[Development] C# sources

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Originally Posted by DEADP00L keep goin hio, your doing awesome man

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Originally Posted by funhacker Yes that's been out there for a while (the NPC thing) as when you notice the client has it's own way of interpreting the cq_action thus the old dat file that can still be found in the client.

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Originally Posted by funhacker You know that the packet encryption is pretty obvious?

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Originally Posted by funhacker It has a 4Byte XOR encryption of (A1 87 A9 8F) on your first line then (A1 8B A9 83) on your second line and so forth this continues or I guess you could say a 32 byte XOR of (A1 87 A9 8F A1 87 A9 8F A1 87 A9 8F A1 87 A9 8F A1 8B A9 83 A1 8B A9 83 A1 8B A9 83 A1 8B A9 83) If you're not too sure about what this means just select the data you wish to XOR in winhex then somewhere there is a spot where you can do a calculation or something select XOR and input the 4bytes worth

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Originally Posted by funhacker ok XORing a byte of data will + or - the amount off the byte in question Example Encryption of FF and I had the following 20 (encrypted number) I now do an Xor of FF I get DF (this can be done with Win7 Programmer Window) So the official number is 223

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Originally Posted by forcer did you actualy look at old EO sources I have released? it might be very helpful in packet reverse-engineering.. btw: finally I see someone doing something useful here, send me a message on IM if you need some help.

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Originally Posted by hio77 i get the single byte stuff (modify data in winhex) but it is more the whole key that i get the issues with .... but the packet length don't look right ... idk if im doing it wrong or something though ... it only allows a 2 characters for the xor in that option

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Originally Posted by funhacker I have never used a built in function for encryption keys I have usually done my own functions

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Originally Posted by hio77 EDIT: do you know where exactly the packets are handled (in which project would be a good start for me :) )

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as a side note forcer did you used to be called blacknull lol? i just found something interesting in the source mentioning blacknull and acme

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Originally Posted by funhacker Code: SQLExec("delete from cq_mapdestination;", myConnection); SQLExec("delete from cq_mapdestination_mapcount;", myConnection); FileStream fs = File.OpenRead(openFileDialog1.FileName); BinaryReader br = new BinaryReader(fs); PathCount = br.ReadInt32(); Paths = new MapData[PathCount]; int h = 0; for (int i = 0; i < PathCount; i++) { if (h == 27) { h = 0; } Paths[i].Name = null; Paths[i].Description = null; for (int k = 0; k < 255; k++) { int Byte = br.ReadByte() ^ key[h]; Paths[i].Name += Convert.ToChar(Byte); } Paths[i].Name = Paths[i].Name.Replace(@"\b", "\r\n").Replace("~", " "); for (int m = 0; m < 257; m++) { int Byte = br.ReadByte() ^ key[h]; Paths[i].Description += Convert.ToChar(Byte); } Paths[i].Description = Paths[i].Description.Replace(@"\b", "\r\n").Replace("~"," "); uint[] rByte = new uint[4]; #region MenuID Paths[i].menuid = Convert.ToUInt32(br.ReadByte() ^ key[h]); if (h >= 18 && h <= 20) { Paths[i].menuid += Convert.ToUInt32(br.ReadByte()) * 256; Paths[i].menuid += Convert.ToUInt32(br.ReadByte()) * 65536; Paths[i].menuid += Convert.ToUInt32(br.ReadByte()) * 16777216; } else { Paths[i].menuid += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 256; Paths[i].menuid += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 65536; Paths[i].menuid += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 16777216; } #endregion #region Xpos Paths[i].xpos = Convert.ToUInt32(br.ReadByte() ^ key[h]); if (h >= 18 && h <= 20) { Paths[i].xpos += Convert.ToUInt32(br.ReadByte()) * 256; Paths[i].xpos += Convert.ToUInt32(br.ReadByte()) * 65536; Paths[i].xpos += Convert.ToUInt32(br.ReadByte()) * 16777216; } else { Paths[i].xpos += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 256; Paths[i].xpos += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 65536; Paths[i].xpos += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 16777216; } #endregion #region YPos Paths[i].ypos = Convert.ToUInt32(br.ReadByte() ^ key[h]); if (h >= 18 && h <= 20) { Paths[i].ypos += Convert.ToUInt32(br.ReadByte()) * 256; Paths[i].ypos += Convert.ToUInt32(br.ReadByte()) * 65536; Paths[i].ypos += Convert.ToUInt32(br.ReadByte()) * 16777216; } else { Paths[i].ypos += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 256; Paths[i].ypos += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 65536; Paths[i].ypos += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 16777216; } #endregion #region ParentID Paths[i].parentid = Convert.ToUInt32(br.ReadByte() ^ key[h]); if (h >= 18 && h <= 20) { Paths[i].parentid += Convert.ToUInt32(br.ReadByte()) * 256; Paths[i].parentid += Convert.ToUInt32(br.ReadByte()) * 65536; Paths[i].parentid += Convert.ToUInt32(br.ReadByte()) * 16777216; } else { Paths[i].parentid += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 256; Paths[i].parentid += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 65536; Paths[i].parentid += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 16777216; } #endregion #region MapID Paths[i].mapid = Convert.ToUInt32(br.ReadByte() ^ key[h]); if (h >= 18 && h <= 20) { Paths[i].mapid += Convert.ToUInt32(br.ReadByte()) * 256; Paths[i].mapid += Convert.ToUInt32(br.ReadByte()) * 65536; Paths[i].mapid += Convert.ToUInt32(br.ReadByte()) * 16777216; } else { Paths[i].mapid += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 256; Paths[i].mapid += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 65536; Paths[i].mapid += Convert.ToUInt32(br.ReadByte() ^ 0xFF) * 16777216; } #endregion listBox1.Items.Add(Paths[i].Name); h++; } SQLUpdate(Paths); this.Text = "Pathfinder Decryptor Paths[" + PathCount.ToString() + "]"; That's a snipet from my pathfinder app it shows the use of decryption DecryptedByte = EncryptedByte ^ EncryptionKey; That's how easy it is to decrypt files

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Originally Posted by forcer look in AccountServer/EncryptServer.h there might be more, just search in all .cpp and .h for "encrypt" or "decrypt" blacknull? I don't think it's a nickname of someone I know... "soul.exe blacknull" is only case I can think of.

//////////////////////////////////////////////////////////////////////
// Purpose:        base function for game
//
// WriteBy:        blacknull    10-16-2002
//
// ModifyBy:    blacknull    10-16-2002
//
// CopyRight:    Acme Entertrainment, copyright 2002
//////////////////////////////////////////////////////////////////////

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Originally Posted by funhacker Could I make a suggestion hio? Since imo writing up the server binary files so they are open source requires almost as much work as making one of your own. Why not make our own Client/Server/Database setup. Honestly there is soooo much wasted space with EO it was poorly put together.. It has no functionality with multiple screen resolutions.. And we will still be limited to what official EO releases. The plus side to making our own c# version of EO is for one there is a very nice package by Microsoft called XNA which makes programming with Direct X sooo much easier. Collisions and such are easily calculated and it has a basic game loop setup already for you. The biggest time cost these days in games are Graphics and Concept.. both of which are supplied by a EO client... XNA handles .dds files no problem at all I am sure if we rubbed up forcer enough he may be willing to ask that friend of his to write a little DLL file for loading .c3 files as workable mesh files or we could just convert them all to .3ds files.. Just I have a much better map design system then TQ ever had.. their's is crap over loaded and just another waste of space >.> I already have files like pathfinder and levexp sorted out and shop.dat itemtype.dat INI files it would require very little work compared to writing your own game just an idea I know I would be willing to spare some time when ever I had it to work on this it might bring me back to EO pserver community a little more full on :)