Paper 2018/1251
Accountable Tracing Signatures from Lattices
San Ling, Khoa Nguyen, Huaxiong Wang, and Yanhong Xu
Abstract
Group signatures allow users of a group to sign messages anonymously in the name of the group, while incorporating a tracing mechanism to revoke anonymity and identify the signer of any message. Since its introduction by Chaum and van Heyst (EUROCRYPT 1991), numerous proposals have been put forward, yielding various improvements on security, efficiency and functionality. However, a drawback of traditional group signatures is that the opening authority is given too much power, i.e., he can indiscriminately revoke anonymity and there is no mechanism to keep him accountable.
To overcome this problem, Kohlweiss and Miers (PoPET 2015) introduced the notion of accountable tracing signatures (
Metadata
- Available format(s)
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Major revision. CT-RSA 2019
- Contact author(s)
- xu0014ng @ ntu edu sg
- History
- 2019-01-03: received
- Short URL
- https://ia.cr/2018/1251
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2018/1251, author = {San Ling and Khoa Nguyen and Huaxiong Wang and Yanhong Xu}, title = {Accountable Tracing Signatures from Lattices}, howpublished = {Cryptology {ePrint} Archive, Paper 2018/1251}, year = {2018}, url = {https://eprint.iacr.org/2018/1251} }