scholarly journals A Matrix PRNG with S-Box Output Filtering

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
Rafael Alvarez ◽  
Antonio Zamora
Keyword(s):  
High Performance ◽  
Triangular Matrix ◽  
Statistical Characteristics ◽  
Pseudorandom Number ◽  
Pseudorandom Number Generator ◽  
Number Generator ◽  
Upper Triangular Matrix ◽  
Output Filter ◽  
Extraction Mechanisms ◽  
Bitwise Operations

We describe a modification to a previously published pseudorandom number generator improving security while maintaining high performance. The proposed generator is based on the powers of a word-packed block upper triangular matrix and it is designed to be fast and easy to implement in software since it mainly involves bitwise operations between machine registers and, in our tests, it presents excellent security and statistical characteristics. The modifications include a new, key-derived s-box based nonlinear output filter and improved seeding and extraction mechanisms. This output filter can also be applied to other generators.

scholarly journals Pseudorandom Number Generator Based on Three Kinds of Four-Wing Memristive Hyperchaotic System and Its Application in Image Encryption

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Xi Chen ◽  
Shuai Qian ◽  
Fei Yu ◽  
Zinan Zhang ◽  
Hui Shen ◽  
...  
Keyword(s):  
Image Encryption ◽  
Secure Communication ◽  
Encryption Algorithm ◽  
Statistical Characteristics ◽  
Pseudorandom Number ◽  
Pseudorandom Number Generator ◽  
Hyperchaotic System ◽  
Number Generator ◽  
Encrypted Image ◽  
Different Dimensions

In this paper, we propose a method to design the pseudorandom number generator (PRNG) using three kinds of four-wing memristive hyperchaotic systems (FWMHSs) with different dimensions as multientropy sources. The principle of this method is to obtain pseudorandom numbers with good randomness by coupling XOR operation on the three kinds of FWMHSs with different dimensions. In order to prove its potential application in secure communication, the security of PRNG based on this scheme is analyzed from the perspective of cryptography. In addition, PRNG has passed the NIST 800.22 and ENT test, which shows that PRNG has good statistical characteristics. Finally, an image encryption algorithm based on PRNG is adopted. In the encryption algorithm, the optimized Arnold matrix scrambling method and the diffusion processing based on XOR are used to obtain the final encrypted image. Through the evaluation of encryption performance, it is concluded that there is no direct relationship between the pristine image and encrypted image. The results show that the proposed image encryption scheme has good statistical output characteristics and security performance in line with cryptography.

scholarly journals Encryption of pseudorandom number generator logic circuits

2021 ◽  
Vol 190 ◽  
pp. 370-376
Author(s):  
Mikhail Ivanov ◽  
Iliya Chugunkov ◽  
Bogdana Kliuchnikova ◽  
Evgenii Salikov
Keyword(s):  
Logic Circuits ◽  
Pseudorandom Number ◽  
Pseudorandom Number Generator ◽  
Number Generator

scholarly journals Chaos-Based Bitwise Dynamical Pseudorandom Number Generator On FPGA

2019 ◽  
Vol 68 (1) ◽  
pp. 291-293 ◽  
Author(s):  
Miguel Garcia-Bosque ◽  
Adrian Perez-Resa ◽  
Carlos Sanchez-Azqueta ◽  
Concepcion Aldea ◽  
Santiago Celma
Keyword(s):  
Pseudorandom Number ◽  
Pseudorandom Number Generator ◽  
Number Generator
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