The original text of the skin password is the "century difficulty" password of the United States, which was written by a top cryptographer named skin in the Soviet Union. The skin password comes from the TV series "plot against"

In the play, the author Mecca invented a female super cryptographer-Leva Skins, a Soviet cryptographer. She used this password to deal with Andro, a boy in her class, but it was finally cracked by the beautiful and generous Chen Shu.

The plot against is a spy TV series based on Mai Jia's novel of the same name, starring, Wang, Gao Ming and others. The whole drama is divided into three chapters: listening to the wind, observing the wind and catching the wind, which mainly tells the little-known legendary story of a group of special intelligence workers in China.

Extended data:

Replacement encryption: an encryption method in which one character replaces another.

Transposition encryption: an encryption method that rearranges the positions of letters in plaintext.

Wheel encryption method: multi-code encryption method, using multiple wheels, each wheel realizes single code encryption. After each letter is encrypted, these rotating wheels can be combined to produce a new replacement pattern.

Multi-code encryption: an encryption method in which multiple letters can be used instead of one letter in plaintext.

Entrainment: A method of hiding messages by hiding their existence.

Other algorithms, such as XOR, CA (stream encryption), MD5, SHA 1, ElGamal (stream encryption), Diffie-Hellman, new elliptic curve algorithm ECC (digital signature, public key encryption), etc.