mike may

The whole name of sha1 is Secure Hash algorithms . the Secure Hash Algorithms are a serials of cryptographic hash functions which is invented by National Institute of Standards and Technology. The National Institute of Standards and Technology is a measurement standards lab , which is also a non-regulatory agency under the United States Department of Commerce. The National Institute of Standards and Technology in the history offered many product to promote innovation and industrial competitiveness of US.

As the time of writing , there are 4 generations in the sha hash family , they are the sha-0 (sha0) hash, sha-1(sha1) hash, sha-2(sha2)hash ,and sha-3(sha3) hash. we will talk about each of the hash algorithm In detail.