06938156 is referenced by 112 patents and cites 127 patents.

A system in which a requesting entity seeking access to a controlled resource is authenticated by an access authentication component includes the requesting entity initially opening a security account with the access authentication component, the access authentication component establishing and maintaining a record including information pertaining to the account and being retrievable based on a unique identifier for the requesting entity, and associating a public key of a public-private key pair with record; the requesting entity originating an electronic message and generating a digital signature using a provide key of the key pair, and sending the digitally signed electronic message to the access authentication component with the unique identifier; authenticating the electronic message using the public key associated with the record identified by the unique identifier; and upon successful authentication, authenticating access to the controlled resource. A digitally signed verification status is included with the electronic message.

Title
ABDS system and verification status for authenticating entity access
Application Number
10/248605
Publication Number
6938156 (B2)
Application Date
January 31, 2003
Publication Date
August 30, 2005
Inventor
Anne M Wheeler
Greenwood Village
CO, US
Henry Lynn Wheeler
Greenwood Village
CO, US
Agent
Morris Manning & Martin
Assignee
First Data Corporation
CO, US
IPC
H04L 009/00
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