Method and apparatus for embedding authentication information wi

Details Method and apparatus for embedding authentication information wi Method and apparatus for embedding authentication information wi

1997-03-26

1999-06-15

Gregory, Bernarr E.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 25, 380 30, 380 49, 380 50, 380 54, H04L 900

Patent

active

059129727

ABSTRACT:
Arbitrary digital information is embedded within a stream of digital data, in a way that avoids detection by a casual observer and that allows a user to determine whether the digital data have been modified from their intended form. The embedded information may only be extracted as authorized and may be used to verify that the original digital data stream has not been modified.

REFERENCES:
patent: 4433207 (1984-02-01), Best
patent: 4639548 (1987-01-01), Oshima et al.
patent: 4750173 (1988-06-01), Bluthgen
patent: 4943973 (1990-07-01), Werner
patent: 4969041 (1990-11-01), O'Grady et al.
patent: 5161210 (1992-11-01), Druyvesteyn et al.
patent: 5200822 (1993-04-01), Bronfin e tal.
patent: 5243423 (1993-09-01), DeJean et al.
patent: 5319735 (1994-06-01), Preuss et al.
patent: 5327237 (1994-07-01), Gerdes et al.
patent: 5387941 (1995-02-01), Montgomery et al.
patent: 5450490 (1995-09-01), Jensen et al.
patent: 5530751 (1996-06-01), Morris
patent: 5539471 (1996-07-01), Myhrvold et al.
patent: 5557333 (1996-09-01), Jungo et al.
patent: 5568570 (1996-10-01), Rabbani
patent: 5572247 (1996-11-01), Montgomery et al.
patent: 5574962 (1996-11-01), Fardeau et al.
patent: 5579124 (1996-11-01), Aijala et al.
patent: 5581800 (1996-12-01), Fardeau et al.
patent: 5587743 (1996-12-01), Montgomery et al.
patent: 5606609 (1997-02-01), Houser et al.
patent: 5636995 (1997-06-01), Sharpe, III et al.
patent: 5671277 (1997-09-01), Ikenoue et al.
patent: 5778102 (1998-07-01), Sandford, II et al.

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