Paper 2006/113 Original: eprint.iacr.org/2006/113 ↗
A New Construction of Time Capsule Signature
Abstract
In this paper we introduce a new approach of constructing time capsule signature. Our new construction captures the basic requirements defined by dodis \emph{et al.}, and it is also very straightforward and flexible. The time capsule signature provides an elegant way to produce a ``future signature" that becomes valid from a specific future time $t$, when a trusted third party (called \textit{Time Server}) publishes some trapdoor information associated with the time $t$. It also has many other advantages. Our work includes a developed security model of time capsule signature, a novel way of construction based on the bipartite ring signature, which is proven secure in the random oracle model and a concrete realization of the scheme.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2006-04-01: last updated
- 2006-03-26: published
- Short URL
- https://ia.cr/2006/113
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2006/113,
author = {Miaomiao Zhang and Gongliang Chen and Jianhua Li and Licheng Wang and Haifeng Qian},
title = {A New Construction of Time Capsule Signature},
howpublished = {Cryptology {ePrint} Archive, Paper 2006/113},
year = {2006},
url = {https://eprint.iacr.org/2006/113}
}