IEEE Access,
Год журнала:
2024,
Номер
12, С. 102718 - 102744
Опубликована: Янв. 1, 2024
This
work
introduces
a
novel
image
encryption
algorithm
specifically
designed
for
the
protection
of
color
medical
images,
particularly
crucial
in
era
cloud
storage,
where
security
and
privacy
are
paramount.
The
initial
phase
process
leverages
substantial
array
Fibonacci
Q-matrices
to
manipulate
data
intricately.
Following
this,
unique
Substitution
box
(S-box)
transformation,
developed
Galois
field
(28),
is
applied
each
RGB
channels,
further
enhancing
layers.
final
employs
an
key
generated
from
hyperchaotic
system
differential
equations
that
models
memristive
coupled
neural
network,
offering
high
degree
unpredictability
resistance
attacks.
Performance
metrics
show
[Peak
Signal-to-Noise
Ratio
(PSNR)
8.21
dB,
Mean
Absolute
Error
(MAE)
81.72,
≈
0
Pixel
Cross-Correlation
(PCC)],
resistivity
occlusion
noise
attacks,
enormous
space
26112,
with
savvy
parallel
processing
techniques,
rate
16.65
Mbps.
integration
this
into
storage
systems
significant
importance,
as
it
ensures
secure
confidential
handling
sensitive
addressing
growing
concerns
about
breaches
unauthorized
access
healthcare
sector.
Compared
previous
provides
large
26112
small
time
per
around
0.1
second
encrypting
16
images
at
once.
Thus,
approach
suitable
imaging
such
Computed
Tomography
(CT)
scans
generate
multiple
tissues
diagnosis
patient.
IEEE Internet of Things Journal,
Год журнала:
2024,
Номер
11(12), С. 21807 - 21815
Опубликована: Март 12, 2024
Chaos
systems
find
extensive
applications
in
cryptography
and
pseudorandom
number
generation
due
to
their
ability
generate
pseudo-random
signals.
This
paper
focuses
on
enhancing
the
complexity
of
chaotic
by
introducing
memristor,
a
nonlinear
component.
We
propose
novel
map
called
2D
memristive
Cubic
(2D-MCM),
which
integrates
memristor
with
create
discrete
mapping.
The
2D-MCM
exhibits
rich
dynamical
behavior
broad
parameter
space.
Notably,
displays
boosting
bifurcation
behavior.
As
control
parameters
increase,
demonstrates
an
expanded
range
values,
indicating
its
larger
sequences.
To
validate
performance,
we
establish
hardware
platform
physically
capture
attractors
2D-MCM.
verify
performance
generating
sequences,
designed
video
encryption
algorithm
based
selectively
encrypts
specific
areas
within
video,
correlation
coefficients
encrypted
horizontal,
vertical,
diagonal
directions
being
0.0002,
-0.0005,
0.0004,
respectively.
Through
simulation
experiments
security
analysis,
demonstrate
that
performs
well
tasks.
Mathematics,
Год журнала:
2024,
Номер
12(24), С. 3917 - 3917
Опубликована: Дек. 12, 2024
Chaos-based
encryption
is
promising
for
safeguarding
digital
images.
Nonetheless,
existing
chaos-based
algorithms
still
exhibit
certain
shortcomings.
Given
this,
we
propose
a
novel
multi-channel
image
algorithm
that
leverages
pixel
reorganization
and
hyperchaotic
maps
(MIEA-PRHM).
Our
MIEA-PRHM
employs
two
to
jointly
generate
chaotic
sequences,
ensuring
larger
key
space
better
randomness.
During
the
process,
first
convert
input
images
into
fused
matrices
through
reorganization.
Then,
apply
rounds
of
scrambling
diffusion
operations,
coupled
with
one
round
substitution
high
4-bit
matrix.
For
low
matrix,
conduct
operations.
Extensive
experiments
comparisons
demonstrate
outperforms
many
recent
in
various
aspects,
especially
efficiency.
