Reinforcing Protection Against Chosen-Plaintext Attack Using Ciphertext Fragmentation in Multi-cloud Environments

Katarzyna Kapusta, Han Qiu, Gerard Memmi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The Secure Fragmentation and Dispersal (SFD) scheme fragments and disperses encrypted data over at least two storage clouds. It increases the space complexity of a bruteforce search that has to be performed by an attacker unable to compromise the totality of the storage sites. The scheme is particularly efficient against an attacker unaware of the stored plaintext content. In this paper, we present a modification of the scheme addressing the problem of securing outsourced data against an attacker performing a chosen-plaintext attack.

Original languageEnglish
Title of host publicationProceedings - 6th IEEE International Conference on Cyber Security and Cloud Computing, CSCloud 2019 and 5th IEEE International Conference on Edge Computing and Scalable Cloud, EdgeCom 2019
EditorsMeikang Qiu
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages7-9
Number of pages3
ISBN (Electronic)9781728116600
DOIs
Publication statusPublished - 1 Jun 2019
Externally publishedYes
Event6th IEEE International Conference on Cyber Security and Cloud Computing and 5th IEEE International Conference on Edge Computing and Scalable Cloud, CSCloud/EdgeCom 2019 - Paris, France
Duration: 21 Jun 201923 Jun 2019

Publication series

NameProceedings - 6th IEEE International Conference on Cyber Security and Cloud Computing, CSCloud 2019 and 5th IEEE International Conference on Edge Computing and Scalable Cloud, EdgeCom 2019

Conference

Conference6th IEEE International Conference on Cyber Security and Cloud Computing and 5th IEEE International Conference on Edge Computing and Scalable Cloud, CSCloud/EdgeCom 2019
Country/TerritoryFrance
CityParis
Period21/06/1923/06/19

Keywords

  • All-Or-Nothing
  • Data fragmentation
  • Multi-Cloud
  • data dispersal
  • data protection
  • key exposure

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