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Quantum Search on Encrypted Data Based on Quantum Homomorphic Encryption
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DOI：10.1038/s41598-020-61791-9.png)
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摘要
En 中文
We propose a homomorphic search protocol based on quantum homomorphic encryption, in which a client Alice with limited quantum ability can give her encrypted data to a powerful but untrusted quantum server and let the server search for her without decryption. By outsourcing the interactive key-update process to a trusted key center, Alice only needs to prepare and encrypt her original data and to decrypt the ciphered search result in linear time. Besides, we also present a compact and perfectly secure quantum homomorphic evaluation protocol for Clifford circuits, where the decryption key can be calculated by Alice with polynomial overhead with respect to the key length.
Keyword:
SCHEME
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期刊
IF:
3.9
论文数:
28.0W
被引数:
83.5W
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