Lightweight access authentication method and system for power Internet of Things equipment based on IBC system

Abstract

The invention discloses a lightweight access authentication method and system for power Internet of Things equipment based on an IBC system, and belongs to the technical field of information security. The method provided by the invention comprises the following steps: application of a target equipment public and private key to a ciphertext: after the target equipment generates a key application parameter, a key generation center KGC generates a target equipment identity public and private key pair according to a unique identifier ID of the target equipment, and after a symmetric key is used for encryption, the public and private key pair ciphertext is transmitted to the target equipment; the encryption key negotiation between the target device and other devices comprises the following steps: when the target device performs information interaction with other devices, based on identity public and private key pairs of the target device and other devices, introducing a random number to negotiate a master key, and generating a data encryption key after calculation by adopting a key derivation algorithm, that is, access authentication is passed through the data encryption key. According to the method provided by the invention, efficient and safe access authentication of the power Internet of Things equipment can be realized, and the safety and intelligent management level of the Internet of Things equipment are enhanced.

Description

technical field [0001] The present invention relates to the technical field of information security, and more specifically, to an IBC system-based lightweight access authentication method and system for power Internet of Things devices. Background technique [0002] With the development of new technologies such as mobile Internet and artificial intelligence, the two-way interaction between power users and smart grids is becoming more and more frequent, and users have higher and higher requirements for the service form and service quality of the grid. In order to meet the application needs of power users and enhance power users' awareness and participation in smart grids, the Internet of Things for Power comes into being. The network environment of the power Internet of Things is open and complex, with flexible and changeable access control, a wide variety of connected devices, a huge number, and uneven security performance. These devices will generate a large amount of data...

AI Technical Summary

Problems solved by technology

However, the management of PKI certificates is relatively complicated, and a multi-level CA system needs to be built, and certificate issuance, revocation, verification, and storage require a lot of resources.

The device access authentication technology based on the IBC identity authentication system can effectively avoid complex certificate management problems. However, the traditional IBC cryptographic system has problems such as private key custody and relatively complex cryptographic operations.

The above technologies are not suitable for access authentication of massive power IoT devices

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