MR-Chord: Improved Chord Lookup Performance in Structured Mobile P2P Networks

Woungang, Isaac; Tseng, Fan‐Hsun; Lin, Ya-Fen; Chou, Li-Der; Chao, Han‐Chieh; Obaidat, Mohammad S.

doi:10.1109/jsyst.2014.2306147

Cited by 35 publications

(12 citation statements)

References 10 publications

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“…This is, for example, shown by the following: a recent work that uses Chord in large scaled P2P networks in conjunction with a dynamic trust computing model [19], as well as recent studies on the further improvement of Chord inherent efficiency [20] and correctness [21], or on the joining time of Chord nodes through the usage of anchor peers in an educational scenario [22]. Further recent contributions have concerned the usage of Chord in mobile networks [23] and for location-based services [24]; therefore, Chord's security and reliability are still important aspects to be carefully assessed and studied. Some solutions for improving Chord's security are already present in the relevant literature, such as [25] where the authors deploy certificates and signatures.…”

Section: Background and Related Workmentioning

confidence: 98%

A Balanced Trust-Based Method to Counter Sybil and Spartacus Attacks in Chord

Pecori

Veltri

2018

Security and Communication Networks

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A Sybil attack is one of the main challenges to be addressed when securing peer-to-peer networks, especially those based on Distributed Hash Tables (DHTs). Tampering routing tables by means of multiple fake identities can make routing, storing, and retrieving operations significantly more difficult and time-consuming. Countermeasures based on trust and reputation have already proven to be effective in some contexts, but one variant of the Sybil attack, the Spartacus attack, is emerging as a new threat and its effects are even riskier and more difficult to stymie. In this paper, we first improve a well-known and deployed DHT (Chord) through a solution mixing trust with standard operations, for facing a Sybil attack affecting either routing or storage and retrieval operations. This is done by maintaining the least possible overhead for peers. Moreover, we extend the solution we propose in order for it to be resilient also against a Spartacus attack, both for an iterative and for a recursive lookup procedure. Finally, we validate our findings by showing that the proposed techniques outperform other trust-based solutions already known in the literature as well.

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Section: Background and Related Workmentioning

confidence: 98%

A Balanced Trust-Based Method to Counter Sybil and Spartacus Attacks in Chord

Pecori

Veltri

2018

Security and Communication Networks

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“…Random selection of neighbor peers is resulted in lack of conformity to the topology of infrastructure and also imposing traffic in physical network. In addition to this method, torrential publishing remained as an unsolved challenge in this protocol [18], [14].…”

Section: Related Workmentioning

confidence: 99%

IAMIN: An Infrastructure-aware Middleware for the Reconfiguration of Unstructured Peer-to-Peer Overlay Networks

Alizadeh¹,

Ghafouri²,

Sharifi³

2019

IJCNIS

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Peer to peer networks have become one of the most popular networking methods because of their flexibility and many use cases such as file sharing and distributed computations. Unstructured overlay peer to peer networks are one of key components of peer to peer systems that are considerable because of their low cost in network construction and maintenance. One of the main challenges in unstructured peer to peer overlay networks is the topology mismatch between overlay network and the underlying physical infrastructure. The root of this challenge is lack of awareness about peers in the network infrastructure during connection to and disconnection from overlay network, in addition to the neighbor selection mechanism in the overlay network. Different types of awareness of network infrastructure includes awareness of the location of internet service providers. Also awareness of proximity, geographical location and resources of peers. In this article we present a middleware which configures overlay network by using public measurements and the estimated delay among peers in order to have the most conformity with the topology of physical infrastructure. To evaluate the performance, our middleware is implemented on the top of Gnutella which is an unstructured overlay peer-to-peer network. Our simulations show that our middleware enhances the conformity of overlay network to the topology of physical network infrastructure. In addition, it improved the average throughput and the average delay.

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“…Consistent hashing has been well used for P2P communication based on DHT [11], chord [12], KAD [13], etc. In terms of nodes allocation in a cloud environment, especially when the load-balancing strategy is taken into account, consistent hashing shows its advantage on hitting probability with uniform distribution.…”

Section: Virtual Partition Consistent Hashingmentioning

confidence: 99%