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    • 30. 发明申请
    • SYSTEMS AND METHODS FOR KEY MANAGEMENT FOR WIRELESS COMMUNICATIONS SYSTEMS
    • 无线通信系统的关键管理系统与方法
    • US20080070577A1
    • 2008-03-20
    • US11843583
    • 2007-08-22
    • Vidya NarayananLakshminath DondetiParag AgashePaul Bender
    • Vidya NarayananLakshminath DondetiParag AgashePaul Bender
    • H04Q7/20
    • H04L63/062H04L9/0844H04L9/0891H04L2209/80H04L2463/061H04W12/04H04W36/08
    • A novel key management approach is provided for securing communication handoffs between and access terminal and two access points. This approach provides for securely handing off communications between an access terminal and access point without risking exposure a master key for the access terminal. Temporary master keys are derived for low latency handoffs and secure authentication between a new access point and the access terminal. In one aspect, a distributive key management scheme is provided in which a current access point generates a new security key (based on its own security key) that is used by the next access point with which an access terminal communicates. In another aspect, a centralized key management scheme is provided in which a central authenticator maintains, generates, and distributes new security keys (based on a master security key associated with the access terminal) to access points.
    • 提供了一种新颖的密钥管理方法,用于保证接入终端与两个接入点之间的通信切换。 这种方法提供了安全地切断接入终端和接入点之间的通信,而不会冒着接入终端的主密钥的风险。 派生临时主密钥用于低延迟切换和新接入点与接入终端之间的安全认证。 一方面,提供一种分配密钥管理方案,其中当前接入点生成由接入终端与之通信的下一个接入点使用的新的安全密钥(基于其自身的安全密钥)。 在另一方面,提供一种集中式密钥管理方案,其中中央认证器维护,生成和分发新的安全密钥(基于与接入终端相关联的主安全密钥)到接入点。