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A Defense Technique against ARP Spoofing Attacks using a Keystone Authentication Table in the OpenStack Cloud Environment

Hyo Sung Kang, Choong Seon Hong

http://doi.org/10.5626/JOK.2018.45.8.755

Recently cloud service has been introduced to enable many enterprises to achieve their purposes such as improving efficiency, reducing costs, and revolutionizing business processes. However spoofing or poison attacks on VM inside the cloud deteriorate the cloud system and those attacks can be a stumbling block for spreading cloud services. To solve such problems, much research has been done, but it all seems to be impractical and limited in terms of finding techniques for detecting attacks and applying to large scale of networks. In this paper, we propose a way to prevent loss of VM resources because of such attacks on the OpenStack environment by using a reliable ARP table in a cloud computing environment and showing that the proposed mechanism is an effective way to defend against the ARP spoofing attacks.

Encrypted Data Deduplication Using Key Issuing Server

Hyun-il Kim, Cheolhee Park, Dowon Hong, Changho Seo

http://doi.org/

Data deduplication is an important technique for cloud storage savings. These techniques are especially important for encrypted data because data deduplication over plaintext is basically vulnerable for data confidentiality. We examined encrypted data deduplication with the aid of a key issuing server and compared Convergent Encryption with a technique created by M.Bellare et al. In addition, we implemented this technique over not only Dropbox but also an open cloud storage service, Openstack Swift. We measured the performance for this technique over Dropbox and Openstack Swift. According to our results, we verified that the encrypted data deduplication technique with the aid of a key issuing server is a feasible and versatile method.


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