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Sökning: WFRF:(Fatemi Mitra)

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1.
  • Fatemi, Mitra, et al. (författare)
  • Anonymous Roaming in UMTS Mobile Networks
  • 2010
  • Ingår i: IET information security. - : Institution of Engineering and Technology (IET). - 1751-8709. ; 4:2, s. 93-103
  • Tidskriftsartikel (refereegranskat)abstract
    • A secure roaming protocol for mobile networks is proposed. Roaming has been analysed in some schemes from the security point of view; however, there are vulnerabilities in most of them and so the claimed security level is not achieved. The scheme offered by Wan et al. recently is based on hierarchical identity-based encryption, in which the roaming user and the foreign network mutually authenticate each other without the help of the home network. Although the idea behind this proposal is interesting, it contradicts technical considerations such as routing and billing. The proposed protocol makes use of similar functions used in Wan et al.'s scheme but contributes a distinguished structure that overcomes the previous shortcomings and achieves a higher possible level of security in mobile roaming as well as enhancing the security of the key issuing procedure.
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2.
  • Fatemi, Mitra, et al. (författare)
  • Improved EndSec: A Practical Protocol for Securing Core Network Signaling in UMTS
  • 2009
  • Konferensbidrag (refereegranskat)abstract
    • The offered services in the third generation of mobile communication (UMTS) have necessitated the existence of reliable network security. The original core network security protocol called MapSec only provides the security for Map signaling and is unable to assure the end-to-end security. One of the proposed solutions to these shortcomings is the EndSec protocol which is computationally complex and increases the significantly increses the signaling load on the link. We also show that EndSec is susceptible against a kind of active attack. In this paper, in addition to explaining the EndSec pitfalls, we present an enhancement using bilinear maps which resolves all the mentioned drawbacks.
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  • Resultat 1-2 av 2
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refereegranskat (2)
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Salimi, Somayeh (2)
Salahi, Ahmad (2)
Fatemi, Mitra (2)
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Kungliga Tekniska Högskolan (2)
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Engelska (2)
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