Case 03/04. Caesar ↔ E2E
Цезарь ↔ E2E
Art
- Artist
- A history of ciphers
- Work
- Caesar → Alberti's disk → Vigenère → Enigma → Fialka → one-time pad → end-to-end encryption
- Year
- 1st century BC to today
Caesar shifted letters by three. Alberti invented a cipher disk in 1467. Vigenère made the key a word. Enigma and the Soviet Fialka turned rotors. Shannon proved the one-time pad unbreakable.
Code
modern cryptography
End-to-end encryption descends from all these machines: the key lives only on your devices.
Action
Decrypt today's word with the key from your passport.
Расшифруйте слово дня ключом из паспорта.
The label in the room
The same hash is printed at the foot of the label. If they match, nobody changed the text.
Two thousand years of ciphers, from Caesar's shift to a key that lives only in your phone. Without the key it is noise, with it — text. Decrypt today's word with your passport key.
Две тысячи лет шифров: от сдвига Цезаря до ключа, который живёт только в вашем телефоне. Без ключа шифр — мусор, с ключом — текст. Расшифруйте слово дня ключом из паспорта.
SHA-256 of the Russian label text bfb0aba9e618f812fd9dc5205ec99971b0d863f0a6bf46cc0f4338c0853967d6
In the room
A long timeline panel; the cipher-of-the-day insert; a photo of Fialka by arrangement with the Museum of Cryptography
Rights
Our own object