isabella232 / bulletproofjs

Set of JavaScript based tools and Ethereum Solidity contracts for BulletProof based range proofs and confidential transactions

BulletproofJS

This set of tools is not ready for production and is listed for use only for projects of BANKEX Foundation "Proof-of-Skill" hackathon in Moscow on 19-20th of May, 2018

Features

• Set of local provers and verifiers for BulletProof range proofs (almost 1 to 1 compatible (hashing algo now always pads)) with the original work from Stanford).
• Set of Ethereum smart-contracts for verification only, as well as libs for EC arithmetics and public parameters generation using "nothing up my sleeve" numbers.
• Prototype Confidential Transactions contract taking care of various tokens, deposits, key exchange.
• AES encryption for exchange of transaction values and blinding factors out of the box.

TODO

• Add Ethereum smart-contracts for key derivation, although using it is HIGHLY DISCOURAGED on any non-user controlled node.
• Improve key exchange to have separate viewing and spending keys.
• Improve gas costs by may be adding shifts.

Authors

• Alex Vlasov, @shamatar, [email protected]
• Sergey Vasilyev, @swasilyev, [email protected]

License

All source code and information in this repository is available under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. See the LICENSE file for more info.