Master Degree / Yüksek Lisans Tezleri
Permanent URI for this collectionhttps://hdl.handle.net/11147/3008
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Master Thesis Development of a Web Services Security Archhitecture Based on .net Framework(Izmir Institute of Technology, 2008) Bacı, Recep; Tuğlular, TuğkanService Oriented Architecture (SOA) is an architectural style which allows interaction of diverse applications regardless of their platform, implementation languages and locations by utilizing generic and reliable services that can be used as application building block. SOA includes methodologies and strategies to follow in order to develop sophisticated applications and information systems. SOA is different from the traditional architectures as it has its own unique architectural characteristics and regulations, which needs to be analyzed and clarified so as to apply the information that should be included in the architectural model of SOA correctly to service based application development. The newest technology for SOA is web service technology which gains more and more importance as a technology to develop distributed serviceoriented applications. Web services are an emergent paradigm for implementing business collaborations over the web. Each service has an interface that is accessible through standard protocols and that describes the interaction capabilities of the service.This master's thesis primarily examines the web services concept of the .NET platform having the emphasis on secure communication. A case study demonstrates securing the communication between a web service and its clients through RIJNDAEL, 3DES and RSA algorithms implemented on code based structure which uses the identity token, provided from identity web service, to validate the identity of the client and the status token provided from status web service in order to validate the status of the client.A number of tests are performed using different cryptographic algorithms and network settings for the communication in order to obtain operational values of these algorithms.Master Thesis Web Services Security: a Proposed Architecture for Interdomain Trust Relationship(Izmir Institute of Technology, 2006) Hendrickson, Selim L.Y.; Tuğlular, TuğkanWeb services technology is vulnerable to security threats similar to other technologies which are based on communication over internet. Some applications working over internet typically require strong authentication. The security requirements of a scenario may involve interdomain authentication mechanisms. These domains may be operating using different technologies. In order to enable such scenarios, we leverage existing approaches with emerging standards and propose an architecture. Our proposed architecture takes advantage of XML technology and emerging SAML standard. The most important aim of the proposed architecture is platform indepedence. Our proposed architecture includes a Security Token Service and a protocol for communication between token requesters, consumers and issuers. Although, the exact flow of execution depends on the scenario, we believe our approaches can be used as common ground for implementation.