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IS
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r
e
s
2.
T
h
e
w
o
r
ki
ng
s
t
e
ps
of
t
h
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pr
o
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s
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d
r
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s
t
e
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t
i
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l
go
r
i
t
h
m
i
s
s
h
o
w
n
a
s
:
a)
E
v
e
r
y
c
a
r
:
(
c
a
r
_
a
,
c
a
r_b
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c
a
r
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d
Ide
nt
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r
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ID
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r
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ID
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a
r
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ID
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a
r
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a
nd
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a
s
s
W
o
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ds
(P
W
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(P
W
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a
r
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a
,
P
W
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a
r
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P
W
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a
r
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P
W
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r_d)
a
n
d
t
h
e
y
g
e
n
e
ra
t
e
v
a
l
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s
:
(
R
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r
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a
,
R
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a
r
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R
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a
r
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,
R
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a
r
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).
F
o
r
e
n
s
u
ri
ng
s
e
c
ur
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t
y
,
a
l
l
c
a
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s
c
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put
e
t
h
e
f
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l
l
o
w
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n
g:
C
ar
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:
A
a
=
h
[
ID
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a
r_a
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|
P
W
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r_a
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R
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a
r
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a
B
a
=
h
[
ID
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a
r
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|
|
A
a
]
⊕
R
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a
r
_a
C
a
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h
[
P
W
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a
r
_
a
|
|
B
a
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⊕
R
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r_a
R
e
q.
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d
=
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a
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C
a
C
ar
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A
c
=
h
[
ID
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a
r_c
|
|
P
W
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a
r_c
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R
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a
r
_c
B
c
=
h
[
ID
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a
r
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|
|
A
c
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R
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a
r
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C
c
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h
[
P
W
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r
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|
|
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R
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R
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q.
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d
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c
⊕
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c
C
ar
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:
A
b
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h
[
ID
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a
r
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|
|
P
W
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a
r
_b
]
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R
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a
r
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B
b
=
h
[
ID
_
c
a
r
_b
|
|
A
b
]
⊕
R
_c
a
r
_b
C
b
=
h
[
P
W
_c
a
r
_b
|
|
B
b
]
⊕
R
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a
r
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R
e
q.
i
d
=
B
b
⊕
C
b
C
ar
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:
A
d
=
h
[
ID
_c
a
r
_d
|
|
P
W
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a
r
_d
]
⊕
R
_c
a
r
_d
B
d
=
h
[
ID
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a
r
_
d
|
|
A
d
]
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R
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a
r
_
d
C
d
=
h
[
P
W
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a
r
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|
|
B
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R
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a
r
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R
e
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i
d
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B
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⊕
C
d
T
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n
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n
c
r
y
pt
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o
n
o
f
R
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q.
i
d,
w
h
i
c
h
i
s
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r
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s
t
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d
ke
y
,
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s
s
e
nt
t
o
C
a
r
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e
r
v
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r
t
hr
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h
i
n
s
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c
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p
a
t
h.
b)
A
f
t
e
r
r
e
c
e
i
v
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n
g
t
h
e
Ca
r
-
S
e
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v
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r
t
h
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r
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s
t
s
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t
s
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l
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t
s
t
h
e
ID
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n
d
t
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m
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r
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s
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e
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(
ID
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P
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,
T
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a
n
d
ge
n
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ra
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v
a
l
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s
(
R
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).
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o
r
e
n
s
u
r
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ng
s
e
c
u
r
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t
y
,
t
h
e
Ca
r
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e
r
v
e
r
c
o
m
put
e
s
:
N
s
=
h
[
ID
_c
a
r
_S
|
|
T
_S
]
⊕
R
_c
a
r
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K
e
y
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a
r
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=
h
[
ID
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a
r_S
|
|
R
e
q.
i
|
|
N
s
]
⊕
R
_c
a
r
_S
T
h
e
n,
t
h
e
T
P
D
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e
r
v
e
r
S
t
o
r
e
s
t
h
e
r
e
s
ul
t
a
s
[
K
e
y
_c
a
r
_i
].
T
h
e
e
n
c
r
y
pt
e
d
K
e
y
_c
a
r
_i
i
s
s
e
nt
t
o
a
l
l
c
a
r
s
(Ca
r
_
a
,
Ca
r
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,
Ca
r
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,
Ca
r_d)
t
hr
o
ug
h
i
n
s
e
c
ur
e
p
a
t
h.
c)
A
f
t
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r
r
e
c
e
i
v
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n
g
t
h
e
ke
y
s
of
c
a
r
s
(
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r_a
,
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r_b
,
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r_c
,
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r
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,
t
h
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de
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r
y
pt
i
o
n
pr
o
c
e
s
s
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s
do
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e
fo
r
K
e
y
_
c
a
r
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i
.
T
h
e
n
T
P
D
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a
r
S
t
o
r
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s
i
t
s
o
w
n
ke
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r
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a
r
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K
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y
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c
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r
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r
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i
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xp
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a
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t
h
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l
go
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V
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l
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s
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C
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Ser
ve
r
Cho
o
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I
D_
ca
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,
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ca
r
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a
.
Ra
nd
o
m
R
_
ca
r
_
a
.
Co
m
pu
t
es …
A
a
=
h
[
I
D_
ca
r
_
a
|
|
PW
_
ca
r
_
a
]
⊕
R
_
ca
r
_
a
B
a
=
h
[
I
D_
ca
r
_
a
|
|
A
a
]
⊕
R
_
ca
r
_
a
C
a
=
h
[
PW
_
ca
r
_
a
|
|
B
a
]
⊕
R
_
ca
r
_
a
R
eq
.
i =
B
a
⊕
C
a
E
NC
[
R
eq
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i ]
DE
C
[
Key
_
ca
r
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T
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ca
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Sto
r
ag
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Key
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ca
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C
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Cho
o
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I
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ca
r
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S ,
PW
_
ca
r
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T
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S .
Ra
nd
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m
R
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ca
r
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m
pu
t
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N
s
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h
[
I
D_
ca
r
_
S |
|
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⊕
R
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ca
r
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S
Key
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ca
r
_
i =
h
[
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ca
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.
i |
|
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s
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⊕
R
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ca
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S
T
PD_
Ser
v
er
Sto
r
ag
e
(
Ke
y
_
ca
r
_
i)
E
NC
[
Key
_
ca
r
_
i ]
Evaluation Warning : The document was created with Spire.PDF for Python.
In
do
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s
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-
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.
T
h
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a
u
t
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i
c
a
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o
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p
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,
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C
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A
&
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2.
2
.
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L
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v
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:
c
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mu
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di
s
c
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[21
-
2
6]
.
K
n
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ha
r
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c
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Evaluation Warning : The document was created with Spire.PDF for Python.
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ar
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T
h
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)).
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m
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C
#
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i
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A
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a
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rm
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dur
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.
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h
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c
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d
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rt
r
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n
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o
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k.
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h
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t
hi
r
d
p
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t
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h
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y
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pl
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m
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n
t
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d
:
r
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gi
s
t
ra
t
i
o
n,
a
ut
h
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n
t
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c
a
t
i
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n
,
a
s
w
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a
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m
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a
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d
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k
de
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c
t
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n
.
T
h
e
l
a
s
t
pa
rt
i
s
a
w
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do
w
of
e
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t
s
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h
i
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s
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t
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a
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s
a
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a
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s
e
d
pr
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t
o
c
o
l
.
C
a
r
_
a
C
a
r
_
b
Cho
o
s
e
I
N
=
W
elco
m
e
,
Key
_
ca
r
_
a
,
Sen
d
in
g
tim
e
T
_
a
.
G
ener
a
t
e
U_
ca
r
_
a
.
Co
m
pu
t
es …
X
a
=
h
[
Key
_
ca
r
_
a
|
|
T
_
a
]
⊕
U_
ca
r
_
a
Y
a
=
h
[
X
a
|
|
Key
_
ca
r
_
a
]
⊕
U_
ca
r
_
a
Z
a
=
IN
⊕
Key
_
ca
r
_
a
⊕
X
a
⊕
Y
a
⊕
T_a
R
eq
=
E
NC
H
a
(
Z
a
)
I
f
(
Δ
T
b
≤
T
_
b
–
T
_
a
)
T
_
a
,
R
eq
=
DE
C
H
b
(
Z
a
)
Cho
o
s
e
I
N
=
W
e
lco
m
e
,
Key
_
ca
r
_
b
,
R
ec
eiv
in
g
tim
e
T
_
b
.
G
ener
a
t
e
U_
ca
r
_
b
.
Co
m
pu
t
es …
X
b
=
h
[
Key
_
ca
r
_
b
|
|
T
_
b
]
⊕
U_
ca
r
_
b
Y
b
=
h
[
X
b
|
|
Key
_
ca
r
_
b
]
⊕
U_
ca
r
_
b
Z
b
=
I
N
⊕
Key
_
c
a
r
_
b
⊕
X
b
⊕
Y
b
⊕
ΔT
b
R
ep
=
E
NC
H
b
(
Z
b
)
,
Sen
d
in
g
tim
e
: T
b
'
E
ls
e
Attack
R
ec
eiv
in
g
tim
e
: T
a
'
I
f
(
Δ
T
a
≤
T
a
'
–
T
b
'
)
R
ep
=
DE
C
H
a
(
Z
b
)
E
ls
e
Attack
Evaluation Warning : The document was created with Spire.PDF for Python.
In
do
n
e
s
i
a
n
J
E
l
e
c
E
ng
&
Co
m
p
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c
i
IS
S
N
:
2502
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4752
Mul
t
i
-
l
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v
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l
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y
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r
s
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c
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f
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V
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(
Mun
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945
F
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5
.
G
U
I
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f
t
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p
r
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po
s
e
d
s
y
t
s
e
m
3.
R
ES
U
LTS
It
i
s
w
e
l
l
kn
o
w
n
n
o
w
t
h
a
t
t
h
e
c
o
n
s
i
de
r
e
d
p
r
o
t
o
t
y
pe
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n
c
l
ude
s
fo
ur
c
a
r
s
.
I
n
o
r
de
r
t
o
t
e
s
t
t
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pe
r
f
o
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m
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p
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d
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t
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m
,
t
hr
e
e
c
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s
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s
t
ud
i
e
s
ha
s
b
e
e
n
c
o
n
s
i
de
r
e
d.
3.
1
.
C
as
e
s
tu
d
y
o
n
e
In
t
h
e
r
e
gi
s
t
ra
t
i
o
n
l
e
v
e
l
of
ve
h
i
c
l
e
s
(A
,
B
,
C
,
D
)
,
t
h
e
y
s
e
n
d
t
h
e
i
r
i
n
f
o
r
m
a
t
i
o
n
,
w
h
i
c
h
r
e
p
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s
e
nt
s
a
r
e
que
s
t
f
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r
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ke
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a
c
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v
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t
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w
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t
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v
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A
f
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c
c
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pt
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t
h
e
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g
i
s
t
r
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t
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v
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h
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s
,
t
h
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s
e
r
v
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r
w
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r
ks
t
o
s
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d
a
ke
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a
c
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h
i
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t
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t
s
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f
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m
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i
s
r
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gi
s
t
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r
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d
by
t
h
e
s
e
r
v
e
r
(S
e
e
F
i
gur
e
s
o
f
6
-
9).
N
o
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ha
t
t
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e
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e
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s
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o
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h
i
c
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c
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t
w
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r
k
b
e
fo
r
e
r
e
gi
s
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t
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017
.
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4]
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5]
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p
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,
v
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5,
no
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5
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95
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201
3.
[
6]
W
.
B
e
n
J
a
ba
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l
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.
C
o
nt
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a
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.
L
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.
04
577
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.
[
7]
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.
Q
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l
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o
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S
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no
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m
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c
a
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on
&
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ut
om
a
t
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on
,
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.
4
14
–
419
,
2015
.
[
8]
M
.
N
.
M
e
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i
,
N
.
A
c
hi
r
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a
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.
H
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201
6
13
t
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83
7
–
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0
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20
16
.
[
9]
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.
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.
U
.
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.
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s
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.
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l
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.
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he
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d
,
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.
Se
ns
o
r
s
,
v
o
l
.
201
8,
20
18
.
[
10]
V
.
H
.
L
a
a
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.
R
.
C
a
v
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l
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i
,
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e
c
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ul
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d
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ne
t
w
o
r
k
s
:
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s
u
r
v
e
y
,
”
2014
.
[
11]
A
.
P
a
t
h
r
e
,
“
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de
nt
i
f
i
c
a
t
i
o
n
o
f
m
a
l
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c
i
o
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v
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l
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ne
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i
r
o
nm
e
n
t
f
r
o
m
ddo
s
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t
t
a
c
k,
”
J
.
G
l
ob
.
R
e
s
.
C
om
pu
t
.
S
c
i
.
,
v
o
l
.
4,
no
.
6,
p
p.
30
–
34
,
2013
.
[
12]
H
.
V
a
s
ud
e
v
a
nd
D
.
D
a
s
,
“
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l
i
g
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w
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g
ht
A
u
t
he
nt
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c
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t
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o
n
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c
o
l
f
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o
m
m
uni
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t
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o
n
i
n
V
A
N
E
T
s
,
”
i
n
201
8
I
E
E
E
Sm
ar
t
W
or
l
d
,
U
b
i
qu
i
t
ous
I
nt
e
l
l
i
ge
nc
e
&
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om
put
i
ng
,
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d
v
an
c
e
d
&
T
r
us
t
e
d
C
om
p
ut
i
ng
,
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a
l
ab
l
e
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om
pu
t
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ng
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om
m
uni
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at
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on
s
,
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l
o
ud
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i
g
D
at
a
C
om
pu
t
i
ng
,
I
nt
e
r
ne
t
of
P
e
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e
and
Sm
ar
t
C
i
t
y
I
n
nov
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t
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o
n
(
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ar
t
W
or
l
d
/
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L
C
O
M
/
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I
C
/
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T
C
/
C
B
D
C
om
/
I
O
P
/
SC
I
)
,
pp
.
123
7
–
1242
,
2018
.
[
13]
H
.
L
i
u,
Y
.
S
un
,
Y
.
X
u,
R
.
X
u
,
a
nd
Z
.
W
e
i
,
“
A
s
e
c
ur
e
l
a
t
t
i
c
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-
ba
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d
a
no
n
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c
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n
s
c
he
m
e
f
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V
A
N
E
T
s
,
”
J
.
C
hi
ne
s
e
I
n
s
t
.
E
ng
.
,
v
o
l
.
42,
no
.
1
,
pp.
6
6
–
73
,
201
9.
[
14]
K
.
S
.
E
uni
c
e
a
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d
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.
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uv
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ur
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ul
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.
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.
A
dv
.
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om
put
.
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i
.
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p
pl
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,
v
o
l
.
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,
pp.
1
21
–
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26,
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019
.
[
15]
B
.
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a
ng
,
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.
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a
ng
,
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n
d
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h
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s
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c
ur
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om
m
u
n.
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e
t
w
or
k
s
,
v
o
l
.
20
19
,
2
019
.
[
16]
Q
.
X
u
,
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.
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a
k
,
J
.
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o
,
a
nd
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.
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e
ng
upt
a
,
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e
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c
l
e
-
to
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v
e
hi
c
l
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f
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y
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e
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g
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ng
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n
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R
C
,
”
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n
P
r
oc
e
e
di
ngs
o
f
t
he
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t
A
C
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ona
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s
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o
n
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e
h
i
c
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l
ar
a
d
h
oc
ne
t
w
or
k
s
,
pp
.
19
–
28
,
2
004
.
[
17]
V
.
D
.
K
um
a
r
,
V
.
V
.
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u
m
a
r
,
D
.
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a
n
d
a
r
,
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m
i
s
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o
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p
.
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6
49
–
26
5
4
,
2
0
18
.
[
18]
B
.
J
i
a
,
Z
.
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e
i
,
B
.
L
i
u,
a
n
d
Z
.
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e
ng
,
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e
r
f
o
r
m
a
nc
e
A
na
l
y
s
i
s
f
o
r
t
h
e
C
o
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s
t
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nc
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o
f
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a
da
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a
n
d
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m
m
uni
c
a
t
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o
n
i
n
V
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N
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T
s
,
”
i
n
2019
I
E
E
E
/
C
I
C
I
n
t
e
r
na
t
i
ona
l
C
onf
e
r
e
nc
e
o
n
C
om
m
u
ni
c
a
t
i
on
s
i
n
C
hi
na
(
I
C
C
C
)
,
pp.
9
79
–
9
83
,
2
019
.
[
19]
M
.
S
.
G
u
r
m
a
n
i
a
nd
D
.
P
.
F
.
M
ö
l
l
e
r
,
“
M
e
c
ha
ni
s
m
P
r
o
t
e
c
t
i
ng
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hi
c
l
e
-
to
-
V
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hi
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l
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o
m
m
uni
c
a
t
i
o
n,
”
i
n
Sm
ar
t
T
e
c
hnol
o
gi
e
s
,
S
pr
i
ng
e
r
,
pp
.
3
35
–
3
43
,
2
020
.
[
20]
U
.
S
ha
i
kh
a
nd
N
.
T
ha
l
ka
r
,
“
V
e
h
i
c
l
e
C
o
m
m
uni
c
a
t
i
o
n
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y
s
t
e
m
s
:
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e
c
hno
l
o
gy
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nd
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e
v
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e
w
,
”
i
n
C
on
f
e
r
e
nc
e
on
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hnol
o
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e
s
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or
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ut
ur
e
C
i
t
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e
s
(
C
T
F
C
)
,
20
19.
[
21]
S
.
K
um
a
r
a
nd
K
.
S
.
M
a
n
n,
“
P
r
e
v
e
n
t
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f
D
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S
A
t
t
a
c
ks
b
y
D
e
t
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c
t
i
o
n
o
f
M
ul
t
i
pl
e
M
a
l
i
c
i
o
us
N
o
de
s
i
n
V
A
N
E
T
s
,
”
i
n
2019
I
n
t
e
r
nat
i
on
al
C
on
f
e
r
e
nc
e
on
A
ut
om
at
i
on
,
C
om
pu
t
at
i
on
a
l
an
d
T
e
c
hno
l
og
y
M
ana
ge
m
e
nt
(
I
C
A
C
T
M
)
,
pp.
89
–
94
,
2019
.
[
22]
A
.
N
.
U
pa
dhy
a
y
a
a
nd
J
.
S
.
S
h
a
h,
“
A
t
t
a
c
ks
o
n
v
a
ne
t
s
e
c
ur
i
t
y
,
”
I
nt
J
C
om
p
E
n
g
T
e
c
h
,
v
o
l
.
9
,
no
.
1,
pp
.
8
–
1
9,
20
18.
[
23]
A
.
D
ur
r
a
ni
,
S
.
L
a
t
i
f
,
R
.
L
a
t
i
f
,
a
nd
H
.
A
bba
s
,
“
D
e
t
e
c
t
i
o
n
o
f
D
e
ni
a
l
o
f
S
e
r
v
i
c
e
(
D
o
S
)
A
t
t
a
c
k
i
n
V
e
h
i
c
ul
a
r
A
d
H
o
c
N
e
t
w
o
r
ks
:
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S
y
s
t
e
m
a
t
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c
L
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t
e
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a
t
u
r
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e
w
.
,
”
A
dho
c
Se
ns
.
W
i
r
e
l
.
N
e
t
w
or
k
s
,
v
o
l
.
42
,
201
8.
[
24]
Y
.
G
a
o
,
H
.
W
u
,
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.
S
o
ng
,
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i
n
,
X
.
L
uo
,
a
nd
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.
Z
e
ng
,
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D
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s
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t
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E
A
c
c
e
s
s
,
v
o
l
.
7
,
pp
.
1
5
45
6
0
–
1
54
5
71
,
2
01
9
.
[
25]
W
.
A
hm
e
d
a
nd
M
.
E
l
ha
de
f
,
“
D
o
S
A
t
t
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c
ks
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n
d
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o
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m
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s
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r
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n
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N
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T
s
,
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i
n
A
dv
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nc
e
d
M
ul
t
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m
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a
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nd
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bi
qu
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t
ous
E
n
gi
ne
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r
i
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g
,
S
p
r
i
ng
e
r
,
p
p.
33
3
–
34
1
,
20
18
.
[
26]
M
.
A
.
F
a
dh
e
l
,
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.
A
l
-
S
ha
m
a
a
,
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nd
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.
H
.
T
a
he
r
,
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a
l
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T
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t
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l
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A
,
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In
t
.
J
.
E
ng
.
T
e
c
hno
l
.
,
v
o
l
.
7
,
no
.
2
.
31
,
pp.
1
17
–
1
21,
2
018
.
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