Fu detective trick
- Deciphered Traditional Password
Telling the big detective to the "one secret" problem, but this problem will soon solve the blank, because the prisoner is also "drawing a small person" with this method. There are many trails of big detectives, let alone he is not a general manager, and there is also a deep study on the password. By the next to the side, you will know the meaning of the little person.
The blessing is not a mites in the stomach. What is the law?
The trick is "Statistical Analysis" - because the combination between the letters and the combination of letters is regular. Here are categorologists to classify English letters in accordance with frequencies: High frequency letters: E, T, A, O, N, I, R, S, H - frequency letters: D, L, U, C, M low frequency Letters: p, f, y, w, g, b, y rare alphabet: J, K, Q, X, Z
The frequency in the 26 letters is the highest, with 13.05%. There are 4 small people in the first small note, which can boldly speculate that this small person is representative "E". The more people know that the more beneficial to crack the password, and then contact the case for further reasoning to know the information conveyed on the note.
Only 26 English letters are relatively easy to count, but it is more difficult to analyze the vast Chinese Chinese characters. However, with the development of technology and the auxiliary of the computer, my country has already analyzed research in the 1980s and has obtained the highest frequency of the highest frequency of 8,000 words, and also compiled the "Modern Chinese Frequency Dictionary". It is not difficult to find "", ground, get, "in everyday life.
Perhaps many people will have such questions, whether the statistical analysis method is always for help, and the four seas are all right? The intelligent heart has an answer - this is of course not going.
Today, technology has a thousand miles, and the development of cryptography is not the same as date. At that time, the cryptography was only stayed in the "manual stage", and the big detective can easily crack by relying on the red hand. But today, today, cryptography has already entered the computer from the manual phase, the machine stage, and electronic phases. The encryption technology is getting higher and higher, and a single statistical analysis has become more outdated. However, for a traditional cryptographic system, this method is still a way.
That is a traditional password, what is a modern password? Please see the decomposition.
