1089516-A2 is referenced by 90 patents and cites 5 patents.

Methods and systems for single sign-on user access to multiple web servers are provided. A user is authenticated at a first web server (e.g., by user name and password). The first web server provides a web page to the user having a service selector (e.g., a hyperlink comprising the URL of a second web server offering the service indicated by the selector). When the user activates the service selector, the first web server constructs and transmits an encrypted authentication token (e.g., a cookie) from the first web server to a second web server via the user client. The first and second web servers share a sub-domain. The authentication token comprises an expiration time and is digitally signed by the first web server and is authenticated at the second web server. Upon authentication, the second web server allows the user to conduct a session at the second web server.

Title
Method and system for single sign-on user access to multiple web servers
Application Number
EP20000203266 20000920
Publication Number
1089516 (A2)
Application Date
September 20, 2000
Publication Date
April 4, 2001
Inventor
Pan Jack
US
Merschen Toni
US
Jang Yeona
US
Williams Michael
US
Doshi Ashwin
US
Law France
US
Grandcolas Michael L
US
Assignee
Citicorp Dev Ct
US
IPC
G06F 01/00
H04L 29/06
H04L 29/06
G06F 21/00
H04L 29/06
G06F 21/00
View Original Source Download PDF