MODERNIZATION OF SELF-MOVABLE FIXING DEVICES BASED ON VERNAM'S CIPHER ANALOGUE

• Main Authors: S. V. Burmistrov, O. M. Panasco, O. D. Laitarov
• Format: Article
• Language: English
• Published: Cherkasy State Technological University 2018-11-01
• Series: Вісник Черкаського державного технологічного університету
• Subjects: стаціонарна телепринтерна шифрувальна машина – лоренца; система вернама; шифротекст кодування; шифротекст декодування; блок формування зворотного шифротексту.
• Online Access: http://vtn.chdtu.edu.ua/article/view/162812

In the article a functional scheme of encryption device, which is the realization of one of the variants of modernization of the Lorenz German stationary encryption machine, is developed. The device works by superposing the ciphertext on the main text of messages. It also has absolute cryptographic stability, provided that it uses conditions similar to those of the Lorentz operation, but does not use the Vernam encryption system. The advantage of the proposed character encryption device is the much more powerful cipher-text alphabet. It consists of (n-1)! times more characters than in Vernam's cipher. This significantly increases the cryptostability of the system. Unlike the Vernaim cipher, in the proposed encryption device, the ciphertext encoding does not equal the decryption ciphertext. Therefore, in order to unify the receiver and transmitting part of the device in its design, it is proposed to introduce an additional block – a block of formation of the reverse ciphertext, which automatically generates ciphertext encoding on the basis of ciphertext decoding. The basis of this project is a special software complex designed to calculate the principle electric circuit of the block of formation of the reverse ciphertext, which automatically generates ciphertext encoding on the basis of ciphertext decoding