Periodic characteristics of output feedback encryption mode

Authors

Keywords:

encryption mode, random substitution, periodic characteristics of output blocks, output feedback

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.

Author Biographies

  • Alexandr Kuznetsov, V. N. Karazin Kharkiv National University

    Doctor of Sciences (Engineering), Full Professor, Academician of the Academy of Applied Radioelectronics Sciences

  • Ievgeniia Kolovanova, V. N. Karazin Kharkiv National University, Department of information systems and technologies security

    Ph.D., lecturer of the department

  • Tetiana Kuznetsova, V. N. Karazin Kharkiv National University

    Researcher of the department, Department of Computer Science

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Published

2017-12-21

Issue

No. 3 (2017)

Section

Статті

How to Cite

Periodic characteristics of output feedback encryption mode. (2017). Computer Science and Cybersecurity, 3, 4-21. https://periodicals.karazin.ua/cscs/article/view/10001

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