Process and apparatus for the simultaneous and remote reading and certifying of an information present in a memory of an electronic medium
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United States of America Patent
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Mar 28, 1989
Grant Date -
N/A
app pub date -
Mar 14, 1988
filing date -
Mar 13, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Process for simultaneously reading and certifying, useing a processing device, an information present at an address in a memory of an electronic medium, in particular a removable and portable medium such as a memory card. The process uses a random number, generated in the processing device, as an encoding key for the address and the information read. Thus the information is certified if the sent address and the received address are identical. Preferably the encoding algorithm is the DES.
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