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 Computer-Aided Design of Integrated Circuits and Systems,
Journal Year:
2023,
Volume and Issue:
42(12), P. 4948 - 4958
Published: June 20, 2023
Memristors
have
recently
demonstrated
great
promise
in
constructing
memristive
neural
networks
with
complex
dynamics.
This
article
proposes
a
Hopfield
network
three
coupling
synaptic
weights.
The
dynamical
behaviors
of
the
triple-memristor
(TM-HNN),
which
never
been
observed
previous
Hopfield-type
networks,
include
space
multistructure
chaotic
attractors
and
initial-offset
coexisting
behaviors.
Bifurcation
diagrams,
Lyapunov
exponents,
phase
portraits,
Poincaré
maps,
basins
attraction
are
used
to
reveal
examine
specific
Theoretical
analysis
numerical
simulation
show
that
number
can
be
adjusted
by
changing
control
parameters
memristors,
position
changed
switching
initial
states
memristors.
Extreme
multistability
emerges
as
result
TM-HNN's
unique
behaviors,
making
it
more
suitable
for
applications
based
on
chaos.
Moreover,
digital
hardware
platform
is
developed
well
experimentally
demonstrated.
Finally,
we
design
pseudorandom
generator
explore
potential
application
proposed
TM-HNN.
