A password is like a lock, which ensures the security of information. Generally speaking, passwords are difficult to crack, but some computer geniuses can easily crack simple passwords. China has a genius for cracking codes. Her name is Wang Xiaoyun, and she is a professor at Shandong University. She is interested in teaching herself cryptography. During her confinement after childbirth, she cracked the so-called safest password in the United States twice, which made the United States change its security system many times and made outstanding contributions to the study of password cracking in China.
Excellent since childhood, with a strong sense of exploration.
Wang Xiaoyun, 1966 was born in Zhucheng, Shandong province in August. Her family is very ordinary. Her father is a teacher. She is very busy at work and has no time to take care of her family, so the burden of family life almost falls on her mother. Yi has four brothers and sisters. They have good feelings for each other, so even if the family life is not rich, the family is happy.
Due to limited family conditions, Wang Xiaoyun was sent to school at the age of seven. The happy family environment makes her look forward to the future, so she studies very hard and is eager to have a good future after entering school.
Wang Xiaoyun has a very strong exploration heart since she was a child. She is willing to study many things that she doesn't understand. So her favorite subject is math, and the process of solving math problems step by step makes her feel excited. When she was in the sixth grade, the teacher once asked her students to prove a mathematical formula independently. It took Wang Xiaoyun only two days to answer the question, which surprised the teacher.
With the growth of age, Wang Xiaoyun still achieved excellent results and loved to explore. In the third year of high school, she worked harder than before, almost giving up all entertainment activities and preparing for the exam wholeheartedly. Many things happen. Wang Xiaoyun was finally admitted to Shandong University with excellent results. When choosing a major, Wang Xiaoyun chose mathematics, which she loved since childhood.
Encounter cryptography
After entering the university, Wang Xiaoyun has a wide range of interests and likes to participate in various activities, so she has made many friends. Her grades are still excellent, and she has been studying in Shandong University until she graduated with a doctorate. After graduation, Wang Xiaoyun made a choice between going out to work and staying in school to teach. Finally, under the persuasion of her tutor, she chose to stay in Shanda to teach. It was this decision that led her to encounter cryptography that changed her life.
With Wang Xiaoyun, there is a good friend from her college days. When Wang Xiaoyun visited a friend, she heard him talk about one of his students' love for cracking passwords. Wang Xiaoyun was moved by the persistence and love of the students in the story, and at the same time he was full of curiosity about code decoding. She began to pay attention to code decoding.
After slowly understanding this matter, she tried to crack a simple password. It was these attempts that aroused her strong exploration and she became interested in password cracking. Wang Xiaoyun began to teach himself cryptography. At that time, as soon as she got off work, she would get into her room and concentrate on her research. Even if she is tired from work, she has reached the point where she forgets to eat and sleep.
Wang Xiaoyun was born in the Department of Mathematics, and she already knows all kinds of algorithms. Therefore, she is quite handy in studying passwords based on algorithm design, and has not encountered any major difficulties. In just over a year, Wang Xiaoyun has basically mastered all the knowledge of password decoding, and with her unusual exploration and logical ability, she has cracked many well-known passwords.
Cracking the so-called "hardest password" in the United States for the first time
200 1, Wang Xiaoyun was officially promoted to professor of Shandong university for his excellent performance. At the same time, because of pregnancy, the school gave her pregnancy leave, and Wang Xiaoyun, who had been very busy, suddenly had nothing to do, so she challenged to crack all kinds of passwords at home. After many successes, she wanted to increase the difficulty and find a password that has not been cracked so far, so MD5 came into her sight.
MD5 is a complete password encryption program, which is used in many aspects such as password encryption and management in America. It was created by Ronald, an academician of the National Academy of Engineering of the United States, and was finally shaped after many processing and improvements by the American government. Its complexity is the highest in passwords. The United States has always believed that no one in the world can crack this password, so it is applied to the encryption of extremely important aspects such as security systems, and claims that it is the most difficult password to crack in history.
Some people have been trying to challenge it, but they have failed without exception, so people have acquiesced in this "most difficult" statement. After knowing enough about MD5, Wang Xiaoyun became curious and wanted to be the first person to crack this password.
Since then, there is only one thing left in Wang Xiaoyun's life besides raising a baby: the difficulty of cracking MD5 is not to be boasted. Even Wang Xiaoyun, who has been studying passwords for several years, has successfully cracked many difficult passwords. At first, there was nothing he could do. After studying hard for a long time, Wang Xiaoyun has made some progress. At this time, she was about to give birth and had to stop working and concentrate on raising the baby.
I started studying immediately after giving birth, and I didn't stop working during confinement. Without the burden of children, Wang Xiaoyun worked harder and studied day and night. Finally, she and her team finally finished decoding MD5 in three years. In 2004, Wang Xiaoyun published his and his team's research results, which shocked the whole world.
Once again, the improved American password was cracked and the national prize of 7 1 10000 was obtained.
After Wang Xiaoyun released his research results to the public, the United States hastily announced the abolition of MD5 password and used the new SHA- 1 password for encryption due to security concerns. Wang Xiaoyun began to challenge the new American password again. The American password looks complicated on the surface, but after careful study, we can find that its basic part is the framework of MD5.
Therefore, Wang Xiaoyun who cracked MD5 was familiar with SHA- 1 when cracking. It only took two months to crack it again, which made people stunned and surprised the world. Wang Xiaoyun was awarded 7 1 10000 yuan by the state for cracking important American passwords twice and making great contributions to the cause of password cracking in China.
Later, the United States wanted to invite Wang Xiaoyun to develop in the United States and offered generous terms, but Wang Xiaoyun refused without hesitation. She said, "In China, I should serve China." Today, Professor Wang Xiaoyun is still active in the front line of password cracking, and I believe she can make greater breakthroughs in password technology in the future.