Hash sha, md5, ...

https://stackoverflow.com/questions/800463/c-sharp-create-a-hash-for-a-byte-array-or-image

https://msdn.microsoft.com/ru-ru/library/s02tk69a(v=vs.110).aspx

https://blogs.msdn.microsoft.com/csharpfaq/2006/10/09/how-do-i-calculate-a-md5-hash-from-a-string/

https://msdn.microsoft.com/ru-ru/library/xa627k19(v=vs.110).aspx

https://msdn.microsoft.com/ru-ru/library/system.security.cryptography.md5(v=vs.110).aspx

https://support.microsoft.com/ru-ru/help/307020/how-to-compute-and-compare-hash-values-by-using-visual-c

https://msdn.microsoft.com/ru-ru/library/system.security.cryptography.sha256(v=vs.110).aspx

https://support.microsoft.com/en-in/help/307020/how-to-compute-and-compare-hash-values-by-using-visual-c

https://msdn.microsoft.com/ru-ru/library/system.security.cryptography.hashalgorithm(v=vs.110).aspx

https://msdn.microsoft.com/en-us/library/1e59xaaz(v=vs.110).aspx

https://msdn.microsoft.com/ru-ru/library/system.security.cryptography.hmacmd5(v=vs.110).aspx

https://social.msdn.microsoft.com/Forums/en-US/8c263065-0b75-4642-b4e2-0ab5bdfa897c/how-to-implement-gethashcode-for-byte?forum=csharpgeneral

https://gist.github.com/kristopherjohnson/3021045

https://bytes.com/topic/c-sharp/answers/278664-md5-hash-converting-result-byte-back-string