Personal computer access control system
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United States of America Patent
Stats
-
Jul 11, 1995
Grant Date -
N/A
app pub date -
Oct 21, 1993
filing date -
Oct 21, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An access control system which uses a password token scheme for controlling user access to data within computer systems. The key component in the access control system is an optical token card that is capable of receiving optically encoded information directly from the CRT display of a standard personal computer and processing the information for use in identification and authentication procedures, cryptographic key management schemes, and administrative procedures such as maintaining audit trails. This design permits the use of much longer strings of challenge input data without the addition of peripheral readers to the system.
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Family
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