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README.md

Quill - easy, fast, and low-cost Ethereum transactions

Overview

Interaction with web3 applications can be slow, costly, and risky. Quill leverages BLS signature aggregation on Ethereum layer 2 solutions, easily bringing fast and low-cost Ethereum transactions to your browser.

Additional Benefits

  • send multiple txs as one to ensure atomic execution
  • pay even less gas by reducing on chain footprint of signatures

How to use it

  1. install the plugin
  2. create a contract wallet (uses bls keys)
  3. transfer L2 erc20 tokens
  4. use contract wallet with L2 dapps (coming soon)

Feature Summary

MVP (uses Optimism)

  • Chrome/Brave plugin
  • Secure storage of BLS private-keys
  • Sign tx data:
    • wallet creation
    • erc20 transfers
  • Submit txs to hosted aggregator
  • Basic feedback from aggregator for UI updates (tx received, tx mined. tx dropped?)

Upcoming

  • Secure storage of EDDSA and ECDSA keys
  • Social recovery
    • nominate guardians
    • recover contract wallet
  • Receive tx data from existing L2 dapps on networks:
    • Optimism
    • Arbitrum (coming soon)
    • ...
  • Receive and review multiple txs from dapps
    • sign all and submit to aggregator
  • Wallet feedback (from L2 sequencer)
    • listening to wallet events
    • wallet tx history

Future

  • Sign and submit multiple transactions as one (to L2 sequencer)
    • local signature aggregation
  • Review and sign typed data (712)

Requirements

Secure storage

  • Safe storage options for extension

BLS components

  • signing transactions
  • signature verification
  • signature aggregation

Servers

  • Aggregator
  • Future: L2 Sequencer

User Interface Base

  • Extension for Chrome/Brave and Firefox
    • Web Extensions? combined extensions standard
  • storyboard
  • Common:
    • Network name (hover chainId)
    • Current BLS Key (option to create)
    • Associated contract wallet address if any (option to create)
    • contract wallet balance (L2 ETH token)
    • Action to Transfer (starts tx data)
  • tx edit section:
    • Method name "transfer" (show methodId)
    • Params as text fields
      • address with checks (length, checksum)
      • balance as decimal (*10^18)
  • signed tx section:
    • signed txs per row
      • method name - nonce - (send)
    • (aggregate) - (send all)

Development

Copy .env.example to .env, updating values as needed.

To run the dev server:

yarn run dev:chrome # or dev:firefox etc, see scripts in package.json