Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2006-08-15
2006-08-15
Rimell, Sam (Department: 2164)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000, C705S060000, C705S050000, C705S051000, C380S001000, C380S232000, C380S233000, C380S255000
Reexamination Certificate
active
07092930
ABSTRACT:
A method and apparatus for protecting against a replay attack in a database system makes use of customer records including a counter, and freshness records that include the customer counters and a freshness record counter. The counter from the customer records, the customer records in the freshness records, and the freshness record counter are used by a cryptographic device together with a cryptographic device counter to verify the freshness of the customer record prior to updating the customer record with respect to a recent transaction.
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Heiden Richard W.
Lee David K.
Chaclas Angelo N.
Chojnacki Mellissa M.
Halber Eric P.
Pitney Bowes Inc.
Rimell Sam
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