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Blockchain-based publishing layer for the Keyless Signing Infrastructure

Jämthagen, Christopher LU and Hell, Martin LU (2016) 13th IEEE International Conference on Advanced and Trusted Computing In The 13th IEEE International Conference on Advanced and Trusted Computing
Abstract
A Keyless Signing Infrastructure (KSI) provides users with a means to timestamp documents on a per-second basis. The KSI consists of a global infrastructure with several server layers and by using Merkle hash trees, the root hash can be used to verify the integrity and timestamp of a document. Regular publication of root hashes, e.g., once per month, allows a document to be verified without support of the servers, but the previously proposed publication channels have several limitations. In this paper we address these limitations and show how a blockchain can be used as an additional publication layer on top of a KSI. Using the scripting capabilities in transactions, new features are introduced to the publication of root hashes. This... (More)
A Keyless Signing Infrastructure (KSI) provides users with a means to timestamp documents on a per-second basis. The KSI consists of a global infrastructure with several server layers and by using Merkle hash trees, the root hash can be used to verify the integrity and timestamp of a document. Regular publication of root hashes, e.g., once per month, allows a document to be verified without support of the servers, but the previously proposed publication channels have several limitations. In this paper we address these limitations and show how a blockchain can be used as an additional publication layer on top of a KSI. Using the scripting capabilities in transactions, new features are introduced to the publication of root hashes. This includes faster publication, proof of origin for the publisher and the possibility for third parties to explicitly verify root hashes before they are published. These improvements will allow the verification of documents to be simpler, more flexible and more secure. (Less)
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The 13th IEEE International Conference on Advanced and Trusted Computing
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
13th IEEE International Conference on Advanced and Trusted Computing
language
English
LU publication?
yes
id
915d5fb2-d625-43c9-8e8f-0dec9cb5b34b
date added to LUP
2016-09-19 18:35:00
date last changed
2016-09-21 10:22:09
@misc{915d5fb2-d625-43c9-8e8f-0dec9cb5b34b,
  abstract     = {A Keyless Signing Infrastructure (KSI) provides users with a means to timestamp documents on a per-second basis. The KSI consists of a global infrastructure with several server layers and by using Merkle hash trees, the root hash can be used to verify the integrity and timestamp of a document. Regular publication of root hashes, e.g., once per month, allows a document to be verified without support of the servers, but the previously proposed publication channels have several limitations. In this paper we address these limitations and show how a blockchain can be used as an additional publication layer on top of a KSI. Using the scripting capabilities in transactions, new features are introduced to the publication of root hashes. This includes faster publication, proof of origin for the publisher and the possibility for third parties to explicitly verify root hashes before they are published. These improvements will allow the verification of documents to be simpler, more flexible and more secure.},
  author       = {Jämthagen, Christopher and Hell, Martin},
  language     = {eng},
  publisher    = {ARRAY(0x948f5a0)},
  series       = {The 13th IEEE International Conference on Advanced and Trusted Computing},
  title        = {Blockchain-based publishing layer for the Keyless Signing Infrastructure},
  year         = {2016},
}