Tree-Based Revocation for Certificateless Authentication in Vehicular Ad-Hoc Networks

• 作者: Cándido Caballero-Gil Francisco Martín-Fernández Pino Caballero-Gil
• 来源期刊: 电脑和通信(英文)
• 学科: 工学
• 关键词: K-Ary TREE IDENTITY-BASED Cryptography REVOCATION Hash Function Vehicular AD-HOC Network
• 年，卷（期）: 2014,（9）
• 页码范围: 14-21
• 页数: 8页
• 分类号: TN91

摘要

This work proposes authentication based on identity as a way to increase the efficiency and security of communications in vehicular ad-hoc networks. When using identity-based cryptography to achieve certificateless authentication, membership revocation is not a trivial problem. Thus, in order to improve the performance of revocation in such networks, the use of a dynamic authenticated data structure based on perfect k-ary hash trees combined with a duplex version of the new standard SHA-3 is here presented. Efficient algorithms in the used revocation trees allow reaching a refresh rate of at most simple updates per inserted node. Consequently, the proposal is especially useful for situations with frequent revocations, which are foreseeable when vehicular ad- hoc networks are widely deployed.