Electronic transaction method, device, system and medium
An electronic transaction and transaction technology, applied in the fields of equipment, electronic transaction methods, systems and media, can solve the problem of difficulty in ensuring the confidentiality of transaction details and information at the transaction originator
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Embodiment 1
[0034] figure 2 It is a flowchart of an electronic transaction method provided by an embodiment of the present invention. The electronic transaction method provided by the embodiment of the present invention is applied to the transaction initiator. Please refer to figure 2 , the specific steps of the electronic transaction method include:
[0035] Step S10: Generate the transaction details in the transaction request as N-particle state information, and combine the N-particle state information with the shared entangled state particles of the transaction initiator, bank and transaction responder to generate a mixed particle state.
[0036] Wherein, N is a positive integer.
[0037] It should be noted that in this step, the transaction details that need to be kept secret from the bank in the transaction request are generated into N particle state information, where N is a positive integer, which means that the transaction details can be converted into single particle state i...
Embodiment 2
[0044] On the basis of the above embodiments, the present invention also provides the following series of preferred implementation manners.
[0045] As a preferred embodiment, the value of N is specifically 2;
[0046] Correspondingly, the particle measurement is specifically the Bell measurement.
[0047] It should be noted that the value of N in this embodiment is 2, that is, in this embodiment, the transaction initiator device generates the transaction details information as two-particle state information, and then combines the two-particle state information with the shared entangled state particles, Generate hybrid particle states. This embodiment converts the transaction details information into two-particle state information, which has higher particle entanglement than single-particle state information, can relatively ensure the overall stability in the transmission process, and ensure the integrity and security of transaction details information. availability.
[004...
Embodiment 3
[0056] The technical solution of the present invention is described below through a specific scene embodiment. Not only this one, so this implementation does not specifically limit the present invention.
[0057] Assume that there are electronic transaction participants Peter (transaction initiator), Bob (bank end) and David (transaction response end). Peter needs to send a transaction request to David through Bob. First, the transaction details that need to be kept secret from Bob in the transaction request are converted into unknown two-particle state information, as shown below:
[0058] |φ M >=α|00> 12 +β|11> 12 , where |α| 2 +|β| 2 = 1;
[0059] Suppose Peter, Bob and David share the entangled W-state particles as follows:
[0060]
[0061] Among them, particles 1 and 3 are given to Peter, particles 2 are given to Bob, and particles 4 and 5 are given to David. The resulting five-particle state is:
[0062]
[0063] Peter performs a Bell measurement on parti...
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