Eavesdropper-Blind Remote State Preparation and Applications to Quantum Public-Key Encryption
An arXiv preprint proposes an eavesdropper-blind remote state preparation protocol, in which the choice of quantum state remains hidden from an eavesdropper during preparation. The authors show how this primitive can be used to construct quantum public-key encryption.
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What this could mean
- 0–2 yearsPlausible
If the protocol's security assumptions hold and its resource overhead is moderate, it could enable experimental demonstrations of quantum public-key encryption on existing metropolitan quantum networks within two years.
Quantum networking testbeds already distribute entanglement and have demonstrated remote state preparation; an eavesdropper-blind variant would require protocol-level changes and security analysis but no fundamentally new hardware, making near-term implementation plausible if the construction is efficient.
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