Talk:Gottesman and Chuang Quantum Digital Signature

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Anonymous user #1

11 months ago

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I have many doubts on the protocol description (sorry if some are naif, I am just starting with quantum). In particular I am interested in the part of key distribution and generation:

• is the one-way quantum map applied to single bits? Or to groups of bits at once?

• the seller sends apparently sends two copies of the results of the function, one to buyer and one to verifier, right? I guess the two copies are obtained by computing twice the one way-function on the same data, right?

• what's the difference between Buyer aborts and protocol aborts?

• the swap tests are done on many pairs of qbits, right? How are the results of the different tests combined?

Thanks in advance for helping me! Best,

Ivan Lanese (University of Bologna)

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