4 papers · 1 filter
Commitment Capacity of Discrete Memoryless Channels
Andreas Winter, Anderson C. A. Nascimento, Hideki Imai
In extension of the bit commitment task and following work initiated by Crepeau and Kilian, we introduce and solve the problem of characterising the optimal rate at which a discret…
Pretty-Simple Password-Authenticated Key-Exchange Protocol
Kazukuni Kobara, Hideki Imai
We propose pretty simple password-authenticated key-exchange protocol which is based on the difficulty of solving DDH problem. It has the following advantages: (1) Both and $…
More Robust Multiparty Protocols with Oblivious Transfer
J. Mueller-Quade, H. Imai
With oblivious transfer multiparty protocols become possible even in the presence of a faulty majority. But all known protocols can be aborted by just one disruptor. This paper pre…
Anonymous Oblivious Transfer
J. Mueller-Quade, H. Imai
In this short note we want to introduce {\em anonymous oblivious transfer} a new cryptographic primitive which can be proven to be strictly more powerful than oblivious transfer. W…