A brief review on quantum bit commitment
Álvaro J. Almeida, Ricardo Loura, Nikola Paunković, Nuno A. Silva, Nelson Jesus Muga, Paulo Mateus, Paulo André, Armando N. Pinto · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2014
In classical cryptography, the bit commitment scheme is one of the most important primitives. We review the state of the art of bit commitment protocols, emphasizing its main achievements and applications. Next, we present a practical quantum bit commitment scheme, whose security relies on current technological limitations, such as the lack of long-term stable quantum memories. We demonstrate the feasibility of our practical quantum bit commitment protocol and that it can be securely implemented with nowadays technology.