# (Migrated to Notion) [zkRSA Primitive](https://hackmd.io/@Lbt60bghQ4CTs8dkUj5_4w/r1mUReTJo)

## Vision
zkRSA primitive will be part of the tool set to enable make claims with your credentials without disclosing your own identity leveraging RSA signatures. E.g. I belong to organization X and I say Y.

## Strategy
The goal is to prove that, as a user, I can take a credential (such as email, goverment id, etc.) that has an RSA signature of some recognised authority and generate a zk proof for it in the browser.

Further end-user applications can be built on top of it.

## Roadmap
- PSE zkRSA - [General Grant Proposal v2] (https://hackmd.io/DoZPolTRRN-WNYheT7MauA)
- Evaluate next steps after **Feb 2023**.
- Areas worth to explore in the future (after this grant)
- Using Halo2 RSA verifications circuits instead of Circom to improve proving time.
- Exploring rapid-snark instead of snark.js.
## Backlog
- Smaller grained tasks, check lists or GitHub issues. https://github.com/dmpierre/zkrsa

## Related Projects

- Personae Labs - [zk email](https://www.youtube.com/watch?v=w7UAcsptyeo&t=22335s)
- Projects using ZKPs for sensitive data:
- [DoubleBlind](https://github.com/doubleblind-xyz/double-blind): prove ownership of an RSA key, for group signatures.
- HeyAnon, for anonymous messages broadcasting, conditional on a user beloging to a specific group with programmatic verifiability (e.g. using on-chain information).
- Circuits of interest for this project:
- [RSA Halo2 verification circuits](https://github.com/SoraSuegami/halo2_rsa)
- [RSA Signature Circom verification circuits](https://github.com/zkp-application/circom-rsa-verify)

## Possible Ecosystem Usecases
- RSA Sources
- Email
- Government / Company Credentials
- Digital Certificates
- Selective revelation of
- Personal Information (as attested by Government)
- Age
- Residence
- Sex
- Email
- DSNs Server
- Company
- Institution
- Email Body
- Oracle Information
- Digital Certificate
- Proof of ownership of asset X
- Proof of health
- Possible Verticals
- Whistle Blowing (government and corporate)
- Proof of personhood
- Proof of company
- Proof of residence
- Proof of information
## Possible Negative Usecases
- Leaking national security secrets
- Leaking corporate secrets
- [Tragedy of the commons](https://en.wikipedia.org/wiki/Tragedy_of_the_commons)
- Note: need to explore these topics further in a controled environment.

## Assumptions
- Pending to do exercise in [Assumption / Validation Flowchart](https://medium.com/product-ponderings/assumption-validation-flowchart-9dc42293b612)

## Challenges
- Impersonation (stealing of RSA source)
- "Tragedy of the commons"

## Meetings & Links:
- [zkRSA - 28th October 2022](https://hackmd.io/dCCDpZfFRwq-B_VlrjjiQw)
- [zkRSA - 11th November 2022](https://hackmd.io/eYRM7wmpSHKWexgpAix3gA?view)
- [zkRSA - 28th November 2022](https://hackmd.io/VaRvgh0cTbicsfTHbULdiQ?edit)

## Relevant Links:
- Depplyed Application https://zkrsa.vercel.app/
- Repository https://github.com/dmpierre/zkrsa

###### tags: `zkrsa`