Research on Integrity Measurement of Trusted Access for Cloud Manufacturing Equipment Terminals

To address the issues of security in cloud servers and unauthorized device access resulting from illegal access to cloud manufacturing equipment resources, a trusted computing-based integrity measurement scheme for secure access to cloud manufacturing equipment resource terminal trusted access is proposed. This scheme consists of two parts. Firstly, the trust root is constructed by introducing the TPM(Trusted Platform Module), and the integrity measurement of the device resource terminal is carried out using the SM2-based uncertified interceptable signature algorithm. The trust state is transmitted layer by layer to the entire device resource terminal in a trust chain manner, completing the establishment of its internal trusted environment and integrity measurement; Secondly, by calling the SM2-based uncertified interceptable signature algorithm in TPM through the interface, a public-private key AIK (Attestation Identity Key)is generated. Based on the integrity verification strategy of publicprivate key cooperation, the device resource terminal can be trusted to access the cloud service. Finally, the effectiveness of the proposed method was verified through experiments.