XML Security — A Comparative Literature Review <s> Observation 3: XML Security for Mobile Computing <s> The emerging Web Services technology provides a systematic and standard-based approach to enable application-to-application integration. In this paper, we propose XKMS(XML Key Management Specification)-based key management service model and design protocol component based on standard specification. Also describes the analysis and security method of key management service for secure global XML Web Services, paying attention to the features of XML based security service. This service model offers the security construction guideline for future e-business and global XML Web Services frameworks. <s> BIB001 </s> XML Security — A Comparative Literature Review <s> Observation 3: XML Security for Mobile Computing <s> Mobile Grid, or Wireless Grid Services refers to value-added Grid Service by processing in Mobile environment. Besides Mobile Internet the traditional Internet computing is experiencing a conceptual shift from Client-Server model to Grid and Peer-to-Peer computing models. As these trends, Mobile Internet and the Grid, are likely to find each other the resource constraints that Wireless devices pose today affect the level of interoperability between them. The goal of this paper is to investigate how well the most limited Wireless devices can make use of Grid Security Services. This paper describes a novel security approach on Mobile Grid Services to validate certificate based on current Mobile XML Web Services Platform environment using XKMS (XML Key Management Specification) and SAML (Security Assertion Markup Language), XACML (extensible Access Control Markup Language) in XML Security mechanism. <s> BIB002
XML established itself as the standard for data exchange in distributed networks. At the same time a strong trend toward mobile applications and wireless networks can be observed (Project 2007) , manifested by the boom of Wireless LAN and navigational instruments. Nevertheless this field is not exhausted. A lot of new technologies, whose concrete evolution cannot be appreciated now, will join. Not only the application area but also the programming and implementation environment can vary strongly. By means of its flexibility XML is able to cover almost all requirements, especially as the usage in Mobile Computing was an objective of the development of XML. First of all the interoperability and the general agreement on this standard is the biggest advantage of XML in this field while its inefficiency seems to be the only handicap. The latter can have a very bad effect because many mobile devices have problems with bandwith and memory storage. Due to the fast evolution in mobile data transfer (e.g. HSDPA) and micromemory (e.g. micro-SD) this disadvantage will become obsolete in the near future. Many researchers and developers recognized this trend so that in mobile environment XML enjoys the same influence as in "traditionally wired" networks  . On basis of these evolutions the application of XML Security is consequentially. The literature review affirms this trend because 6 works deal with the concrete appliance in Mobile Computing. In addition, 4 articles defined the application of XML Security in mobile environment as Future Work ,  , BIB001 ,  . It is presumed that this trend will continue. Remarkably, 3 of these mentioned 4 articles deal with Web Services. Thus the combination of XML Security, Web Services and Mobile Computing can be very promising in the future. Also much information apart from this literature review indicate that particularly the IT industry shows large interest. Both of the two very similar articles BIB002 ) and  cover the appliance of XKMS in Mobile Grid systems. They tackle the development of a middleware framework for certificate validation with XKMS. For this purpose SAML is used for integrating Single Sign-On and XACML for the definition of a policy. The protocol for secure Mobile Grid applications is based on three main actors: the Mobile Grid application itself, the SAML processor and the XKMS server. Published in 2004, both publications address the already mentioned boom in the fields of Web Service and Mobile Computing. For a detailed description of the frameworks, including sequence and component diagrams,  ) is referenced.  gives an interesting insight in the appliance of XML Security in multimedia environment. Philips and the Eindhoven University of Technology work on a secure interactive application in connection with the new generation of optical disc formats like Blu-ray, High-Definition DVD (HD) and enhanced DVD. Unfortunately this article does not represent many of the far-reaching multimedia possibilities of XML Security. The opinions of the authors let us hope for further research in this field.