Secure memory having anti-wire tapping
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United States of America Patent
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Jul 25, 2000
Issued Date -
N/A
app pub date -
Nov 26, 1997
filing date -
Nov 26, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
According to a first aspect of the present invention, cryptography without a dedicated microprocessor on the smart card is employed to provide authentication of both the smart card and the smart card reader, and wherein the cryptography provides only a preselected number of attempts at authentication, if not reset, before access to the smart card is denied permanently. According to a second aspect of the present invention, access to each the memory zones of the smart card may be individually provided by cryptography, passwords or both.
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