Semiquantum private comparison based on Bell states without quantum measurements from the classical user
Mao-Jie Geng,
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Xia Li,
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Tian-Yu Ye
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et al.
Laser Physics Letters,
Journal Year:
2024,
Volume and Issue:
21(10), P. 105205 - 105205
Published: Sept. 4, 2024
Abstract
In
this
paper,
we
propose
a
novel
semiquantum
private
comparison
(SQPC)
protocol
based
on
Bell
states,
which
enables
one
quantum
user
and
classical
to
compare
the
equality
of
their
inputs
with
help
semi-honest
third
party
(TP).
TP
is
assumed
be
in
sense
that
she
may
take
all
possible
attacks
steal
users’
except
conspiring
anyone.
The
security
analysis
validates
our
can
resist
not
only
from
internal
participants
but
also
an
external
eavesdropper.
Besides,
asks
perform
basis
measurements
does
need
entanglement
swapping;
it
releases
conducting
having
memory.
Moreover,
advantage
over
previous
SQPC
protocols
states
qubit
efficiency.
Finally,
generalized
into
its
counterpart
collective-dephasing
noise
channel.
Language: Английский
Authenticated multi-party quantum key agreement protocol based on cluster states
Laser Physics,
Journal Year:
2024,
Volume and Issue:
34(9), P. 095205 - 095205
Published: Aug. 21, 2024
Abstract
Quantum
key
agreement
(QKA)
is
an
important
cryptographic
primitive
that
plays
a
pivotal
role
in
private
communications.
Authenticated
QKA
QKA.
In
this
paper,
we
propose
authenticated
multiparty
scheme
based
on
4-qubit
cluster
states
entanglement
swapping.
The
divided
into
two
parts,
the
first
part
quantum
identity
authentication
stage,
and
second
stage.
participants
determine
participant
communicating
with
them
claimed
person
through
mutual
authentication,
which
can
avoid
impersonation
attack
of
eavesdropper
Eve.
phase,
adopt
bidirectional
transmission
structure
participation
semi-trusted
third
party,
swapping
property
state,
finally
realized.
Detailed
security
analysis
shows
protocol
resist
variety
internal
external
attacks,
such
as
attack,
entangle-measure
so
on.
Language: Английский
Reflecting attack and improvement of a semi-quantum private comparison protocol with three-particle GHZ-like states
Modern Physics Letters A,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 23, 2024
This
study
focuses
on
semi-quantum
private
comparison
(SQPC)
protocols,
where
participants
with
limited
quantum
capabilities
compare
information
the
help
of
a
third
party
(TP).
Yan
et
al.
introduced
an
SQPC
protocol
in
2021,
but
Li
later
found
it
vulnerable
to
double
controlled
NOT
(CNOT)
operation
attacks
and
proposed
improvements.
However,
this
identifies
different
vulnerability
al.’s
—
reflecting
attack
that
allows
leakage.
Bob
can
intercept
reflect
states,
avoiding
detection
then
use
Alice’s
measurement
outcomes
pre-shared
key
access
her
confidential
information.
The
also
proposes
enhanced
method
secure
protocol.
Language: Английский
A Dynamic Semi-Quantum Private Comparison Protocol for Size Relations
Physica Scripta,
Journal Year:
2024,
Volume and Issue:
99(12), P. 125114 - 125114
Published: Nov. 4, 2024
Abstract
Semi-quantum
private
comparison
allows
multiple
‘classical’
users
who
have
restricted
quantum
capabilities
to
compare
their
data
with
the
assistance
of
a
third
party.
In
this
work,
we
propose
novel
dynamic
semi-quantum
protocol
using
circular
transmission
mode
along
d
-dimensional
single-particle
states.
The
enables
size
relations
among
several
users,
while
party
can
only
determine
relative
sizes
without
accessing
users’
secret
information.
Security
evaluations
demonstrate
that
designed
withstands
typical
external
and
internal
attacks.
Compared
previous
works,
offers
improvements:
first,
it
supports
addition
or
removal
enhancing
applicability
in
practical
scenarios;
second,
eliminates
need
for
pre-shared
keys,
reducing
resource
consumption;
third,
avoids
use
high-dimensional
multi-particle
entangled
states,
thereby
feasibility
implementation.
Therefore,
proposed
may
more
potential
compared
protocols.
Language: Английский