Data query method and device based on proxy re-encryption, storage medium and equipment

Data query method and device based on proxy re-encryption, storage medium and equipment

The embodiment of the invention relates to a data query method and device based on proxy re-encryption, a storage medium and equipment, and relates to the technical field of information security. The method comprises the following steps: receiving ciphertext data and a re-encryption key sent by a da...

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Hauptverfasser: HUANG CUITING, CHEN TAO, CAI JINGXUAN, BAO JIABIN, ZHOU YIJING
Format: Patent
Sprache:chi ; eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator HUANG CUITING
CHEN TAO
CAI JINGXUAN
BAO JIABIN
ZHOU YIJING
description The embodiment of the invention relates to a data query method and device based on proxy re-encryption, a storage medium and equipment, and relates to the technical field of information security. The method comprises the following steps: receiving ciphertext data and a re-encryption key sent by a data provider; the data provider is used for generating a public key and a private key, generating a re-encryption key and a decryption key based on the private key, and sending the decryption key to the data query party; the public key is used for encrypting data to obtain ciphertext data; receiving a query request sent by a data query party, and determining a ciphertext query result based on the query request; and re-encrypting the ciphertext query result by adopting the re-encryption key according to a preset re-encryption algorithm to obtain a re-encrypted query result, and sending the re-encrypted query result to the data query party, so that the data query party decrypts the re-encrypted query result by adoptin
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Data query method and device based on proxy re-encryption, storage medium and equipment
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