智能电网中一种动态数据完整性验证方案

摘要

In order to accurately and efficiently verify data integrity in smart grid with cloud storage,this paper proposes a new scheme for dynamic data integrity verification.On the basis of protecting the data confidentiality,this scheme performs BLS short signature on data and supports third party auditing,which can verify the integrity of partial data and reduce the computational cost according to user requirements.Meanwhile,it uses the Locality Sensitive Hash(LSH)as an quick searching manner to improve the query efficiency of updating the stored data and quickly retrieve the data while integrity being validated.Experimental results show that the proposed scheme can verify the integrity of the power data accurately and support efficient dynamic data updating.%为准确高效地验证智能电网云存储系统中数据的完整性,提出一种新的动态数据完整性验证方案.该方案在保证数据机密性的基础上,对数据执行BLS短签名操作,并支持第三方验证,可根据用户需求验证数据的完整性,减少计算开销,同时通过位置敏感哈希的快速检索方式提高更新存储数据的查询效率,在验证完整性时快速检索数据.实验结果表明,该方案可准确验证电力数据的完整性,并且支持高效的数据动态更新.