Paper 2022/241
Coalition and Threshold Hash-Based Signatures
Abstract
In a distributed digital signature scheme, coalitions of “trustees” can jointly create a valid signature. We propose a distributed version of stateful hash-based signature schemes like those defined in XMSS (defined in RFC8391) and LMS (defined in RFC8554). Our schemes allow a dealer, who has generated the secret keys and could create valid signatures, to delegate the ability to sign coalitions of trustees. Our schemes support k-of-n threshold signatures, where every k-subset from a total of
Metadata
- Available format(s)
-
PDF
- Category
- Public-key cryptography
- Publication info
- Preprint.
- Keywords
- threshold cryptography hash functions hash-based signatures
- Contact author(s)
-
stefan lucks @ uni-weimar de
nathalie lang @ uni-weimar de - History
- 2022-07-13: revised
- 2022-02-25: received
- See all versions
- Short URL
- https://ia.cr/2022/241
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2022/241, author = {John Kelsey and Stefan Lucks and Nathalie Lang}, title = {Coalition and Threshold Hash-Based Signatures}, howpublished = {Cryptology {ePrint} Archive, Paper 2022/241}, year = {2022}, url = {https://eprint.iacr.org/2022/241} }