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arnaucube
2d94206899
(On a Intel(R) Core(TM) i7-8705G CPU @ 3.10GHz, with 32 GB of RAM) - before: ``` add time: [53.447 us 53.467 us 53.492 us] mul_scalar time: [121.19 ms 121.22 ms 121.25 ms] ``` - current: ``` add time: [317.34 ns 317.44 ns 317.54 ns] mul_scalar time: [131.05 us 131.28 us 131.58 us] ``` Which is `168x` improvement for `add`, and `923x` improvement for `mul_scalar`.
babyjubjub-rs 
BabyJubJub elliptic curve implementation in Rust. A twisted edwards curve embedded in the curve of BN128.
BabyJubJub curve explanation: https://medium.com/zokrates/efficient-ecc-in-zksnarks-using-zokrates-bd9ae37b8186
Uses:
- MiMC7 hash function: https://github.com/arnaucube/mimc-rs
- Poseidon hash function https://github.com/arnaucube/poseidon-rs
Compatible with the BabyJubJub Go implementation from https://github.com/iden3/go-iden3-crypto
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
- Javascript & Circom: https://github.com/iden3/circomlib
- Go https://github.com/iden3/go-iden3-crypto
- JubJub curve explanation: https://z.cash/technology/jubjub/