phpCrypt is self classified under ECCN 5D002 in the United States as freely
available encryption source code. Both BIS and the NSA were notified of
phpCrypt and the URLs which host the phpCrypt source code as required under
740.13(e) of the EAR on July 30, 2013 at the following email addresses:

crypt@bis.doc.gov
enc@nsa.gov