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Commit
35336d9e
authored
Jul 02, 2014
by
Scott Duckworth
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extract key parts in constructor
parent
6ac5412d
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1 changed file
with
12 additions
and
13 deletions
+12
-13
django_sshkey/util.py
+12
-13
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django_sshkey/util.py
View file @
35336d9e
...
...
@@ -74,9 +74,14 @@ class PublicKey(object):
def
__init__
(
self
,
b64key
,
comment
=
None
):
self
.
b64key
=
b64key
self
.
comment
=
comment
self
.
keydata
=
base64
.
b64decode
(
b64key
.
encode
(
'ascii'
))
n
=
struct
.
unpack
(
'>I'
,
self
.
keydata
[:
4
])
self
.
algorithm
=
self
.
keydata
[
4
:
4
+
n
[
0
]]
keydata
=
base64
.
b64decode
(
b64key
.
encode
(
'ascii'
))
self
.
keydata
=
keydata
self
.
parts
=
[]
while
keydata
:
dlen
=
struct
.
unpack
(
'>I'
,
keydata
[:
4
])[
0
]
data
,
keydata
=
keydata
[
4
:
4
+
dlen
],
keydata
[
4
+
dlen
:]
self
.
parts
.
append
(
data
)
self
.
algorithm
=
self
.
parts
[
0
]
def
fingerprint
(
self
):
import
hashlib
...
...
@@ -99,18 +104,12 @@ class PublicKey(object):
return
out
def
format_pem
(
self
):
if
self
.
algorithm
!=
'ssh-rsa'
:
raise
TypeError
(
"key is not a RSA key"
)
if
self
.
algorithm
!=
'ssh-rsa'
and
len
(
self
.
parts
)
==
3
:
raise
TypeError
(
"key is not a
valid
RSA key"
)
from
pyasn1.codec.der
import
encoder
as
der_encoder
from
pyasn1.type
import
univ
keydata
=
self
.
keydata
parts
=
[]
while
keydata
:
dlen
=
struct
.
unpack
(
'>I'
,
keydata
[:
4
])[
0
]
data
,
keydata
=
keydata
[
4
:
4
+
dlen
],
keydata
[
4
+
dlen
:]
parts
.
append
(
data
)
e
=
bytes2int
(
parts
[
1
])
n
=
bytes2int
(
parts
[
2
])
e
=
bytes2int
(
self
.
parts
[
1
])
n
=
bytes2int
(
self
.
parts
[
2
])
pkcs1_seq
=
univ
.
Sequence
()
pkcs1_seq
.
setComponentByPosition
(
0
,
univ
.
Integer
(
n
))
pkcs1_seq
.
setComponentByPosition
(
1
,
univ
.
Integer
(
e
))
...
...
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