In modern cryptography, a "password dictionary" is often used to perform a brute force test on the account of a person/company/website to obtain a password. In short, "password dictionary attack" belongs to a branch of Rubber hide Cryptography, which includes hundreds of millions of content. Generally speaking, the richer the content and the more cross crowd the dictionary is, the better the effect will be. For example, the Ancient Chinese Dictionary is better than the Xinhua Dictionary. If the other party still fails to recruit, the Oxford Dictionary can also be considered. (serious nonsense)