Data recovery system based on fountain code in cloud storage
Peng Chen Lanchang Guo Yundi
The cloud storage service, as a new data storage and management service, has a portable and easy-to-use feature, but it is also accompanied by an important issue: how to ensure the integrity and recoverability of the data. To resolve this problem, A data recovery system based on fountain Code is designed and implemented. This scheme uses fountain code to encode data to ensure that data can be recovered under certain tamper ratio, while validating data integrity with the time complexity of hashing function. When users worry about tampering with their data, they simply challenge the server. Depending on the response of the server, you can know if the data you are storing is complete, and once the data has been tampered with, you can immediately ask the server to locate the tampering data and monitor the server for data recovery. Through the experimental analysis, this scheme can achieve 99% integrity detection rate when the data tamper rate is 1%~5%.
Data recovery system based on fountain code in cloud storage
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