The password means password in English.

Password is a confusing technology, which hopes to turn normal (identifiable) information into unrecognizable information. Of course, for a small number of people, this unrecognizable information can be reprocessed and recovered. Password is a general term for password in Chinese.

In fact, the password entered when logging in to websites, e-mails and withdrawing money from banks should be strictly called password only, because it is not an encrypted code in the original sense, but it can also be called a secret number. Mainly limited to the symbol system understood by individuals (such as a message). Such as cipher telegrams and cipher typewriters.

a password is a symbol compiled according to a specific rule, which is used to convert the information of both communication parties into secret and secret. In other words, a password is a sequence of symbols that hides the real content. It is to change the information expressed by an open and standard information code into an information code that can't be read by other people except the communication parties through a transformation method. This unique information code is a password.

With the development of computer and information technology, the development of cryptographic technology is also very rapid, and its application fields are constantly expanding. Passwords are not only used for information encryption, but also for data information signature and security authentication. In this way, the application of cryptography is no longer limited to serving military and diplomatic struggles, but also widely used in social and economic activities.

Origin of password terms:

The belt information sent back by Athens spies is the earliest password information in the world. The specific application method is that the communication parties first agree on the password interpretation rules, and then the communication party winds the belt around a wooden stick with the agreed length and thickness to write. After receiving the letter, if you don't wrap your belt around a stick of the same length and thickness, you can only see some irregular letters.

China is one of the first countries to use passwords in the world. And the most difficult code to crack was invented by China people. The word password is not unfamiliar to people, and people can cite many examples about using passwords. For example, passwords are used in secure communication equipment, and individuals use passwords to withdraw money from banks.