Paper 2013/834 Original: eprint.iacr.org/2013/834 ↗

Keyless Signatures' Infrastructure: How to Build Global Distributed Hash-Trees

Ahto Buldas
Andres Kroonmaa
Risto Laanoja
Abstract

Keyless Signatures Infrastructure (KSI) is a globally distributed system for providing time-stamping and server-supported digital signature services. Global per-second hash trees are created and their root hash values published. We discuss some service quality issues that arise in practical implementation of the service and present solutions for avoiding single points of failure and guaranteeing a service with reasonable and stable delay. Guardtime AS has been operating a KSI Infrastructure for 5 years. We summarize how the KSI Infrastructure is built, and the lessons learned during the operational period of the service.

Metadata
Available format(s)
PDF
Category
Applications
Publication info
Preprint.
History
2013-12-16: last updated
2013-12-16: published
Short URL
https://ia.cr/2013/834
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2013/834,
      author = {Ahto Buldas and Andres Kroonmaa and Risto Laanoja},
      title = {Keyless Signatures' Infrastructure: How to Build Global Distributed Hash-Trees},
      howpublished = {Cryptology {ePrint} Archive, Paper 2013/834},
      year = {2013},
      url = {https://eprint.iacr.org/2013/834}
}
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