SHA-2: A family of two similar hash functions, with different block sizes, known as SHA-256 and SHA-512. They differ in the word size; SHA-256 uses 32-bit words where SHA-512 uses 64-bit words. There are also truncated versions of each standard, known as SHA-224, SHA-384, SHA-512/224 and SHA-512/256. These were also designed by the NSA.
this is a fairly reliable protection algorithm, it is not so easy to break the protection of 32-bit words
Yes I agree. This algorithm is one of the most difficult for hacking. On its basis, you can learn to build cryptographic protection systems