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1. US20140133650 - License administration device and license administration method

官庁 アメリカ合衆国
出願番号 14129396
出願日 27.06.2012
公開番号 20140133650
公開日 15.05.2014
特許番号 09363081
特許付与日 07.06.2016
公報種別 B2
IPC
H04L 9/16
H電気
04電気通信技術
Lデジタル情報の伝送,例.電信通信
9秘密または安全な通信のための配置
14複数のキーまたはアルゴリズムを使用するもの
16キーまたはアルゴリズムが動作中に変更されるもの
G06F 21/10
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
10配布されたプログラムまたはコンテンツを保護するもの,例.著作物を販売またはライセンスするもの
CPC
H04L 9/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
14using a plurality of keys or algorithms
16the keys or algorithms being changed during operation
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 21/105
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
105Tools for software license management or administration, e.g. managing licenses at corporate level
出願人 Shingo Kinoshita
NEC Corporation
Koji Kawada
発明者 Shingo Kinoshita
Koji Kawada
代理人 Wilmer Cutler Pickering Hale and Dorr LLP
優先権情報 2011-144190 29.06.2011 JP
発明の名称
(EN) License administration device and license administration method
要約
(EN)

A license administration device manages grant or denial of each optional function in a plurality of licensee devices. The licensee device stores key information encrypted with a cipher key so as to issue a license change request activating or restricting the predetermined optional function. Upon receiving a license change request restricting the predetermined optional function, the license administration device overwrites the key information of the licensee device with a default key. Subsequently, upon receiving a license change request activating the predetermined optional function, the license administration device applies an upgrade key to the key information of the licensee device. The default key or the upgrade key can be decrypted using a cipher key unique to the licensee device. The license administration device manages the licensed maximum for the predetermined optional function and reflects an increment or decrement to the licensing maximum by applying the default key or the upgrade key.

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