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Robust multi-party semi-quantum private comparison protocols with decoherence-free states against collective noises

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arxiv 2301.11119 v1 pith:QBYK72HV submitted 2023-01-26 cs.CR

classification cs.CR
keywords protocolsproposedresistattackscollectivecomparisondecoherence-freemulti-party
verification ladder T0 review T1 audit T2 compute T3 formal
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Based on decoherence-free states, two multi-party semi-quantum private comparison protocols are proposed to counteract collective noises. One could resist the collective-dephasing noise well, whereas the other could resist the collective-rotation noise. Multiple classical participants could compare their secret information by performing the proposed protocols once. It is manifested that the proposed protocols could resist both external attacks and internal attacks. Besides, the operations of our protocols were simulated on the IBM Quantum Experience.

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