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Add the possibility to build without the ENGINE framework.
[thirdparty/openssl.git] / demos / x509 / mkcert.c
1 /* Certificate creation. Demonstrates some certificate related
2 * operations.
3 */
4
5
6 #include <stdio.h>
7 #include <stdlib.h>
8
9 #include <openssl/pem.h>
10 #include <openssl/conf.h>
11 #include <openssl/x509v3.h>
12 #ifndef OPENSSL_NO_ENGINE
13 #include <openssl/engine.h>
14 #endif
15
16 int mkcert(X509 **x509p, EVP_PKEY **pkeyp, int bits, int serial, int days);
17 int add_ext(X509 *cert, int nid, char *value);
18
19 int main(int argc, char **argv)
20 {
21 BIO *bio_err;
22 X509 *x509=NULL;
23 EVP_PKEY *pkey=NULL;
24
25 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
26
27 bio_err=BIO_new_fp(stderr, BIO_NOCLOSE);
28
29 mkcert(&x509,&pkey,512,0,365);
30
31 RSA_print_fp(stdout,pkey->pkey.rsa,0);
32 X509_print_fp(stdout,x509);
33
34 PEM_write_PrivateKey(stdout,pkey,NULL,NULL,0,NULL, NULL);
35 PEM_write_X509(stdout,x509);
36
37 X509_free(x509);
38 EVP_PKEY_free(pkey);
39
40 #ifndef OPENSSL_NO_ENGINE
41 ENGINE_cleanup();
42 #endif
43 CRYPTO_cleanup_all_ex_data();
44
45 CRYPTO_mem_leaks(bio_err);
46 BIO_free(bio_err);
47 return(0);
48 }
49
50 static void callback(int p, int n, void *arg)
51 {
52 char c='B';
53
54 if (p == 0) c='.';
55 if (p == 1) c='+';
56 if (p == 2) c='*';
57 if (p == 3) c='\n';
58 fputc(c,stderr);
59 }
60
61 int mkcert(X509 **x509p, EVP_PKEY **pkeyp, int bits, int serial, int days)
62 {
63 X509 *x;
64 EVP_PKEY *pk;
65 RSA *rsa;
66 X509_NAME *name=NULL;
67
68 if ((pkeyp == NULL) || (*pkeyp == NULL))
69 {
70 if ((pk=EVP_PKEY_new()) == NULL)
71 {
72 abort();
73 return(0);
74 }
75 }
76 else
77 pk= *pkeyp;
78
79 if ((x509p == NULL) || (*x509p == NULL))
80 {
81 if ((x=X509_new()) == NULL)
82 goto err;
83 }
84 else
85 x= *x509p;
86
87 rsa=RSA_generate_key(bits,RSA_F4,callback,NULL);
88 if (!EVP_PKEY_assign_RSA(pk,rsa))
89 {
90 abort();
91 goto err;
92 }
93 rsa=NULL;
94
95 X509_set_version(x,2);
96 ASN1_INTEGER_set(X509_get_serialNumber(x),serial);
97 X509_gmtime_adj(X509_get_notBefore(x),0);
98 X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days);
99 X509_set_pubkey(x,pk);
100
101 name=X509_get_subject_name(x);
102
103 /* This function creates and adds the entry, working out the
104 * correct string type and performing checks on its length.
105 * Normally we'd check the return value for errors...
106 */
107 X509_NAME_add_entry_by_txt(name,"C",
108 MBSTRING_ASC, "UK", -1, -1, 0);
109 X509_NAME_add_entry_by_txt(name,"CN",
110 MBSTRING_ASC, "OpenSSL Group", -1, -1, 0);
111
112 /* Its self signed so set the issuer name to be the same as the
113 * subject.
114 */
115 X509_set_issuer_name(x,name);
116
117 /* Add various extensions: standard extensions */
118 add_ext(x, NID_basic_constraints, "critical,CA:TRUE");
119 add_ext(x, NID_key_usage, "critical,keyCertSign,cRLSign");
120
121 add_ext(x, NID_subject_key_identifier, "hash");
122
123 /* Some Netscape specific extensions */
124 add_ext(x, NID_netscape_cert_type, "sslCA");
125
126 add_ext(x, NID_netscape_comment, "example comment extension");
127
128
129 #ifdef CUSTOM_EXT
130 /* Maybe even add our own extension based on existing */
131 {
132 int nid;
133 nid = OBJ_create("1.2.3.4", "MyAlias", "My Test Alias Extension");
134 X509V3_EXT_add_alias(nid, NID_netscape_comment);
135 add_ext(x, nid, "example comment alias");
136 }
137 #endif
138
139 if (!X509_sign(x,pk,EVP_md5()))
140 goto err;
141
142 *x509p=x;
143 *pkeyp=pk;
144 return(1);
145 err:
146 return(0);
147 }
148
149 /* Add extension using V3 code: we can set the config file as NULL
150 * because we wont reference any other sections.
151 */
152
153 int add_ext(X509 *cert, int nid, char *value)
154 {
155 X509_EXTENSION *ex;
156 X509V3_CTX ctx;
157 /* This sets the 'context' of the extensions. */
158 /* No configuration database */
159 X509V3_set_ctx_nodb(&ctx);
160 /* Issuer and subject certs: both the target since it is self signed,
161 * no request and no CRL
162 */
163 X509V3_set_ctx(&ctx, cert, cert, NULL, NULL, 0);
164 ex = X509V3_EXT_conf_nid(NULL, &ctx, nid, value);
165 if (!ex)
166 return 0;
167
168 X509_add_ext(cert,ex,-1);
169 X509_EXTENSION_free(ex);
170 return 1;
171 }
172