计算机科学 ›› 2016, Vol. 43 ›› Issue (6): 135-140.doi: 10.11896/j.issn.1002-137X.2016.06.028
陆杰,宋香梅,韩牟,周从华
LU Jie, SONG Xiang-mei, HAN Mou and ZHOU Cong-hua
摘要： 由于无线网络本身的脆弱性和开放性,车载网很容易受到各种攻击和破坏,面临着信息伪造、篡改攻击与重放攻击等安全威胁。消息认证是保障车载网安全的有效技术之一,但是车载网规模较大、涉及的通信实体数量多且移动速度非常快的特点要求消息能够被快速认证。目前,b-SPECS+是公认的最好的消息批量认证的方案,具有基于软件、通信开销小、安全性高、批量认证的特点,但是该方案不能够抵制固定路边设备和车辆的合谋攻击。基于b-SPECS+提出了一个基于假名验证公钥的批量认证方案,并证明了该方案能够很好地抵制合谋攻击。性能分析结果表明,与b-SPECS+相比,所提方案不仅具有b-SPECS+的特点,而且在认证时延方面,认证的消息越多,其相对于其他方案的耗时越短。
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