Privacy Idea Generator

We collected the best ideas that have yet to come to life — we asked experts and privacy partners what they would like to see hacked soon.

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Wallet with One account per dapp

build a wallet that does one account per dapp and makes send-to-others and send-to-self go through a pool by default

WalletDeFi

Ethereum

minimal LoC ethereum wallet

minimal LoC ethereum wallet

WalletDeFi

Ethereum

minimal LoC signal client

minimal LoC signal client

CommunicationsPrivacy

Ethereum

minimal LoC local AI agent thing

minimal LoC local AI agent thing

PrivacyAI

Ethereum

full code supply chain verification

How do you know that the thing you're running that claims to have some guarantees actually has those guarantees

Infrastructure

Ethereum

Permissionless private prediction markets

Permissionless private prediction markets

DeFi

hide-my-address aliases

hide-my-address aliases for sign-ins; similar to emails, you use a random address for sign-in that is tied to your main wallet address in a zk-way

Identity

Seal911

What you leak data

can be a browser extension to start with that shows and warns each user whenever he interacts with a certain website, tool etc. what he currently leaks. People will get annoyed after a while but might also understand what they constantly leak

Security

Seal911

private academic peer review system

Submissions and feedback are encrypted, and decrypted once a threshold of reviewers have submitted their input. (can use threshold encryption e.g. via Shutter API). private state: reviews, reviewer identity

IdentityRetupation

Shutter

threshold-secured contact discovery

Contacts are encrypted. Discovery (e.g., “do we both know Alice?”) requires threshold approval, preserving privacy. (can use threshold encryption e.g. via Shutter API, or more complext FHE/MPC scheme). private state: contact lists, shared contacts

Identity

Shutter

dark pool DEX with VBB-obfuscated re-encryption

FHE-encrypted trading with an iO-obfuscated proxy re-encryption program replacing trusted decryption parties. Users prove access and receive re-encrypted results without exposing keys or logic. Private state: encrypted orders, balances

DeFi

Shutter

p2p music file share over a mixnet

p2p music file share over a mixnet

Music

Skip Protocol

trust based credit with private payments

a service that combines trust based credit with private payments, ie: any user can apply for a non-collateralized credit line and if it’s granted, they can then send up to the max amount of free credit to a new, anon wallet of which nobody knows they control it. from there they can then transact anonymously in order to apply for credit you have to show some onchain score, lets say for simplicity your gitcoin passport score

DeFiIdentity

Common Ground

Proof of liveness (ZK client side) - Aka Proof of human

IDs and image vectors. Proof of liveness that works directly on the user's device and is able to generate a liveness proof (verifiable on-chain) without specialized hardware, or need to share biometrics to external servers. Client side ZK-image recognition is required by Rarimo.

ZKIdentity

Rarimo

private trustlines

A private version of the original trustlines network idea: A decentralized payment system that enables users to create mutual credit lines with trusted peers, facilitating transactions through interconnected networks of trust relationships without requiring traditional banking infrastructure. Private state: connections, capacities and transfers should be private

DeFi

Phylax Systems

private event planning

You should be able to sign up for events as easily as with luma, but you shouldn't get spammed by random projects because you shared your email or other information after. Using the zupass API to create a luma experience that is fully private! Private state: user information

IdentityCoordination

Phylax Systems