Multi-user broadcast authenticaiton in Power LTE Private Network with Compressed Bloom Filter

The number of Power LTE Private Network access terminals has increased sharply, which has impacted the traditional centralized authentication mechanism. In response to this problem, this paper proposes a lightweight and scalable multi-user broadcast authentication protocol. Compression cloth is used in multi-level μ TESLA, The Bloom filter replaces the process of binding the multi-level μ TESLA key chain by the Merkel tree. The protocol has properties such as long duration and self-healing. By allocating appropriate storage space at each receiving end, the communication load is greatly reduced. Combined with the Elliptic Curve Cryptography (ECC) algorithm similar to the public key cryptography (PKC) calculation mode, the analysis results show that the protocol can ensure long-term security and reduce energy consumption.