H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 5/44 (2011.01) H04L 9/32 (2006.01)
Patent
CA 2566801
Unlike the technology for a program downloaded through conventional broadcast waves, in the case of downloading a program via a network, there is a possibility that such program will be activated without noticing that the program is tampered with. For this reason, when a program is downloaded via a network, a file hierarchy for the program located on a server is constructed in a local area of a terminal. Subsequently, the authentication of the program is performed with respect to the file hierarchy constructed in the local area, and the credibility of the program is guaranteed.
Contrairement à un programme téléchargé au moyen d'une technologie faisant appel à des ondes de diffusion traditionnelles, un programme téléchargé par l'intermédiaire d'un réseau peut éventuellement être activé sans que l'on se rende compte qu'il a fait l'objet de manipulations frauduleuses. Ainsi, lorsqu'un programme est téléchargé par l'intermédiaire d'un réseau, une hiérarchie de fichiers concernant le programme se trouvant sur un serveur est générée dans une zone locale d'un terminal. Puis, le programme est authentifié à l'aide de la hiérarchie de fichiers générée dans la zone locale, et l'authenticité du programme est garantie.
Kawakami Yoshio
Kusudo Tadao
Matsushita Electric Industrial Co. Ltd.
Osler Hoskin & Harcourt Llp
Panasonic Corporation
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