Data protection method and device

An apparatus and method for encoding and decoding additional information into a digital information in an integral manner. More particularly, the invention relates to a method and device for data protection.

COMPUTING; CALCULATING OR COUNTING

Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity-Authentication, i.e. establishing the identity or authorisation of security principals-User authentication-using certificates-for accessing specific resources, e.g. using Kerberos tickets

ELECTRIC DIGITAL DATA PROCESSING 

General purpose image data processing-Image watermarking

IMAGE DATA PROCESSING OR GENERATION, IN GENERAL

Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00-Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress

ELECTRIC COMMUNICATION TECHNIQUE

Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00-Digital content management, e.g. content distribution-Copy protection

TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 

Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity-Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ;  ; ; Digital rights management [DRM]

Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity-Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ;  ; ; Digital rights management [DRM]-Program or content traceability, e.g. by watermarking

Cryptographic mechanisms or cryptographic;  arrangements for secret or secure communications; Network security protocols-the encryption apparatus using shift registers or memories for block-wise ; or stream;  coding, e.g. DES systems ; or RC4; Hash functions; Pseudorandom sequence generators-Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3

Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity-Protecting data-Providing cryptographic facilities or services

General purpose image data processing-Image watermarking-whereby only watermarked image required at decoder, e.g. source-based, blind, oblivious

Cryptographic mechanisms or cryptographic;  arrangements for secret or secure communications; Network security protocols-including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials-using cryptographic hash functions

Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity-Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity-File encryption

Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity-Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ;  ; ; Digital rights management [DRM]-Protecting executable software-Restricting unauthorised execution of programs-by manipulating the program code, e.g. source code, compiled code, interpreted code, machine code

Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity-Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ;  ; ; Digital rights management [DRM]-by binding digital rights to specific entities-to users

General purpose image data processing-Image watermarking-for copy protection or copy management, e.g. CGMS, copy only once, one-time copy

Cryptographic mechanisms or cryptographic;  arrangements for secret or secure communications; Network security protocols-including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials-involving digital signatures

Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00-Digital content management, e.g. content distribution-Watermarking

Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity-Protecting data-Protecting access to data via a platform, e.g. using keys or access control rules-to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself

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