Dynamic Proof of Retrievability from Cloud Storage

Tech ID: 23753 / UC Case 2014-046-0

Patent Status

Patent Pending

Brief Description

Data storage outsourcing has become one of the most popular applications of cloud computing, offering benefits such as economies of scale, flexible accessibility, efficiency, and allowing companies to focus on their primary business activities. Due to the increase in percentage of services conducted online and number of mobile internet connections, demand for data storage continues to grow. Customers in this industry are primarily concerned with authenticated storage and data retrievability. Although many efficient proof of retrievability technologies have been developed for static data, only two dynamic technologies exist. However, both are too expensive to implement in practice due to the fact that they require a high level of bandwidth. To address this problem, researchers have developed a dynamic proof of reliability scheme that requires 300 times less bandwidth than currently available technologies. This innovative technology makes dynamic proof retrievability of data practical and efficient, and thus attractive for the industry implementation. This technology gives clients of cloud storage providers assurance that their data has not been modified and that no data loss has occurred.

Suggested uses

  • Cloud computing
  • Secure data storage


  • Significant reduction in required bandwidth and thus costs
  • Offers customers a significantly stronger guarantee of data security and authenticity
  • Allows cloud data storage services to expand into industries requiring much higher security standards

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  • Stefanov, Emil

Other Information


data, data security, cloud computing, security, privacy, data storage, data loss

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