Wireless body area networks (WBANs) are receiving a significant interest as an emerging technology in next generation wireless networks. Security challenges as well as this interest are also beginning to rise to the surface. We derived specific security requirements from WBANs, and proposed a new hybrid security protocol for WBANs which satisfies these requirements. This proposed protocol dealt with the overall security including up to the in‐ on‐, and out‐body, and utilized two heterogeneous cryptosystems (the symmetric and asymmetric) for diverse environments of WBANs. Our protocol shows that it satisfies more security requirements than existing security protocols including the overall coverage of WBANs. Copyright © 2010 John Wiley & Sons, Ltd.

As the internet has been widely spread, it becomes big issues that an excessive demand of unnecessary private information at Web servers and invasion of privacy. Anonymous authentication technology is a solution of this problem. It can protect the personal information and guarantees the convenience which an Internet gives in our life. Anonymous authentication is an authentication method based on a digital signature scheme offering anonymity such as blind signature, group signature, ring signature, traceable signature, etc. The digital signature scheme that providing anonymity had been being mainly studied for an application including an e-cash and electronic voting system, etc. But recently the digital signature method is studied in the Internet environment with one of the anonymous authentication method for the protecting personal information. In this paper, we introduce a group signature scheme which is one of the signature schemes supplying anonymity and propose the anonymous authentication system structure using the group signature scheme.

Environment of the Next-Generation is organized by various sensors and devices. wireless body area network (WBAN) is the core technology connecting Next-Generation's compositional elements around the human to one network. Recently while many researches including healthcare services and wearable PC are actively in progress, technologies of WBAN gradually are beginning to receive the attention, and including various issues that have the close relation with their technical development. The one of WBAN issues is security. Information in WBAN is the collection of data about vital body parameter from several parts of the body. While it is a clue for healthcare or treatment, it is of personal nature and needs to be secured. In this paper, we propose the security model and the security framework to protect the personal healthcare information in WBAN. This acts as guide providing appropriate security and privacy protection of the wireless communication in WBAN.