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Designing a new hybrid cryptographic model
(Springer, 2020) Selçuk, B.; Tankül, A.N.A.
With the rapid development of technology, one of the most important requirements in today’s systems is the reliable transfer of information and confidentiality. Thus, military, electronics, banking systems and many other places have become the fields of use of cryptography science. Cryptology methods are used to solve these problems and need of secure information transfer resulted in the development of reliable encryption techniques. In this study, a new poly-alphabetic substitution cipher is designed using the coordinate axes. The proposed method of a hybrid encryption method is a mix of the Polybius square cipher and the Vigenère cipher, reinforced with the RSA cryptography algorithm. For each letter in the alphabet, there is more than one point on Cartesian coordinate system and in the calculation of these points random chosen values are used. Values used to calculate alphabet and start index of alphabet are send to receiver using RSA algorithm with cipher text. So, with multiple security stages the proposed method is a strong encryption method that is difficult to decode. © ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2020.