Nested Levels of Hybrid Cryptographical Technique for Secure Information Exchange

Abstract

Data security is a very important part of data transmission over insecure channels connected through high-speed networks. Due to COVID-19, the use of data transmission over insecure channels has increased in an exponential manner. Hybrid cryptography provides a better solution than a single type of cryptographical technique. In this paper, nested levels of hybrid cryptographical techniques are investigated with the help of Deoxyribonucleic Acid (DNA) and Paillier cryptographical techniques. In the first level, information will be encrypted by DNA and at the second level, the ciphertext of DNA will be encrypted by Paillier cryptography. At the decryption time, firstly Paillier cryptography will be processed, and then DAN cryptography will be processed to get the original text. The proposed algorithm follows the concept of Last Encryption First Decryption (LEFD) at the time of decryption. The computed results are depicted in terms of tables and graphs.

Development of a method for synthesizing an information-analytical system for assessing the level of information transmission channels protection

“…Thus, the voltage drop in the information transmission channel Δu will be higher than the threshold value when the information transmission voltage u changes in the presence of data leakage. This conclusion is confirmed by the results obtained (calculations using formula (6) and data in Fig. 2), which allows to assert the presence of a data leak in the information transmission channel.…”

“…The identified relationship between the control signs characterizes the presence of a data leak in the information transmission channel. This conclusion is confirmed by the result of applying formula (6) and condition (5) of the proposed method. The obtained result can be explained physically: the presence of data leakage in the information transmission channel leads to a change (decrease) in the voltage (or power) of the information channel.…”

“…The conducted analysis [2,3,5] shows that expert methods and the method based on the calculation of the correlation between the characteristics are most often used to determine the dependence between the characteristics [5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

“…The work [6] proposes the use of hybrid cryptography to ensure the required level of data transmission reliability. This method allows to hide information in the event of its possible leakage.…”

“…But no attention has been paid to the issues of protecting information from unauthorized access. basis of generated hypotheses about the presence of dependencies between features with an association quantifier [6]. In this study, by binary association let's understand the relationship between two characteristics А i and А j (i¹j) of a data leakage channel presence.…”