What does salt mean?

In the computer field, salt usually refers to a data encryption technology that increases password security. In cryptography, salt refers to adding some random interference data to plaintext password according to certain rules, and then hashing encryption to improve the complexity and randomness of the password. After using salt encryption, even if the attacker gets the hash value, he can't get the original password by brute force in a short time, which can effectively protect the user's account security.

Besides encryption technology, salt can also mean salt. In the field of cooking, salt is a common condiment, which can increase the taste and taste of food. Different salts have different uses. For example, sea salt can improve the flavor of dishes, and rock salt can increase the color of food. In addition, salt has a fresh-keeping function, which can prolong the shelf life of food.

In addition to its application in computer and cooking, salt is also of great significance in the medical field. The purity of salt is as high as 99.5%, and the main component is sodium chloride. In medicine, sodium chloride can also be used to make physiological saline and hydrochloric acid, which is an important pharmaceutical raw material. In some special treatments, salt can also play a certain auxiliary role. For example, to treat oral ulcers, gargling with salt water can play an anti-inflammatory and analgesic role.