Secure data mechanism for iATA Protocol

The emerging of ubiquitous technology has transformed mobile device such as PDA and smart phone from a device once considered as a luxury to a daily requirements device. This trend has lead the increasing of mobile data storage demand. In year 2008, Internet Advanced Technology Attachment (iATA) has been introduce by Yu-Shu They et al as one of the alternate solution to resolve the mobile devices´ storage limitation issues. With iATA, mobile users are able to access their valuable data through the network anytime anywhere as is the storage device attached to them locally. However data safety is always a concern to the user in iATA environment as data transmission in iATA done via open TCP/IP network without adopting any security defense. The mobile user does not only wish to access their data ubiquity but they also can´t let go the security of their data. In this paper, we focus on how to provide data authentication and confidentiality for iATA protocol. Taking consideration of the mobile devices´ limited resources, we propose a lightweight secure data mechanism with the combination of nested hash function and NLM-128.In the propose mechanism we use nested hash function to provide data authentication, subsequently encrypt the message and the hash code with NLM-128 cipher to ensure the data confidentiality.