计算机工程2011，Vol.37Issue(6)：138-140,3.DOI:10.3969/j.issn.1000-3428.2011.06.048
基于身份加密的图像口令认证方案
Graphical Password Authentication Scheme with Identity-Based Encryption
摘要
Abstract
Authentication protocol based on the symmetric key demands the both communicators share the same key, and there is safety problem in the updating of the shared key. In order to solve the problems, this paper proposes a scheme which can register the graphical passwords with digital envelope. It resolves the key update with key establishment based on Identity-Based Encryption(lBE), and resists shoulder surfing adopting dynamic graphical sequence. Users can choose graphical passwords freely. Analysis result proves that the scheme can resist common attacks like replay attack effectively, and its communication cost is reduced.关键词
图像口令/数字信封/基于身份加密/密钥更新Key words
graphical password/ digital envelope/ Identity-Based Encryption(IBE)/ key update分类
信息技术与安全科学引用本文复制引用
章启恒,唐西林..基于身份加密的图像口令认证方案[J].计算机工程,2011,37(6):138-140,3.基金项目
国家自然科学基金资助项目"后量子密码:多变量公钥密码体制"(60973131) （60973131）
