What is SHA-2 HASH ?
SHA-2 means Secure Hash Algorithm 2
SHA-2 was designed by the National Security Agency (NSA) and published by the National Institute of Standards and Technology (NIST) in 2001 as a successor to the earlier SHA-1 hash function. Like other cryptographic hash functions, SHA-2 HASH generator tool takes an input text or string of arbitrary length and produces a fixed-length hash value that is unique to the input data.