Hash functions are mathematical algorithms that are often used to verify that a digital object is the same as expected. To do this, a hash function accepts input data of any size and outputs a unique, fixed-length string of characters known as a hash. The hash is a unique “fingerprint” for the source data, and as such, can be used to verify the authenticity of the original data. Key properties Deterministic: The same input data will always produce the same output hash. Even a small change...