Day exchanges

Description

In Russia, the day is celebrated may 5 exchanges. These days think that Cryptography is used in military and diplomatic Wednesday. However, in ancient times the work in literary Cryptograms and philosophical Wednesday.
The word "Cryptography" with Greek language translated as "secret writing". All known Leonardo da Vinci is the inventor of the first encryption apparatus.

Medieval writers studied the case and published a new book in encrypted form. In those days the European yards were the case. Presvjashhennye personality chatted among themselves thanks to kriptogrammam. Russian writers began to be interested in cryptography in 12 century. Even Tsar Alexei tishajshij was secret writing system. For philosophers of this lesson was honorary.

Sometimes the authors of scientific discoveries turned to encryption for universal acceptance. Galileo Galilei is very often used anagrams. Anagram is a rearrangement of the letters in one word.

In the past, due to religious neterpimostej philosophers and scientists could not publish their work. However, to keep their ideas, they had to encrypt their work. Scientists had hoped that the future generation will reveal their secrets and appreciate their works.

During the reign of Tsar in Russia, journalists too was very hard because of the rigid censorship. There was a time when one still managed to successfully encrypt in a newspaper article the death of one of the satraps. He placed the picture on which was depicted the grave fence and seen the inscription, written in German, "here's where the dog is buried.

When the Telegraph and created radio, crypto case has become very popular. Information passed with great speed and it could intercept. Cryptographic service in Russia was launched way back in 1921 year. A large number of secret information that is useful to the country, was handed over by encrypting data.
All cryptographic service workers this day receive congratulations. Thank you for your hard work!