Quantum Bit Commitment Combinbing with BB84 Protocol
Linxi Zhang, Changhua Zhu, Nan Zhao, Changxing Pei
TL;DR
This paper introduces a novel quantum bit commitment scheme that integrates with the BB84 protocol, enabling secure commitment without external key distribution and utilizing generated keys for encryption and redundancy.
Contribution
It presents a new quantum bit commitment method combining with BB84, eliminating the need for separate key distribution and enhancing encryption capabilities.
Findings
Achieves bit commitment with probability p using waiting time in BB84
Encrypts measurement outcomes with one-time pad from BB84-generated keys
Provides redundant secret keys for encrypting additional information
Abstract
We proposed a new quantum bit commitment scheme in which secret key need not to be provided by other quantum key distribution system. We can get the bit commitment with probability p by adding a waiting time in a frame during operating the BB84 protocol. Then the measurement outcomes can be encrypted by one-time pad with the key generated by BB84 protocol. We can also obtain the redundant secret keys to encrypt other information in this quantum key distribution system.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum Computing Algorithms and Architecture