Transaction verification protocol for Smart Cards
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United States of America Patent
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Sep 21, 1999
Issued Date -
N/A
app pub date -
Jan 30, 1997
filing date -
Jan 31, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A protocol appropriate for use with smartcard purchase applications such as those that might be completed between a terminal or ATM and a users personal card. The protocol provides a signature scheme which allows the card to authenticate the terminal without unnecessary signature verification which is an computationally intense operation for the smart card. The only signature verification required is that of the terminal identification (as signed by the certifying authority, or CA, which is essential to any such protocol). In the preferred embodiment, the protocol provides the card and terminal from fraudulent attacks from impostor devices, either a card or terminal.
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