Results 31 to 40 of about 132,559 (295)

On the Difficulty of Constructing Cryptographically Strong Substitution Boxes

J. Univers. Comput. Sci., 1996
JUCS - Journal of Universal Computer Science Volume Nr.
Zhang,Xian-Mo, Zheng,Yuliang
openaire   +3 more sources

Designing S-Box Using Tent-Sine Chaotic System While Combining the Traits of Tent and Sine Map

IEEE Access, 2023
Secure exchange of sensitive information between different entities is a serious challenge in today’s environment. Therefore, various cryptosystems have been created specifically for this purpose. Various operations are used in these cryptosystems.
Annas Wasim Malik, Amjad Hussain Zahid, David Samuel Bhatti, Hyeon Jeong Kim, Ki-Il Kim   +4 more
doaj   +1 more source

Stochastic Fractal Search Algorithm improved with Opposition-Based Learning for solving the substitution box design problem

, 2021
Stochastic Fractal Search Algorithm improved with Opposition-Based Learning for solving the substitution box design ...
Francisco Gonzalez Molina (10804170)
core   +1 more source

A Novel Construction of Efficient Substitution-Boxes Using Cubic Fractional Transformation

Entropy, 2019
A symmetric block cipher employing a substitution–permutation duo is an effective technique for the provision of information security. For substitution, modern block ciphers use one or more substitution boxes (S-Boxes).
Amjad Hussain Zahid, Muhammad Junaid Arshad, Musheer Ahmad   +2 more
doaj   +1 more source

A Novel Image Encryption Scheme Based on Elliptic Curves over Finite Rings

Entropy, 2022
Image encryption based on elliptic curves (ECs) is emerging as a new trend in cryptography because it provides high security with a relatively smaller key size when compared with well-known cryptosystems.
Umar Hayat, Ikram Ullah, Naveed Ahmed Azam, Sumaira Azhar   +3 more
doaj   +1 more source

Dynamic S-Box Design Using a Novel Square Polynomial Transformation and Permutation

IEEE Access, 2021
New era ciphers employ substitution boxes (S-boxes) which assist in the provision of security for the plaintext in the encryption phase and transforming the ciphertext on the receiver side into original plaintext in the decryption phase.
Amjad Hussain Zahid, Hamza Rashid, Mian Muhammad Umar Shaban, Soban Ahmad, Ehtezaz Ahmed, Muhammad Tallal Amjad, Muhammad Azfar Tariq Baig, Muhammad Junaid Arshad, Muhammad Nadeem Tariq, Muhammad Waseem Tariq, Muhammad Ayaz Zafar, Abdul Basit   +11 more
doaj   +1 more source

New combination of simple additive and entropy weighting criteria for the selection of best substitution box

, 2021
Substitution boxes (S-boxes) are among the most widely recognized and fundamental component of most modern block ciphers. This is on the grounds that they can give a cipher fortifying properties to oppose known and possible cryptanalytic assaults.
Ishaque, Iqraa, Hussain, Iqtadard, Khan, Majida, Haj Ismail, Abd Al Karimb   +3 more
core   +1 more source

Bit-level image encryption algorithm based on random-time S-Box substitution

, 2022
To solve the shortcomings of traditional cryptography such as 3DES, AES and SM4 in encrypting multimedia information, we proposed a bit-level image encryption algorithm based on chaos and S-Box. First, we constructed a 3D discrete memristor-based chaotic
Mengdi Zhao, Mengchen Wang, Hongjun Liu
core   +1 more source

Improved 2D Discrete Hyperchaos Mapping with Complex Behaviour and Algebraic Structure for Strong S-Boxes Generation

Complexity, 2020
This paper proposes to present a novel method of generating cryptographic dynamic substitution-boxes, which makes use of the combined effect of discrete hyperchaos mapping and algebraic group theory.
Musheer Ahmad, Eesa Al-Solami
doaj   +1 more source

Population based Metaheuristics supported by Opposition-based learning for solving the substitution box design problem

, 2022
Source code of three population metaheuristics supported by opposition-based learning to solve the substitution box design problem.
Francisco Gonzalez Molina (10804170)
core   +1 more source