Identification information embedding apparatus and...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique

Reexamination Certificate

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C726S026000

Reexamination Certificate

active

07346777

ABSTRACT:
An identification information apparatus detects first and second boundary position information representing boundary positions on a high-order bit side and a low-order bit side of codes formed of components, extracts a colluder group matching with a set of the first and second boundary position information among colluder groups including combinations of an arbitrary number of identification information which is not more than a predetermined maximum number, and detects identification information which is common to a plurality of the colluder groups.

REFERENCES:
patent: 6430301 (2002-08-01), Petrovic
patent: 6901515 (2005-05-01), Muratani
patent: 2003/0009671 (2003-01-01), Yacobi et al.
patent: 2003/0026422 (2003-02-01), Gerheim et al.
patent: 2000-3129 (2000-01-01), None
patent: 2000-003129 (2000-01-01), None
Su et al, “A Content-Dependent Spatially Localized Video Watermark For Resistance to Collusion And Interpolation Attacks” IEEE, pp. 818-821.
Hel-Or et al, “Geometric Hashing Techniques For Watermarking” IEEE, pp. 498-501.
Dan Boneh, et al. “Collusion-Secure Fingerprinting for Digital Data,” Department of Computer Science, Princeton University, 1995, pp. 452-465.
Hirofumi Muratani, “A Collusion-Secure Fingerprinting Code Reduced by Chinese Remaindering and its Random-Error Resilience,” IH 2001, LNCS 2137, 2001, pp. 303-315.
U.S. Appl. No. 10/351,477, filed Jan. 27, 2003, Muratani.
U.S. Appl. No. 10/648,522, filed Aug. 27, 2003, Muratani.

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