Title: Double-Authentication-Preventing Signatures: when you can cheat,
but better not to!
Abstract: In this talk we will introduce a cryptographic primitive known
as Double Authentication Preventing Signature (DAPS).
In a traditional signature scheme, the signer can sign whatever they
want (as far as the message is in the right message space), this can
be dramatically dangerous for some applications.
In this talk we will review these sort of applications and show how DAPS
can be useful there. The main idea of DAPS is that if the signer does not
follow the rules of the protocol, its signing key would be revealed.
The protocol is designed in a way to make the signing key precious,
such that the signer will not risk losing it.
Algorithmic Number Theory, Coding and Cryptography
