Synchronization of cryptographic keys between two modules of a distributed system
    3.
    发明公开
    Synchronization of cryptographic keys between two modules of a distributed system 失效
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    公开(公告)号:EP0881600A2

    公开(公告)日:1998-12-02

    申请号:EP98109736.3

    申请日:1998-05-28

    申请人: PITNEY BOWES INC.

    IPC分类号: G07B17/00

    摘要: The apparatus comprises: a first module including a universal key; a second module including a unique identifier and a unique key wherein the unique key is derived from the unique identifier and the universal key and incorporated into the second module during manufacture of the second module. The second module is in communication with the first module. The apparatus further comprises a controller for performing the following subsequent to manufacture of the first module and the second module: initiating a communication session between the first module and the second module; transmitting the unique identifier from the second module to the first module; and deriving the unique key in the first module using the unique identifier and the universal key. A method for synchronization of cryptographic keys between modules of a distributed system and a method of manufacturing a postage evidencing system are also provided.

    摘要翻译: 该装置包括:第一模块,包括通用钥匙; 包括唯一标识符和唯一密钥的第二模块,其中所述唯一密钥是从所述唯一标识符和所述通用密钥导出的,并且在所述第二模块的制造期间被并入所述第二模块。 第二模块与第一模块通信。 该装置还包括一个控制器,用于执行后面的第一模块和第二模块的制造:发起在第一模块和第二模块之间的通信会话; 将所述唯一标识符从所述第二模块发送到所述第一模块; 并使用唯一标识符和通用密钥来导出第一模块中的唯一密钥。 还提供了一种用于在分布式系统的模块之间的加密密钥的同步的方法和制造邮资证明系统的方法。