期刊名称：International Journal of Computer Science Issues
印刷版ISSN：1694-0784
电子版ISSN：1694-0814
出版年度：2013
卷号：10
期号：6
出版社：IJCSI Press
摘要：Authentication in low power devices is still considered to be an expensive process. CertificateLess Signature is one of the approaches to facilitate authentication in these devices. Wireless Sensor Networks (WSNs) are such low power inexpensive networks, which needs authentication of message. In this paper, a CertificateLess Signature proposed by Gong et al. is analyzed and an approach is being proposed to reduce the computation cost by more than 50 percent. The main benefits of our approach are (i) some computations can be performed by Key Generation Center (KGC) instead of sensor node (ii) signature size is merely increased a few bytes but saves a lot computation in multi-hop networks (iii) balance of computations on all sensor nodes and hence, increases the overall network lifetime.
关键词：Wireless Sensor Networks; Certificateless cryptography; Digital Signature.
