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    • 1. 发明授权
    • System and method for fault tolerant key management
    • 容错密钥管理系统和方法
    • US5621795A
    • 1997-04-15
    • US364323
    • 1994-12-27
    • Walter J. BakerFeliks BatorChunhua Li
    • Walter J. BakerFeliks BatorChunhua Li
    • E05B19/00H04L9/08H04L9/00
    • H04L9/083H04L2209/56
    • A system and method of fault tolerant key management of cryptographic keys includes a key distribution computer and primary and secondary key management computers coupled to the key distribution computer, Primary and secondary server computers are each coupled to the primary and secondary key management computers, One of the primary and secondary key management computers is operational at a time, The operational one of the primary and secondary key management computers writes key data received from the key distribution computer to an archive database in each of the primary and secondary server computers, The method includes the steps of requesting storage of key data by an operational one of the primary and secondary key management computers; monitoring the operational status of each of primary and secondary server computers; writing key data to an archive database in each of the primary and secondary servers that are operational; writing key data to a log file in an operational one of the primary and secondary servers when one of the primary and secondary servers is not operational; monitoring a return to operational status of the non operational one of the primary and secondary servers; and writing to the archive database of the non-operational one of the primary and secondary server computers the key data stored in the log file of the operational one of the primary and secondary server computers.
    • 密钥密钥的容错密钥管理的系统和方法包括密钥分发计算机和耦合到密钥分发计算机的主密钥管理计算机和主密钥管理计算机,主服务器和辅助服务器计算机各自耦合到主密钥管理计算机和辅助密钥管理计算机 主密钥管理计算机和次密钥管理计算机一次可操作,主密钥管理计算机和次密钥管理计算机中的操作一个将从密钥分发计算机接收的密钥数据写入每个主服务器和次服务器计算机中的归档数据库。该方法包括 通过主密钥管理计算机和主密钥管理计算机中的一个操作的请求来存储密钥数据的步骤; 监控主服务器和辅助服务器计算机的运行状态; 将关键数据写入可运行的主服务器和辅助服务器中的归档数据库; 当主服务器和辅助服务器之一不可操作时,将主要数据写入主服务器和辅助服务器中的操作的日志文件; 监测主要和次要服务器之间的非运行状态的恢复运行状态; 以及将主服务器计算机和次服务器计算机中的不可操作的主服务器计算机的不可操作的主服务器计算机的归档数据写入存储在主服务器计算机中的可操作的主服务器计算机的日志文件中的密钥数据。