arnaucube/babyjubjub-ark

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arnaucube d893ecc5f6 Poseidon load static ref avoiding load each time

Benchmarks (On a Intel(R) Core(TM) i7-8705G CPU @ 3.10GHz, with 32 GB of RAM):
- Old:
```
sign                    time:   [953.50 us 953.73 us 953.98 us]
verify                  time:   [832.24 us 832.38 us 832.52 us]
```

- New:
```
sign                    time:   [559.84 us 568.41 us 576.26 us]
verify                  time:   [376.59 us 376.68 us 376.78 us]
```

2020-09-07 23:09:08 +02:00

Update Schnorr to last changes, rm MiMC7 methods

2020-08-02 19:22:12 +02:00

Poseidon load static ref avoiding load each time

2020-09-07 23:09:08 +02:00

.gitignore

add point addition

2019-07-28 21:18:08 +02:00

.travis.yml

add travis & crate config

2019-08-04 14:16:51 +02:00

Cargo.toml

Poseidon load static ref avoiding load each time

2020-09-07 23:09:08 +02:00

LICENSE

add point addition

2019-07-28 21:18:08 +02:00

README.md

Update Schnorr to last changes, rm MiMC7 methods

2020-08-02 19:22:12 +02:00

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