Data backup security in cloud storage system

Authors

  • Борис Геннадьевич Атаян Национальный политехнический университет Армении
  • Татевик Араевна Багдасарян Национальный политехнический университет Армении

DOI:

https://doi.org/10.18372/2225-5036.22.10703

Keywords:

backup, cloud system, backup security, key sharing, Shamir scheme, secure update, validity check

Abstract

Cloud backup system is proposed, which provides means for effective creation, secure storage and restore of backups in
Cloud. For data archiving new efficient SGBP file format is being used in the system, which is based on DEFLATE compression
algorithm. Proposed format provides means for fast archive creation, which can contain significant amounts of data. Modern
approaches of backup archive protection are described in the paper. Also the SGBP format is compared to heavily used ZIP format
(both ZIP32 and ZIP64). SGBP backup archives are protected using symmetric encryption AES algorithm. Because in case of loss,
distortion or leak of the encryption key backup archive will become inaccessible, there is no doubt that the SGBP encryption keys need
special protection and management. The cryptographic keys of SGBP backups are protected using distributed cloud storage system,
which is based on Shamir’s threshold secret sharing scheme. After secret sharing all individual secret shares are distributed and
saved to different cloud storage services (e.g. Dropbox, GoogleDrive, SkyDrive etc.). Modules for key share validity check and share
update without key reconstruction are included in the system.

Author Biographies

Борис Геннадьевич Атаян, Национальный политехнический университет Армении

Год и место рождения: 1992 год, Ереван, Армения.
Образование: Национальный политехнический университет Армении, 2015 г.
Должность: аспирант 1 года.
Научный интерес: информационная безопасность, облачные системы, криптография, стеганография.
Публикации: около 10 публикаций по теме облачных систем и информационной безопасности.

Татевик Араевна Багдасарян, Национальный политехнический университет Армении

Год и место рождения: 1990 год, Ереван, Армения.
Образование: Национальный Политехнический Университет Армении, 2013 г.
Должность: аспирант 3 года.
Научный интерес: информационная безопасность, системы распределения информации, пороговые схемы, криптография, стеганография, облачные системы.
Публикации: более 10 публикаций по теме пороговых схем, стеганографии и криптографии.

References

Big Data in Official Statistics Vulnerabilities - [Electronic resource] / Mountain View, 2016 - Access mode: World Wide Web. – URL: http://www1.unece.org/stat/platform/display/bigdata/Big+Data+in+Official+Statistics.

ZIP File Format Specification, ver. 6.3.4. - Access mode: World Wide Web. – URL: https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT.

Schneier B. Applied Cryptography – 1994. – Р. 34.

Shamir A. How to Share a Secret, Communications of the ACM. – Vol. 22, Issue 11, 1979. – P. 612-613.

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Published

2016-07-06

How to Cite

Атаян, Б. Г., & Багдасарян, Т. А. (2016). Data backup security in cloud storage system. Ukrainian Scientific Journal of Information Security, 22(2), 119–122. https://doi.org/10.18372/2225-5036.22.10703

Issue

Vol. 22 No. 2 (2016)

Section

Network & Internet Security

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