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#include <iostream>
#include <Windows.h>
int main( ) {
uint8_t key{ };
std::cin >> key;
printf( "key: %d", key );
auto file = CreateFileA( "./enc.dll", GENERIC_READ, 0, 0, OPEN_ALWAYS, 0, 0 );
if( !file ) return 0;
auto size = GetFileSize( file, 0 );
if( !size ) {
CloseHandle( file );
return 0;
}
uint8_t* data = ( uint8_t* )( malloc( size ) );
if( !ReadFile( file, data, size, 0, 0 ) ) {
CloseHandle( file );
free( data );
return 0;
}
CloseHandle( file );
for( size_t i{ }; i < size; ++i ) {
data[ i ] ^= key;
}
data[ 0 ] = 'c';
data[ 1 ] = 'd';
FILE* f;
fopen_s( &f, "./out.dll", "wb" );
fwrite( data, 1, size, f );
fclose( f );
return 0;
}
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