Vb.net Decrypt sha512 hash

问题

Heys guys,

I'm struggling about out to decrypt the hash how my sha512 encryption. I'm searching a way to finnaly decrypt it.

By the way this is how I do the encryption:

Dim uEncode As New UTF8Encoding()
        Dim bytClearString() As Byte = uEncode.GetBytes("to encrypt")
        Dim sha As New  _
        System.Security.Cryptography.SHA512Managed
        Dim WordEncrypt As String = ""
        Dim hash() As Byte = sha.ComputeHash(bytClearString)
        For Each b As Byte In hash
            WordEncrypt &= b.ToString("x2")
        Next

What i need now is to know how to decrypt it.

回答1:

SHA512 is not an encryption algorithm, it's a hashing algorithm. What this means is that the data that goes into it cannot be recovered from the generated hash.

I'm sorry but there is no way short of using a rainbow table style lookup to get the original data back. There's a great post on the difference here on SO.

来源：https://stackoverflow.com/questions/17489695/vb-net-decrypt-sha512-hash