Mathematics,
Journal Year:
2023,
Volume and Issue:
11(7), P. 1658 - 1658
Published: March 30, 2023
The
visually
secure
image
encryption
scheme
is
an
effective
method,
which
embeds
encrypted
into
a
visual
to
realize
and
secret
transfer.
This
paper
proposes
merging
compression
chaos
scheme.
First,
dictionary
matrix
D
constructed
with
the
plain
by
K-SVD
algorithm,
can
encrypt
while
sparsing.
Second,
improved
Zeraoulia-Sprott
chaotic
map
logistic
are
employed
generate
three
S-Boxes,
used
complete
scrambling,
diffusion,
embedding
operations.
keys
of
this
contain
initial
value
system
D,
significantly
increases
key
space,
correlation,
security.
Simulation
shows
proposed
resist
most
attacks
and,
compared
existing
scheme,
has
larger
higher
better
restoration
quality,
improving
processing
efficiency
IEEE Transactions on Industrial Electronics,
Journal Year:
2023,
Volume and Issue:
71(8), P. 9569 - 9579
Published: Nov. 1, 2023
A
discrete
memristor
is
introduced
into
the
Rulkov
neuron
to
mimic
biological
neuronal
synapse
and
modify
firing
dynamics.
In
memristive
neuron,
chaotic
with
local
amplitude
control
obtained,
where
range
of
bursting
can
be
modified
by
two
independent
controllers.
These
bifurcation
parameters
provide
direct
amplitude/frequency
control.
Furthermore,
offset
boosting-entangled
complex
dynamics
are
captured,
initial
condition
membrane
potential
visit
any
self-reproducing
attractors
even
firing,
indicating
coexistence
homogeneous
heterogeneous
multistabilities.
Consequently,
a
CH32-based
circuit
developed
verify
various
activities.
The
pseudo-random
number
generator
results
explored
based
on
National
Institute
Standards
Technology
showing
its
higher
performance
in
secure
optical
communication,
which
further
proved
seven-core
2-km
communication
setup.
International Journal of Bifurcation and Chaos,
Journal Year:
2023,
Volume and Issue:
33(05)
Published: April 1, 2023
In
this
paper,
we
propose
a
fast
hyperchaotic
image
encryption
scheme
based
on
RSVM
and
step-by-step
scrambling-diffusion.
scheme,
firstly
new
algorithm
named
ring
shrinkage
with
variable
modulo
(RSVM),
which
can
randomly
scramble
the
elements
in
one-dimensional
array,
are
composed
of
row
numbers
or
column
pixel
matrix
to
be
encrypted.
Before
encryption,
use
generate
two
random
arrays
(i.e.
array
[Formula:
see
text]
text]),
each
element
represents
row/column
number
matrix.
Then
rows/columns
scrambled-diffused
according
text].
The
initial
control
parameters
controlled
by
SHA-256
plaintext
pixels,
controls
scrambling-diffusion
process
matrix,
rows
columns,
so
small
changes
pixels
will
lead
great
differences
ciphertext
images.
addition,
overall
time
complexity
is
only
text],
greatly
reduce
cost.
Finally,
experimental
results
extensive
security
analysis
prove
efficiency
feasibility
method.
Chaos An Interdisciplinary Journal of Nonlinear Science,
Journal Year:
2023,
Volume and Issue:
33(11)
Published: Nov. 1, 2023
The
membrane
potential
of
a
neuron
is
mainly
controlled
by
the
gradient
distribution
electromagnetic
field
and
concentration
diversity
between
intracellular
extracellular
ions.
Without
considering
thickness
material
property,
electric
characteristic
cell
described
capacitive
variable
output
voltage
in
an
equivalent
neural
circuit.
flexible
property
enables
controllability
endomembrane
outer
membrane,
properties
can
be
approached
double
membranes
connected
memristor
In
this
work,
two
capacitors
are
used
to
mimic
physical
two-layer
membranes,
inductive
channel
added
A
biophysical
obtained
energy
characteristic,
dynamics,
self-adaption
discussed,
respectively.
Coherence
resonance
mode
selection
adaptive
way
detected
under
noisy
excitation.
average
function
effective
predict
appearance
coherence
resonance.
An
law
proposed
control
parameters,
external
stimulus
explained
theoretical
way.
with
memristive
explains
self-adaptive
mechanism
parameter
changes
transition
from
viewpoint.
Fractal and Fractional,
Journal Year:
2023,
Volume and Issue:
7(8), P. 582 - 582
Published: July 28, 2023
Chaotic
signals
generated
by
chaotic
oscillators
based
on
memory
elements
are
suitable
for
use
in
the
field
of
confidential
communications
because
their
very
good
randomness.
But
often
maximum
Lyapunov
exponent
is
not
high
enough,
so
degree
randomness
enough.
It
can
be
chaos
enhanced
transforming
it
to
fractional
order
using
Caputo
differential
definition.
In
this
paper,
proposed
hyperchaotic
oscillator,
extended
a
fractional-order
form
obtain
chaos-enhanced
memcapacitor
meminductor
system,
which
several
different
styles
and
attractors
found.
The
dynamical
behaviour
system
studied
bifurcation
diagrams,
spectrums
dimensions.
multistability
explored
initial
orbits,
spectral
entropy
complexity
examined.
Finally,
hardware
implementation
given,
demonstrates
effectiveness
system.
This
study
provides
reference
chaos-enhanced.
