Paper 2017/1155 Original: eprint.iacr.org/2017/1155 ↗

A Survey and Refinement of Repairable Threshold Schemes

Thalia M. Laing
Douglas R. Stinson
Abstract

We consider repairable threshold schemes (RTSs), which are threshold schemes that enable a player to securely reconstruct a lost share with help from their peers. We summarise and, where possible, refine existing RTSs and introduce a new parameter for analysis, called the repair metric. We then explore using secure regenerating codes as RTSs and find them to be immediately applicable. We compare all RTS constructions considered and conclude by presenting the best candidate solutions for when either communication complexity or information rate is prioritised.

Metadata
Available format(s)
PDF
Category
Foundations
Publication info
Preprint.
History
2017-11-28: last updated
2017-11-28: published
Short URL
https://ia.cr/2017/1155
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2017/1155,
      author = {Thalia M.  Laing and Douglas R.  Stinson},
      title = {A Survey and Refinement of Repairable Threshold Schemes},
      howpublished = {Cryptology {ePrint} Archive, Paper 2017/1155},
      year = {2017},
      url = {https://eprint.iacr.org/2017/1155}
}
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