Core: Updated to 11.0.7

Port From (https://github.com/TrinityCore/TrinityCore/commit/4f7079f471401d5cf7885351baabc027813f60f5)

Source/Framework/Cryptography/SessionKeyGeneration.cs

@@ -5,16 +5,16 @@ using System.Security.Cryptography;
 
 namespace Framework.Cryptography
 {
-    public class SessionKeyGenerator256
+    public class SessionKeyGenerator512
     {
-        public SessionKeyGenerator256(byte[] buff, int size = 0)
+        public SessionKeyGenerator512(byte[] buff, int size = 0)
         {
             if (size == 0)
                 size = buff.Length;
 
             int halfSize = size / 2;
 
-            sh = SHA256.Create();
+            sh = SHA512.Create();
             sh.TransformFinalBlock(buff, 0, halfSize);
             o1 = sh.Hash;
 
@@ -48,7 +48,7 @@ namespace Framework.Cryptography
             taken = 0;
         }
 
-        SHA256 sh;        
+        SHA512 sh;        
         uint taken;
         byte[] o0 = new byte[32];
         byte[] o1 = new byte[32];