普适环境中基于一次性公钥的匿名认证方案

摘要

提出一种基于身份的一次性公钥及签名算法,与现有算法相比,该算法具有较小的计算和通信开销.基于该算法设计了一种普适环境中的匿名认证方案,当用户进行恶意操作时,服务提供者通过和可信中心合作可以揭示恶意用户身份.方案在提供强匿名性的同时,可有效防止用户进行恶意活动.%A signature scheme with the one-off public key was proposed based on identity-based cryptography, which hadless calculating and communicating expense compared with available schemes. An anonymous authentication schemewas designed based on the proposed signature scheme. When users committed, service provider together with the trustedcenter could reveal the malicious user's identity. The proposed scheme can realize strong anonymity and prevent the usercommitting.