= Japanese M-1 cipher machine
{wiki=Japanese_M-1_cipher_machine}
The Japanese M-1 cipher machine was a cryptographic device used by the Imperial Japanese Army during World War II. It was designed to encrypt and decrypt classified military communications, similar to other cipher machines of that era, such as the German Enigma machine. The M-1 was an electro-mechanical device that utilized a system of rotors to encipher messages. Each rotor had a different wiring pattern that changed the letters being encoded, providing a degree of security against unauthorized decryption.
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