Ethereum-Solidity Quiz Q1: What is fuzzing?

Source: Dev.to

What is fuzzing?

Fuzzing is an automated testing technique for smart contracts that generates a pre‑set number of randomized/unexpected inputs that are thrown to the system with the end goal of exposing security vulnerabilities by triggering unexpected/invalid behavior.

Types of fuzzing

Stateless fuzzing

• State resets between function calls
• A single function takes randomized input parameters
• Used for individual functions

Stateful fuzzing

• State is maintained across multiple function calls
• Multiple random function calls with randomized input parameters
• Used for invariant testing