Paper 2022/1138 Original: eprint.iacr.org/2022/1138 ↗

Designated-Verifier Linkable Ring Signatures with unconditional anonymity

Danai Balla
Pourandokht Behrouz
Panagiotis Grontas
Aris Pagourtzis
Marianna Spyrakou
Giannis Vrettos
Abstract

We propose Designated-Verifier Linkable Ring Signatures with unconditional anonymity, a cryptographic primitive that protects the privacy of signers in two ways: Firstly, it allows them to hide inside a ring (i.e. an anonymity set) they can create by collecting a set of public keys all of which must be used for verification. Secondly, it allows a designated entity to simulate signatures thus making it difficult for an adversary to deduce their identity from the content of the exchanged messages. Our scheme differs from similar proposals since the anonymity guarantees are unconditional.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2022-08-31: last updated
2022-08-31: published
Short URL
https://ia.cr/2022/1138
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2022/1138,
      author = {Danai Balla and Pourandokht Behrouz and Panagiotis Grontas and Aris Pagourtzis and Marianna Spyrakou and Giannis Vrettos},
      title = {Designated-Verifier Linkable Ring Signatures with unconditional anonymity},
      howpublished = {Cryptology {ePrint} Archive, Paper 2022/1138},
      year = {2022},
      url = {https://eprint.iacr.org/2022/1138}
}
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