Universal quantum encryption for quantum signature using the swap test

Title
Universal quantum encryption for quantum signature using the swap test
Authors
문성욱한상욱타누모이강민성최호원
Keywords
Quantum cryptography; Quantum signature; Existential forgery; Swap test; Universal quantum encryption scheme
Issue Date
2018-10
Publisher
Quantum information processing
Citation
VOL 17, NO 10-254-11
Abstract
We suggest a universal quantum encryption scheme suitable for use in quantum signature. The verifier in a variety of quantum signature protocols usually checks for the falsification of the quantum signature state pair by using a swap test. However, these quantum signature protocols are not secure against existential forgery attacks; We prove that the universal quantum encryption scheme proposed in this paper is secure against this type of forgery because it uses the non-(anti)commutativity of an arbitrary unitary operator. In addition, we demonstrate its use in a quantum signature. Moreover, the optimization of this encryption in comparison with other encryption schemes is presented.
URI
http://pubs.kist.re.kr/handle/201004/68030
ISSN
1570-0755
Appears in Collections:
KIST Publication > Article
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