## CryptoDB

### Gongliang Chen

#### Publications

Year
Venue
Title
2006
EPRINT
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.

#### Coauthors

Jianhua Li (1)
Haifeng Qian (1)
Licheng Wang (1)
Miaomiao Zhang (1)