A general rethinking of social engineering--on the Psychology of cryptography

A lot of hackers are getting started with breaking passwords! But the decryption password became an important compulsory course, today I want to talk about is not how to crack the password, but a psychological article about the password! If some of the following examples are exactly the same as your password settings, then please change it immediately, your password is cracked the likelihood is very big!

The first thing to say is that many of the root because of the password-protected method, when his password is set up, the detection program will automatically prompt the password security, until the root changed to a password without rules. So it's a waste of time to analyze these passwords with password psychology! Our main needles are for some ordinary users! When we set the password, the General people will use their familiar words, so that they can facilitate memory! No way, people are born lazy! So which words are easy to remember! Is it not a rule? We can do a psychological experiment! The experiment is like this. I took 100 students out of college and asked them to write down two words! And tell them that the word is for the computer password is very important, and future usage is also very high! Ask them to consider as carefully as possible!

All right! Let's analyze the test results.

1, with their own Chinese pinyin most of them. 37 people

This tells us that password-cracking dictionary files should be targeted at China's special column! To use some chinese name Pinyin dictionary file!

such as: Wanghai, Zhangli,shenqin and so on!

2, use commonly used English words 23 people

Many of them use words that have very specific meanings, such as: hello,good,happy,anything, and so on!

3, using the computer often appears in the word 18 people

These words also have the operating system of the command, such as: System,command,copy,harddisk,mouse, and so on!

4, with their own birth date of 7 people

The date and year are different! But 3 of them have used the usual Chinese date-presentation Method! such as 970203,199703,050498 and so on! The two words in the above test are 21 people, nearly the same as 33 people!

Although some people use I did not give them classified, but there is a regular! I hope the above psychological test can give you some revelation of decryption! And do not blindly use the violence of the law!

Talk about so many password guessing, of course, to talk about how to protect your password is not cracked, please observe the following principles:

[1] No birthday as a password (too easy to guess)

[2] Do not use the ordinal number as the password (unless your ordinal number is infinitely large)

[3] Do not use the ID card size as a password (letmein! has guessed ID card font function Yes)

[4] Do not need to find words in the dictionary as a password.

Then according to the above points, what kind of password is the most difficult to guess, it is best to remember it?? The answer is: use a meaningful word as your own password, such as: Noonecancrackit is a very difficult to guess the type of password, based on the principle of the password guessing, your password is not to make some updates, or the case to make some swap?? If your password is coolfire, it is advisable to change it to Coolfire or coolfires (plus plural "s"), so that the chance of being guessed is much smaller.