Amongst provably secure signature schemes, two distinct classes are of particular interest: the ones with tight reduction (e.g., RSA-PSS), and those which support the use of coupon...
We first study the problem of doing Verifiable Secret Sharing (VSS) information theoretically secure for a general access structure. We do it in the model where private channels b...
In threshold ring signature schemes, any group of t entities spontaneously conscript arbitrarily n - t entities to generate a publicly verifiable t-out-of-n signature on behalf of ...
Sherman S. M. Chow, Lucas Chi Kwong Hui, Siu-Ming ...
We consider the round complexity of a basic cryptographic task: verifiable secret sharing (VSS). This well-studied primitive provides a good "test case" for our understan...