-base to the Merkle Mountain Range tree, the user becomes able to use MimbleWimble spell to send ERC20 privately. The contract only accepts MW spells which include an unlinkable spent tag, result outputs, and a ZK proof. The proof should pass the ZK-circuit which ensures that the tag is derived from an output which definitely exists in the MMR tree while the sum of spent and resulting outputs satisfies the MimbleWimble equation. Then, the spent tag prevents double-spending and ZK Snark secures deposited ERC20s by proving that the sum of inflow and outflow is zero by MimbleWimble protocol without revealing details. Or the user can go back to the muggle world anonymously and withdraw ERC20s by providing an unlinkable spent tag and a ZK proof. Because MimbleWimble doesn't reveal the value during transactions and we also don't know which output has been spent, it becomes hard to link the deposit and withdrawal.
Devcon
Talk
26:12
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
Devcon
Talk
31:51
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.
Devcon
Talk
15:04
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.
Devcon
Talk
26:29
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.
Devcon
Panel
45:47
How scaling impacts privacy
This will be a presentation or panel discussing the positive and negative privacy consequences of scaling to mainstream use. By considering the data stored on blockchains, now, we can speculate about the use of it in the future and how it can be analyzed at scale. We will explore specific data types and common use cases, including data mining. The goal of this session is to help the community know how privacy will be impacted when cryptocurrency reaches mainstream use and explore the societal consequences of personal data collection and decentralization of systems.
Devcon
Breakout
24:47
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.
Devcon
Talk
23:47
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.
Devcon
Talk
24:20
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?