Cryptography – Key management – Having particular key generator
Patent
1996-02-12
1998-04-21
Beausoliel, Jr., Robert W.
Cryptography
Key management
Having particular key generator
380 32, 380 46, 380 25, H04K 100, H04L 900
Patent
active
057427569
ABSTRACT:
The specification describes a user security system for use in conjunction with an operator terminal such as a personal computer. The user security system utilizes an intelligent security token, commonly referred to as a Smart Card, for security-critical operations. A peripheral reader device provides communications between the Smart Card and the operator terminal. The Smart Card is programmed to signal the reader device prior to performing a security-critical operation and to wait for a counter-signal before performing any such security-critical operation. The reader device has a security key that is physically operable by a person. The reader device is configured to supply the counter-signal to the Smart Card only in response to operation of the security key, and to prevent the operator terminal from supplying the counter-signal.
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Barlow Douglas C.
Dillaway Blair B.
Lipscomb Terry M.
Beausoliel, Jr. Robert W.
Hua Ly V.
Microsoft Corporation
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