Registers – Systems controlled by data bearing records – Credit or identification card systems
Patent
1997-01-03
1999-02-09
Gross, Anita Pellman
Registers
Systems controlled by data bearing records
Credit or identification card systems
235382, G06K 5100
Patent
active
058698230
ABSTRACT:
A method and a system are proposed for increasing the data integrity on smartcards. In accordance with the invention a sequence of write processes on a smartcard is defined as a unit for which the integrity of the data to be written is ensured. The write process may involve the writing of data to one or more files. The data of an integrity unit i.e. a unit of data for which the integrity is to be ensured is preferably written to shadow memory. The method in accordance with the invention decreases considerably the likelihood that data will be corrupted through an error in writing the data on the smartcard. Data can be restored or completed through the interface of read-write units. The method in accordance with the invention can serve as a basis for maintaining data files external to the smartcard consistent with data on the smartcard.
REFERENCES:
patent: 5012407 (1991-04-01), Finn
patent: 5243175 (1993-09-01), Kato
patent: 5361228 (1994-11-01), Adachi et al.
patent: 5479511 (1995-12-01), Naccache
patent: 5495098 (1996-02-01), Pailles et al.
patent: 5532463 (1996-07-01), Debelleix et al.
patent: 5635695 (1997-06-01), Feiken
patent: 5637859 (1997-06-01), Menoud
patent: 5689100 (1997-11-01), Carrithers et al.
Bublitz Hermann R.
Hanel Walter
Rindtorff Klaus
Dunn Drew A.
Gross Anita Pellman
Hesse Karl O.
International Business Machines - Corporation
Seaman Kenneth A.
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