babyjubjub-ark/README.md

babyjubjub-rs

BabyJubJub elliptic curve implementation in Rust. A twisted edwards curve embedded in the curve of BN128/BN256.

BabyJubJub curve explanation: https://medium.com/zokrates/efficient-ecc-in-zksnarks-using-zokrates-bd9ae37b8186

Uses:

• Poseidon hash function https://github.com/arnaucube/poseidon-rs

Compatible with the BabyJubJub implementations in:

• Go, from https://github.com/iden3/go-iden3-crypto
• circom & javascript, from https://github.com/iden3/circomlib

Warning

Doing this in my free time to get familiar with Rust, do not use in production.

• point addition
• point scalar multiplication
• eddsa keys generation
• eddsa signature
• eddsa signature verification
• {point, pk, signature} compress&decompress parsers

References

• BabyJubJub curve explanation: https://medium.com/zokrates/efficient-ecc-in-zksnarks-using-zokrates-bd9ae37b8186
  • C++ & Explanation https://github.com/barryWhiteHat/baby_jubjub
    • C++ https://github.com/barryWhiteHat/baby_jubjub_ecc
  • Javascript & Circom: https://github.com/iden3/circomlib
  • Go https://github.com/iden3/go-iden3-crypto
• JubJub curve explanation: https://z.cash/technology/jubjub/
  • Rust: https://github.com/zkcrypto/jubjub
  • Python: https://github.com/daira/jubjub