Keccak

Keccak is a cryptographic algorithm used to securely generate fixed-size digital fingerprints, called hashes, from data of any size. Think of it as a highly complex, digital "blender" that mixes input data thoroughly to produce a unique, permanent code. It's designed to be secure against hacking, meaning it's extremely difficult to reverse-engineer the original data or find two different inputs that produce the same hash. Keccak is the basis for the SHA-3 standard, providing reliable security for digital signatures, certificates, and data integrity in various applications.