The 51 claims of patent application
09/849,716 were allowed on April 19, 2004 by the United
States Patent and Trademark Office. The patent was finalized
on June 29, 2004 when patent number 6,757,699 was issued.
The United States Department of Commerce's
Bureau of Export
Administration (BXA) underwent a name change on April 18,
2002 to become the "Bureau of Industry and Security". By whatever
name, the Bureau regulates commercial encryption export controls.
There are products based on the patent
available at the Pryvit site. The Bureau assigned these products
under Export Control Classification Number 5D992, Paragraph B.1.
The reason for control was cited as Country Chart AT1, a short
list which usually features North Korea, Sudan, Syria, etc. How
is this relevant to you? If you build Pryvit into confidentiality
components of your software and if you wish to export that software,
you will need to go through the same process of product classification.
There is a likelihood that similar restrictions on export might
be applied to your product. This is the case with many products;
you may not find it too difficult to routinize these limitations;
the remaining countries open to you represent over 98 per cent
of the world's population.
The finished products
available at this site may be downloaded and licenses may be
purchased for each copy. This kind of license is needed to activate
Pryvit Professional or Pryvit Personal.
For cryptographers and software developers,
there is a personal license which is
free and requires no contact with us. This license permits you
to compile the source code provided or any variation of that
software on one computer. So long as you do not permit copying
of the executable version to any other computer, the free
license applies.
In all other forms of use -- that is,
if any person or organization arranges to compile software based
on this method and then deploys to any other computer a copy
of the compiled executable --the commercial
license applies (whether or not you charge for that executable).
