Minimum Viable Privacy: Introducing Hopper by Julien Niset
Channel: Ethereum Foundation
Date: 2019-12-04

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https://archive.devcon.org/archive/watch/5/minimum-viable-privacy-introducing-hopper

Hopper is an Open-Source Mixer for Mobile-friendly private transfers on Ethereum. It allows the private transfer of value from one Ethereum account to another, via an iOS client.
Users can deposit notes of 1 ETH into a mixer smart contract and withdraw them later to a different account by only providing a Zero-Knowledge proof (zkSNARK) that they previously deposited a note into the mixer, without revealing from which account that note was sent.
Relayers are used to post transactions to the blockchain so that the recipient of a private transfer can withdraw a private note from the mixer without needing any prior ether.
This project is based on previous work on trustless Ethereum mixers by @barryWhiteHat and @HarryR.
This talk will discuss the development of Hopper, how others can contribute, and the next steps to make it a true utility for the community.

Speaker(s): Julien Niset
Skill level: Advanced
Track: Privacy
Keywords: technical

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Devcon 5 was held in Osaka, Japan on Oct 8 - 11, 2019.
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