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Python/ciphers/cryptomath_module.py at cclauss-patch-1 · programmin1/Python · GitHub
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cclauss-patch-1
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Python
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ciphers
/
cryptomath_module.py
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cclauss-patch-1
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Python
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ciphers
/
cryptomath_module.py
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def
gcd
(
a
:
int
,
b
:
int
)
->
int
:
while
a
!=
0
:
a
,
b
=
b
%
a
,
a
return
b
def
findModInverse
(
a
:
int
,
m
:
int
)
->
int
:
if
gcd
(
a
,
m
)
!=
1
:
return
None
u1
,
u2
,
u3
=
1
,
0
,
a
v1
,
v2
,
v3
=
0
,
1
,
m
while
v3
!=
0
:
q
=
u3
//
v3
v1
,
v2
,
v3
,
u1
,
u2
,
u3
=
(
u1
-
q
*
v1
), (
u2
-
q
*
v2
), (
u3
-
q
*
v3
),
v1
,
v2
,
v3
return
u1
%
m
You can’t perform that action at this time.
