Fuzzers for EIP1962

This repo contains preset scripts for fuzzing of Rust implementation, fuzzing gas estimator (those are not too interesting), and differential testing between C++ implementation and Rust implementation. All scripts are Rust files, so C++ is wrapper into the thin layer.

Implementations

Rust
C++

Libfuzzer

Requires:

C++17 compiler
Nightly Rust
Install using manual

Usage:

cd fuzz
bash run_fuzz_compare.sh

Honggfuzz

Requires:

C++17 compiler
Stable Rust
Install using manual

Usage:

cd honggfuzz
bash run_honggfuzz_compare.sh

Tuning

Change number of threads for fuzzers in scripts
Download initial corpus from here and follow the instructions of either here or here

Extra

Folder cross-tester contains few examples how to specify inputs from fuzzer reports debug and compare implementations.