1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
#!/usr/bin/env python
#
#vim: ts=4 sw=4 nowrap
#
from __future__ import print_function
"""PKI demo by Peter Teniz <peter.teniz@inverisa.net>"""
from M2Crypto import ASN1, EVP, RSA, X509, m2
MBSTRING_FLAG = 0x1000
MBSTRING_ASC = MBSTRING_FLAG | 1
MBSTRING_BMP = MBSTRING_FLAG | 2
class Cert(object):
def __init__ ( self ):
self.RsaKey = { 'KeyLength' : 1024,
'PubExponent' : 0x10001, # -> 65537
'keygen_callback' : self.callback
}
self.KeyPair = None
self.PKey = None
self.X509Request = None
self.X509Certificate = None
def callback ( self, *args ):
return 'p'
def CreatePKey ( self ):
self.KeyPair = RSA.gen_key( self.RsaKey['KeyLength'], self.RsaKey['PubExponent'], self.RsaKey['keygen_callback'] )
#PubKey = RSA.new_pub_key( self.KeyPair.pub () )
self.KeyPair.save_key( 'KeyPair.pem', cipher='des_ede3_cbc', callback=self.callback )
self.PKey = EVP.PKey ( md='sha1')
self.PKey.assign_rsa ( self.KeyPair )
def CreateX509Request ( self ):
#
# X509 REQUEST
#
self.X509Request = X509.Request ()
#
# subject
#
X509Name = X509.X509_Name ()
X509Name.add_entry_by_txt ( field='C', type=MBSTRING_ASC, entry='austria', len=-1, loc=-1, set=0 ) # country name
X509Name.add_entry_by_txt ( field='SP', type=MBSTRING_ASC, entry='kernten', len=-1, loc=-1, set=0 ) # state of province name
X509Name.add_entry_by_txt ( field='L', type=MBSTRING_ASC, entry='stgallen', len=-1, loc=-1, set=0 ) # locality name
X509Name.add_entry_by_txt ( field='O', type=MBSTRING_ASC, entry='labor', len=-1, loc=-1, set=0 ) # organization name
X509Name.add_entry_by_txt ( field='OU', type=MBSTRING_ASC, entry='it-department', len=-1, loc=-1, set=0 ) # organizational unit name
X509Name.add_entry_by_txt ( field='CN', type=MBSTRING_ASC, entry='Certificate client', len=-1, loc=-1, set=0 ) # common name
X509Name.add_entry_by_txt ( field='Email', type=MBSTRING_ASC, entry='user@localhost', len=-1, loc=-1, set=0 ) # pkcs9 email address
X509Name.add_entry_by_txt ( field='emailAddress', type=MBSTRING_ASC, entry='user@localhost', len=-1, loc=-1, set=0 ) # pkcs9 email address
self.X509Request.set_subject_name( X509Name )
#
# publickey
#
self.X509Request.set_pubkey ( pkey=self.PKey )
self.X509Request.sign ( pkey=self.PKey, md='sha1' )
#print(X509Request.as_text ())
def CreateX509Certificate ( self ):
#
# X509 CERTIFICATE
#
self.X509Certificate = X509.X509 ()
#
# version
#
self.X509Certificate.set_version ( 0 )
#
# time notBefore
#
ASN1 = ASN1.ASN1_TIME ()
ASN1.set_time ( 500 )
self.X509Certificate.set_not_before( ASN1 )
#
# time notAfter
#
ASN1 = ASN1.ASN1_TIME ()
ASN1.set_time ( 500 )
self.X509Certificate.set_not_after( ASN1 )
#
# public key
#
self.X509Certificate.set_pubkey ( pkey=self.PKey )
#
# subject
#
X509Name = self.X509Request.get_subject ()
#print(X509Name.entry_count ())
#print(X509Name.as_text ())
self.X509Certificate.set_subject_name( X509Name )
#
# issuer
#
X509Name = X509.X509_Name ( m2.x509_name_new () )
X509Name.add_entry_by_txt ( field='C', type=MBSTRING_ASC, entry='germany', len=-1, loc=-1, set=0 ) # country name
X509Name.add_entry_by_txt ( field='SP', type=MBSTRING_ASC, entry='bavaria', len=-1, loc=-1, set=0 ) # state of province name
X509Name.add_entry_by_txt ( field='L', type=MBSTRING_ASC, entry='munich', len=-1, loc=-1, set=0 ) # locality name
X509Name.add_entry_by_txt ( field='O', type=MBSTRING_ASC, entry='sbs', len=-1, loc=-1, set=0 ) # organization name
X509Name.add_entry_by_txt ( field='OU', type=MBSTRING_ASC, entry='it-department', len=-1, loc=-1, set=0 ) # organizational unit name
X509Name.add_entry_by_txt ( field='CN', type=MBSTRING_ASC, entry='Certificate Authority', len=-1, loc=-1, set=0 ) # common name
X509Name.add_entry_by_txt ( field='Email', type=MBSTRING_ASC, entry='admin@localhost', len=-1, loc=-1, set=0 ) # pkcs9 email address
X509Name.add_entry_by_txt ( field='emailAddress', type=MBSTRING_ASC, entry='admin@localhost', len=-1, loc=-1, set=0 ) # pkcs9 email address
#print(X509Name.entry_count ())
#print(X509Name.as_text ())
self.X509Certificate.set_issuer_name( X509Name )
#
# signing
#
self.X509Certificate.sign( pkey=self.PKey, md='sha1' )
print(self.X509Certificate.as_text ())
if __name__ == '__main__':
run = Cert ()
run.CreatePKey ()
run.CreateX509Request ()
run.CreateX509Certificate ()
|
