Turn a string into SHA512

Does anyone know how to do this in Unity? I've been trying for 12 hours....Thanks. I have this message and a "secret key" and I need it turned into SHA512

I really need working example code too

I've gathered that it might have something to do with System.Security.Cryptography's SHA512Managed class, but I don't understand how to use that class at all it makes no sense to me that is why I need a working example of it turning a string into SHA512

 

This hasn't been tested in Unity, but it does work in a regular C# console application.

Code (csharp):

1. using System;
2. using System.Security.Cryptography;
3. using System.Text;
4.  
5. namespace ConsoleApplication1 {
6.  
7.     class Program {
8.  
9.         static void Main (string [] args) {
10.  
11.             Console.Write (GetSHA512 ("Hello World!"));
12.             Console.ReadLine ();
13.         }
14.  
15.         private static string GetSHA512 (string String) {
16.  
17.             UnicodeEncoding ue = new UnicodeEncoding ();
18.             byte [] hashValue;
19.             byte [] message = ue.GetBytes (String);
20.  
21.             SHA512Managed hashString = new SHA512Managed ();
22.             string hex = "";
23.  
24.             hashValue = hashString.ComputeHash (message);
25.  
26.             foreach (byte x in hashValue) {
27.                 hex += String.Format ("{0:x2}", x);
28.             }
29.  
30.             return hex;
31.         }
32.     }
33. }
34.  

 

Above probably won't work in Unity

Code (csharp):

1. string s = "Hello World";
2. byte[] bytes = System.Text.Encoding.ASCII.GetBytes( s );
3. System.Security.Cryptography.SHA512 sha = System.Security.Cryptography.SHA512.Create();
4. byte[] hash = sha.ComputeHash( bytes );
5. string result = System.Text.Encoding.ASCII.GetString( hash );
6. Debug.Log( result );
7.  

 

This works

Code (CSharp):

1. public static string GetSHA512(string text) {
2.         SHA512 sha = new SHA512Managed();
3.  
4.         //compute hash from the bytes of text
5.         sha.ComputeHash(ASCIIEncoding.ASCII.GetBytes(text));
6.    
7.         //get hash result after compute it
8.         byte[] result = sha.Hash;
9.  
10.         StringBuilder strBuilder = new StringBuilder();
11.         for (int i = 0; i < result.Length; i++)
12.         {
13.           //change it into 2 hexadecimal digits
14.           //for each byte
15.           strBuilder.Append(result[i].ToString("x2"));
16.         }
17.      
18.       return strBuilder.ToString();
19. }