Ported .Net Core commits:

hondacrx: - Initial commit: Switch to .Net Core 2.0 - Fix build and removed not needed files Fabi: - Updated solution platforms. - Changed folder structure. - Change library target framework to netstandard2.0. - Updated solution platforms again... - Removed windows specific kernel32 function usage (Ctrl-C handler).
2017-10-26 17:23:44 +02:00
parent 227702e19c
commit a3dc7b3f48
844 changed files with 26064 additions and 1824 deletions
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2012-2017 CypherCore <http://github.com/CypherCore>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+using System.Security.Cryptography;
+
+namespace Framework.Cryptography
+{
+    public class SessionKeyGenerator
+    {
+        public SessionKeyGenerator(byte[] buff, int size)
+        {
+            int halfSize = size / 2;
+
+            sh = SHA256.Create();
+            sh.TransformFinalBlock(buff, 0, halfSize);
+            o1 = sh.Hash;
+
+            sh.Initialize();
+            sh.TransformFinalBlock(buff, halfSize, size - halfSize);
+            o2 = sh.Hash;
+
+            FillUp();
+        }
+
+        public void Generate(byte[] buf, uint sz)
+        {
+            for (uint i = 0; i < sz; ++i)
+            {
+                if (taken == 32)
+                    FillUp();
+
+                buf[i] = o0[taken];
+                taken++;
+            }
+        }
+
+        void FillUp()
+        {
+            sh.Initialize();
+            sh.TransformBlock(o1, 0, 32, o1, 0);
+            sh.TransformBlock(o0, 0, 32, o0, 0);
+            sh.TransformFinalBlock(o2, 0, 32);
+            o0 = sh.Hash;
+
+            taken = 0;
+        }
+
+        SHA256 sh;
+        uint taken;
+        byte[] o0 = new byte[32];
+        byte[] o1 = new byte[32];
+        byte[] o2 = new byte[32];
+    }
+}