Paper 2021/988

Concurrent Signatures from a Variety of Keys

George Teseleanu

Abstract

Concurrent signatures allow two entities to produce two ambiguous signatures that become binding once an extra piece of information (called the keystone) is released. Such a signature is developed by Chen \emph{et al.}, but it restricts signers to using the same public parameters. We describe and analyse a new concurrent signature that allows users to sign documents even if they use different underlying hard problems when generating their public parameters.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Published elsewhere. INSCRYPT 2021
Keywords
concurent signaturecontract signingdigital signature
Contact author(s)
george teseleanu @ yahoo com
History
2022-03-15: revised
2021-07-28: received
See all versions
Short URL
https://ia.cr/2021/988
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2021/988,
      author = {George Teseleanu},
      title = {Concurrent Signatures from a Variety of Keys},
      howpublished = {Cryptology {ePrint} Archive, Paper 2021/988},
      year = {2021},
      url = {https://eprint.iacr.org/2021/988}
}
Note: In order to protect the privacy of readers, eprint.iacr.org does not use cookies or embedded third party content.