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The telecare medical information system (TMIS) aims to establish telecare services and enable the public to access medical services or medical information at remote sites. Authentication and key agreement is essential to ensure data integrity, confidentiality, and availability for TMIS. Most recently, Chen et al. proposed an efficient and secure dynamic(More)
To ensure only authorized access to medical services, several authentication schemes for telecare medicine information systems (TMIS) have been proposed in the literature. Due to its better performance than traditional cryptography, Hao et al. proposed an authentication scheme for TMIS using chaotic map based cryptography. They claimed that their scheme(More)
User authentication with unlinkability is one of the corner stone services for many security and privacy services which are required to secure communications in wireless sensor networks (WSNs). Recently, Xue et al. proposed a temporal-credential-based mutual authentication and key agreement scheme for WSNs, and claimed that their scheme achieves identity(More)
Smart-card-based password authentication scheme is one of the commonly used mechanisms to prevent unauthorized service and resource access and to remove the potential security threats over the insecure networks and has been investigated extensively in the last decade. Recently, Chen et al. proposed a smart-card-based password authentication scheme and(More)
Global mobility network (GLOMONET) provides global roaming service to ensure ubiquitous connectivity for users traveling from one network to another. It is very crucial not only to authenticate roaming users, but to protect the privacy of users. However, due to the broadcast nature of wireless channel and resource limitations of terminals, providing(More)
Only identities of the server and the user are authenticated in traditional smart cards based password authentication schemes, but the platform does not be verified, and which cannot provide enough protection on personal information of the user. A mutual authentication scheme based on smart cards and password is proposed under trusted computing, in which(More)
A fast handover authentication scheme is essential to seamless services for delaysensitive applications in wireless networks. User privacy is a notable issue which should be considered in secure communications. This paper proposes a new privacy-aware handover authentication scheme. The proposed scheme achieves user privacy with good performance.
Wireless sensor networks (WSNs) will be integrated into the future Internet as one of the components of the Internet of Things, and will become globally addressable by any entity connected to the Internet. Despite the great potential of this integration, it also brings new threats, such as the exposure of sensor nodes to attacks originating from the(More)