A .gitignore

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+/target
+Cargo.lock
+
+# Circom generated files
+circuit/keccak-chain_js
+node_modules
+package-lock.json
+*.r1cs
+*.sym
+
+# generated contracts at test time
+generated
+*.sol
+*.calldata
+*.inputs

A README.md

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+# keccak-chain-sonobe
+
+Repo to test a more complex [Circom](https://github.com/iden3/circom) circuit with [Sonobe](https://github.com/privacy-scaling-explorations/sonobe).
+
+Proves a chain of keccak256 hashes, using the [vocdoni/keccak256-circom](https://github.com/vocdoni/keccak256-circom) circuit.
+
+> WIP
+
+assuming rust and circom have been installed:
+- `./compile-circuit.sh`
+- `cargo test --release -- --nocapture`