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    • 2. 发明公开
    • 콘텍스트 한정된 공유 비밀
    • 有限公司共享秘密
    • KR1020070102749A
    • 2007-10-19
    • KR1020077020727
    • 2006-02-10
    • 퀄컴 인코포레이티드
    • 패돈마이클로즈그레고리고든셈플제임스호크스필립마이클
    • H04L9/08
    • H04L9/085
    • In a communication system in which two communication entities seek to have a private or confidential communication session, a trust relationship needs first be established. The trust relationship is based on the determination of a shared secret which in turn is generated from contextual information. The contextual information can be derived from the circumstances surrounding the communication session. For example, the contextual information can include topological information, time-based information, and transactional information. The shared secret may be self-generated or received from a third party. In either event, the shared secret may be used as key material for any cryptographic protocol used between the communication entities.
    • 在两个通信实体寻求私人或机密通信会话的通信系统中,首先需要建立信任关系。 信任关系是基于共享秘密的确定,而这个秘密又是从上下文信息中产生的。 上下文信息可以从通信会话周围的情况导出。 例如,上下文信息可以包括拓扑信息,基于时间的信息和事务信息。 共享密钥可以是自生产的或从第三方接收的。 在任一情况下,共享秘密可以用作在通信实体之间使用的任何加密协议的关键材料。