Group Signatures with Designated Traceability over Openers' Attributes

Hiroaki Anada; Masayuki Fukumitsu; Shingo Hasegawa

Paper 2022/962 Original: eprint.iacr.org/2022/962 ↗

Group Signatures with Designated Traceability over Openers' Attributes

Hiroaki Anada

Masayuki Fukumitsu

Shingo Hasegawa

Abstract

We propose a group signature scheme with a function of designated traceability; each opener has attributes, and a signer of a group signature can be traced by only the openers whose attributes satisfy the boolean formula designated by the signer. We describe syntax and security definitions of the scheme. Then we give a generic construction of the scheme by employing a ciphertext-policy attribute-based encryption scheme.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint.
History: 2025-07-15: last updated; 2022-07-26: published
Short URL: https://ia.cr/2022/962
License: https://creativecommons.org/publicdomain/zero/1.0/

BibTeX

@misc{cryptoeprint:2022/962,
      author = {Hiroaki Anada and Masayuki Fukumitsu and Shingo Hasegawa},
      title = {Group Signatures with Designated Traceability over Openers' Attributes},
      howpublished = {Cryptology {ePrint} Archive, Paper 2022/962},
      year = {2022},
      url = {https://eprint.iacr.org/2022/962}
}