Multi-attribute Authentication Method Based on Continuous Trust Evaluation

In order to solve the data security problems faced by the power Internet of Things, this article combines the trust evaluation technology and the token authentication method to propose a multi-attribute identity authentication method based on continuous trust evaluation. This method embeds the trust evaluation value into the token, and authenticate the user's identity through the real-time update of the token, thereby granting the corresponding authority. At the same time, the authentication process is encrypted and decrypted by mixing the random generation matrix encryption algorithm based on chaotic mapping and the RSA digital signature algorithm to improve the security of authentication. The experimental results show that the trust evaluation value obtained by the continuous trust evaluation algorithm for users with different identities are different, so the resource permissions obtained are also different. Therefore, the multi-attribute authentication method combined with trust evaluation in this paper has higher security and confidentiality than previous authentication methods.