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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
#!/usr/bin/env python
# Copyright 2019 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""This script is called without any arguments to re-generate all of the *.pem
files in the script's directory.
The https://github.com/google/der-ascii tools must be in the PATH.
"""
import base64
import subprocess
import os
HEADER = "Generated by %s. Do not edit." % os.path.split(__file__)[1]
def Ascii2Der(txt):
p = subprocess.Popen(['ascii2der'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout_data, stderr_data = p.communicate(txt)
if p.returncode:
raise RuntimeError('ascii2der returned %i: %s' % (p.returncode,
stderr_data))
return stdout_data
def MakePemBlock(text, der, name):
b64 = base64.b64encode(der)
wrapped = '\n'.join(b64[pos:pos + 64] for pos in xrange(0, len(b64), 64))
return '%s\n\n%s\n-----BEGIN %s-----\n%s\n-----END %s-----' % (
HEADER, text, name, wrapped, name)
def Generate(path, dertext):
der = Ascii2Der(dertext)
data = MakePemBlock(dertext, der, 'AUTHORITY_KEY_IDENTIFIER')
with open(path, "w") as f:
f.write(data)
Generate('empty_sequence.pem', 'SEQUENCE {}')
Generate('key_identifier.pem', """
SEQUENCE {
[0 PRIMITIVE] { `DEADB00F`}
}
""")
Generate('issuer_and_serial.pem', """
SEQUENCE {
[1] {
[4] {
SEQUENCE {
SET {
SEQUENCE {
# commonName
OBJECT_IDENTIFIER { 2.5.4.3 }
UTF8String { "Root" }
}
}
}
}
}
[2 PRIMITIVE] { `274f` }
}
""")
Generate('url_issuer_and_serial.pem', """
SEQUENCE {
[1] {
[6 PRIMITIVE] { "http://example.com" }
}
[2 PRIMITIVE] { `274f` }
}
""")
Generate('key_identifier_and_issuer_and_serial.pem', """
SEQUENCE {
[0 PRIMITIVE] { `DEADB00F`}
[1] {
[4] {
SEQUENCE {
SET {
SEQUENCE {
# commonName
OBJECT_IDENTIFIER { 2.5.4.3 }
UTF8String { "Root" }
}
}
}
}
}
[2 PRIMITIVE] { `274f` }
}
""")
Generate('issuer_only.pem', """
SEQUENCE {
[1] {
[4] {
SEQUENCE {
SET {
SEQUENCE {
# commonName
OBJECT_IDENTIFIER { 2.5.4.3 }
UTF8String { "Root" }
}
}
}
}
}
}
""")
Generate('serial_only.pem', """
SEQUENCE {
[2 PRIMITIVE] { `274f` }
}
""")
Generate('invalid_contents.pem', """
SEQUENCE {
INTEGER {`1234`}
}
""")
Generate('invalid_key_identifier.pem', """
SEQUENCE {
# Tag and Length for [0 PRIMITIVE], but no data.
`8004`
}
""")
Generate('invalid_issuer.pem', """
SEQUENCE {
[0 PRIMITIVE] { `DEADB00F`}
# Tag and Length for [1] {...}, but no data.
`a104`
}
""")
Generate('invalid_serial.pem', """
SEQUENCE {
[0 PRIMITIVE] { `DEADB00F`}
[1] {}
# Tag and Length for [2 PRIMITIVE], but no data.
`8204`
}
""")
Generate('extra_contents_after_issuer_and_serial.pem', """
SEQUENCE {
[1] {
[4] {
SEQUENCE {
SET {
SEQUENCE {
# commonName
OBJECT_IDENTIFIER { 2.5.4.3 }
UTF8String { "Root" }
}
}
}
}
}
[2 PRIMITIVE] { `274f` }
INTEGER {`1234`}
}
""")
Generate('extra_contents_after_extension_sequence.pem', """
SEQUENCE {
[0 PRIMITIVE] { `DEADB00F`}
}
INTEGER {`1234`}
""")
|
