A dynamic data integrity verification method based on hadoop platform
A technology of integrity verification and dynamic data, applied in the field of network security, to achieve the effect of improving efficiency and saving communication overhead
Active Publication Date: 2022-05-17
BEIHANG UNIV
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Problems solved by technology
Aiming at the existing defects of the Hadoop platform, a dynamic data integrity verification method based on the Hadoop platform is provided, which supports the integrity verification of insertion, addition, deletion, and modification operations, so as to solve the problem of dynamic data integrity verification in the Hadoop platform
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[0057] Concrete method of the present invention is as follows:
[0058] Step 1: Construct the system model, including 4 entities, including Hadoop platform, data owner, data user and auditor. The system model is as follows figure 2 As shown, the Hadoop platform provides storage services; the data owner stores the data on the Hadoop platform and authorizes the data user to use it; the data owner authorizes the auditor to verify the integrity of the file, and the auditor regularly verifies the integrity of the data ; Data owners and data users can request the auditor to return the integrity verification report at any time.
[0059] As a trusted third party, auditors truthfully return data integrity verification reports to data owners and data users. Data stored on the Hadoop platform may be tampered by malicious attackers, so it is necessary to verify the integrity of the data. The data owner authorizes a third party to verify the data, which has the following two advantages:...
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The invention discloses a dynamic data integrity verification method based on the Hadoop platform. 1. Build a system model; 2. The data owner generates a pair of keys, including a private key and a public key; 3. The data owner divides the file into blocks, Generate a file block label for each file block, upload the public key (g, N), file block label and file to the Hadoop platform; the data owner sends the public key (g, N) and file block label to the auditor; 4 . The auditor generates a challenge value and sends it to the Hadoop platform; 5. The Hadoop platform generates a proof value based on the challenge value and sends it to the auditor; 6. The auditor checks the proof value and returns the audit report to the data owner; 7. The data owner remotely updates the data on the Hadoop platform. After step 7 is completed, jump to step 4 and repeat steps 4 to 6. The invention saves the communication overhead of file transmission and improves the efficiency of data integrity verification.
Description
technical field [0001] The invention relates to a dynamic data integrity verification method based on a Hadoop platform, belonging to the technical field of network security. Background technique [0002] With the emergence and development of big data remote storage technology, how to protect the integrity of remote data has become a major challenge for current big data technology. As a data protection technology, data integrity verification can remotely verify data integrity without local data backup. The Hadoop platform is currently the most common open source big data platform. Research on the remote data integrity verification method suitable for the Hadoop platform is conducive to protecting the security of big data and promoting the application of big data technology. [0003] Remote data integrity verification was proposed in 2008, and since then many scholars have developed many remote data integrity verification schemes. Ateniese et al. proposed the first remote d...
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IPC IPC(8): G06F21/64
CPCG06F21/64
Inventor 尚涛陈星月庄浩霖杨英赵铮刘建伟
Owner BEIHANG UNIV