A Novel Stream Cipher Based on Nondeterministic Finite Automata

Khaleel, Ghassan; Turaev, Sherzod; Zhukabayeva, Tamara

doi:10.2991/itsmssm-16.2016.87

Cited by 5 publications

(8 citation statements)

References 8 publications

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“…The device used is Lenovo Notebook E430 having Intel(R) Core(TM) i5-3230M CPU 2.6 GHz with 4 GB RAM under 64bit Operating System Windows 10. From the results gained from [11] and this research, we can see that the newly introduced cryptosystem is having less encryption and decryption time due to the use of the parallelism. It also can be identified that the decryption time is significantly less because the use of sequential search has been eliminated and as a result, new key matrices have been constructed.…”

Section: Comparisonmentioning

confidence: 71%

“…New variants of stream and block ciphers based on sequential and parallel finite automata systems, which are closely related to permutation matrix-based cryptosystems, have been thoroughly studied in [11][12][13][14][15][16][17]. Not surprisingly, these systems use transition matrices of finite automata as secrete keys in encryption and decryption algorithms.…”

Section: Related Workmentioning

confidence: 99%

“…To compare this work with the previous research done by [11], the best way to compare is through the comparison between the performance and the security analysis. As a reference, character distribution and performance test of encryption and decryption algorithms of [11] have been copied here.…”

Section: Comparisonmentioning

confidence: 99%

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New Cryptosystem Based-on Permutation Matrix

Karimnia¹,

Khaleel²,

Turaev³

2018

IJPCC

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Cryptography is defined as a technique of transmitting information in a secretive manner so that only authorized people are able to read and process it. The main aim of cryptography is to make sure the message has been received by the receiver in a secure manner, and not being understood by anyone else but the receiver. Although there exist several different cryptosystems, the choice of the best algorithm is the main concern of the researches. In this paper, a new cryptography system based on matrix permutation has been introduced. A permutation matrix is an nï‚´ n matrix which is obtained by permuting its rows and columns according to some permutations of the numbers 0 to n. In this paper, encryption and decryption methodologies have been proposed based on permutation matrices. The algorithms are based on the random selection of the permutation matrix - known as key matrix - entries. The main objective of this research is to evaluate the security and the performance of the proposed cryptosystem as well as to promote the confusion and diffusion.

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Section: Comparisonmentioning

confidence: 71%

Section: Related Workmentioning

confidence: 99%

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New Cryptosystem Based-on Permutation Matrix

Karimnia¹,

Khaleel²,

Turaev³

2018

IJPCC

Self Cite

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“…Further improvements and extensions of Dӧmӧsi's cryptosystem can be found in [8][9][10][11][12][13][14]. To overcome the backtracking drawback, and improve the performance of Dӧmӧsi's cryptosystem, G. Khaleel et.…”

Section: Modified Dömösi's Cryptosystemmentioning

confidence: 99%

“…Second, it selects a random signal from 2 finalizing the construction of the block cipher . To estimate the performance of DES, we use DES algorithm based on the crypto++ standard library version 5.6 [10]. The speed measurement was performed on Lenovo Notebook E430 having Intel(R) Core(TM) i5-3230M CPU 2.6 GHz with 4 GB RAM under 64-bit Operating System Windows 10.…”

Section: Fig 4 Operation Stagementioning

confidence: 99%