Request linked digital watermarking

Details Request linked digital watermarking Request linked digital watermarking

2005-12-05

2011-10-04

Shiferaw, Eleni (Department: 2437)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

Reexamination Certificate

active

08032755

ABSTRACT:
A method for digitally signing information in real-time, based on a user request for the information. In one embodiment, the method is useful in a Web server, and can be implemented using a server-side API filter. One embodiment of the method includes receiving a data request from a user and determining whether the data requested should be marked. If the data should be marked, the method includes marking the data with a signature identifying at least one component of the user request; and storing information identifying the user with the request and the at least one component. Multiple types of marking techniques can be used on a single data file.

REFERENCES:
patent: 6425081 (2002-07-01), Iwamura
patent: 7434057 (2008-10-01), Yagawa
patent: 2005/0193205 (2005-09-01), Jacobs et al.
patent: 2006/0212705 (2006-09-01), Thommana et al.

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