The world's most difficult code to crack, but it is said that it was invented by Qi Jiguang, a famous anti-Japanese general in China, because he invented the "Fanqie code". He used the Fanqie pinyin phonetic notation method to successfully create a code that is known as the most difficult to crack. "Secret code". Qi Jiguang is a famous anti-Japanese general, strategist, calligrapher, and poet in the Ming Dynasty. Qi Jiguang fought against Japanese pirates on the southeast coast for more than 10 years, eliminating hidden dangers of Japanese pirates for the country and people, and ensuring the property security of coastal people. .
The first country in the world to use passwords was China, and the "cipher code" invented by Qi Jiguang was known as the most difficult password to crack in the world at that time. In ancient times, passwords were not valued and popular. High, but in modern times, we can already find that passwords are in our lives all the time. Passwords can ensure the security of information, property, etc. The main purpose of the emergence of ancient codes is to ensure the security of intelligence, and the main form of ancient codes is confidential writing and corresponding deciphering methods.
The definition of cryptography is about how to communicate oneself in an environment where the enemy or the other party exists. During the Ming Dynasty, Qi Jiguang invented what is known as the most difficult "secret code", which is also the most famous "anti-cut code". Qi Jiguang also specially compiled two poems for this code. These two poems are what we now call "code books". They are respectively:? The willow side prays for Qi to be low, and the Bota fights for the sun. Ying Meng said joyfully and slapped her hands to let you know. ?,? Spring flowers are fragrant, autumn mountains are blooming, guests need gold cups to sing, and solitary lamps shine in silver vats. In the eastern suburbs, after crossing the West Bridge, the sound of chickens reminds the sky, and the plum blossoms cover the ditch. ?
These two poems are the entire set of codes. Through these two poems, information can be secretly transmitted, and these two poems naturally act as a medium. Once the medium is It is found that this set of passwords has lost its security and significance.