Journal of Cyber Security and Mobility,
Journal Year:
2024,
Volume and Issue:
unknown, P. 193 - 214
Published: Feb. 12, 2024
Quantum
Key
Distribution
(QKD)
provides
unconditional
peer-to-peer
security
based
on
the
principles
of
quantum
physics.
By
utilizing
relay
nodes,
QKD
can
be
extended
over
longer
distances.
However,
introduction
nodes
brings
both
and
communication
success
rates
issues.
To
tackle
those
issues
we
propose
an
enhanced
multi-path
scheme.
The
key
features
our
proposal
are
as
follows:
1.
taking
reliability
one
algorithm
inputs,making
scheme
more
suitable
for
partially
trusted
(PTQKD)
networks.
2.
using
Multi-Segment
Multi-Path
approach
increases
difficulty
attackers
to
obtain
complete
information
improves
PTQKD.
3.
adaptive
routing
generates
a
sufficient
number
diverse
paths
node
contribution
rate,
freshness,
reliability.
We
conducted
theoretical
analysis
algorithm,and
simulation
results
PTQKD
demonstrate
that
method
outperforms
traditional
methods
in
terms
transmission
rate.
This
advancement
has
potential
enhance
adoption
IET Quantum Communication,
Journal Year:
2023,
Volume and Issue:
4(4), P. 147 - 166
Published: Oct. 22, 2023
Abstract
The
quantum
internet
is
a
cutting‐edge
paradigm
that
uses
the
unique
characteristics
of
technology
to
radically
alter
communication
networks.
This
new
network
type
expected
collaborate
with
6G
networks,
creating
synergy
will
fundamentally
how
we
communicate,
engage,
and
trade
information.
improved
security,
increased
speed,
capacity
lead
emergence
broad
variety
applications
services.
current
state
its
integration
networks
are
summarised
in
this
study,
an
emphasis
on
key
challenges
untapped
possibilities.
main
goal
get
knowledge
about
might
impact
future
several
economic
societal
sectors.
Photonics Research,
Journal Year:
2023,
Volume and Issue:
11(6), P. 1007 - 1007
Published: April 7, 2023
Quantum
key
distribution
(QKD)
is
nowadays
a
well-established
method
for
generating
secret
keys
at
distance
in
an
information-theoretically
secure
way,
as
the
secrecy
of
QKD
relies
on
laws
quantum
physics
and
not
computational
complexity.
In
order
to
industrialize
QKD,
low-cost,
mass-manufactured,
practical
setups
are
required.
Hence,
photonic
electronic
integration
sender’s
receiver’s
respective
components
currently
spotlight.
Here
we
present
high-speed
(2.5
GHz)
integrated
setup
featuring
transmitter
chip
silicon
photonics
allowing
modulation
accurate
state
preparation,
well
polarization-independent
low-loss
receiver
aluminum
borosilicate
glass
fabricated
by
femtosecond
laser
micromachining
technique.
Our
system
achieves
raw
bit
error
rates,
rates
equivalent
much
more
complex
state-of-the-art
based
discrete
[
Boaron
A.
et
al.
,
Phys.
Rev.
Lett.
121
190502
(
2018
)
].
Chip,
Journal Year:
2023,
Volume and Issue:
2(1), P. 100039 - 100039
Published: Feb. 16, 2023
Silicon-based
polarization-encoding
quantum
key
distribution
(QKD)
has
been
widely
studied,
owing
to
its
low
cost
and
robustness.
However,
prior
studies
have
utilized
off-chip
devices
demodulate
the
states
or
perform
polarization
compensation,
given
difficulty
of
fabricating
polarized
independent
components
on
chip.
In
this
paper
we
propose
a
fully
chip-based
decoder
for
QKD.
The
chip
realizes
state
analyzer
compensates
BB84
protocol
without
requiring
additional
hardware.
It
is
based
polarization-to-path
conversion
method
that
uses
splitter-rotator.
was
fabricated
using
standard
silicon
photonics
foundry;
it
compact
design
suitable
mass
production.
experimental
stability
test,
an
average
bit
error
rate
0.59%
achieved
through
continuous
operation
10
h
any
feedback.
Furthermore,
developed
feedback
algorithm,
enabled
automatic
compensation
fiber
drift,
which
emulated
by
random
scrambler.
case
QKD
demonstration,
obtained
finite-key
secret
240
bps
over
spool
100
km.
This
study
represents
important
step
toward
integrated,
practical,
large-scale
deployment
systems.
Photonics Research,
Journal Year:
2023,
Volume and Issue:
11(8), P. 1364 - 1364
Published: May 17, 2023
Integrated
photonics
provides
a
promising
platform
for
quantum
key
distribution
(QKD)
system
in
terms
of
miniaturization,
robustness,
and
scalability.
Tremendous
QKD
works
based
on
integrated
have
been
reported.
Nonetheless,
most
current
chip-based
implementations
require
additional
off-chip
hardware
to
demodulate
states
or
perform
auxiliary
tasks
such
as
time
synchronization
polarization
basis
tracking.
Here,
we
report
demonstration
resource-efficient
BB84
with
silicon-based
encoder
decoder.
In
our
scheme,
the
compensation
are
implemented
relying
preparation
measurement
generated
by
on-chip
devices;
thus,
need
no
hardware.
The
experimental
tests
show
that
scheme
is
highly
stable
low
intrinsic
bit
error
rate
0.50
%
±0.02
6
h
continuous
run.
Furthermore,
over
commercial
fiber
channel
up
150
km,
enables
realization
secure
at
866
bit/s.
Our
paves
way
low-cost,
wafer-scale
manufactured
system.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Jan. 21, 2023
We
present
a
high-dimensional
measurement
device-independent
(MDI)
quantum
key
distribution
(QKD)
protocol
employing
biphotons
to
encode
information.
exploit
the
as
qutrits
improve
tolerance
error
rate.
Qutrits
have
larger
system;
hence
they
carry
more
bits
of
classical
information
and
improved
robustness
against
eavesdropping
compared
qubits.
Notably,
our
proposed
is
independent
devices,
thus
eliminating
possibility
side-channel
attacks.
Also,
we
employ
finite
analysis
approach
study
performance
under
realistic
conditions
where
resources
are
used.
Furthermore,
simulated
secret
rate
for
in
terms
transmission
distance
different
fixed
amounts
signals.
The
results
prove
that
this
achieves
considerable
moderate
90
km
by
using
[Formula:
see
text]
Moreover,
expected
was
examine
protocol's
at
various
intrinsic
values,
caused
misalignment
instability
due
optical
system.
These
show
reasonable
rates
achieved
with
minimum
data
size
about
signals
which
realizable
current
technology.
Thus,
implementing
MDI-QKD
while
allowing
errors
system
makes
giant
step
forward
toward
realizing
practical
QKD
implementations.
IET Quantum Communication,
Journal Year:
2024,
Volume and Issue:
5(3), P. 202 - 231
Published: April 16, 2024
Abstract
Artificial
intelligence
(AI)
and
classical
machine
learning
(ML)
techniques
have
revolutionised
numerous
fields,
including
quantum
communication.
Quantum
communication
technologies
rely
heavily
on
resources,
which
can
be
challenging
to
produce,
control,
maintain
effectively
ensure
optimum
performance.
ML
has
recently
been
applied
networks
mitigate
noise‐induced
errors
analyse
protocols.
The
authors
systematically
review
state‐of‐the‐art
applications
advance
theoretical
experimental
central
protocols,
specifically
key
distribution,
teleportation,
secret
sharing,
networks.
Specifically,
the
survey
progress
how
and,
more
broadly,
AI
optimise
various
components
of
a
system.
This
resulted
in
ultra‐secure
protocols
with
optimised
generation
rates
as
well
efficient
robust
Integrating
opens
intriguing
prospects
for
securing
facilitating
reliable
large‐scale
between
multiple
parties.
Most
significantly,
potential
gradually
develop
maturity
future
internet.
Optica Quantum,
Journal Year:
2024,
Volume and Issue:
2(6), P. 428 - 428
Published: Aug. 19, 2024
Quantum
key
distribution
(QKD)
is
a
prominent
application
in
the
field
of
quantum
cryptography,
providing
information-theoretic
security
for
secret
exchange.
The
implementation
QKD
systems
on
photonic
integrated
circuits
(PICs)
can
reduce
size
and
cost
such
facilitate
their
deployment
practical
infrastructures.
To
this
end,
continuous-variable
(CV)
are
particularly
well-suited
as
they
do
not
require
single-photon
detectors,
whose
integration
presently
challenging.
Here
we
present
CV-QKD
receiver
based
silicon
PIC
capable
performing
balanced
detection.
We
characterize
its
performance
laboratory
setup
using
frequency
multiplexed
pilot
scheme
with
specifically
designed
data
processing
allowing
high
modulation
rates.
obtained
excess
noise
values
compatible
asymptotic
rates
2.4
Mbit/s
220
kbit/s
at
an
emulated
distance
10
km
23
km,
respectively.
These
results
demonstrate
potential
technology
toward
fully
devices
suitable
high-speed,
metropolitan-distance
secure
communication.