initial commit

README.md

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+I'm currently in the process of writing this readme with instructions on how to compile this. Please wait for the next commit.

wxPloiter.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "wxPloiter", "wxPloiter\wxPloiter.vcxproj", "{2C8BAC1D-B028-4557-9FBB-AE5935FBB79A}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Win32 = Debug|Win32
+		Release|Win32 = Release|Win32
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{2C8BAC1D-B028-4557-9FBB-AE5935FBB79A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{2C8BAC1D-B028-4557-9FBB-AE5935FBB79A}.Debug|Win32.Build.0 = Debug|Win32
+		{2C8BAC1D-B028-4557-9FBB-AE5935FBB79A}.Release|Win32.ActiveCfg = Release|Win32
+		{2C8BAC1D-B028-4557-9FBB-AE5935FBB79A}.Release|Win32.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

wxPloiter/aes.cpp

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+#include "aes.hpp"
+
+#include <botan/pipe.h>
+#include <botan/filters.h>
+
+namespace maple
+{
+	const signed_dword aes::cb_aeskey = 32;
+
+	const byte aes::aeskey[aes::cb_aeskey] = 
+	{
+		0x13, 0x00, 0x00, 0x00, 
+		0x08, 0x00, 0x00, 0x00, 
+		0x06, 0x00, 0x00, 0x00, 
+		0xB4, 0x00, 0x00, 0x00,
+		0x1B, 0x00, 0x00, 0x00, 
+		0x0F, 0x00, 0x00, 0x00, 
+		0x33, 0x00, 0x00, 0x00, 
+		0x52, 0x00, 0x00, 0x00
+	};
+
+	const signed_dword aes::blocksize = 1460;
+
+	aes *aes::get()
+	{
+		static aes inst;
+		return &inst;
+	}
+
+	aes::aes()
+		: botankey(Botan::SymmetricKey(aeskey, cb_aeskey))
+	{
+		// empty
+	}
+
+	aes::~aes()
+	{
+		// empty
+	}
+
+	void aes::encrypt(byte *buffer, byte *iv, signed_dword cb)
+	{
+        signed_dword pos = 0;
+        byte first = 1;
+        signed_dword tpos = 0;
+        signed_dword cbwrite = 0;
+        Botan::InitializationVector initvec(iv, 16);
+
+		while (cb > pos) 
+		{
+			tpos = blocksize - first * 4;
+			cbwrite = (cb > (pos + tpos) ? tpos : (cb - pos));
+
+			Botan::Pipe pipe(Botan::get_cipher("AES-256/OFB/NoPadding", 
+				botankey, initvec, Botan::ENCRYPTION));
+			pipe.start_msg();
+			pipe.write(buffer + pos, cbwrite);
+			pipe.end_msg();
+
+			// process the message and write it into the buffer
+			pipe.read(buffer + pos, cbwrite);
+
+			pos += tpos;
+
+			if (first)
+				first = 0;
+		}
+	}
+
+	void aes::decrypt(byte *buffer, byte *iv, signed_dword cb)
+	{
+		signed_dword pos = 0;
+		byte first = 1;
+		signed_dword tpos = 0;
+		signed_dword cbread = 0;
+		Botan::InitializationVector initvec(iv, 16);
+
+		while (cb > pos) 
+		{
+			tpos = blocksize - first * 4;
+			cbread = (cb > (pos + tpos) ? tpos : (cb - pos));
+
+			Botan::Pipe pipe(Botan::get_cipher("AES-256/OFB/NoPadding", 
+				botankey, initvec, Botan::DECRYPTION));
+			pipe.start_msg();
+			pipe.write(buffer + pos, cbread);
+			pipe.end_msg();
+
+			// process the message and write it into the buffer
+			pipe.read(buffer + pos, cbread);
+
+			pos += tpos;
+
+			if (first)
+				first = 0;
+		}
+	}
+}

wxPloiter/aes.hpp

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+#pragma once
+
+#include "common.h"
+
+#include <botan/lookup.h>
+
+namespace maple
+{
+	// utility for maplestory's aes encryption
+	// note: botan must be initialized before using this class
+	// credits to vana for this slimmer encryption using botan
+	class aes
+	{
+	public:
+		static aes *get();
+		virtual ~aes();
+		void decrypt(byte *buffer, byte *iv, signed_dword cb);
+		void encrypt(byte *buffer, byte *iv, signed_dword cb);
+
+	protected:
+		static const signed_dword cb_aeskey; // size of the aes key
+		static const byte aeskey[]; // aes key
+		static const signed_dword blocksize; // aes block size
+
+		Botan::OctetString botankey; // symmetric key for AES encryption
+
+		aes();
+	};
+}