Public-key quantum signature based on phase shift operation

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Article number20500840
Journal / PublicationModern Physics Letters B
Issue number6
Online published31 Jan 2020
Publication statusPublished - Feb 2020


A public-key quantum signature (QS) scheme is proposed, in which the phase shift is the private key and the quantum state after the phase shift operation is the public key. The signatory uses the private key to encode the quantum state, and uses the Bell measurement to generate the signature. The receiver performs the unitary operation according to the signature, and then compares the quantum state with the public key to verify the signature. Our scheme does not need a trusted arbitrator, and the signature can be verified by the receiver publicly. Compared to the existing arbitrated QS scheme, our scheme will be more practical.

Research Area(s)

  • phase shift operation, public-key signature, quantum cryptography, Quantum signature