OpenZeppelin Contracts is a library for secure smart contract development.

Reproduce DeFi hacked incidents using Foundry.

Guidelines and training material to write secure smart contracts

Web3/Solidity based wargame

Seaport is a marketplace protocol for safely and efficiently buying and selling NFTs.

To learn common smart contract vulnerabilities using Foundry!

🚀 Try the Learn EVM Explorer we just launched!!!

A summary and solutions for 200+ CTF blockchain challenges

All the learning projects code from Metaschool website.

🔑🔑🔑 next generation token approvals mechanism

Practical tutorials of Certora Prover

On-chain test DeFi using Foundry

Pre-built security properties for commonly forked DeFi protocols

A simple template to perform whitehacks safely

A forkable template repo for easily writing and testing toy contracts

This repository implements a simplified PoC that demonstrates how signature malleability attacks using compact signatures can be executed.

Unified interface for sending messages from Ethereum to other chains and rollups.

My solutions to https://ctf.paradigm.xyz/

Damn Vulnerable DeFi v4 Solutions

A protocol adapter contract written in Solidity enabling Anoma Resource Machine transaction settlement on EVM-compatible chains.

This code accompanies the invariant testing tutorial on our website.

Repository containing CTF challenges from nmirchev8, deth and bOgO.