Abstract: According to the features of autonomic intrusion tolerant system compared with ordinary network security system, a survivability evaluating special for autonomic intrusion tolerant system is proposed. Four evaluation indexes such as the secret of data, the integrality of data, the usability of service and autonomic of system are proposed based on the influence of intrusion and the function of autonomic intrusion tolerance. The ways of quantifying the indexes are given according to the features of each index. The survivability situation of autonomic intrusion tolerant system is evaluated dynamically through computing the four evaluation indexes.

Key words: autonomic computing, intrusion tolerance, network security system, threshold cryptography, survivability evaluation

摘要： 现有网络系统的评估方法不能很好地满足自律入侵容忍系统可生存性的评估要求。为此，提出一种针对自律入侵容忍系统的可生存性评估方法。根据入侵对系统造成的影响及自律入侵容忍的功能，构建数据机密度、数据完整度、服务可用度和系统自律度4项可生存性评估指标。给出各项指标的量化方法，通过对4项指标的定量计算，动态评估自律入侵容忍系统的可生存性。

关键词: 自律计算, 入侵容忍, 网络安全系统, 门限密码学, 可生存性评估

CLC Number: 

• TP309