Cryptographic Hash Function (CHF)

A cryptographic hash function (CHF) is a mathematical algorithm that takes an input—such as data or a message—and produces a fixed-size string of characters, known as a hash. This hash uniquely represents the original data but is irreversible, meaning you cannot convert the hash back into the original input. It’s designed to be quick to compute and to produce different outputs even for small input changes. Hash functions are essential for verifying data integrity, securing passwords, and supporting blockchain technology. They help ensure that information remains unchanged and authentic.