How to use digest + hash using windows store app libraries ?

Question

Hello,

how can I do this :

       

        Dim hmac = New HMACSHA256(Encoding.UTF8.GetBytes(token))
        Dim sha256 = New SHA256Managed

        Dim sig = Convert.ToBase64String(hmac.ComputeHash(sha256.ComputeHash(data)))

When I am developing a windows store app ?

---

Steve

Answer 1

The System.Security.Cryptography namespace has a MacAlgorithmProvider for this. Also check these samples.

Answer 2

thanks for the links. I already had them :

http://msdn.microsoft.com/en-us/library/windows/apps/windows.security.cryptography.core.macalgorithmprovider.openalgorithm(v=win.10).aspx

http://msdn.microsoft.com/en-us/library/windows/apps/windows.security.cryptography.core.hashalgorithmprovider.openalgorithm(v=win.10).aspx

It stills doesn't answer the question.

how can I replace these simple 3 lines ?

should I now write 100 lines and hire a cryptography specialist ?

---

Steve