Exploring Signature Schemes with Subliminal Channel
Fangguo Zhang, Byoungcheon Lee, Kwangjo Kim · 2003
The subliminal channel in a cryptographic protocol such as an authentication system or a signature scheme provides an additional channel from the sender to an authorized receiver and can't be read by any unauthorized receiver. In this paper, we firstly show that Hess's ID-Based signature scheme in SAC'02 can provide digital signature with the broadband and narrowband subliminal channels.