Practical Information-theoretic Commitment
Matthieu R. Bloch, João Barros, S.W. McLaughlin
Abstract
We consider the construction of practical commitment schemes for both discrete memoryless and Gaussian channels.For this purpose, we introduce a new proof of the achievability of commitment rates that emphasizes the connection with secret key agreement.By highlighting the fact that the concealing and binding properties of a commitment protocol can be enforced separately, this proof is shown to provide useful guidelines for the construction of practical schemes.