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) 2012-2014 Arctium Emulation<http://arctium.org>
+ * 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/>.
+ */
+
+namespace Framework.Cryptography
+{
+    //Thx Fabian over at Arctium.
+    public sealed class SARC4
+    {
+        public SARC4()
+        {
+            _s = new byte[0x100];
+            _tmp = 0;
+            _tmp2 = 0;
+        }
+
+        public void PrepareKey(byte[] key)
+        {
+            for (int i = 0; i < 0x100; i++)
+                _s[i] = (byte)i;
+
+            var j = 0;
+            for (int i = 0; i < 0x100; i++)
+            {
+                j = (byte)((j + key[i % key.Length] + _s[i]) & 255);
+
+                var tempS = _s[i];
+
+                _s[i] = _s[j];
+                _s[j] = tempS;
+            }
+        }
+
+        public void ProcessBuffer(byte[] data, int length)
+        {
+            for (int i = 0; i < length; i++)
+            {
+                _tmp = (byte)((_tmp + 1) % 0x100);
+                _tmp2 = (byte)((_tmp2 + _s[_tmp]) % 0x100);
+
+                var sTemp = _s[_tmp];
+
+                _s[_tmp] = _s[_tmp2];
+                _s[_tmp2] = sTemp;
+
+                data[i] = (byte)(_s[(_s[_tmp] + _s[_tmp2]) % 0x100] ^ data[i]);
+            }
+        }
+
+        byte[] _s;
+        byte _tmp;
+        byte _tmp2;
+    }
+}