Insecurity of a relativistic quantum commitment scheme

Abstract

We propose a cheating strategy to a relativistic quantum commitment scheme (Nadeem, 2014) which was claimed to be unconditionally secure. It is shown that the sender Alice can cheat successfully with probability 100%, thus disproving the security claim.

Keywords

• Quantum bit commitment
• Relativistic bit commitment
• Quantum cryptography
• Quantum entanglement
• Quantum teleportation