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1. IN234/DELNP/2014 - LICENSE ADMINISTRATION DEVICE AND LICENSE ADMINISTRATION METHOD

官庁 インド
出願番号 234/DELNP/2014
出願日 10.01.2014
公開番号 234/DELNP/2014
公開日 05.06.2015
公報種別 A
IPC
G06F 21/22
G物理学
06計算;計数
F電気的デジタルデータ処理
21不正行為から計算機,その部品,プログラムまたはデータを保護するためのセキュリティ装置
22プログラムまたはプロセスへのアクセスの制限によるもの,またはそれへの操作の制限によるもの
出願人 NEC Corporation
発明者 KINOSHITA Shingo
KAWADA Koji
優先権情報 2011144190 29.06.2011 JP
発明の名称
(EN) LICENSE ADMINISTRATION DEVICE AND LICENSE ADMINISTRATION METHOD
要約
(EN)
A license administration device administers permissions of an option function for a plurality of licensee devices. A licensee device stores key information which is encrypted with an encryption key and issues a license change request which denotes either restricting or releasing a prescribed option function. Upon receiving the license change request which denotes restricting the prescribed option function a license administration device overwrites a default key with the key information of the licensee device. Upon receiving thereafter the license change request which denotes releasing the prescribed option function the license administration device applies an upgrade key to the key information of the licensee device. The default key and the upgrade key can be decrypted only by an encryption key which is unique to the licensee device. The license administration device administers the prescribed option function upper bound number of permissions and reflects the change value of the upper bound of the number of permissions said upper bound value being changed by applying the default key and the upgrade key.

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