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:         }