Department of Computer Science and Information Engineering, Chang Gung University, No. 259, Wenhua 1st Rd., Guishan Dist., Taoyuan City, 33302, Taiwan, Republic of China,
J Med Syst. 2015 May;39(5):58. doi: 10.1007/s10916-015-0240-4. Epub 2015 Mar 22.
Authenticated key agreements for telecare medicine information systems provide patients, doctors, nurses and health visitors with accessing medical information systems and getting remote services efficiently and conveniently through an open network. In order to have higher security, many authenticated key agreement schemes appended biometric keys to realize identification except for using passwords and smartcards. Due to too many transmissions and computational costs, these authenticated key agreement schemes are inefficient in communication and computation. This investigation develops two secure and efficient authenticated key agreement schemes for telecare medicine information systems by using biometric key and extended chaotic maps. One scheme is synchronization-based, while the other nonce-based. Compared to related approaches, the proposed schemes not only retain the same security properties with previous schemes, but also provide users with privacy protection and have fewer transmissions and lower computational cost.
用于远程医疗信息系统的身份验证密钥协议为患者、医生、护士和健康访视员提供了通过开放网络高效、便捷地访问医疗信息系统和获得远程服务的方式。为了获得更高的安全性，许多身份验证密钥协议方案除了使用密码和智能卡外，还附加了生物识别密钥来实现身份验证。由于传输和计算成本过高，这些身份验证密钥协议在通信和计算方面效率不高。本研究通过使用生物识别密钥和扩展的混沌映射，为远程医疗信息系统开发了两种安全高效的身份验证密钥协议。一个方案是基于同步的，另一个方案是基于随机数的。与相关方法相比，所提出的方案不仅保留了与先前方案相同的安全属性，还为用户提供了隐私保护，并且传输更少，计算成本更低。
