Periodic characteristics of output feedback encryption mode
Abstract
We investigate periodic characteristics of sequence of output blocks in the output feedback encryption mode. The model of random homogeneous substitution is used for an abstract description of this formation. This property is directly related to the periodic properties of output feedback encryption mode, since it characterizes the probabilistic distribution of output blocks with certain period appearance, provided that the assumption is made that the properties of the block symmetric cipher are consistent with certain properties of the random substitution. Also in the work specific practical tasks are solved, namely recommendations are being developed for the application of the outbound feedback on the encryption threshold, certain requirements and limitations are justified.
Downloads
References
Tronin S.N. Introduction to the theory of groups / S.N. Tronin. – Kazan: Kazan State University, 2006. – 100 p.
Alexandrov P.S. Introduction to the theory of groups / P.S. Alexandrov. – Moskow: Nauka, 1980. – 145 p.
Menezes Alfred J. Handbook of Applied Cryptography / Alfred J. Menezes, Paul C. van Oorschot, Scott A. Vanstone. – CRC Press, 1997. – 794 р.
Dolgov V.I. Analysis of cyclic properties of block ciphers / V.I. Dolgov, I.V. Lisitskaya, V.I. Ruzhentsev // Applied radio electronics . – 2007. – Vol.6. – №2. – P. 257–263.
Kuznetsov A.A. Linear properties of block symmetric ciphers presented to the Ukrainian competition/ A.A. Kuznetsov, I.V. Lisitskaya, S.A. Isaev // Applied radio electronics. – 2001. – Vol.
10. – № 2. – P. 135–140.
Soroka L.S. Investigation of the differential properties of block-symmetric ciphers / L.S. Soroka, A.A. Kuznetsov, I.V. Moskovchenko, S.A. Isaev // Information Processing Systems. – 2010. – Vol. 6 (87). – P. 286–294.
Dolgov V.I. Block symmetric ciphers are random substitutions. Combinatorial indices / V.I. Dolgov, M.Yu. Rodinko // Applied radio electronics. – 2013. – Vol.12. – № 2. – P. 236–239.
Kuznetsov О.О. Analysis of collision properties of Galois Message Authentication Code with selective Counter / О.О. Kuznetsov, D.V. Ivanenko, Ie.P. Kolovanova // Bulletin of V. Karazin Kharkiv National University. Series “Mathematical Modelling. Information Technology. Automated Control Systems”. – 2014. – № 1097. – Issue 23. – P. 55–71.
Information Technology. Cryptographic protection of information. Symmetric block algorithm transformation: DSTU. – Kyiv: Ministry of Economic Development of Ukraine, 2015. – 238 p.
Gorbenko I.D. Development of a new symmetric block cipher: Report on the first phase of research "Algorithm" (intermediate) / I.D. Gorbenko : in 4 t. – T. 4. – Kharkiv: JSC «IIT», 2014. – 304p.