Fengjin Han

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The mobile E-commerce identity authentication requires the SMS resources occupied, the numbers of dialogue with servers and the data transmission as few as possible. According to the requirements above, we design an improved identity authentication mechanism - IEIA (Iterative Encryption Identity Authentication) based on Hash Function, and achieve it through(More)
This paper gives a method and finally gets twelve marketing risk assuming factors based on 35 middle-sized Communications and related equipment manufacturing enterprises by statistical methods like PCA, D-S evidence theory, and fuzzy evaluation. Then we build marketing risk assessment model by probabilistic reasoning model based on Bayes network. Also there(More)
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