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    • 5. 发明授权
    • Method and system for secure distribution of subscription-based game software
    • 用于基于订阅的游戏软件的安全分发的方法和系统
    • US07409061B2
    • 2008-08-05
    • US09999180
    • 2001-11-29
    • Christopher R. Newcombe
    • Christopher R. Newcombe
    • H04K1/00H04L9/00
    • A63F13/71A63F13/12A63F13/61A63F13/77A63F13/822A63F2300/401A63F2300/532H04L9/0833H04L9/30H04L63/045H04L63/062H04L63/067H04L67/34H04L69/329H04L2209/56H04L2209/603H04L2209/76
    • Methods and Systems for securely distributing software in a subscription-based environment are provided. In an example embodiment, a Game Security Facility (“GSF”) associated with a game server is used to manage secure communications with game clients. The GSF typically manages secure communication of the accounting and billing information and secure communication of game session data. In typical operation, the game client generates a pass-phrase that transparently includes a unique identifier of the machine upon which the subscription software will reside. RSA-type key pairs that are then generated using this pass-phrase will be associated uniquely with both the game player and with the machine upon which the software resides, thus preventing unauthorized copying to another machine or unauthorized use by a third party. A public key generated using this pass-phrase is forwarded to the GSF, which uses it to generate a unique one-time random session key (for use as a symmetric key) for each session with the game client. The session key is then encrypted for the game client using the public key of the client. Session data, including the original game files downloaded upon successfully subscribing, are then transmitted between the game server and the game client using encrypted versions of the session key. In one embodiment, the game client can upgrade the machine upon which the subscription data resides, cause the session keys to be reissued using a new public key, and retain access to previously downloaded data.
    • 提供了在基于订阅的环境中安全地分发软件的方法和系统。 在示例实施例中,与游戏服务器相关联的游戏安全设施(“GSF”)用于管理与游戏客户端的安全通信。 GSF通常管理会计和计费信息的安全通信以及游戏会话数据的安全通信。 在典型的操作中,游戏客户端产生一个透明地包含订阅软件所在机器的唯一标识符的密码短语。 然后使用此密码短语生成的RSA型密钥对将与游戏玩家和软件所在的机器唯一相关联,从而防止未经授权的复制到另一机器或由第三方未经授权的使用。 使用该密码短语产生的公开密钥被转发到GSF,GSF使用它来为游戏客户端的每个会话生成唯一的一次随机会话密钥(用作对称密钥)。 然后使用客户端的公钥对游戏客户端加密会话密钥。 会话数据,包括在成功订阅后下载的原始游戏文件,然后使用会话密钥的加密版本在游戏服务器和游戏客户端之间传输。 在一个实施例中,游戏客户端可以升级订阅数据所在的机器,使得使用新的公钥重新发行会话密钥,并保留对先前下载的数据的访问。