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Title |
An Efficient and Secure Profile Matching Scheme for Encounter based Mobile Social Network |
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Author |
Fizza Abbas, Ubaidullah Rajput, Umair Ali Khan, Farwa Abbas |
| Citation |
Vol. 24 No. 12 pp. 188-194 |
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Abstract |
Mobile Social Network (MSN) is an emerging area in recent years where many users are enjoying the facilities of social network on their mobile devices. Encounter-based MSN is a type of MSN where users share a short encounter, exchange some encounter information, and communicate later with the help of the shared encounter information. Encounter-based MSN inherent most of the security and privacy issues associated with MSN. Profile matching is an important and vastly used application of MSN as well as encounter-based MSN. In profile matching, users need to share and match their private information (such as interests). A high similarity may lead to a friendship. The revelation of this private information to an attacker can pose significant threats to the users privacy. In encounter-based MSN, a significant issue is the secure and accurate exchange of encounter information that can be later used for verification of the encounter. This paper proposes a secure and privacy preserving profile matching mechanism for encounter-based MSN. We have proposed a secure encounter phase and a profile matching phase. During encounter phase, users share their identity along with their signed public key and encrypted interests. The public key is signed by a registration server. During the profile matching phase, users encrypted interests are matched, and the encrypted results are sent to respective users. The exchange of this information is in encrypted form and only legitimate user can decrypt it. To show the feasibility of the proposed scheme, the computational cost is calculated. In the end, it is observed that the proposed scheme is taking reasonable time to calculate the interests securely. Moreover, the comparison shows that proposed scheme also provides prevention from Sybil attacks, impersonation while keeping the privacy of the users intact. |
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Keywords |
MSN, Encounter-based MSN, Privacy, Profile matching. |
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