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//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//
// copyright : (C) 2014 Eran Ifrah
// file name : xor_string.cpp
//
// -------------------------------------------------------------------------
// A
// _____ _ _ _ _
// / __ \ | | | | (_) |
// | / \/ ___ __| | ___| | _| |_ ___
// | | / _ \ / _ |/ _ \ | | | __/ _ )
// | \__/\ (_) | (_| | __/ |___| | || __/
// \____/\___/ \__,_|\___\_____/_|\__\___|
//
// F i l e
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
#include <wx/crt.h>
#include "xor_string.h"
XORString::XORString()
{
}
XORString::~XORString()
{
}
wxString XORString::Decrypt(const wxChar byte) const
{
wxString dec = fromHexString(m_value);
dec = XOR(dec, byte);
return dec;
}
wxString XORString::Encrypt(const wxChar byte) const
{
wxString enc = XOR(m_value, byte);
enc = toHexString(enc);
return enc;
}
XORString::XORString(const wxString& value)
: m_value(value)
{
}
wxString XORString::toHexString(const wxString &value) const
{
wxString output;
for(size_t i=0; i<value.length(); ++i) {
wxChar buf[5] = {0, 0, 0, 0, 0};
wxSprintf(buf, "%04X", (int)value[i]);
output << buf;
}
return output;
}
wxString XORString::fromHexString(const wxString& hexString) const
{
wxString output;
size_t cnt = hexString.length() / 4;
for (size_t i = 0; cnt > i; ++i) {
wxString dec = hexString.Mid(i*4, 4);
int hexVal;
wxSscanf(dec, "%X", &hexVal);
output << (wxChar)hexVal;
}
return output;
}
wxString XORString::XOR(const wxString& str, const wxChar KEY) const
{
wxString output;
for(size_t i=0; i<str.length(); ++i) {
wxChar ch = str[i];
wxChar x = (ch ^ KEY);
output << x;
}
return output;
}
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