Security and efficiency trade-offs for cloud computing and storage

Jian Li, Kai Zhou, Jian Ren

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)


Cloud computing provides centralized data storage and online computing. For centralized data storage, to address both security and availability issue, distributed storage is an appealing option in that it can ensure file security without requiring data encryption. Instead of storing a file and its replications on multiple servers, we can break the file into components and store the components on multiple servers. In this paper, we develop the minimum storage regeneration (MSR) point based distributed storage schemes that can achieve optimal storage efficiency and storage capacity. Moreover, our scheme can detect and correct malicious nodes with much higher error correction efficiency. For online computing, we investigate outsourcing of general computational problems and propose efficient Cost-Aware Secure Outsourcing (CASO) schemes for problem transformation and outsourcing so that the cloud is unable to learn any key information from the transformed problem. We also propose a verification scheme to ensure that the end-users will always receive a valid solution from the cloud. Our extensive complexity and security analysis show that our proposed Cost-Aware Secure Outsourcing (CASO) scheme is both practical and effective.

Original languageEnglish
Title of host publicationProceedings - 2015 Resilience Week, RSW 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781479985944
Publication statusPublished - 1 Oct 2015
Externally publishedYes
EventResilience Week, RSW 2015 - Philadelphia, United States
Duration: 18 Aug 201520 Aug 2015

Publication series

NameProceedings - 2015 Resilience Week, RSW 2015


ConferenceResilience Week, RSW 2015
Country/TerritoryUnited States


  • Cloud computing
  • computation outsourcing
  • costaware
  • distributed storage
  • efficiency
  • optimal scheme design
  • security

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Energy Engineering and Power Technology


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