From Remarks on Internet and Java Security Basic Information Track Computational Science Course CPS616 -- Spring Semester 1999. byGeoffrey Fox, Mehmet Sen
VeriSign provides issuing, revocation, and status services for four types of Digital IDs --
Secure Server Digital IDs,
Digital IDs for software publishers,
Personal Digital IDs for use with Web Browsers, and
Personal Digital IDs for use with S/MIME applications.
VeriSign Digital IDs for servers enable web servers to operate in a secure mode.
A VeriSign Digital ID unambiguously identifies and authenticates your server and encrypts any information passed between the server and a web browser.