1 files changed, 103 insertions, 0 deletions
diff --git a/protocols/MRA/Sdk/RC4.h b/protocols/MRA/Sdk/RC4.h
new file mode 100644
index 0000000000..82e1da0de4
--- /dev/null
+++ b/protocols/MRA/Sdk/RC4.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2007 Rozhuk Ivan <rozhuk.im@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+
+
+#if !defined(AFX_RC4__H__INCLUDED_)
+#define AFX_RC4__H__INCLUDED_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+
+
+
+__inline void RC4(LPBYTE lpBuff,SIZE_T dwBuffSize,LPBYTE lpKey,SIZE_T dwKeySize)
+{// RC4
+// www.codeproject.com/cpp/crypt_routine.asp%3Fdf%3D100%26forumid%3D4418%26exp%3D0%26select%3D251879+RC4+c%2B%2B+source+DWORD&hl=ru&gl=ru&ct=clnk&cd=2
+// http://www.thecodeproject.com/cpp/crypt_routine.asp
+// http://forum.ixbt.com/topic.cgi?id=40:3020
+
+	//we will consider size of sbox 256 bytes
+    //(extra byte are only to prevent any mishep just in case)
+    BYTE temp;
+	BYTE Sbox[260]={0},Sbox2[260]={0};
+    SIZE_T i,j,t,x;
+
+    i=j=t=x=0;
+    temp=0;
+
+    //initialize sbox i
+    for(i=0;i<256;i++) Sbox[i]=(BYTE)i;
+
+    j=0;
+    //whether user has sent any inpur lpKey
+    //initialize the sbox2 with user lpKey
+    for(i=0;i<256;i++)
+    {
+        if (j==dwKeySize) j=0;
+        Sbox2[i]=lpKey[j++];
+    }    
+
+    j=0; //Initialize j
+    //scramble sbox1 with sbox2
+    for(i=0;i<256;i++)
+    {
+        j=(j+(unsigned long)Sbox[i]+(unsigned long)Sbox2[i]) % 256U;
+        temp=Sbox[i];                    
+        Sbox[i]=Sbox[j];
+        Sbox[j]=temp;
+    }
+
+    i=j=0;
+    for(x=0;x<dwBuffSize;x++)
+    {
+        //increment i
+        i=(i+1U)%256U;
+        //increment j
+        j=(j+(unsigned long)Sbox[i])%256U;
+
+        //Scramble SBox #1 further so encryption routine will
+        //will repeat itself at great interval
+        temp=Sbox[i];
+        Sbox[i]=Sbox[j];
+        Sbox[j]=temp;
+
+        //Get ready to create pseudo random  byte for encryption lpKey
+        t=((unsigned long)Sbox[i]+(unsigned long)Sbox[j])%256U;
+
+        //get the random byte
+        //xor with the data and done
+        lpBuff[x]=(lpBuff[x]^Sbox[t]);
+    }    
+}
+
+
+
+#endif // !defined(AFX_RC4__H__INCLUDED_)
+
+