Information security – Access control or authentication – Stand-alone
Reexamination Certificate
2011-01-04
2011-01-04
Chai, Longbit (Department: 2431)
Information security
Access control or authentication
Stand-alone
C726S016000, C726S017000, C726S018000, C726S020000, C713S182000, C713S183000, C713S184000, C713S185000
Reexamination Certificate
active
07865950
ABSTRACT:
A data processing system includes a data storage unit for storing data sets accessible to a user upon receipt of permission. The data processing system restricts access to data sets by requiring a username and then requiring a password to obtain permission for access to a data set stored in a data storage unit. The system is adapted to support use of more than one said password associated with a username; and each of those passwords associated with that username permits a distinct level of access to a particular data set, whereas other passwords can provide different levels of access to any data set assigned thereto.
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Chai Longbit
International Business Machines - Corporation
Kinnaman, Jr. William A.
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