Design and Implementation of RESTful Non-repudiation Services

Security issues can be a barrier to make successful online businesses because the Internet can make critical information vulnerable [1, 2]. Non-repudiation is a security feature that is related to integrity and authenticity [3]. Providing non-repudiation for online communication is a key factor to achieve a successful electronic business [2]. Non-repudiation should ensure that each involvement in an online interaction cannot be denied. Besides, non-repudiation, fairness between the parties also plays an important role to achieve successful electronic businesses. One solution used to achieve fair non-repudiation services is by using a trusted third party (TTP) that implements fair non-repudiation protocols [4]. This project uses work that has been done by Cook et al in 2006 [5] as a starting point, which was a non-repudiation service project that uses SOAP web service technology. However, this project aims to implement non-repudiation services using Representational State Transfer (REST) architecture style principles in order to obtain significant advantages that REST technology provides such as scalability and simplicity.