Collaboration Encouraging Quantum Secret Sharing Scheme with Seal Property

• DOI: 10.48550/arxiv.2409.07863
• Publication Date: 2024-09-12
• Authors: Xiaogang Cheng; Ren Guo
• Keywords: FOS: Computer and information sciences; Quantum Physics; Computer Science - Cryptography and Security; FOS: Physical sciences; Quantum Physics (quant-ph); Cryptography and Security (cs.CR)

A new concept of quantum secret sharing is introduced, in which collaboration among participants are encourage. And the dealer can ask to send back their share and revoke before a predefined date or event, i.e. so-called seal property. We also give two concrete constructions CE-QSS-Seal (Collaboration-Encouraging Quantum Secret Sharing with Seal property) scheme. The first one unconditional secure achieve optimal bound second improve by introducing post-quantum computational assumption.