PORTABLE DATA CARRIER WITH PROTECTION FROM UNSANCTIONED ACCESS, PROVIDED DUE TO SEPARATION OF KEY ON SEVERAL PORTIONS Russian patent published in 2005 - IPC

Abstract RU 2251218 C2

FIELD: data carriers.

SUBSTANCE: data carrier is made in such a way, that for important data protection operations confidential data stored in chip memory or formed by it are separated on at least three portions, also provided is processor for calculation of random number and for dividing confidential data on such random number, while first portion of data is an integer result of such division, and third portion of data is the actual random number.

EFFECT: higher quality of data protection.

3 cl, 1 dwg

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RU 2 251 218 C2

Authors

Germann Dreksler

Kharal'D Fater

Dates

2005-04-27Published

2000-12-20Filed