A 240 Gb/s dynamic one-time-pad THz-coherent PON seamless integrated physical layer encryption scheme based on double chaotic models assistance
Optics Express,
Journal Year:
2024,
Volume and Issue:
32(25), P. 45241 - 45241
Published: Nov. 14, 2024
In
order
to
ensure
the
data
security
of
a
fiber-terahertz
seamless
integrated
communication
system,
this
paper
proposes
dynamic
one-time-pad
(OTP)
terahertz
(THz)
-coherent
passive
optical
network
(PON)
physical
layer
encryption
scheme
based
on
double
chaotic
models,
which
utilizes
ultra-high
sensitivity
model
realize
real
sense
OTP
in
digital
domain.
The
sequence
generated
by
auxiliary
chaos
is
mapped
selection
factors
control
main
system
so
as
carry
out
one-time
keys,
and
obtained
interleaving
regenerated
encrypt
original
data.
It
worth
noting
that
key
corresponding
each
encrypted
different,
can
paper,
we
successfully
demonstrate
transmission
THz-coherent
PON
frequency
combs
(OFC)
30
GBaud
dual
polarization
16
quadrature
amplitude
modulation
(DP
16QAM)
signals
are
demodulated
over
span
25
km
standard
single-mode
fiber
(SSMF)
10
m
wireless
link
at
130
GHz
150
GHz.
number
updates
reaches
8
×
12
.
Compared
with
typical
three-dimensional
Lorentz
model,
initial
value
2
times,
more
than
E-14,
space
up
228
performance
different
baud
rates
verified
experiments,
feasibility
further
demonstrated.
experimental
results
show
has
great
application
potential
future
fiber-THz
secure
communication.
Language: Английский
A covert chaotic encryption scheme based on compressive sensing in W-band RoF system
Optics Express,
Journal Year:
2024,
Volume and Issue:
33(1), P. 992 - 992
Published: Dec. 18, 2024
This
paper
proposes
a
covert
chaotic
encryption
(CCE)
scheme
based
on
compressive
sensing
(CS).
The
sequences
used
are
generated
by
six-dimensional
hyper-chaotic
D-system,
where
the
y
sequence
is
utilized
for
index
sparse
block
(CISB),
x
generating
CS
measurement
matrix
effectively,
w,
s,
and
u
employed
variable-parameter
iterative
Arnold
transformations,
z
dual-random
least
significant
bit
(LSB)
scrambling
embedding.
combination
of
these
technologies
enabled
to
achieve
multi-domain,
multi-dimensional,
ultra-high-security
multimedia
image
data.
allows
4
Gb/s
W-band
orthogonal
frequency
division
multiplexing
(OFDM)
signal
transmission
over
10
m
in
radio-over-fiber
(RoF)
system.
When
input
optical
power
(IOP)
exceeds
1
dBm,
error
rate
(BER)
system
lower
than
forward
correction
(FEC)
threshold
3.8×10-3.
IOP
6
mean
structural
similarity
(MSSIM)
between
decrypted
original
reaches
0.96,
indicating
good
reconstruction
quality.
key
space
10160,
effectively
resisting
various
attacks.
Compared
schemes
without
CS,
data
volume
reduced
75%.
RoF
demonstrates
great
potential
future
high-capacity,
high-security
wireless
systems.
Language: Английский