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1. WO2000043856 - SECURE PUBLIC DIGITAL WATERMARK

Publication Number WO/2000/043856
Publication Date 27.07.2000
International Application No. PCT/US2000/001170
International Filing Date 18.01.2000
Chapter 2 Demand Filed 02.08.2000
IPC
G06F 1/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
1Details not covered by groups G06F3/-G06F13/82
G06F 21/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
G06T 1/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
1General purpose image data processing
CPC
G06F 21/10
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
10Protecting distributed programs or content, e.g. vending or licensing of copyrighted material
G06F 2211/007
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2211Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
007Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
G06F 2221/0737
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2221Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
07Indexing scheme relating to G06F21/10, protecting distributed programs or content
0722Content
0737Traceability
G06F 2221/0797
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2221Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
07Indexing scheme relating to G06F21/10, protecting distributed programs or content
0797using dedicated hardware at the client
G06T 1/0021
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
1General purpose image data processing
0021Image watermarking
Applicants
  • INTEL CORPORATION [US/US]; 2200 Mission College Boulevard Santa Clara, CA 95052, US (AllExceptUS)
  • DAVIS, Derek [US/US]; US (UsOnly)
Inventors
  • DAVIS, Derek; US
Agents
  • MILLIKEN, Darren, J. ; Blakely, Sokoloff, Taylor & Zafman LLP 7th floor 12400 Wilshire Boulevard Los Angeles, CA 90025, US
Priority Data
09/237,32325.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SECURE PUBLIC DIGITAL WATERMARK
(FR) FILIGRANE NUMERIQUE PUBLIC SECURISE
Abstract
(EN)
A cryptographic device and corresponding method for producing a cloaked watermark which is a private watermark having the functionality of a public watermark. In one embodiment, the cryptographic device comprises an internal memory and a processor contained in a package. The internal memory provides a region for storage of key information used at least to produce the cloaked watermark. The processor is coupled to the internal memory and is responsible for producing a cloaked watermark based on the key and for inserting the cloaked watermark into an outgoing data set.
(FR)
L'invention concerne un dispositif de cryptographie et son procédé correspondant permettant de produire un filigrane « sous cloche » ($i(cloaked)), à savoir un filigrane privé ayant la fonctionnalité d'un filigrane public. Dans un mode de réalisation, ce dispositif de cryptographie comprend une mémoire interne ainsi qu'un processeur contenus dans un contenant. La mémoire interne offre une zone de stockage pour les informations clé utilisées au moins en vue de produire la filigrane « sous cloche ». Le processeur, couplé à la mémoire interne, produit ledit filigrane d'après la clé et l'insère dans un ensemble de données sortant.
Also published as
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