Public verifiable outsourcing data management method without trusted third party

• Main Authors: WANG RENYI, WANG QIANG, ZHOU FUCAI
• Format: Patent
• Language: Chinese; English
• Published: 03.11.2023
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides a public verifiable outsourcing data management method without a trusted third party, and relates to the technical field of network security. The method comprises the steps of data uploading, data deletion and data downloading, and provides a reversible cuckoo filter and a vector batch commitment aiming at the problem that an existing data security deletion scheme depends on a trusted third party and does not support public verifiability and version control. On the basis, a batch data security management scheme which simultaneously supports public verifiability and version control and does not need a trusted third party is provided. A data owner firstly generates an operation request, a cloud service provider responds to the request after receiving the request, and the data owner executes a corresponding operation after a response verifier passes verification. According to the method, TTP participation is not needed, privacy is met, public verifiable batch operation is supported, versio