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         X509V3_add_standard_extensions();
  22
  23         if ((bio_err=BIO_new(BIO_s_file())) != NULL)
  24                 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE);
  25
  26         mkit(&x509,&pkey,512,0,365);
  27
  28         RSA_print_fp(stdout,pkey->pkey.rsa,0);
  29         X509_print_fp(stdout,x509);
  30
  31         PEM_write_RSAPrivateKey(stdout,pkey->pkey.rsa,NULL,NULL,0,NULL);
  32         PEM_write_X509(stdout,x509);
  33
  34         X509_free(x509);
  35         EVP_PKEY_free(pkey);
  36         BIO_free(bio_err);
  37
  38         X509V3_EXT_cleanup();
  39
  40         CRYPTO_mem_leaks(bio_err);
  41         return(0);
  42         }
  43
  44 #ifdef WIN16
  45 #  define MS_CALLBACK   _far _loadds
  46 #  define MS_FAR        _far
  47 #else
  48 #  define MS_CALLBACK
  49 #  define MS_FAR
  50 #endif
  51
  52 static void MS_CALLBACK callback(p, n, arg)
  53 int p;
  54 int n;
  55 void *arg;
  56         {
  57         char c='B';
  58
  59         if (p == 0) c='.';
  60         if (p == 1) c='+';
  61         if (p == 2) c='*';
  62         if (p == 3) c='\n';
  63         fputc(c,stderr);
  64         }
  65
  66 int mkit(x509p,pkeyp,bits,serial,days)
  67 X509 **x509p;
  68 EVP_PKEY **pkeyp;
  69 int bits;
  70 int serial;
  71 int days;
  72         {
  73         X509 *x;
  74         EVP_PKEY *pk;
  75         RSA *rsa;
  76         X509_NAME *name=NULL;
  77         X509_NAME_ENTRY *ne=NULL;
  78         X509_EXTENSION *ex=NULL;
  79
  80
  81         if ((pkeyp == NULL) || (*pkeyp == NULL))
  82                 {
  83                 if ((pk=EVP_PKEY_new()) == NULL)
  84                         {
  85                         abort();
  86                         return(0);
  87                         }
  88                 }
  89         else
  90                 pk= *pkeyp;
  91
  92         if ((x509p == NULL) || (*x509p == NULL))
  93                 {
  94                 if ((x=X509_new()) == NULL)
  95                         goto err;
  96                 }
  97         else
  98                 x= *x509p;
  99
 100         rsa=RSA_generate_key(bits,RSA_F4,callback,NULL);
 101         if (!EVP_PKEY_assign_RSA(pk,rsa))
 102                 {
 103                 abort();
 104                 goto err;
 105                 }
 106         rsa=NULL;
 107
 108         X509_set_version(x,3);
 109         ASN1_INTEGER_set(X509_get_serialNumber(x),serial);
 110         X509_gmtime_adj(X509_get_notBefore(x),0);
 111         X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days);
 112         X509_set_pubkey(x,pk);
 113
 114         name=X509_NAME_new();
 115
 116         ne=X509_NAME_ENTRY_create_by_NID(NULL,NID_countryName,
 117                 V_ASN1_APP_CHOOSE,"AU",-1);
 118         X509_NAME_add_entry(name,ne,0,0);
 119
 120         X509_NAME_ENTRY_create_by_NID(&ne,NID_commonName,
 121                 V_ASN1_APP_CHOOSE,"Eric Young",-1);
 122         X509_NAME_add_entry(name,ne,1,0);
 123
 124         /* finished with structure */
 125         X509_NAME_ENTRY_free(ne);
 126
 127         X509_set_subject_name(x,name);
 128         X509_set_issuer_name(x,name);
 129
 130         /* finished with structure */
 131         X509_NAME_free(name);
 132
 133         /* Add extension using V3 code: we can set the config file as NULL
 134          * because we wont reference any other sections. We can also set
 135          * the context to NULL because none of these extensions below will need
 136          * to access it.
 137          */
 138
 139         ex = X509V3_EXT_conf_nid(NULL, NULL, NID_netscape_cert_type, "server");
 140         X509_add_ext(x,ex,-1);
 141
 142         ex = X509V3_EXT_conf_nid(NULL, NULL, NID_netscape_comment,
 143                                                 "example comment extension");
 144         X509_add_ext(x,ex,-1);
 145
 146         ex = X509V3_EXT_conf_nid(NULL, NULL, NID_netscape_ssl_server_name,
 147                                                         "www.openssl.org");
 148
 149         X509_add_ext(x,ex,-1);
 150
 151 #if 0
 152         /* might want something like this too.... */
 153         ex = X509V3_EXT_conf_nid(NULL, NULL, NID_basic_constraints,
 154                                                         "critical,CA:TRUE");
 155
 156
 157         X509_add_ext(x,ex,-1);
 158 #endif
 159
 160         if (!X509_sign(x,pk,EVP_md5()))
 161                 goto err;
 162
 163         *x509p=x;
 164         *pkeyp=pk;
 165         return(1);
 166 err:
 167         return(0);
 168         }