Encryption is important, even life-saving!
In order to ensure that their secrets are not discovered, in order to ensure their personal safety, many men have added passwords to their mobile phones to prevent being spied on by others, and the main object of caution is their girlfriends.
When the girlfriend wants to see something, she is just about to click in, and it shows that a password is required so that she can't see what's inside.
Therefore, encryption is very important. There are many encrypted things, such as language, text, documents, information, etc., which improve the security level through encryption, prevent information leakage, and cause adverse effects.
When fighting a war, stealing intelligence is a very important thing, and if you have intelligence, you can grasp the other party's every move. In order to prevent information leakage, people often encrypt language and text, so that even if they get the information, they need to decipher it, otherwise, the information will be of no use.
In Chinese history, the Taiping Heavenly Kingdom used an "encrypted language" to ensure that the information was not known by the Qing army. After Hong Xiuquan led the Taiping Army to revolt, he marched south and north along the way, capturing many Qing soldiers.
Hong Xiuquan learned a lot of information from the Qing soldiers and made full preparations for his victory.
There is an old Chinese saying that "treat others in the way of others, and treat them in the same way", Hong Xiu was able to capture the Qing soldiers to get intelligence, and Li Hongzhang could also catch the Taiping Army to get intelligence.
In order to prevent Li Hongzhang from stealing intelligence from the Taiping Army, Hong Xiuquan used an "encrypted language", Hakka. Hakka is a Chinese dialect whose pronunciation is very close to that of Old Chinese and is widely used in ancient official texts.
Hong Xiu, who was all from Guangxi, spoke Hakka and understood Hakka, so he called on the Taiping Army to speak all Hakka and communicate in Hakka.
Many people in the Taiping Army were not from Guangxi, but there were also people from other places, and after they joined the army, they first learned Hakka dialect to the point where they could understand and speak. Hong Xiuquan's approach is very clever, and it also plays a certain role.
After the defeat of the Taiping Army, several Taiping troops were captured by the Qing army, and Li Hongzhang asked them how many people do you have? Where is Hong Xiuquan? A few creeps were scared to death and hurried to speak.
However, when they said it, Li Hongzhang couldn't understand it, and only heard them whispering, but he couldn't understand a word, and he couldn't get useful information at all.
At that time, there was no Mandarin, and the Taiping Army spoke Hakka, which Li Hongzhang could not understand, and he was very anxious. Later, Li Hongzhang learned that Zeng Guopan could understand Hakka, so he quickly asked Zeng Guofan for help, which led to information.
Nowadays, Hakka dialect has been widely used, and 96 million people in more than 80 countries around the world use Hakka dialect!
References: Draft History of the Qing Dynasty, Taiping Heavenly Kingdom Movement, Ancient Chinese, etc