Formal specification and verification of the OMA license choice algorithm in the OTS/CafeOBJ method

Triantafyllou, N; Ouranos, I; Stefaneas, P; Frangos, P

dc.contributor.author	Triantafyllou, N	en
dc.contributor.author	Ouranos, I	en
dc.contributor.author	Stefaneas, P	en
dc.contributor.author	Frangos, P	en
dc.date.accessioned	2014-03-01T02:46:48Z
dc.date.available	2014-03-01T02:46:48Z
dc.date.issued	2010	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32860
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-78751486020&partnerID=40&md5=2f7609b65be7d5c55413adce09757326	en
dc.relation.uri	http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=05741484	en
dc.relation.uri	http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5741484	en
dc.relation.uri	http://www.informatik.uni-trier.de/~ley/db/conf/winsys/winsys2010.html#TriantafyllouOSF10	en
dc.subject	CafeOBJ	en
dc.subject	License choice algorithm	en
dc.subject	Mobile digital rights systems	en
dc.subject	Observational transition systems	en
dc.subject	OMA-rights expression language	en
dc.subject.other	CafeOBJ	en
dc.subject.other	Digital rights	en
dc.subject.other	License choice algorithm	en
dc.subject.other	Observational transition systems	en
dc.subject.other	Rights expression language	en
dc.subject.other	Algorithms	en
dc.subject.other	Copyrights	en
dc.subject.other	Formal logic	en
dc.subject.other	Information services	en
dc.subject.other	Mathematical models	en
dc.subject.other	Specification languages	en
dc.subject.other	Specifications	en
dc.subject.other	Wireless networks	en
dc.title	Formal specification and verification of the OMA license choice algorithm in the OTS/CafeOBJ method	en
heal.type	conferenceItem	en
heal.publicationDate	2010	en
heal.abstract	OMA-Digital Rights Management System is a standard proposed by the Open Mobile Alliance (OMA) for protecting digital content distribution via mobile networks. To solve the decision problem, in the case that multiple licenses refer to the same content, OMA suggests a license choice algorithm. This algorithm ensures the fine grained consumption of contents. CafeOBJ is a new generation algebraic specification language. We apply the OTS/CafeOBJ method to formally model, specify and verify the above mentioned license choice algorithm. More specifically, we develop the mathematical model of the OMA decision algorithm as an OTS, a kind of transition system expressed in an equational CafeOBJ specification style. Finally, we verify that this algorithm fulfills the following safety property: Whenever a license is chosen for a given content, then the license is valid at that specific time.	en
heal.journalName	WINSYS 2010 - Proceedings of the International Conference on Wireless Information Networks and Systems	en
dc.identifier.spage	173	en
dc.identifier.epage	180	en