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Non-interactive and verifiable outsourcing computation scheme for modular exponentiation. (Chinese. English summary) Zbl 1488.68015

Summary: In this paper, a non-interactive and verifiable outsourcing computation scheme for modular exponentiation under two untrusted server models was designed, which is based on limitations of the existing modular exponential outsourcing schemes, such as the low probability of single server validation and the need for multiple interactions between two fully verifiable servers. The proposed scheme protects the privacy of user data by logical segmentation, and the formal definition of security outsourcing proves that the outsourcing scheme is secure. The scheme has the following advantages: the input data are confidential; there is no interaction between the server and the user; each part of the results calculated by the server can be verified. Compared with existing schemes, the proposed scheme has the advantages of complete verifiability, input confidentiality and non-interactivity.

MSC:

68M25 Computer security
68M11 Internet topics
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