Paper 2023/766
Lattice-based Commit-Transferrable Signatures and Applications to Anonymous Credentials
Abstract
Anonymous Credentials are an important tool to protect user's privacy for proving possession of certain credentials.
Although various efficient constructions have been proposed based on pre-quantum assumptions, there have been limited accomplishments in the post-quantum and especially practical settings. This research aims to derive new methods that enhance the current state of the art.
To achieve this, we make the following contributions.
By distilling prior design insights, we propose a new primitive to instantiate \emph{signature with protocols}, called commit-transferrable signature (\CTS). When combined with a multi-theorem straight-line extractable non-interactive zero-knowledge proof of knowledge (\NIZKPoK),
Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Preprint.
- Keywords
- Anonymous CredentialsCommit-Transferrable SignatureLattice-Based CryptographyPost-Quantum Security
- Contact author(s)
-
laiqq @ snnu edu cn
chongshenchen @ snnu edu cn
feng-hao liu @ wsu edu
anna @ cs brown edu
wzdstill @ sjtu edu cn - History
- 2023-10-10: revised
- 2023-05-26: received
- See all versions
- Short URL
- https://ia.cr/2023/766
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2023/766, author = {Qiqi Lai and Chongshen Chen and Feng-Hao Liu and Anna Lysyanskaya and Zhedong Wang}, title = {Lattice-based Commit-Transferrable Signatures and Applications to Anonymous Credentials}, howpublished = {Cryptology {ePrint} Archive, Paper 2023/766}, year = {2023}, url = {https://eprint.iacr.org/2023/766} }