05774552 is referenced by 161 patents and cites 5 patents.

A method and apparatus for retrieving, verifying, and using information accessible by a directory service agent to authenticate electronic messages is described. The method comprises the steps of transmitting an open connection message to establish communication between a directory user agent and a directory service agent, searching a directory in the directory service agent for authentication certificates, fetching the found authentication certificates, and transmitting the fetched authentication certificates to the directory user agent. In one embodiment of the invention, the method also comprises the step of searching the directory for authentication certificates responsive to a search criteria message in the open connection message.

Title
Method and apparatus for retrieving X.509 certificates from an X.500 directory
Application Number
8/572261
Publication Number
5774552
Application Date
December 13, 1995
Publication Date
June 30, 1998
Inventor
Francine Gail Grimmer
Poway
CA, US
Agent
Merchant Gould Smith Edell Welter & Schmidt
Assignee
NCR Corporation
OH, US
IPC
H04L 9/00
View Original Source