Awasthi Amit K, Srivastava Keerti
School of Vocational Studies and Applied Sciences, Gautam Buddha University, Greater Noida, 201312, India,
J Med Syst. 2013 Oct;37(5):9964. doi: 10.1007/s10916-013-9964-1. Epub 2013 Aug 16.
In recent years, the increased availability of lower-cost telecommunications systems and customized patients monitoring devices made it possible to bring the advantages of telemedicine directly into the patient's home. These telecare medicine information systems enable health-care delivery services. These systems are moving towards an environment where automated patient medical records and electronically interconnected telecare facilities are prevalent. Authentication, security, patient's privacy protection and data confidentiality are important for patient or doctor accessing to Electronic Medical Records (EMR). A secure authentication scheme will be required to achieve these goals. Many schemes based on cryptography have been proposed to achieve the goals. However, many schemes are vulnerable to various attacks, and are neither efficient, nor user friendly. Specially, in terms of efficiency, some schemes are resulting in high time cost. In this paper we propose a new authentication scheme that is using the precomputing to avoid the time-consuming exponential computations. Finally, it is shown to be more secure and practical for telecare medicine environments.
近年来，低成本电信系统和定制化患者监测设备的可用性不断提高，使得远程医疗的优势能够直接惠及患者家庭。这些远程护理医学信息系统实现了医疗保健服务的提供。这些系统正朝着自动化患者病历和电子互联远程护理设施普及的环境发展。认证、安全、患者隐私保护和数据保密对于患者或医生访问电子病历（EMR）至关重要。需要一种安全的认证方案来实现这些目标。已经提出了许多基于密码学的方案来实现这些目标。然而，许多方案容易受到各种攻击，既不高效，也不便于用户使用。特别是在效率方面，一些方案导致时间成本过高。在本文中，我们提出了一种新的认证方案，该方案使用预计算来避免耗时的指数运算。最后，结果表明该方案在远程护理医学环境中更安全、更实用。
