Romanian Journal of Information Technology and Automatic Control / Vol. 33, No. 4, 2023

New mode of operation inspired by the braid of long hair

Hana ALI-PACHA, Adda Belkacem ALI-PACHA, Naima HADJ-SAID

Abstract:

In cryptography, a mode of operation is the way of processing plaintext and encrypted text blocks within a block cipher algorithm, or it is the presentation of a method of chaining blocks in a block cipher. Several models exist with their strengths, some are more vulnerable than others, and some combine authentication and security concepts. In this paper, a new mode of operation is proposed, inspired by the braid of long hair which we call mode CBLCH (Cipher Braided Long Hair Chaining). The HILL cipher will be used to validate it and to compare it with ECB (Electronic Code-Book: code dictionary) and CBC mode (Cipher Block Chaining: sequence of blocks) by the influence of a pixel change on the plaint-image and the encrypted image.

Keywords:
Cryptography, Operators Modes, Electronic Code Book, Cipher Block Chaining, Logistic Map, Hill cipher.

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CITE THIS PAPER AS:
Hana ALI-PACHA, Adda Belkacem ALI-PACHA, Naima HADJ-SAID, "New mode of operation inspired by the braid of long hair", Romanian Journal of Information Technology and Automatic Control, ISSN 1220-1758, vol. 33(4), pp. 21-32, 2023. https://doi.org/10.33436/v33i4y202302