/ world today news/ Chinese scientists have developed an e-commerce strategy that enables the world’s first online trade with five users using quantum technology.
Currently, e-commerce messages, which are guarded by classical encryption algorithms, are vulnerable to hacking by powerful quantum computing. Because of this, some cryptologists have been trying to use quantum entanglement to securely distribute unhacked quantum states among multiple parties to protect against identity theft and payment fraud. However, a feasible quantum algorithm that prevents message senders from rejecting offers they have already made in transactions has not been developed to date.
Researchers from Nanjing University and the People’s University of China have created an e-commerce protocol based on a new quantum digital signature (QDS) that generates correlated bit strings between multiple remote parties for signatures through quantum law. The approach they propose combines quantum secret sharing and one-time universal hashing to ensure transaction integrity, authenticity and, in particular, non-repudiation. In an experiment, the team demonstrated a five-user quantum network using the protocol, the study, published Saturday in the journal Science Advances, said.
The quantum network can ensure that contract signing and payments are executed quickly and accurately by eliminating the need to identify a trusted third party in advance.
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