selfsign.c revision 1.1.1.1 
1/* NOCW */
2/* cc -o ssdemo -I../include selfsign.c ../libcrypto.a */
3
4#include <stdio.h>
5#include <stdlib.h>
6
7#include <openssl/pem.h>
8#include <openssl/conf.h>
9#include <openssl/x509v3.h>
10
11int mkit(X509 **x509p, EVP_PKEY **pkeyp, int bits, int serial, int days);
12
13int main()
14	{
15	BIO *bio_err;
16	X509 *x509=NULL;
17	EVP_PKEY *pkey=NULL;
18
19	CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
20
21	bio_err=BIO_new_fp(stderr, BIO_NOCLOSE);
22
23	mkit(&x509,&pkey,512,0,365);
24
25	RSA_print_fp(stdout,pkey->pkey.rsa,0);
26	X509_print_fp(stdout,x509);
27
28	PEM_write_PrivateKey(stdout,pkey,NULL,NULL,0,NULL, NULL);
29	PEM_write_X509(stdout,x509);
30
31	X509_free(x509);
32	EVP_PKEY_free(pkey);
33
34#ifdef CUSTOM_EXT
35	/* Only needed if we add objects or custom extensions */
36	X509V3_EXT_cleanup();
37	OBJ_cleanup();
38#endif
39
40	CRYPTO_mem_leaks(bio_err);
41	BIO_free(bio_err);
42	return(0);
43	}
44
45#ifdef WIN16
46#  define MS_CALLBACK   _far _loadds
47#  define MS_FAR        _far
48#else
49#  define MS_CALLBACK
50#  define MS_FAR
51#endif
52
53static void MS_CALLBACK callback(p, n, arg)
54int p;
55int n;
56void *arg;
57	{
58	char c='B';
59
60	if (p == 0) c='.';
61	if (p == 1) c='+';
62	if (p == 2) c='*';
63	if (p == 3) c='\n';
64	fputc(c,stderr);
65	}
66
67int mkit(x509p,pkeyp,bits,serial,days)
68X509 **x509p;
69EVP_PKEY **pkeyp;
70int bits;
71int serial;
72int days;
73	{
74	X509 *x;
75	EVP_PKEY *pk;
76	RSA *rsa;
77	X509_NAME *name=NULL;
78	X509_NAME_ENTRY *ne=NULL;
79	X509_EXTENSION *ex=NULL;
80
81
82	if ((pkeyp == NULL) || (*pkeyp == NULL))
83		{
84		if ((pk=EVP_PKEY_new()) == NULL)
85			{
86			abort();
87			return(0);
88			}
89		}
90	else
91		pk= *pkeyp;
92
93	if ((x509p == NULL) || (*x509p == NULL))
94		{
95		if ((x=X509_new()) == NULL)
96			goto err;
97		}
98	else
99		x= *x509p;
100
101	rsa=RSA_generate_key(bits,RSA_F4,callback,NULL);
102	if (!EVP_PKEY_assign_RSA(pk,rsa))
103		{
104		abort();
105		goto err;
106		}
107	rsa=NULL;
108
109	X509_set_version(x,3);
110	ASN1_INTEGER_set(X509_get_serialNumber(x),serial);
111	X509_gmtime_adj(X509_get_notBefore(x),0);
112	X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days);
113	X509_set_pubkey(x,pk);
114
115	name=X509_get_subject_name(x);
116
117	/* This function creates and adds the entry, working out the
118	 * correct string type and performing checks on its length.
119	 * Normally we'd check the return value for errors...
120	 */
121	X509_NAME_add_entry_by_txt(name,"C",
122				MBSTRING_ASC, "UK", -1, -1, 0);
123	X509_NAME_add_entry_by_txt(name,"CN",
124				MBSTRING_ASC, "OpenSSL Group", -1, -1, 0);
125
126	X509_set_issuer_name(x,name);
127
128	/* Add extension using V3 code: we can set the config file as NULL
129	 * because we wont reference any other sections. We can also set
130         * the context to NULL because none of these extensions below will need
131	 * to access it.
132	 */
133
134	ex = X509V3_EXT_conf_nid(NULL, NULL, NID_netscape_cert_type, "server");
135	X509_add_ext(x,ex,-1);
136	X509_EXTENSION_free(ex);
137
138	ex = X509V3_EXT_conf_nid(NULL, NULL, NID_netscape_comment,
139						"example comment extension");
140	X509_add_ext(x,ex,-1);
141	X509_EXTENSION_free(ex);
142
143	ex = X509V3_EXT_conf_nid(NULL, NULL, NID_netscape_ssl_server_name,
144							"www.openssl.org");
145
146	X509_add_ext(x,ex,-1);
147	X509_EXTENSION_free(ex);
148
149#if 0
150	/* might want something like this too.... */
151	ex = X509V3_EXT_conf_nid(NULL, NULL, NID_basic_constraints,
152							"critical,CA:TRUE");
153
154
155	X509_add_ext(x,ex,-1);
156	X509_EXTENSION_free(ex);
157#endif
158
159#ifdef CUSTOM_EXT
160	/* Maybe even add our own extension based on existing */
161	{
162		int nid;
163		nid = OBJ_create("1.2.3.4", "MyAlias", "My Test Alias Extension");
164		X509V3_EXT_add_alias(nid, NID_netscape_comment);
165		ex = X509V3_EXT_conf_nid(NULL, NULL, nid,
166						"example comment alias");
167		X509_add_ext(x,ex,-1);
168		X509_EXTENSION_free(ex);
169	}
170#endif
171
172	if (!X509_sign(x,pk,EVP_md5()))
173		goto err;
174
175	*x509p=x;
176	*pkeyp=pk;
177	return(1);
178err:
179	return(0);
180	}
181