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针对云存储的特点,设计并实现了基于网络编码的远程数据验证方法.应用网络编码对原始数据编码,将编码后的数据上传到云端,提供了数据修复功能,减少了数据修复的计算开销,保护了数据的可用性和隐私安全;基于椭圆曲线上的Boneh-Lynn-Shacham(BLS)算法构建验证协议,用户可自身或委托一个第三方验证者(TPA)验证数据的完整性.理论分析和实验结果表明本方案安全可行.
Aiming at the characteristics of cloud storage, a remote data verification method based on network coding is designed and implemented.Using network coding to encode the original data, and uploading the encoded data to the cloud, the data restoration function is provided, reducing the computational overhead of data restoration, Protects data usability and privacy security; builds authentication protocol based on the Boneh-Lynn-Shacham (BLS) algorithm on elliptic curve, and the user can verify the data integrity by himself / herself or by a third party verifier (TPA) The results show that this scheme is safe and feasible.