Identification verification method and system
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United States of America Patent
Stats
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Jul 7, 1987
Grant Date -
N/A
app pub date -
Dec 21, 1984
filing date -
Dec 21, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A secure system provides identification verification by transmission of an access number, preferably a random number, from a central processor to a remote terminal. The system provides portable identification devices for use by individuals, programmed to perform specified mathematical functions on data input thereto. The user obtains the access number from a remote terminal, and provides selected digits therefrom as input to the portable device. The result of the mathematical function performed on the selected digits is transmitted to the host processor for comparison with a similar result obtained by performing the mathematical function associated with the identified user on a selected subset of digits of the access number selected in accordance with a selection pattern associated with the user. As a further step for securing operation of the system, only selected digits of the results may be provided for comparison.
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