Using the OTS/CafeOBJ method to formally specify and verify the Open Mobile Alliance license choice algorithm

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	2014-03-01T02:54:04Z
dc.date.available	2014-03-01T02:54:04Z
dc.date.issued	2012	en
dc.identifier.issn	18650929	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36569
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	Algebraic specification languages	en
dc.subject.other	CafeOBJ	en
dc.subject.other	Decision problems	en
dc.subject.other	Digital contents	en
dc.subject.other	Digital rights	en
dc.subject.other	Digital rights management system	en
dc.subject.other	Equational specifications	en
dc.subject.other	Expression languages	en
dc.subject.other	Observational transition systems	en
dc.subject.other	OMA DRM	en
dc.subject.other	Open mobile alliances	en
dc.subject.other	Safety property	en
dc.subject.other	Specific time	en
dc.subject.other	Transition system	en
dc.subject.other	Algorithms	en
dc.subject.other	Condition monitoring	en
dc.subject.other	Electronic commerce	en
dc.subject.other	Specification languages	en
dc.subject.other	Specifications	en
dc.subject.other	Copyrights	en
dc.title	Using the OTS/CafeOBJ method to formally specify and verify the Open Mobile Alliance license choice algorithm	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1007/978-3-642-25206-8_28	en
heal.identifier.secondary	http://dx.doi.org/10.1007/978-3-642-25206-8_28	en
heal.publicationDate	2012	en
heal.abstract	The protection of the distribution of digital contents via mobile networks has been standardized by Open Mobile Alliance (OMA) with the proposition of the OMA Digital Rights Management System. When multiple licenses refer to the same content a decision problem rises as to what license one should use. To solve this decision problem, as part of the OMA DRM system, a License Choice Algorithm is proposed. Here we apply the OTS/CafeOBJ method to specify the above algorithm and verify that it behaves in the expected manner. More specifically we present an equational specification of the License Choice Algorithm as an Observation Transition System (OTS) written in CafeOBJ specification style. CafeOBJ is a powerful new generation algebraic specification language. Finally we verify the following safety property holds: Whenever a license is chosen for a specific content then that license is valid at that specific time, and analyze parts of this verification. © 2012 Springer-Verlag.	en
heal.journalName	Communications in Computer and Information Science	en
dc.identifier.doi	10.1007/978-3-642-25206-8_28	en
dc.identifier.volume	222 CCIS	en
dc.identifier.spage	424	en
dc.identifier.epage	438	en