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ased
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5
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ti
m
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p
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in
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it
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ag
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y
.
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h
is
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h
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an
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ased
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s
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I
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ased
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as
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p
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tatio
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al
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f
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ie
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m
an
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is
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ar
d
.
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h
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est
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f
th
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p
ap
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s
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s
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tio
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2
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at
h
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a
tical
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3
p
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Sectio
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4
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a
n
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ased
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li
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d
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Sectio
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,
th
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Sectio
n
6
co
n
clu
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e
s
th
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p
ap
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.
2.
P
RE
L
I
M
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NARIE
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I
n
th
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s
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t
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n
,
w
e
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ll
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r
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l
y
d
is
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u
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th
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asic
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c
ep
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b
ilin
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p
air
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d
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co
m
p
u
tatio
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al
h
ar
d
p
r
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b
lem
s
.
2
.
1
.
B
ilin
ea
r
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I
t
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an
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m
p
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ta
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cr
y
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to
g
r
ap
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m
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2
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2
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2
.
4
.
Co
m
pu
t
a
t
io
na
l
P
ro
blem
s
T
h
is
s
ec
tio
n
p
r
esen
ts
s
o
m
e
co
m
p
u
tatio
n
al
p
r
o
b
lem
s
w
h
ic
h
w
ill
f
o
r
m
t
h
e
b
asis
o
f
s
ec
u
r
it
y
f
o
r
o
u
r
I
B
B
SS
MR sch
e
m
e.
1.
Dis
cr
ete
L
o
g
ar
it
h
m
P
r
o
b
lem
(
DL
P
)
:
Giv
en
t
w
o
g
r
o
u
p
ele
m
en
ts
an
d
PQ
,
f
in
d
an
in
te
g
er
n
s
u
c
h
th
at
Q
n
P
w
h
en
e
v
er
s
u
c
h
a
n
in
te
g
er
ex
i
s
ts
.
2.
Dec
is
io
n
al
D
if
f
ie
-
Hell
m
a
n
P
r
o
b
lem
(
DDHP
)
:
Fo
r
*
,
,
Rq
a
b
c
Z
,
g
iv
en
,
,
,
P
a
P
b
P
c
P
d
ec
id
e
w
h
et
h
er
m
od
c
ab
q
.
3.
C
o
m
p
u
tatio
n
al
D
if
f
ie
-
Hel
l
m
a
n
P
r
o
b
lem
(
C
D
HP
)
:
Fo
r
*
,
Rq
a
b
Z
,
g
iv
e
n
,,
P
a
P
b
P
co
m
p
u
te
abP
.
T
h
r
o
u
g
h
o
u
t th
i
s
p
ap
er
,
w
e
ass
u
m
e
t
h
at
C
D
HP
an
d
D
L
P
ar
e
i
n
tr
ac
tab
le.
3.
SYNT
A
X
AND
S
E
CUR
I
T
Y
O
F
T
H
E
P
RO
P
O
SE
D
I
B
B
S
SM
R
SCH
E
M
E
I
n
th
i
s
s
ec
tio
n
w
e
p
r
esen
t t
h
e
s
y
n
ta
x
a
n
d
s
ec
u
r
it
y
m
o
d
el
o
f
t
h
e
p
r
o
p
o
s
ed
I
B
B
SS
MR sch
e
m
e
.
3
.
1
.
Sy
nt
a
x
o
f
I
B
B
SS
M
R
Ou
r
b
lin
d
s
ig
n
at
u
r
e
s
ch
e
m
e
w
it
h
m
ess
a
g
e
r
ec
o
v
er
y
is
a
n
ex
te
n
s
io
n
o
f
o
r
d
in
ar
y
b
lin
d
s
ig
n
a
tu
r
e
s
ch
e
m
e.
T
h
is
s
c
h
e
m
e
co
n
s
is
t
s
o
f
t
h
e
f
o
llo
w
i
n
g
f
o
u
r
al
g
o
r
ith
m
s
:
S
y
s
te
m
Set
u
p
,
Ke
y
E
x
tr
a
ct,
B
lin
d
Si
g
n
at
u
r
e
Gen
er
atio
n
,
B
li
n
d
Si
g
n
at
u
r
e
Ver
if
icat
io
n
w
i
th
Me
s
s
ag
e
R
ec
o
v
er
y
.
T
h
e
d
etailed
d
escr
ip
tio
n
o
f
th
e
s
e
alg
o
r
ith
m
s
i
s
d
es
cr
ib
ed
.
1.
S
y
s
te
m
Set
u
p
:
Fo
r
a
g
iv
e
n
s
e
cu
r
it
y
p
ar
a
m
eter
,
kZ
th
e
Ke
y
Ge
n
er
atio
n
C
en
tr
e
(
KG
C
)
r
u
n
th
is
alg
o
r
ith
m
an
d
g
e
n
er
ates
t
h
e
s
y
s
te
m
p
ar
a
m
e
ter
s
P
a
r
a
ms
an
d
th
e
m
a
s
ter
k
e
y
s
.
P
a
r
a
ms
ar
e
m
ad
e
p
u
b
lic
an
d
s
is
k
ep
t secr
et.
P
a
r
a
ms
ar
e
i
m
p
licit i
n
p
u
t to
all
th
e
f
o
llo
w
i
n
g
alg
o
r
it
h
m
s
.
2.
Ke
y
E
x
tr
ac
t:
Fo
r
a
g
iv
e
n
u
s
er
’
s
id
e
n
tit
y
ID
,
t
h
e
KG
C
r
u
n
s
t
h
is
al
g
o
r
it
h
m
to
g
e
n
er
ate
t
h
e
p
u
b
lic
k
e
y
ID
Q
an
d
th
e
p
r
iv
ate
k
e
y
.
ID
d
KGC s
e
n
d
s
ID
d
to
th
e
co
r
r
esp
o
n
d
in
g
u
s
er
t
h
r
o
u
g
h
a
s
ec
u
r
e
ch
a
n
n
e
l.
3.
B
lin
d
Sig
n
at
u
r
e
Gen
er
atio
n
:
T
h
is
i
s
an
i
n
ter
ac
ti
v
e
an
d
p
r
o
b
ab
ilis
tic
p
o
l
y
n
o
m
ial
t
i
m
e
p
r
o
to
co
l,
w
h
ich
is
o
p
er
ated
b
y
t
h
e
u
s
er
a
n
d
t
h
e
s
ig
n
er
.
T
h
e
u
s
er
f
ir
s
t
b
li
n
d
s
th
e
m
es
s
ag
e
M
an
d
o
b
tain
s
a
n
e
w
v
er
s
io
n
h
o
f
,
M
an
d
th
e
n
s
e
n
d
s
it
to
th
e
s
ig
n
er
.
T
h
e
s
ig
n
er
u
s
e
s
h
i
s
/h
er
p
r
iv
ate
k
e
y
to
s
ig
n
o
n
h
an
d
o
b
tain
s
,
V
an
d
t
h
e
n
s
e
n
d
s
i
t
to
th
e
u
s
er
.
T
h
e
u
s
er
u
n
b
li
n
d
s
it
to
o
b
tain
,
V
w
h
ich
is
a
b
l
in
d
s
ig
n
at
u
r
e
o
n
th
e
o
r
ig
in
al
.
M
4.
B
lin
d
Sig
n
at
u
r
e
Ver
if
icatio
n
w
it
h
Me
s
s
a
g
e
R
ec
o
v
er
y
:
F
o
r
a
s
ig
n
er
’
s
id
e
n
tit
y
I
D
an
d
a
b
lin
d
s
ig
n
at
u
r
e
,
a
v
er
if
ier
r
u
n
s
th
i
s
alg
o
r
ith
m
to
r
ec
o
v
er
th
e
m
es
s
a
g
e
an
d
ch
ec
k
th
e
v
al
id
it
y
o
f
t
h
e
b
lin
d
s
ig
n
at
u
r
e
,
m
o
r
e
p
r
ec
is
el
y
,
t
h
e
alg
o
r
ith
m
V
eri
fy
(
,
)
ID
o
u
tp
u
ts
1
i
f
ac
ce
p
ted
,
o
r
0
if
r
ej
e
cted
.
3
.
2
.
Securit
y
Re
qu
ire
m
ent
s
o
f
t
he
P
ro
po
s
ed
I
B
B
SS
M
R
A
s
ec
u
r
e
b
lin
d
s
i
g
n
at
u
r
e
s
ch
e
m
e
m
u
s
t sati
s
f
y
t
h
e
f
o
llo
w
i
n
g
r
eq
u
ir
e
m
en
ts
:
1.
C
o
r
r
ec
tn
ess
:
I
f
th
e
u
s
er
an
d
th
e
s
ig
n
er
,
b
o
th
c
o
m
p
l
y
w
it
h
th
e
al
g
o
r
ith
m
o
f
b
lin
d
s
ig
n
a
tu
r
e
g
en
er
atio
n
,
t
h
en
t
h
e
b
li
n
d
s
ig
n
at
u
r
e
V
w
ill
al
w
a
y
s
b
e
ac
ce
p
ted
.
T
h
e
co
r
r
ec
tn
ess
o
f
t
h
e
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
E
C
E
I
SS
N:
2
0
8
8
-
8708
I
d
en
tity
-
B
a
s
ed
B
lin
d
S
ig
n
a
tu
r
e
S
ch
eme
w
ith
Mes
s
a
g
e
R
ec
o
ve
r
y
(
S
a
lo
me
Ja
mes
)
2677
s
ig
n
at
u
r
e
o
f
a
m
es
s
a
g
e
s
ig
n
ed
th
r
o
u
g
h
th
e
s
ig
n
atu
r
e
s
ch
e
m
e
ca
n
b
e
ch
ec
k
ed
b
y
an
y
o
n
e
u
s
i
n
g
th
e
s
i
g
n
er
’
s
p
u
b
lic
k
e
y
.
2.
B
lin
d
n
es
s
:
A
s
i
g
n
at
u
r
e
is
s
a
id
to
b
e
b
l
in
d
i
f
a
g
iv
e
n
m
ess
a
g
e
-
s
i
g
n
at
u
r
e
p
air
a
n
d
t
h
e
s
i
g
n
er
’
s
v
ie
w
ar
e
s
tat
is
tical
l
y
i
n
d
ep
en
d
en
t.
W
h
i
le
co
r
r
ec
tl
y
o
p
er
atin
g
o
n
e
i
n
s
tan
ce
o
f
th
e
b
li
n
d
s
ig
n
at
u
r
e
s
c
h
e
m
e,
let
th
e
o
u
tp
u
t
b
e
(
,
)
MV
(
i.e
,
m
es
s
a
g
e
-
s
i
g
n
at
u
r
e
p
air
)
an
d
th
e
v
ie
w
o
f
t
h
e
p
r
o
to
co
l
.
V
A
t
a
later
ti
m
e,
th
e
s
i
g
n
er
i
s
n
o
t
ab
le
to
li
n
k
V
to
(
,
).
MV
T
h
e
co
n
ten
t
o
f
th
e
m
es
s
ag
e
s
h
o
u
ld
b
e
b
lin
d
t
o
th
e
s
ig
n
er
;
th
e
s
ig
n
er
o
f
th
e
b
lin
d
s
ig
n
at
u
r
e
d
o
es
n
o
t
s
ee
th
e
co
n
ten
t
o
f
t
h
e
m
e
s
s
a
g
e.
3.
Un
f
o
r
g
ea
b
ilit
y
:
I
t
i
s
w
i
th
r
esp
ec
t
to
th
e
u
s
er
esp
ec
iall
y
,
i.e
.
th
e
u
s
er
is
n
o
t
ab
le
to
f
o
r
g
e
b
lin
d
s
i
g
n
a
tu
r
es
w
h
ich
ar
e
a
cc
ep
ted
b
y
t
h
e
al
g
o
r
ith
m
o
f
v
er
if
icatio
n
o
f
b
li
n
d
s
i
g
n
at
u
r
es.
On
l
y
th
e
s
i
g
n
er
ca
n
g
i
v
e
a
v
alid
s
ig
n
at
u
r
e
f
o
r
th
e
ass
o
ciate
d
m
es
s
ag
e.
4.
P
RO
P
O
SE
D
I
D
-
B
AS
E
D
B
L
I
ND
SI
G
N
AT
U
RE
S
CH
E
M
E
WI
T
H
M
E
SS
AG
E
R
E
CO
VE
RY
I
n
th
is
s
ec
tio
n
,
w
e
p
r
esen
t
o
u
r
I
D
-
b
ased
b
lin
d
s
ig
n
a
tu
r
e
s
ch
e
m
e
w
i
th
m
e
s
s
a
g
e
r
ec
o
v
er
y
(
I
B
B
B
SS
MR)
s
c
h
e
m
e.
As
d
i
s
cu
s
s
ed
i
n
Sectio
n
3
.
1
,
th
e
d
etailed
f
u
n
ct
io
n
alit
ies
o
f
t
h
ese
al
g
o
r
ith
m
s
ar
e
p
r
esen
ted
.
1.
S
y
s
te
m
Set
u
p
:
Fo
r
a
g
i
v
en
s
ec
u
r
it
y
p
ar
a
m
eter
,
kZ
th
e
KGC
r
u
n
s
t
h
is
al
g
o
r
it
h
m
as
f
o
llo
w
s
.
C
h
o
o
s
es
t
w
o
g
r
o
u
p
s
12
,
GG
o
f
s
am
e
p
r
i
m
e
o
r
d
e
r
2
k
q
w
it
h
a
b
ilin
ea
r
p
air
in
g
1
1
2
1
ˆ
:
;
e
G
G
G
G
is
an
ad
d
itiv
e
c
y
clic
g
r
o
u
p
w
it
h
1
PG
as a
g
en
er
ato
r
an
d
2
G
is
a
m
u
lt
ip
licativ
e
c
y
c
lic
g
r
o
u
p
.
a.
Selects
*
q
sZ
r
an
d
o
m
l
y
a
n
d
co
m
p
u
t
es th
e
s
y
s
te
m
p
u
b
lic
k
e
y
.
pub
P
s
P
b.
C
h
o
o
s
es
a
m
ap
-
to
-
p
o
in
t
h
as
h
f
u
n
ctio
n
*
11
:
{
0
,
1
}
HG
an
d
t
h
r
ee
cr
y
p
to
g
r
ap
h
ic
h
a
s
h
f
u
n
ctio
n
s
12
*
22
:
{
0
,
1}
{
0
,
1}
,
ll
HG
1
2
2
1
12
:
{
0
,
1}
{
0
,
1}
,
:
{
0
,
1}
{
0
,
1}
.
l
l
l
l
FF
c.
No
w
KGC
p
u
b
lis
h
es
t
h
e
s
y
s
t
e
m
p
ar
a
m
eter
s
as
1
2
1
2
1
2
ˆ
{
,
,
,
,
,
,
,
,
,
}
pub
P
a
r
a
m
s
G
G
e
q
P
P
H
H
F
F
as p
u
b
lic
an
d
k
ee
p
s
t
h
e
m
aster
k
e
y
s
as secr
et.
2.
Ke
y
E
x
tr
ac
t
:
Gi
v
en
a
n
u
s
e
r
’
s
id
en
tit
y
I
D,
th
e
KGC
co
m
p
u
tes
t
h
e
co
r
r
esp
o
n
d
in
g
p
r
iv
ate
k
e
y
ID
ID
d
s
Q
w
h
er
e
1
()
ID
Q
H
I
D
is
th
e
p
u
b
lic
k
e
y
o
f
th
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[
1
8
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Evaluation Warning : The document was created with Spire.PDF for Python.
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RE
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E
R
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NC
E
S
[1
]
D.
Ch
a
u
m
,
“
Bli
n
d
sig
n
a
t
u
re
s
f
o
r
u
n
trac
e
a
b
le
p
a
y
m
e
n
ts,
”
In
Pro
c
.
o
f
CR
Y
PT
O’8
2
,
Ne
w
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o
rk
:
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len
u
m
Pre
ss
p
p
.
1
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0
-
2
0
3
,
1
9
8
3
.
[2
]
R.
A
.
S
a
h
o
o
,
a
n
d
S
.
P
a
d
h
y
e
,
"
ID
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b
a
se
d
sig
n
a
tu
re
sc
h
e
m
e
f
ro
m
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il
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e
a
r
p
a
iri
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g
s:
A
s
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e
y
,
"
Fro
n
t.
El
e
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tr.
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e
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tro
n
.
E
n
g
g
.
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h
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n
a
,
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l.
6
(4
),
p
p
.
4
8
7
-
5
0
0
,
2
0
1
1
.
[3
]
M
.
li
,
P
ro
v
a
b
le
se
c
u
re
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n
d
e
f
f
ici
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se
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e
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n
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ted
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re
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h
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m
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h
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e
ss
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o
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,
"
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d
o
n
e
s
i
a
n
J
o
u
rn
a
l
o
f
El
e
c
trica
l
En
g
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n
e
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a
n
d
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ien
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e
, v
o
l.
1
2
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1
0
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p
p
.
7
3
4
3
-
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3
5
2
,
2
0
1
4
.
[4
]
G
.
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w
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p
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e
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a
l.
"
A
n
e
ff
icie
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t
ID
-
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se
d
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ro
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sig
n
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r
y
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n
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h
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m
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,
"
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ter
n
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ti
o
n
a
l
J
o
u
rn
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l
o
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Ne
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rk
s
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e
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rity
,
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l
.
1
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n
o.
3
,
p
p
.
2
0
0
-
2
0
6
,
2
0
1
2
.
[5
]
F
.
Zh
a
n
g
a
n
d
K.
Kim
,
“
ID
-
b
a
se
d
b
li
n
d
sig
n
a
t
u
re
a
n
d
ri
n
g
sig
n
a
tu
re
f
ro
m
p
a
iri
n
g
s,"
AS
IACR
Y
PT
-
2
0
0
2
,
L
NCS,
v
o
l.
2
5
0
7
,
p
p
.
5
3
3
–
5
4
7
,
2
0
0
2
.
[6
]
Hu
a
S
u
n
,
"
Ne
w
C
e
r
ti
f
ic
a
tele
ss
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li
n
d
R
in
g
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ig
n
a
t
u
re
S
c
h
e
m
e
,
”
T
EL
KOM
NIKA
In
d
o
n
e
sia
n
J
o
u
rn
a
l
o
f
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e
c
trica
l
En
g
i
n
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rin
g
.
, v
o
l
.
1
2
,
n
o
.
1
,
p
p
.
7
7
8
-
7
8
3
,
2
0
1
4
.
[7
]
Hu
a
n
g
,
e
t
a
l.
,
“
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f
icie
n
t
id
e
n
ti
ty
-
b
a
se
d
sig
n
a
tu
re
s
a
n
d
b
li
n
d
sig
n
a
tu
re
s,”
CANS
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5
,
L
NCS
3
8
1
0
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S
p
rin
g
e
r
-
Ver
la
g
,
p
p
.
1
2
0
-
1
3
3
,
2
0
0
5
.
[8
]
Z.
Zh
a
o
,
e
t
a
l.
,
“
A
Ne
w
ID
-
Ba
se
d
Bli
n
d
S
ig
n
a
t
u
re
f
ro
m
Bil
in
e
a
r
P
a
iri
n
g
s,”
Pro
c
e
e
d
in
g
s
o
f
t
h
e
ICW
M
M
N
2
0
0
6
,
p
p
.
4
0
2
-
4
0
3
,
2
0
0
6
.
[9
]
S
.
Ka
lk
a
n
,
e
t
a
l.
,
“
G
e
n
e
ra
li
z
e
d
ID
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se
d
Bli
n
d
S
ig
n
a
tu
re
s
f
ro
m
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in
e
a
r
P
a
iri
n
g
s,”
In
p
ro
c
e
e
d
i
n
g
o
f
th
e
2
3
In
ter
n
a
t
io
n
a
l
S
y
mp
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si
u
m o
n
C
o
m
p
u
ter
a
n
d
In
f
o
rm
a
ti
o
n
S
c
ien
c
e
s (
IS
CIS
2
0
0
7
)
,
p
p
4
5
-
4
8
,
2
0
0
7
.
[1
0
]
Z.
Zh
a
o
,
“
ID
-
Ba
se
d
A
u
th
e
n
ti
c
a
ted
Bli
n
d
S
ig
n
a
t
u
re
S
c
h
e
m
e
f
ro
m
Bil
in
e
a
r
P
a
iri
n
g
s,”
p
r
o
c
e
e
d
in
g
s
o
f
th
e
In
t.
Co
n
f.
o
n
Co
m
p
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t
a
ti
o
n
a
l
I
n
telli
g
e
n
c
e
a
n
d
S
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c
u
rity W
o
rk
sh
o
p
s
,
IE
EE
,
p
p
.
7
2
5
-
7
2
8
,
2
0
0
7
.
[1
1
]
B.
U
m
a
p
ra
sa
d
a
R
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o
,
e
t
a
l.
,
“
A
n
ID
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se
d
Bli
n
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tu
re
S
c
h
e
m
e
f
ro
m
Bil
in
e
a
r
P
a
iri
n
g
s,”
In
ter
n
a
t
io
n
a
l
J
o
u
rn
a
l
o
f
Co
m
p
u
ter
S
c
ien
c
e
a
n
d
S
e
c
u
rity
.
v
o
l.
4
(1
)
,
p
p
.
9
8
-
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0
6
,
2
0
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S
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h
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me
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I
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[1
2
]
G
.
X
u
a
n
d
G
.
X
u
,
“
A
n
ID
-
b
a
se
d
Bli
n
d
S
ig
n
a
tu
re
f
ro
m
Bil
in
e
a
r
P
a
iri
n
g
w
it
h
Un
li
n
k
a
b
il
it
y
,
”
IEE
E
c
o
n
fer
e
n
c
e
o
n
In
fo
rm
a
t
io
n
se
c
u
rity,
p
p
.
1
0
1
-
1
0
4
,
2
0
1
2
.
[1
3
]
R.
P
a
n
c
e
a
n
d
A
.
L
ju
p
c
h
o
,
“
Co
m
p
a
riso
n
o
f
ID
-
Ba
se
d
Bli
n
d
S
ig
n
a
tu
re
s
f
ro
m
P
a
iri
n
g
s
f
o
r
E
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v
o
ti
n
g
P
ro
t
o
c
o
ls,
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M
IPR
O 2
0
1
4
,
O
p
a
ti
ja,
Cr
o
a
ti
a
p
p
.
2
6
-
3
0
,
2
0
1
4
.
[1
4
]
S
.
Ha
n
,
a
n
d
E
.
Ch
a
n
g
,
“
A
P
a
iri
n
g
-
Ba
se
d
Bli
n
d
S
ig
n
a
tu
re
S
c
h
e
m
e
w
it
h
M
e
ss
a
g
e
Re
c
o
v
e
r
y
,
”
In
ter
n
a
ti
o
n
a
l
J
o
u
rn
a
l
o
f
In
fo
rm
a
t
io
n
T
e
c
h
n
o
l
o
g
y
,
v
o
l.
2
(4
),
2
0
0
5
.
[1
5
]
J.
W
a
n
g
a
n
d
H.
Qia
n
,
“
A
n
Op
ti
m
a
l
Bli
n
d
S
ig
n
a
tu
re
P
a
d
d
i
n
g
w
it
h
M
e
ss
a
g
e
Re
c
o
v
e
r
y
,
”
Fi
ft
h
In
ter
n
a
t
io
n
a
l
Co
n
fer
e
n
c
e
o
n
In
f
o
rm
a
ti
o
n
Assu
r
a
n
c
e
a
n
d
S
e
c
u
rity
,
2
0
0
9
.
[1
6
]
J.
S
.
Z
h
a
n
g
,
“
A
Kin
d
o
f
M
e
ss
a
g
e
-
Re
c
o
v
e
ra
b
le
F
a
irn
e
ss
Bli
n
d
Dig
it
a
l
S
ig
n
a
tu
re
S
c
h
e
m
e
,
”
Pro
c
e
e
d
ia
En
g
i
n
e
e
rin
g
v
o
l.
1
5
,
p
p
.
2
1
0
3
-
2
1
0
7
,
2
0
1
1
.
[1
7
]
E.
Ha
ss
a
n
a
n
d
A
.
Ya
s
m
in
e
,
“
A
Ne
w
Bli
n
d
Id
e
n
ti
ty
-
Ba
se
d
S
ig
n
a
tu
re
S
c
h
e
m
e
w
it
h
M
e
ss
a
g
e
R
e
c
o
v
e
r
y
,
”
T
h
e
On
li
n
e
J
o
u
rn
a
l
o
f
El
e
c
tro
n
ics
a
n
d
El
e
c
trica
l
E
n
g
in
e
e
rin
g
(
OJ
EE
E)
,
v
o
l.
2
(2
),
2
0
0
6
.
[1
8
]
D.
P
o
i
n
tch
e
v
a
l
a
n
d
J.
S
ter
n
,
“
S
e
c
u
rit
y
a
r
g
u
m
e
n
ts
f
o
r
d
ig
it
a
l
sig
n
a
tu
re
s
a
n
d
b
li
n
d
sig
n
a
tu
re
s,
”
J
o
u
rn
a
l
o
f
Cry
p
to
lo
g
y
,
v
o
l.
1
3
(3
)
,
p
p
.
3
6
1
-
3
9
6
,
2
0
0
0
.
[1
9
]
X
.
Ca
o
,
e
t
a
l.
,
“
A
p
a
iri
n
g
-
fre
e
id
e
n
ti
ty
-
b
a
se
d
a
u
th
e
n
t
ica
ted
k
e
y
a
g
re
e
me
n
t
p
ro
t
o
c
o
l
wit
h
min
i
ma
l
me
ss
a
g
e
e
x
c
h
a
n
g
e
s
,”
In
fo
rm
a
ti
o
n
S
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