Unclonable Secret Sharing

ePrint Report: Unclonable Secret Sharing

Prabhanjan Ananth, Vipul Goyal, Jiahui Liu, Qipeng Liu

Unclonable cryptography utilizes the principles of quantum mechanics to addresses cryptographic tasks that are impossible classically. We introduce a novel unclonable primitive in the context of secret sharing, called unclonable secret sharing (USS). In a USS scheme, there are $n$ shareholders, each holding a share of a classical secret represented as a quantum state. They can recover the secret once all parties (or at least $t$ parties) …

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