
Some free time side projects:
-
go-snark-study:
Go
zkSNARK implementation from scratch (compiler, setup, prover, verifier) -
go-bellman-verifier:
Go
Groth16 zkSNARK bellman proof verifier using cloudflare/bn256 Pairing -
babyjubjub-rs: BabyJubJub elliptic curve implementation in
Rust
-
poseidon-rs: Poseidon hash implementation in
Rust
-
go-blindsecp256k1: Blind signatures over secp256k1 in
Go
(With the compatible Typescript implementation) -
ring-signatures-rs: bLSAG ring signatures implementation in
Rust
-
ipa-rs: modified Inner Product Argument (IPA) version from Halo paper in
Rust
using arkworks. -
kzg-commitments: Kate-Zaverucha-Goldberg (KZG10) Polynomial Commitments in
Go
-
go-dht: Kademlia DHT implementation in
Go
-
merkletree-rs: Sparse MerkleTree implementation in
Rust
-
go-merkletree: Sparse MerkleTree implementation in
Go
-
shamirsecretsharing: Shamir's Secret Sharing
Rust
&Go
implementation +WASM
lib - kvartalo: a local social cryptocurrency for neigbourhoods, that we are using in a Barcelona neighbourhood as experiment. Build on top of Ethereum blockchain & Tendermint Core
-
go-chip8: CHIP-8 virtual machine emulator written in
Go
-
chip8-rs: CHIP-8 virtual machine emulator written in
Rust
-
fft-rs: Fast Fourier Transform (FFT) implementation in
Rust
- miksi: Ethereum zk-coin-mixer where all the computation & constructions are done offchain and then proved inside a zkSNARK to the smart-contract. (live demo on testnet)
Recent Work:
Vocdoni & Aragon (current) -
Decentralized governance & voting tooling.Design and implementation of anonymous voting solutions using zkSNARKs. Introduced some design optimizations in the circuits which reduced the number of constraints.
Also, contributed to vocdoni/vocdoni-node adding zk related code.
Other stuff implemented:
- vocdoni/keccak256-circom: ethereum sha3 (keccak256) hash function implemented in a Circom circuit
- vocdoni/zk-census-proof: anonymous census proof circuit used in Vocdoni's Blockchain
- vocdoni/arbo: optimized MerkleTree which parallelizes by CPUs for faster computation, compatible with circomlib implementation
- OVOTE technical document
- Forum post with a high level explanation.
- aragonzkresearch/ovote: implementation of the OVOTE circuits, smart contracts & libs
- aragonzkresearch/ovote-node: OVOTE backend node implemented in Go
Hermez zkRollup -
Decentralized zkRollup on Ethereum.Main task has been to implement the Hermez node, used to launch the mainnet of the zkRollup network:
hermeznetwork/hermez-node
My focus has been mainly in the TxSelector, TxProcessor (managing the rollup state tree) and BatchBuilder (generating the data structure compatible with the zkSNARK circuits to do the proof generation).
iden3 -
Scalable decentralized identity system with privacy by design by using zero knowledge proofs.Design and specify the core protocol, develop the core libraries, servers, smart contracts, zk circom circuits and zkSNARK Groth16 Go prover.
- iden3/go-iden3-crypto: cryptographic primitives (SNARK-friendly) used in iden3
- iden3/go-iden3-core: core implementation of the iden3 system
- iden3/go-circom-prover-verifier: implementation of the Groth16 zkSNARK Prover and Verifier compatible with Circom
- iden3/circuits: zkSNARK circuits used by the iden3 core protocol
