Privacy preserving cloud image authentication scheme based on attribute based PIR

• 1、College of Information Science & Electronic Technology, Jiamusi University, Jiamusi154007, Heilongjiang, China

Abstract：In order to solve the potential problem of privacy of the owner in the process of graph authentication in cloud environment, a privacy protection scheme for cloud graph authentication based on attribute-based PIR was proposed.This scheme uses attribute based privacy information retrieval (PIR) to complete privacy graph authentication in the secret environment, so the graph features stored by the cloud server and provided by the data owner are encrypted and prevent the cloud server from obtaining the privacy information.On the other hand, the user does not need to provide the plaintext data characteristics during authentication and the encryption attribute characteristics also generalized to protect the user privacy.Finally, through the performance analysis, it is theoretically proved that this algorithm has better privacy protection ability and algorithm execution efficiency. Then experiments carried out through the public data set further proved the superiority of the proposed scheme.

Keywords： Privacy protection cloud graphs graph authentication privacy information retrieval attribute base encryption