Could you please clarify what you are looking for regarding HTML? OpenVMS
is an operating system - is there some specific document format you want
converted to HTML?
Digital does sell VAX ENCRYPTION for OpenVMS VAX systems, based on the
DES standard. A version for OpenVMS Alpha systems is being planned.
Many people successfully use the freeware PGP encryption software on
OpenVMS. See the OpenVMS Frequently Asked Questions list (referred to by the
"Ask the Wizard" page) for a pointer to more information on PGP.