The WiMAX Data Encrypted Authentication Program of the SMS4-GCM Algorithm

In view of the WiMAX data encryption using DES encryption algorithm and insufficiency key strength in data transmission,SMS4-GCM algorithm was proposed by referring to the domestic commercial wireless encryption algorithms SMS4 and combining the safe and efficient authentication mode GCM.The safety performance(key length was changed from 32 bits to 128 bits) of WiMAX was improved and the confidentiality of the data transmission was guaranteed.The experiment about simulation algorithm of SMS4-GCM was carried out and the relevent test results were got.