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 } 181