Method and apparatus for performing simultaneous data...

Details Method and apparatus for performing simultaneous data... Method and apparatus for performing simultaneous data...

H - Electricity

04

L

H04L 9/28 (2006.01) G06T 9/00 (2006.01) H03M 7/30 (2006.01) H03M 7/42 (2006.01) H04L 9/18 (2006.01)

Patent

CA 2205127

Abstract A method and apparatus for performing simultaneous data compression and encryption both compresses and encrypts data in a single step. The invention includes a novel modeling method for use in conjunction with a coder, such as an arithmetic coder. The modeling method introduces randomness into the compression process, with the result that the output stream is secure.

L'invention est constituée par une méthode et un appareil servant à effectuer une compression et un chiffrement de données en une seule opération. Elle comprend une nouvelle méthode de modélisation utilisée avec un codeur tel qu'un codeur arithmétique. Cette méthode de modélisation introduit dans le processus de compression un élément de hasard qui a pour résultat de protéger la chaîne de données de sortie.

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