Method of securely storing and retrieving monetary data
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United States of America Patent
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-
Dec 21, 1999
Grant Date -
N/A
app pub date -
Feb 12, 1997
filing date -
Feb 12, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of securely storing and retrieving monetary values, such as electronic checks and electronic coins. In an interactive protocol between an issuer (e.g., a bank terminal) and a recipient (e.g., a smart card) of electronic money, authentication values (A, B, . . .) are produced by the issuer and are stored in an external storage device (e.g., an electronic wallet). At a later stage, the protocol is repeated between the recipient and the storage to securely retrieve the stored authentication values.
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