Reputation is built one block at a time, on and off-chain. Interep is a bridge for moving reputation from centralized into decentralized systems. Centralized social media and other web2 platforms have captured decades’ worth of social history, so that even people who would prefer to exit these systems are dependent on them as a source of reputation. Interep gives developers a headstart for building sybil-resistant decentralized identity on web3 by leveraging social history built on web2. With...

Reputation is built one block at a time, on and off-chain. Interep is a bridge for moving reputation from centralized into decentralized systems. Centralized social media and other web2 platforms have captured decades’ worth of social history, so that even people who would prefer to exit these systems are dependent on them as a source of reputation. Interep gives developers a headstart for building sybil-resistant decentralized identity on web3 by leveraging social history built on web2. With...

We are thrilled to announce the awarded projects from the recent Semaphore Community Grants round. This grants round invited builders, researchers, developers and privacy advocates to build privacy preserving applications integrating Semaphore, an anonymous signaling protocol. The project proposals vary broadly in scope and geographic representation with teams from Afghanistan, Argentina, Canada, Côte d'Ivoire, China, Costa Rica, France, Germany, Hungary, Japan, Kenya, Slovenia, Turkey, ...

We are thrilled to announce the awarded projects from the recent Semaphore Community Grants round. This grants round invited builders, researchers, developers and privacy advocates to build privacy preserving applications integrating Semaphore, an anonymous signaling protocol. The project proposals vary broadly in scope and geographic representation with teams from Afghanistan, Argentina, Canada, Côte d'Ivoire, China, Costa Rica, France, Germany, Hungary, Japan, Kenya, Slovenia, Turkey, ...

This post was authored by Alessandro and Chao. We are pleased to announce the release of an updated version of MACI - Minimal Anti-Collusion Infrastructure v1.1.1. This new release brings a more secure product, new features, and a much needed documentation refresh. Before we dive into the updates, let’s refresh your memory on what MACI is and what it was created to achieve.BackgroundMACI is an application that provides collusion resistance for on-chain voting processes. It was originally crea...

This post was authored by Alessandro and Chao. We are pleased to announce the release of an updated version of MACI - Minimal Anti-Collusion Infrastructure v1.1.1. This new release brings a more secure product, new features, and a much needed documentation refresh. Before we dive into the updates, let’s refresh your memory on what MACI is and what it was created to achieve.BackgroundMACI is an application that provides collusion resistance for on-chain voting processes. It was originally crea...

Anonymity gives people a clean slate to express themselves, unconnected to an existing identity. Reputation provides context: it reveals an aspect about a person’s history in relation to others. UniRep protocol adds reputation to anonymity, allowing people to provide relational context without revealing specifics of their history. UniRep stands for Universal Reputation and serves as a base layer for applying reputation across multiple communities using interoperable smart contracts while pres...

Anonymity gives people a clean slate to express themselves, unconnected to an existing identity. Reputation provides context: it reveals an aspect about a person’s history in relation to others. UniRep protocol adds reputation to anonymity, allowing people to provide relational context without revealing specifics of their history. UniRep stands for Universal Reputation and serves as a base layer for applying reputation across multiple communities using interoperable smart contracts while pres...

This post was authored by grantee Sora Suegami (Twitter, Github)IntroductionWe released an RSA verification circuit compatible with the halo2 library developed by the privacy-scaling-explorations team. It allows halo2 developers to write circuits to verify RSA-based cryptographic schemes such as RSA signature, RSA accumulator, and verifiable delay function based on groups of unknown order. This post describes the background design and its applications. Github repo: halo2-rsaCircuit Specificat...

This post was authored by grantee Sora Suegami (Twitter, Github)IntroductionWe released an RSA verification circuit compatible with the halo2 library developed by the privacy-scaling-explorations team. It allows halo2 developers to write circuits to verify RSA-based cryptographic schemes such as RSA signature, RSA accumulator, and verifiable delay function based on groups of unknown order. This post describes the background design and its applications. Github repo: halo2-rsaCircuit Specificat...

The potential of zero-knowledge cryptography was on full display at Devcon VI in Bogota, which featured a dedicated ZK track for the first time ever. Since most of PSE’s work has happened in the 3 years since Devcon V in Osaka, it was also a debut for many of our projects – and many of our team members met for the first time! There was a lot we were excited to share with the community. In this post, we’ll revisit some highlights of our time in Bogota, including talks by PSE team members and t...

The potential of zero-knowledge cryptography was on full display at Devcon VI in Bogota, which featured a dedicated ZK track for the first time ever. Since most of PSE’s work has happened in the 3 years since Devcon V in Osaka, it was also a debut for many of our projects – and many of our team members met for the first time! There was a lot we were excited to share with the community. In this post, we’ll revisit some highlights of our time in Bogota, including talks by PSE team members and t...

The Privacy and Scaling Explorations Team is sponsoring a dedicated round of grants for applications that integrate the Semaphore anonymous signaling protocol. Semaphore provides zero-knowledge primitives that enable developers to build powerful privacy preserving applications. With this grant round, we’re encouraging builders to try out these tools in real-world applications that matter to your communities.Privacy mattersWhether it’s talking confidentially with friends, anonymously broadcast...

The Privacy and Scaling Explorations Team is sponsoring a dedicated round of grants for applications that integrate the Semaphore anonymous signaling protocol. Semaphore provides zero-knowledge primitives that enable developers to build powerful privacy preserving applications. With this grant round, we’re encouraging builders to try out these tools in real-world applications that matter to your communities.Privacy mattersWhether it’s talking confidentially with friends, anonymously broadcast...

Originally published on Jan 27, 2022:Meet COCO!Meet COCO! COCO is live on testnet! Try it now: https://www.cocoverse.club Below, we introduce COCO and give short explanation on how it works. For a deeper understanding of COCO visit the docs. COCO ...https://medium.comCOCO is live on testnet! Try it now: https://www.cocoverse.club Below, we introduce COCO and give short explanation on how it works. For a deeper understanding of COCO visit the docs.COCO tl;drWith Coco, groups can collaborate to...

Originally published on Jan 27, 2022:Meet COCO!Meet COCO! COCO is live on testnet! Try it now: https://www.cocoverse.club Below, we introduce COCO and give short explanation on how it works. For a deeper understanding of COCO visit the docs. COCO ...https://medium.comCOCO is live on testnet! Try it now: https://www.cocoverse.club Below, we introduce COCO and give short explanation on how it works. For a deeper understanding of COCO visit the docs.COCO tl;drWith Coco, groups can collaborate to...

Originally published on Oct 12, 2021:Release Announcement: MACI 1.0Release Announcement: MACI 1.0 The Privacy & Scaling Explorations team is proud to release version 1.0 of Minimal Anti-Collusion Infrastructure (MACI). MACI enables collusion resistance for ...https://medium.comThe Privacy & Scaling Explorations team is proud to release version 1.0 of Minimal Anti-Collusion Infrastructure (MACI). MACI enables collusion resistance for decentralised applications, particularly voting and quadrati...

Originally published on Oct 12, 2021:Release Announcement: MACI 1.0Release Announcement: MACI 1.0 The Privacy & Scaling Explorations team is proud to release version 1.0 of Minimal Anti-Collusion Infrastructure (MACI). MACI enables collusion resistance for ...https://medium.comThe Privacy & Scaling Explorations team is proud to release version 1.0 of Minimal Anti-Collusion Infrastructure (MACI). MACI enables collusion resistance for decentralised applications, particularly voting and quadrati...

Originally published on Jan 18, 2022:A Technical Introduction to MACI 1.0A Technical Introduction to MACI 1.0 Introduction a. Background System Overview a. Roles b. Vote Overriding and Public Key Switching c. zk-SNARKs Workflow a. Sign Up b. Publish Message c. Process ...https://medium.comIntroduction a. BackgroundSystem Overview a. Roles b. Vote Overriding and Public Key Switching c. zk-SNARKsWorkflow a. Sign Up b. Publish Message c. Process Messages d. Tally VotesConclusion1. IntroductionMA...

Originally published on Jan 18, 2022:A Technical Introduction to MACI 1.0A Technical Introduction to MACI 1.0 Introduction a. Background System Overview a. Roles b. Vote Overriding and Public Key Switching c. zk-SNARKs Workflow a. Sign Up b. Publish Message c. Process ...https://medium.comIntroduction a. BackgroundSystem Overview a. Roles b. Vote Overriding and Public Key Switching c. zk-SNARKsWorkflow a. Sign Up b. Publish Message c. Process Messages d. Tally VotesConclusion1. IntroductionMA...

Zkitter is a decentralized social network where users have the option to interact anonymously. The platform provides familiar social media functions such as posting, chatting, following, and liking, but with a private identity layer under the hood. Zkitter was created as a public good for more open and honest conversation. With privacy and anonymity enabled by default – and without the fear of damaging or risking one’s personal reputation – the theory is that users will be able to express the...

Zkitter is a decentralized social network where users have the option to interact anonymously. The platform provides familiar social media functions such as posting, chatting, following, and liking, but with a private identity layer under the hood. Zkitter was created as a public good for more open and honest conversation. With privacy and anonymity enabled by default – and without the fear of damaging or risking one’s personal reputation – the theory is that users will be able to express the...

Semaphore V3 is live! We are happy to announce the release of Semaphore v3.0.0 with lots of improvements to the protocol and developer tooling.BackgroundSemaphore is a zero-knowledge protocol that lets Ethereum users prove their membership of a group and send signals such as votes or endorsements without revealing their original identity. The ability to do these two simple things anonymously opens up a world of possibilities — some of which are already being worked on, some we can’t wait to s...

Semaphore V3 is live! We are happy to announce the release of Semaphore v3.0.0 with lots of improvements to the protocol and developer tooling.BackgroundSemaphore is a zero-knowledge protocol that lets Ethereum users prove their membership of a group and send signals such as votes or endorsements without revealing their original identity. The ability to do these two simple things anonymously opens up a world of possibilities — some of which are already being worked on, some we can’t wait to s...