Sybil Attacks Against Mobile Users: Friends and Foes to the Rescue.
Presented at: Conference on IEEE INFOCOM, San Diego, CA.
Collaborative applications for co-located mobile users can be severely disrupted by a sybil attack to the point of being unusable. Existing decentralized defences have largely been designed for peer-to-peer networks but not for mobile networks. That is why we propose a new decentralized defence for portable devices and call it MobID. The idea is that a device manages two small networks in which it stores information about the devices it meets: its network of friends contains honest devices, and its network of foes contains suspicious devices. By reasoning on these two networks, the device is then able to determine whether an unknown individual is carrying out a sybil attack or not. We evaluate the extent to which MobID reduces the number of interactions with sybil attackers and consequently enables collaborative applications. We do so using real mobility and social network data. We also assess computational and communication costs of MobID on mobile phones.
|Type:||Conference item (UNSPECIFIED)|
|Title:||Sybil Attacks Against Mobile Users: Friends and Foes to the Rescue|
|Event:||Conference on IEEE INFOCOM|
|Location:||San Diego, CA|
|Dates:||15 March 2010 - 19 March 2010|
|UCL classification:||UCL > School of BEAMS > Faculty of Engineering Science
UCL > School of BEAMS > Faculty of Engineering Science > Computer Science
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