demos/selfsign.c

   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
  11 int mkit(X509 **x509p, EVP_PKEY **pkeyp, int bits, int serial, int days);
  12
  13 int 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
  53 static void MS_CALLBACK callback(p, n, arg)
  54 int p;
  55 int n;
  56 void *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
  67 int mkit(x509p,pkeyp,bits,serial,days)
  68 X509 **x509p;
  69 EVP_PKEY **pkeyp;
  70 int bits;
  71 int serial;
  72 int 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);
 178 err:
 179         return(0);
 180         }