Question

Would like to know how to encrypt a file (lets say a .txt or .xml) with SHA512 hash ? How to proceed ?

What i would want to do is.. check if the file exist.. open it and then read it while unencrypting it.

Thanks!

Answer 1

That is not possible. SHA512 is a hashing algorithm, not an encryption algorithm.

If you want to get the hash for a file, you can use the SHA512 class.

Example:

Dim data As Byte() = File.ReadAllBytes("file.txt")
Dim result As Byte()
Dim sha As New SHA512Managed()
result = sha.ComputeHash(data)