Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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Subject: search.filters.subject.Mobile devices

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  • Conference Object
    Citation - WoS: 10
    Citation - Scopus: 16
    A Practical Nfc Relay Attack on Mobile Devices Using Card Emulation Mode
    (Institute of Electrical and Electronics Engineers Inc., 2015) Çavdar, Davut; Tomur, Emrah
    In this study, a practical card-emulated relay attack is implemented on Near Field Communication (NFC) equipped mobile devices. NFC is a promising communication technology which is also used in smart mobile devices. As an effective and flexible communication technology, NFC is frequently used in innovative solutions nowadays such as payments, access control etc. Because of the nature of these transactions, security is a critical issue that should be considered in system design and development phases. Although inherited from Radio Frequency Identification (RFID) technology, NFC security needs, requirements and solutions differ in terms of its usage areas and solutions. Based on these parameters, security precautions in communication layer of RFID technology do not prevent relay attacks occurred in the application layer NFC solutions. This study is conducted to prove relay attack practicability with using only mobile phones for relaying credentials instead of RFID based smart cards in an access control application. The Host Card Emulation (HCE) mode also eases relay attacks in NFC communication. The study explains the conceptual description of proposed relay attack, development and operating logic of mobile applications working based on card emulation mode and server software and also data communication basics between modules and web services descriptions.
  • Article
    Citation - WoS: 4
    Citation - Scopus: 9
    End-To Security Implementation for Mobile Devices Using Tls Protocol
    (Springer Verlag, 2006) Kayayurt, Barış; Tuğlular, Tuğkan
    End-to-end security has been an emerging need for mobile devices with the widespread use of personal digital assistants and mobile phones. Transport Layer Security Protocol (TLS) is an end-to-end security protocol that is commonly used on the Internet, together with its predecessor, SSL protocol. By implementing TLS protocol in the mobile world, the advantage of the proven security model of this protocol can be utilized. The main design goals of mobile end-to-end security protocol are maintainability and extensibility. Cryptographic operations are performed with a free library, Bouncy Castle Cryptography Package. The object oriented architecture of proposed end-to-end security protocol implementation makes the replacement of this library with another cryptography package easier. The implementation has been experimented with different cases, which represent use of different cryptographic algorithms.