Abstract
Outsourcing computing is an application of cloud computing. It is an important method to solve the problem of client resource limitation. However, outsourcing computing brings security and efficiency challenges. Matrix multiplication computation (MMC) outsourcing has attracted many researchers to carry out research and has achieved many admirable results. Unfortunately, there is still a problem with zero elements of information protection for MMC outsourcing. In this paper, we are motivated to design a protocol, which can protect the private information of the zero elements, for outsourcing MMC to the cloud server. Our proposed protocol not only solves the problem of protecting zero elements information but also has no large client-overhead. The main idea is to add a special matrix to the original matrix for hiding zero elements before transforming the computation task. Then, the cloud server computes the received encryption task and returns the result to the client. Finally, the client decrypts and verifies the result. The experiment verifies the efficiency and practicability of our protocol. The comparison with previous schemes shows that the protocol improves security without much client overhead.
Highlights
The rapid development of big data makes the processing pressure of terminal equipment more and more
The cloud server performs matrix multiplication computation on the received matrices, and returns result to the client
Receiving the results returned by the cloud server, the client decrypts the consequence according to the local secret keys to obtain the solution of the original matrix multiplication computation problem
Summary
The rapid development of big data makes the processing pressure of terminal equipment more and more. The cloud server performs matrix multiplication computation on the received matrices, and returns result to the client. ResultDec. Receiving the results returned by the cloud server, the client decrypts the consequence according to the local secret keys to obtain the solution of the original matrix multiplication computation problem. The malicious cloud model: The cloud server may not perform computations according to the protocol It will forge a random result back to the client and attempt to pass the client-side verification for saving its resources. A. PROPOSED SECURE OUTSOURCING OF MMC The client wants to outsource the matrix multiplication computation task Φ(XY ) to the cloud server and does not reveal its privacy, so the client can implement our protocol to complete the outsourcing computation.
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