In this paper, the conception and writing process, thesis advisor professor Wang Guohua I, on my thesis more complete is undeniable, Wang each to my question answer and give suggestions for writing carefully, my thesis makes careful revision, improve the structure of my step the content is full. No king of the teachers careful guidance, this thesis is impossible.

　　In the process of writing this paper, I feel that my level is still very deficient. More than life, learning, life is a process of continuous learning and improvement, where is the road at the foot of the road?! 　　英文版论文致谢 篇27

　　In the paper completed, I feel excited. From the topics of the paper, the collection of data to the writing and layout of the paper, I got a lot of enthusiastic help.

　　First of all, I would like to thank Mr. Zhang Yuqing, who led me to the door of information security, and put forward a lot of valuable comments on my research, so that my research work has a goal and direction. In the past two years, he was careful guidance and education to me. It enables me to study and improve continuously, and the research results of these tohttps://p.9136.com/28e the main material of this paper. At the same time, Zhang profound knowledge, rigorous scholarship attitude also makes me very admire, is my model of learning and work. Thank the teacher for my care and attention, in this to express our sincere gratitude.

　　Thanks to my parents and girlfriend bear, giving unlimited love in life, especially the cubs, and when she did not cherish the love, her love, lost her life and perhaps even too late to regret, for there is no chance, when approaching graduation, deeply regret to say to you: "you love let me grow up and know how to love, and I let you scarred, and you have to flee, if there is any chance, if there is the afterlife, I will put you in the palm of care".

　　Thank you for working life in the prevention center colleagues, Dr. Zhang Dehua, Dr. Liu Xiangning, Dr. Mao Jian, Zhao Honghao, Jia Suping, Li Haibao, Sun Pengpeng, Yang Xiaoyan, Huang Dandan, Wang Ruoxin, Yang Ni, Yu Junsong, because you have a wonderful and fulfilling life.

　　Thank you in the study of information security professional students spend time together students, Jiang Bailiang, Shi Miaolei, Zhang Jun, Cheng Liang, Jing Wong, Wu Jingjing, Hu Hao, Jia Wei, Liu Ziwen, Liu Jingxuan, Deng Yi, Wang Xianggen, Wei Yong, Ren Rong, and spend the internship at the state Key Laboratory of information security years.