Polymorphic data structures for secure operation of a virtual cash system
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United States of America Patent
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Feb 8, 2000
Grant Date -
N/A
app pub date -
May 22, 1997
filing date -
May 22, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for transferring value carrying data packets representative of cash between transferor and transferee terminals without the intervention of a centralized database provides for data packets convertible between an inspected state and an uninspected state. Data packets in an inspected state can be negotiated between terminals once, whereupon they become uninspected and hence, non-negotiable. Uninspected data packets are restored to inspected state by having a central bank compare a hash code generated by a transferor terminal against a corresponding hash code generated by the central bank.
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