Secure Hashing Algorithm (SHA) is based on the hash function MD4 ,SHA was developed by National Institute of Standards and Technology (NIST) and published in 1993 known as SHA-0, and then published SHA-1 in 1995 that produces a hash value of 160 bits, Then SHA-2 with a hash value length of 256,384 and 512 bits known as SHA-256 SHA-384 and SHA-512 respectively.
SHA-512 SHA-512 takes as input a message with a maximum length less than \(2^{128}\) and produces 512 bits.
