Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2000-08-24
2010-06-29
Tran, Ellen (Department: 2433)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
Reexamination Certificate
active
07747866
ABSTRACT:
The invention detects changes in one or more parameter values sent by a server through user space. In one embodiment, a Web server communicates with a client over the Internet. Before sending the parameter value or values to the client, the server performs a pre-processing step, creating a formatted data string. The server then transmits the formatted data string to the client in a URL or a cookie. When the client returns the formatted data string and other data to the server, the server performs a post-processing step to verify that the parameter value or values have not been tampered with. This round trip technique is a departure from approaches that merely detect tampering of data as it passes between two nodes of a network.
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Hunton & Williams LLP
JPMorgan Chase Bank N.A.
Tran Ellen
LandOfFree
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