solidity

A Comprehensive Guide to Smart Contract Audits [2023]

A Comprehensive Guide to Smart Contract Audits [2023]

A smart contract is simply a program that runs on a blockchain. It's a collection of code (functions) and data (state) that resides at a specific address. The increasing number of these programs, and the growing amount of capital they control, make their security more important than ever. To that

How to Verify a Signed Message in Solidity

How to Verify a Signed Message in Solidity

Authored by Leon Do How to sign a message with a wallet and verify the signature on-chain using ecrecover Introduction This is a practical tutorial on signing a message using MetaMask and then verifying it on-chain. Here's a demo: https://leon-do.github.io/ecrecover/ GitHub - leon-do/ecrecover: verify a