Partially Collaborative Storage Codes in the Presence of an Eavesdropper
We consider the study of codes designed for distributed storage systems, whose maintenance design criterion is to reduce the repair bandwidth, in a generic setting where t failures, t ≥ 1, are repaired collaboratively, thus involving the participation of t storage nodes. Yet each of these t nodes is...
| Main Authors: | , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2016
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| Online Access: | https://hdl.handle.net/10356/103743 http://hdl.handle.net/10220/40655 http://www.inderscience.com.ezlibproxy1.ntu.edu.sg/info/inarticle.php?artid=76955 |
| _version_ | 1811686037413429248 |
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| author | Liu, Shiqiu Oggier, Frédérique |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Liu, Shiqiu Oggier, Frédérique |
| author_sort | Liu, Shiqiu |
| collection | NTU |
| description | We consider the study of codes designed for distributed storage systems, whose maintenance design criterion is to reduce the repair bandwidth, in a generic setting where t failures, t ≥ 1, are repaired collaboratively, thus involving the participation of t storage nodes. Yet each of these t nodes is actually actively exchanging data with only a subset formed by t − s of the t − 1 other nodes, for 1 ≤ s ≤ t, explaining the term “partially collaborative”. To understand the role of the different code parameters, namely the threshold t of failures, the degree s of collaboration, but also the repair bandwidth, we adopt the general scenario where an eavesdropper may spy on some storage nodes, and their communication links. By doing so, we recover previous results on partially collaborative codes, and discuss some aspects of cooperation and security in terms of their influence on the repair bandwidth in the presence of an eavesdropper. |
| first_indexed | 2024-10-01T04:54:03Z |
| format | Journal Article |
| id | ntu-10356/103743 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:54:03Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/1037432023-02-28T19:33:18Z Partially Collaborative Storage Codes in the Presence of an Eavesdropper Liu, Shiqiu Oggier, Frédérique School of Physical and Mathematical Sciences Mathematical Sciences We consider the study of codes designed for distributed storage systems, whose maintenance design criterion is to reduce the repair bandwidth, in a generic setting where t failures, t ≥ 1, are repaired collaboratively, thus involving the participation of t storage nodes. Yet each of these t nodes is actually actively exchanging data with only a subset formed by t − s of the t − 1 other nodes, for 1 ≤ s ≤ t, explaining the term “partially collaborative”. To understand the role of the different code parameters, namely the threshold t of failures, the degree s of collaboration, but also the repair bandwidth, we adopt the general scenario where an eavesdropper may spy on some storage nodes, and their communication links. By doing so, we recover previous results on partially collaborative codes, and discuss some aspects of cooperation and security in terms of their influence on the repair bandwidth in the presence of an eavesdropper. MOE (Min. of Education, S’pore) Accepted version 2016-06-09T06:15:05Z 2019-12-06T21:19:15Z 2016-06-09T06:15:05Z 2019-12-06T21:19:15Z 2015 2015 Journal Article Liu, S., & Oggier, F. (2016). Partially collaborative storage codes in the presence of an eavesdropper. International Journal of Information and Coding Theory, 3(3), 177-196. 1753-7703 https://hdl.handle.net/10356/103743 http://hdl.handle.net/10220/40655 http://www.inderscience.com.ezlibproxy1.ntu.edu.sg/info/inarticle.php?artid=76955 188562 en International Journal of Information and Coding Theory © 2015 Inderscience. This is the author created version of a work that has been peer reviewed and accepted for publication by International Journal of Information and Coding Theory, Inderscience. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://www.inderscience.com.ezlibproxy1.ntu.edu.sg/info/inarticle.php?artid=76955]. 23 p. application/pdf |
| spellingShingle | Mathematical Sciences Liu, Shiqiu Oggier, Frédérique Partially Collaborative Storage Codes in the Presence of an Eavesdropper |
| title | Partially Collaborative Storage Codes in the Presence of an Eavesdropper |
| title_full | Partially Collaborative Storage Codes in the Presence of an Eavesdropper |
| title_fullStr | Partially Collaborative Storage Codes in the Presence of an Eavesdropper |
| title_full_unstemmed | Partially Collaborative Storage Codes in the Presence of an Eavesdropper |
| title_short | Partially Collaborative Storage Codes in the Presence of an Eavesdropper |
| title_sort | partially collaborative storage codes in the presence of an eavesdropper |
| topic | Mathematical Sciences |
| url | https://hdl.handle.net/10356/103743 http://hdl.handle.net/10220/40655 http://www.inderscience.com.ezlibproxy1.ntu.edu.sg/info/inarticle.php?artid=76955 |
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