Unconditionally Secure Bit Commitment Is Simply Possible
Arindam Mitra · arXiv (Cornell University) · 2000
Mayers, Lo and Chau proved unconditionally secure quantum bit commitment is impossible. It is shown that their proof is valid only for conventional quantum bit commitment protocols, in general it does not hold good. Unconditionally secure entangled and unentangled based (two steps and multi-steps) quantum bit commitment protocols are presented. Unconditional security covers unknown attacks and attacks arising due to noise. For a single isolated bit, the probability of successful cheating is sharply zero.