Hash (in Computer Science)
| A hash function is any function that can be used to map data of arbitrary size to fixed-size values, though there are some hash functions that support variable length output
The values returned by a hash function are called hash values, hash codes, hash digests, digests, or simply hashes.
The values are usually used to index a fixed-size table called a hash table.
Use of a hash function to index a hash table is called hashing or scatter storage addressing. https://en.wikipedia.org/wiki/Hash_function
Cryptographic hash function (in Cryptography)
A cryptographic hash function (CHF) is a hash algorithm (a map of an arbitrary binary string to a binary string with a fixed size of π bits) that has special properties desirable for a cryptographic application: