06351812 is referenced by 58 patents.

A participant (

14

) in electronic commerce can validate his/her own certificate (

24, 31

) by accessing an authority (

28, 32

) that checks whether the participant's certificate is valid. If the certificate is valid, the authority embeds with the participant's terminal (

12

) a block of data, in the form of a Cookie (

28, 30

) that includes a plurality of attributes indicative of the certificate, for example, the certificate's date of expiration. When accessing a secure application (

16

), the participant presents both the certificate and the authenticating Cookie, obviating the need for a real-time inquiry to the authority, unless the Cookie is stale or missing.

Title
Method and apparatus for authenticating participants in electronic commerce
Application Number
9/923512
Publication Number
6351812 (B1)
Application Date
August 7, 2001
Publication Date
February 26, 2002
Inventor
Earle H West
Morganville
NJ, US
Vishwa Prasad
Matawan
NJ, US
Daniel F Hurley
Marlboro
NJ, US
Rajendra Datar
Clinton
NJ, US
Agent
Robert B Levy
US
Assignee
AT&T
NY, US
IPC
G06F 9/00
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