Results 31 to 40 of about 6,876 (161)

Image Encryption Using a New Hybrid Chaotic Map and Spiral Transformation

open access: yesEntropy, 2023
Image encryption based on chaotic maps is an important method for ensuring the secure communication of digital multimedia on the Internet. To improve the encryption performance and security of image encryption systems, a new image encryption algorithm is
Mingfang Jiang, Hengfu Yang
doaj   +1 more source

Iterations of tent maps

open access: yes四川大学学报. 自然科学版, 2018
As a basic class of non-linear maps, tent maps is famous for their periodic point problem. And tent maps vertices as the points breaking the monotonicity in iterations have their own rules.
YANG Yu-Chen, CHEN Xing-Wu
doaj  

The Design and FPGA-Based Implementation of a Stream Cipher Based on a Secure Chaotic Generator

open access: yesApplied Sciences, 2021
In this study, with an FPGA-board using VHDL, we designed a secure chaos-based stream cipher (SCbSC), and we evaluated its hardware implementation performance in terms of computational complexity and its security. The fundamental element of the system is
Fethi Dridi   +4 more
doaj   +1 more source

Design of Discretized Tent Map

open access: yesThe Journal of the Korea Contents Association, 2008
To present the design procedure of discretized 8-bit tent map executing the transformation of tent function which is one of the chaotic functions, first, the truth table of discretized tent map was written, and then according to the simplified Boolean algebra equations obtained from the truth table, the discretized map is implemented with the exclusive
Seung-Jae Baek, Jin-Soo Park
openaire   +2 more sources

A CMOS Implementation of the Tent Map for Random Number Generation

open access: yes2021 IEEE 12th Latin America Symposium on Circuits and System (LASCAS), 2021
A new tent map based random number generator (RNG) is designed in TSMC 65 nm CMOS technology. Simulation results verify that the generated random sequences successfully pass the randomness tests in the FIPS-140-2 and NIST 800–22 test suites. Superior to other studies in the literature, our RNG satisfies the randomness tests without post processing ...
Muhammed Mustafa Kizmaz, Salih Ergün
openaire   +2 more sources

On the mass center of the tent map

open access: yes, 2008
15 ...
Chen, Kuo-Chang, Dong, Xun
openaire   +2 more sources

Population dynamics and spatial structure of human-biting mosquitoes, inside and outside of houses, in the Chockwe irrigation scheme, southern Mozambique

open access: yesGeospatial Health, 2013
Focal control of malaria vectors, a potentially cost-effective alternative to conventional control, requires a spatio-temporal understanding of the mosquitoes.
J. Derek Charlwood   +5 more
doaj   +1 more source

A cognitive account of belief: a tentative road map [PDF]

open access: yesFrontiers in Psychology, 2015
Over the past decades, delusions have become the subject of growing and productive research spanning clinical and cognitive neurosciences. Despite this, the nature of belief, which underpins the construct of delusions, has received little formal investigation.
Michael H Connors   +5 more
openaire   +3 more sources

Design and Enhancing Security Performance of Image Cryptography System Based on Fixed Point Chaotic Maps Stream Ciphers in FPGA

open access: yesمجلة بغداد للعلوم
Within this document, a novel system for image cryptography design utilizing fixed-point stream cipher chaotic maps is proposed. The system consists of fixed chaotic maps combined with generated 32-bit Pseudo Number (PN) all implemented using Field ...
Ahmed Amir Salih   +2 more
doaj   +1 more source

Itineraries for inverse limits of tent maps: A backward view [PDF]

open access: yesTopology and its Applications, 2017
To appear in Topol. Appl. Author accepted manuscript.
Department of Mathematics, University of Florida Little Hall, Gainesville, FL 32611-8105, USA ( host institution )   +3 more
openaire   +4 more sources

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