Information processing apparatus for watermarking digital...

Details Information processing apparatus for watermarking digital... Information processing apparatus for watermarking digital...

2007-05-08

2007-05-08

Sheikh, Ayaz (Department: 2131)

Information security

Prevention of unauthorized use of data including prevention...

Copy detection

C713S176000, C713S189000, C726S027000, C705S057000, C705S059000

Reexamination Certificate

active

10276907

ABSTRACT:
This invention relates to an information processing apparatus for managing copyrights under SDMI provisions as well as the copyrights for contents distributed over the Internet. Data Enc(Kc, Content) generated by encrypting a given content using a content key Kc are recorded, along with a header (Header), certificate (Cert), data Enc(KR, Kc) generated by encrypting the content key Kc using a root key KR, and an enabling key block (EKB). The header includes a content ID (CID), a license ID (LID), a URL, and a watermark (WM), supplemented with a header signature Sig(Header). The inventive apparatus is applied to devices that provide contents.

REFERENCES:
patent: 6611607 (2003-08-01), Davis et al.
patent: 6792113 (2004-09-01), Ansell et al.
patent: 6886098 (2005-04-01), Benaloh
patent: 6912512 (2005-06-01), Miyazaki et al.
patent: 7046807 (2006-05-01), Hirano et al.
patent: 2001/0037456 (2001-11-01), Levy
patent: 2001/0051996 (2001-12-01), Cooper et al.
patent: 2002/0007456 (2002-01-01), Peinado et al.
patent: 2002/0049580 (2002-04-01), Kutaragi et al.
patent: 2002/0052885 (2002-05-01), Levy
patent: 2002/0077988 (2002-06-01), Sasaki et al.
patent: 2002/0138593 (2002-09-01), Novak et al.
patent: 2002/0194209 (2002-12-01), Bolosky et al.
patent: 2003/0135464 (2003-07-01), Mourad et al.
patent: 0 999 488 (2000-05-01), None
patent: 1 001 419 (2000-05-01), None
patent: 11-55618 (1999-02-01), None
patent: 2000-172648 (2000-06-01), None
patent: 2000-207835 (2000-07-01), None
patent: 2000-357201 (2000-12-01), None
patent: 2001-52072 (2001-02-01), None

Affiliated with

Also associated with

Rating

Information processing apparatus for watermarking digital... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Information processing apparatus for watermarking digital..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information processing apparatus for watermarking digital... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3799650