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Veksel

This is a benchmarking implementation for the anonymous payment system Veksel. It is not for production purposes.

This repository contains:

  • Sage scripts to generate the Jabberwock curve over Ristretto25519 scalar field (curve folder)
  • Bulletproof constraints to check rerandomization of coins and whether they are permissible (randomize folder)
  • A simplified version of the set membership schemes from CBFGK19 (membership folder as well as this repo)
  • an implementation of proofs for "coin collection" transactions (depositing a coin into your account) from the above building blocks (in lib.rs)

Build Instructions

Run cargo test or cargo bench in folder.

Acknowledgements

We rely on the Bulletproofs implementation from dalek.

Most of our implementation for set membership depends on code written by Kobi Gurkan.

We rely on the implementation of cryptographic accumulators from cambrian.

LICENSE

This code is released under the MIT License.

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