C 文件简单加密解密[原创]

加密

 FILE *newFile;
 FILE *fp;
 CFileDialog openDialog(true);
 CString fileName;
 CString newFileName;
 char m;
 char n;
 if(openDialog.DoModal()==IDOK)
 {
  //newFileName=openDialog.GetFileName();
  //fp=fopen(fileName.GetBuffer(MAX_PATH),"rb");
  //newFileName="1.dat";
  fp=fopen("default.swf","rb");
  newFile=fopen("default.dat","wb");
  while(fread(&m,sizeof(char),1,fp)==1)
  {
   n=~m;
   putc(n,newFile);
  }
  fclose(fp);
  fclose(newFile);
 }

解密

 FILE *newFile;
 FILE *fp;
 CFileDialog openDialog(true);
 CString fileName;
 CString newFileName;
 char m;
 char n;
 if(openDialog.DoModal()==IDOK)
 {
  //newFileName=openDialog.GetFileName();
  //fp=fopen(fileName.GetBuffer(MAX_PATH),"rb");
  //newFileName="1.dat";
  fp=fopen("default.dat","rb");
  newFile=fopen("default1.swf","wb");
  while(fread(&m,sizeof(char),1,fp)==1)
  {
   n=~m;
   putc(n,newFile);
  }
  fclose(fp);
  fclose(newFile);
 }