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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
/*
* Copyright (C) 2009 Martin Willi
* Copyright (C) 2009 Andreas Steffen
*
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include <time.h>
#include "pki.h"
#include <collections/linked_list.h>
#include <credentials/certificates/certificate.h>
/**
* Create a self-signed PKCS#10 certificate requesst.
*/
static int req()
{
cred_encoding_type_t form = CERT_ASN1_DER;
key_type_t type = KEY_RSA;
hash_algorithm_t digest = HASH_SHA1;
certificate_t *cert = NULL;
private_key_t *private = NULL;
char *file = NULL, *dn = NULL, *error = NULL;
identification_t *id = NULL;
linked_list_t *san;
chunk_t encoding = chunk_empty;
chunk_t challenge_password = chunk_empty;
char *arg;
san = linked_list_create();
while (TRUE)
{
switch (command_getopt(&arg))
{
case 'h':
goto usage;
case 't':
if (streq(arg, "rsa"))
{
type = KEY_RSA;
}
else if (streq(arg, "ecdsa"))
{
type = KEY_ECDSA;
}
else
{
error = "invalid input type";
goto usage;
}
continue;
case 'g':
digest = enum_from_name(hash_algorithm_short_names, arg);
if (digest == -1)
{
error = "invalid --digest type";
goto usage;
}
continue;
case 'i':
file = arg;
continue;
case 'd':
dn = arg;
continue;
case 'a':
san->insert_last(san, identification_create_from_string(arg));
continue;
case 'p':
challenge_password = chunk_create(arg, strlen(arg));
continue;
case 'f':
if (!get_form(arg, &form, CRED_CERTIFICATE))
{
error = "invalid output format";
goto usage;
}
continue;
case EOF:
break;
default:
error = "invalid --req option";
goto usage;
}
break;
}
if (!dn)
{
error = "--dn is required";
goto usage;
}
id = identification_create_from_string(dn);
if (id->get_type(id) != ID_DER_ASN1_DN)
{
error = "supplied --dn is not a distinguished name";
goto end;
}
if (file)
{
private = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, type,
BUILD_FROM_FILE, file, BUILD_END);
}
else
{
chunk_t chunk;
chunk = chunk_from_fd(0);
private = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, type,
BUILD_BLOB, chunk, BUILD_END);
free(chunk.ptr);
}
if (!private)
{
error = "parsing private key failed";
goto end;
}
cert = lib->creds->create(lib->creds, CRED_CERTIFICATE, CERT_PKCS10_REQUEST,
BUILD_SIGNING_KEY, private,
BUILD_SUBJECT, id,
BUILD_SUBJECT_ALTNAMES, san,
BUILD_CHALLENGE_PWD, challenge_password,
BUILD_DIGEST_ALG, digest,
BUILD_END);
if (!cert)
{
error = "generating certificate request failed";
goto end;
}
if (!cert->get_encoding(cert, form, &encoding))
{
error = "encoding certificate request failed";
goto end;
}
if (fwrite(encoding.ptr, encoding.len, 1, stdout) != 1)
{
error = "writing certificate request failed";
goto end;
}
end:
DESTROY_IF(id);
DESTROY_IF(cert);
DESTROY_IF(private);
san->destroy_offset(san, offsetof(identification_t, destroy));
free(encoding.ptr);
if (error)
{
fprintf(stderr, "%s\n", error);
return 1;
}
return 0;
usage:
san->destroy_offset(san, offsetof(identification_t, destroy));
return command_usage(error);
}
/**
* Register the command.
*/
static void __attribute__ ((constructor))reg()
{
command_register((command_t) {
req, 'r', "req",
"create a PKCS#10 certificate request",
{" [--in file] [--type rsa|ecdsa] --dn distinguished-name",
"[--san subjectAltName]+ [--password challengePassword]",
"[--digest md5|sha1|sha224|sha256|sha384|sha512] [--outform der|pem]"},
{
{"help", 'h', 0, "show usage information"},
{"in", 'i', 1, "private key input file, default: stdin"},
{"type", 't', 1, "type of input key, default: rsa"},
{"dn", 'd', 1, "subject distinguished name"},
{"san", 'a', 1, "subjectAltName to include in cert request"},
{"password",'p', 1, "challengePassword to include in cert request"},
{"digest", 'g', 1, "digest for signature creation, default: sha1"},
{"outform", 'f', 1, "encoding of generated request, default: der"},
}
});
}
|
