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中文摘要：
提出了一种基于单向密钥链的传感器网络认证方案，该方案能够提供实时认证，较好地满足了时延和存储量要求，且能有效地防止重放、假冒和拒绝服务等各种攻击，并具有低开销和可扩展性强等特点。同时，考虑到节点计算速度、电源能量、通信能力和存储空间非常有限的特点，相关的协议和算法都设计得比较简单，并避开了代价昂贵的公钥运算，因而方案的计算、存储和通信开销都较小，执行效率大大提高。此外，本方案在不排除网内处理和节点被动加入的情况下，支持数据源认证。
英文摘要：
This paper presents an efficient authentication scheme based on one-way key chain for sensor network, which provides immediate authentication to fulfill the latency and the storage requirements and defends against various attacks such as replay, impersonation and denial of service. Our scheme satisfies several nice properties, including low overhead and scalability to large networks. Furthermore, the related protocols or algorithms in our scheme are very simple and no expensive public-key operation is required in view of resource-starved sensor nodes, which minimizes the storage, computation, communication overhead and improves the efficiency of our scheme. In addition, the proposed scheme also supports source authentication without precluding in-network processing and passive participation.
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