mirror of
https://github.com/Heretek-AI/GDevelop.git
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Florian
116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
/**
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Game Develop - AES Extension
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Copyright (c) 2008-2012 Florian Rival (Florian.Rival@gmail.com)
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*/
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#include "GDL/Tools/AES.h"
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#include <iostream>
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#include <fstream>
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#include <string>
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using namespace std;
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namespace GDpriv
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{
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namespace AES
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{
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void GD_EXTENSION_API EncryptFile( const std::string & srcFile, const std::string & destFile, std::string passwordWith24characters )
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{
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while ( passwordWith24characters.length() < 24 )
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passwordWith24characters += " ";
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if ( passwordWith24characters.length() > 24 )
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passwordWith24characters.resize(24);
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ifstream ifile(srcFile.c_str(),ios_base::binary);
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ofstream ofile(destFile.c_str(),ios_base::binary);
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// get file size
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ifile.seekg(0,ios_base::end);
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int size,fsize = ifile.tellg();
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ifile.seekg(0,ios_base::beg);
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// round up (ignore pad for here)
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size = (fsize+15)&(~15);
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char * ibuffer = new char[size];
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char * obuffer = new char[size];
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ifile.read(ibuffer,fsize);
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::AES crypt;
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crypt.SetParameters(192);
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crypt.StartEncryption(reinterpret_cast<const unsigned char*>(passwordWith24characters.c_str()));
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crypt.Encrypt(reinterpret_cast<const unsigned char*>(ibuffer),reinterpret_cast<unsigned char*>(obuffer),size/16);
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ofile.write(obuffer,size);
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delete [] ibuffer;
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delete [] obuffer;
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ofile.close();
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ifile.close();
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}
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void GD_EXTENSION_API DecryptFile( const std::string & srcFile, const std::string & destFile, std::string passwordWith24characters )
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{
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while ( passwordWith24characters.length() < 24 )
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passwordWith24characters += " ";
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if ( passwordWith24characters.length() > 24 )
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passwordWith24characters.resize(24);
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ifstream ifile(srcFile.c_str(),ios_base::binary);
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ofstream ofile(destFile.c_str(),ios_base::binary);
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// get file size
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ifile.seekg(0,ios_base::end);
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int size,fsize = ifile.tellg();
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ifile.seekg(0,ios_base::beg);
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// round up (ignore pad for here)
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size = (fsize+15)&(~15);
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char * ibuffer = new char[size];
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char * obuffer = new char[size];
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ifile.read(ibuffer,fsize);
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::AES crypt;
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crypt.SetParameters(192);
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crypt.StartDecryption(reinterpret_cast<const unsigned char*>(passwordWith24characters.c_str()));
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crypt.Decrypt(reinterpret_cast<const unsigned char*>(ibuffer),reinterpret_cast<unsigned char*>(obuffer),size/16);
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ofile.write(obuffer,size);
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delete [] ibuffer;
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delete [] obuffer;
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ofile.close();
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ifile.close();
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}
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}
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}
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