3G网络增强型用户鉴权算法设计

Algorithm Design of ESA in 3G

基于SHA-1的ESA鉴权算法是个标准化的算法组,一般只认为其是AKA的增强型。从具体算法设计出发,说明ESA可以具有的检查盗号现象的应用特征,并将其同基于Rijdael算法AKA相比较,指出在一次鉴权过程中其算法结果利用率仅为AKA的一半。

ESA which is based on the SHA-1 algorithm is a standard algorithm group. In general it is considered as the enhancement of AKA. This paper starts with the concrete algorithm design, illuminates the application character of check-up stealing number phenomenon.which ESA can have. We compared it with AKA based on the Rijdael algorithm, indicated that the result utilization ratio of ESA in one authentication process is only half of that of AKA.