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Project Name

Polkadot DKG multisig Wallet part 2

Project Description

This is an application for development of a DKG multisig wallet. This project has been discussed with multiple members of the Web3 team, we have also recently finished a PSP regarding this project https://github.com/everstake/PSPs/tree/psp-dkg-multisig-wallet

    DKG multisig wallet will allow users to manage their funds collectively with high security level via the application with the good UX.

    Distributed Key Generation (DKG) is a way for a group of nodes to collectively agree on a public/private key pair without any single party knowing the private key. Everyone just knows the public key.

    This is actually very hard to achieve but it relies on the fact that lagrange interpolated shares are homomorphic (in that operations can be performed on shares even without knowing the full value). For example, you can add A{share1}+B{share1} to get C{share1} that you can add to someone else’s C{share2} to get the full value of C (assuming A and B were split into 2 shares each).

    In general, a multisig wallet which we want to develop can be divided into 3 parts: wallet APP(browser extension, desktop app, etc.), web server and DKG library in Rust.

    To conclude about the architecture of the wallet, we will combine different approaches and allow users to use a browser extension only or combine it with a mobile app where the phone serves as a hardware wallet only for signing transaction. Unlike other wallets in the Polkadot ecosystem we have made an accent on multisignature and DKG functionality and with our wallet the Polkadot ecosystem becomes fully equipped with all possible ways of holding tokens, sending them and generating keys. As a result it will be a multisig wallet with a very high level of security as it is fully built on the cryptography protocols.

    The project will be done under guidance and supervision of Jeff Brudges From Web3.

Team members

  • Aleksei Korobeinikov – developer
  • Vadym Grozinok – developer

Team Website

Legal Structure

ATTIC LAB, Limited Liability Company. 89, Kazimir Malevich str., Kyiv, 03150, Ukraine

Team's experience

Everstake is an affiliate company of Attic Lab, so members from both teams are going to participate in the project. We have developed VSCode and Atom plugins for Substrate. We have also created a PSP for this project.

Our prior projects and experience include: Crypto exchange Codex. Cassandra history plugin, Munin plugins, OpenBankIT open-source banking software, EOS History API running on Elasticsearch cluster, My EOS Wallet. (web and mobile), NEO IDE, Teztracker (Tezos blockchain explorer).

Team Code Repos

Team LinkedIn Profiles

Development Roadmap

  1. DKG library
    • VSS (240h)
      • Implement polynomial commitments with Lagrange interpolation - 72h
        • NewPrivPoly
        • RecoverSecret
        • NewPubPoly
      • Implement Dealer functionality (struct which will create shares and deals(set of data such polynomials, sessionID, threshold)) - 56h
        • NewDealer
        • EncryptDeal
        • SecretCommit
      • Implement Verifier functionality (struct which will receive deals from all the participants and verify it) - 96h
        • NewVerifier
        • ProcessEncryptedDeal
      • Write unit tests - 16h
    • DKG(320h)
      • Integrate with VSS functionality - 16h
      • Write functionality to create and process commitments of the secret polynomials - 56h
        • NewDistKeyGenerator
        • ProcessDeals
        • ProcessSecretCommits
      • Write reconstruction key functionality - 32h
        • GenDistKeyShare
      • Write unit tests - 16h

Development team:

2 backend developers

1 frontend developer

Total labor-costs: 560 man-hours

Total project length: 2.5 months