add src files decompiled via jad

[rsa2client.git] / src / mcsClient / SecureDatagramSocket.java

diff --git a/src/mcsClient/SecureDatagramSocket.java b/src/mcsClient/SecureDatagramSocket.java
new file mode 100644 (file)
index 0000000..7e04b1c
--- /dev/null
+++ b/src/mcsClient/SecureDatagramSocket.java
@@ -0,0 +1,53 @@
+// Decompiled by Jad v1.5.8g. Copyright 2001 Pavel Kouznetsov.
+// Jad home page: http://www.kpdus.com/jad.html
+// Decompiler options: packimports(3) fieldsfirst nonlb space 
+
+package mcsClient;
+
+import Acme.Crypto.DesCipher;
+import java.io.IOException;
+import java.net.*;
+
+public final class SecureDatagramSocket extends DatagramSocket {
+
+    private DesCipher cipher1;
+    private DesCipher cipher2;
+    private static final boolean debug = false;
+
+    public SecureDatagramSocket(DesCipher descipher, DesCipher descipher1, int i) throws SocketException {
+        super(i);
+        cipher1 = descipher;
+        cipher2 = descipher1;
+    }
+
+    public SecureDatagramSocket(DesCipher descipher, DesCipher descipher1, int i, InetAddress inetaddress) throws SocketException {
+        super(i, inetaddress);
+        cipher1 = descipher;
+        cipher2 = descipher1;
+    }
+
+    public synchronized void receive(DatagramPacket datagrampacket) throws IOException {
+        super.receive(datagrampacket);
+        decrypt(datagrampacket.getData(), datagrampacket.getLength(), datagrampacket.getOffset());
+    }
+
+    private byte[] decrypt(byte abyte0[]) {
+        for (int i = 0; i < abyte0.length; i += 8) {
+            cipher1.decrypt(abyte0, i, abyte0, i);
+            cipher2.encrypt(abyte0, i, abyte0, i);
+            cipher1.decrypt(abyte0, i, abyte0, i);
+        }
+
+        return abyte0;
+    }
+
+    private byte[] decrypt(byte abyte0[], int i, int j) {
+        for (int k = j; k < i + j; k += 8) {
+            cipher1.decrypt(abyte0, k, abyte0, k);
+            cipher2.encrypt(abyte0, k, abyte0, k);
+            cipher1.decrypt(abyte0, k, abyte0, k);
+        }
+
+        return abyte0;
+    }
+}