Quantum secret sharing method capable of resisting intercept-resend attack, man-in-the-middle attack and entanglement attack

Abstract

The invention belongs to the technical field of information security, and discloses a quantum secret sharing method capable of resisting an intercept-resend attack, a man-in-the-middle attack and an entanglement attack. A secret sharing protocol is designed by utilizing the special characteristic that a five-particle GHZ state has the correlation in an X group. According to the protocol, secret information is split into four parts, the four parts are delivered to four participators to be cared, and the secret information can be decrypted only when the four participators all take participate in. After analysis, the feasibility of the protocol is proved. Security analysis shows that the protocol can resist the intercept-resend attack, the man-in-the-middle attack and the entanglement attack. And meanwhile the trust problem of the participators is analyzed, and it shows that the protocol is secure.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to a quantum secret sharing method capable of resisting interception and retransmission, man-in-the-middle and entanglement attacks. Background technique [0002] In some occasions, such as the launch of missiles, the effectiveness of wills, and the need to use funds in a joint account in a bank, in order to strengthen the security of some information or reduce risks, multiple people will be asked to jointly hold confidentiality information. Based on this scenario, people have designed a secret protection method called secret sharing. In the secret sharing agreement, the secret information is divided into several parts according to certain rules, and each part is allocated to different participants for safekeeping. When the secret information needs to be used, it must be shared by the holder of the confidential information. Get secret information. In 1998...

AI Technical Summary

Problems solved by technology

However, the above quantum secret sharing schemes are all designed using quantum entanglement based on the Bell state, or the result of deforming the entanglement of two particles, and the entanglement relationship is only used in the secret sharing of two users

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