Aztec 2 Bug Bounty

This repo includes a snapshot of the Aztec 2 code base that is being used in the upcoming main-net launch of our ZkZkRollup.

We invite all interested parties to read / tinker and use the code. If any bugs are found please report issues responsibly via email to [email protected].

Important files

contracts/RollupProcessor.sol
contracts/verifier/TurboVerifier.sol
barrentenberg/src/aztec/rollup/proofs/*

A draft protocol specification can be found below, and will be updated to be more detailed over the coming days.

https://hackmd.io/@aztec-network/ByzgNxBfd

** Some bugs have already been fixed. See https://github.com/AztecProtocol/barretenberg for description of these fixes and updated code **

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aztec-2-bug-bounty's Issues

Inconsistent Deposit events generated from depositPendingFunds

RollupProcessor's depositPendingFunds method generates Deposit events for token deposits, but no events for ETH deposits.

I think it should generate Deposit events for both (my preference) or neither.

RollupProcessor should emit Withdraw/WithdrawError events

Looking at the code, Withdraw and WithdrawError events are declared in RollupProcessor.sol.
But they are never emitted. It would be helpful to tools analyzing Aztec usage if they were.

Barretenberg library build problem

There are some problems with building a library Barretenberg. I run the "./bootstrap.sh" as described in the build instruction and received several CMake's build problems. Full log are here - CMakeBuildProblem.log
Seems that the problem is that several directories and files don't exist in repository. Missing directories and files are:

barretenberg/src/aztec/crypto/ecdsa
barretenberg/cmake/build.cmake
barretenberg/src/aztec/stdlib/hash/mimc
barretenberg/src/aztec/stdlib/encryption/ecdsa
barretenberg/src/aztec/noir

If I update CMakeLists files with problems (just by deleting the lines where the error occurs) I will receive several C++ build problem. Full log are here - C++BuildProblem.log. Seem that the problem occurred due to missing cpp-header files. E.g. barretenberg/src/aztec/plonk/proof_system/types/program_settings.hpp try to include barretenberg/src/aztec/plonk/proof_system/widgets/transition_widgets/mimc_widget.hpp (which does not exist) and we receive an error.

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