05148481 is referenced by 270 patents and cites 4 patents.

An improved security system is disclosed which uses an IC card to enhance the security functions involving component authentication, user verification, user authorization and access control, protection of message secrecy and integrity, management of cryptographic keys, and auditability. Both the security method and the apparatus for embodying these functions across a total system or network using a common cryptographic architecture are disclosed. Authorization to perform these functions in the various security component device nodes in the network can be distributed to the various nodes at which they will be executed in order to personalize the use of the components.

Title
Transaction system security method and apparatus
Application Number
418068
Publication Number
5148481
Application Date
July 1, 1991
Publication Date
September 15, 1992
Inventor
William S Rohland
Charlotte
NC, US
Steven W Neckyfarow
Charlotte
NC, US
Todd W Arnold
Charlotte
NC, US
Steven G Aden
Charlotte
NC, US
Dennis G Abraham
Concord
NC, US
Agent
Karl O Hesse Sr
Assignee
International Business Machines Corporation
NY, US
IPC
H04L 9/00
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