diff options
Diffstat (limited to 'openssl/demos/selfsign.c')
| -rw-r--r-- | openssl/demos/selfsign.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/openssl/demos/selfsign.c b/openssl/demos/selfsign.c new file mode 100644 index 000000000..68904c611 --- /dev/null +++ b/openssl/demos/selfsign.c @@ -0,0 +1,180 @@ +/* NOCW */ +/* cc -o ssdemo -I../include selfsign.c ../libcrypto.a */ + +#include <stdio.h> +#include <stdlib.h> + +#include <openssl/pem.h> +#include <openssl/conf.h> +#include <openssl/x509v3.h> + +int mkit(X509 **x509p, EVP_PKEY **pkeyp, int bits, int serial, int days); + +int main() + { + BIO *bio_err; + X509 *x509=NULL; + EVP_PKEY *pkey=NULL; + + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON); + + bio_err=BIO_new_fp(stderr, BIO_NOCLOSE); + + mkit(&x509,&pkey,512,0,365); + + RSA_print_fp(stdout,pkey->pkey.rsa,0); + X509_print_fp(stdout,x509); + + PEM_write_PrivateKey(stdout,pkey,NULL,NULL,0,NULL, NULL); + PEM_write_X509(stdout,x509); + + X509_free(x509); + EVP_PKEY_free(pkey); + +#ifdef CUSTOM_EXT + /* Only needed if we add objects or custom extensions */ + X509V3_EXT_cleanup(); + OBJ_cleanup(); +#endif + + CRYPTO_mem_leaks(bio_err); + BIO_free(bio_err); + return(0); + } + +#ifdef WIN16 +# define MS_CALLBACK _far _loadds +# define MS_FAR _far +#else +# define MS_CALLBACK +# define MS_FAR +#endif + +static void MS_CALLBACK callback(p, n, arg) +int p; +int n; +void *arg; + { + char c='B'; + + if (p == 0) c='.'; + if (p == 1) c='+'; + if (p == 2) c='*'; + if (p == 3) c='\n'; + fputc(c,stderr); + } + +int mkit(x509p,pkeyp,bits,serial,days) +X509 **x509p; +EVP_PKEY **pkeyp; +int bits; +int serial; +int days; + { + X509 *x; + EVP_PKEY *pk; + RSA *rsa; + X509_NAME *name=NULL; + X509_NAME_ENTRY *ne=NULL; + X509_EXTENSION *ex=NULL; + + + if ((pkeyp == NULL) || (*pkeyp == NULL)) + { + if ((pk=EVP_PKEY_new()) == NULL) + { + abort(); + return(0); + } + } + else + pk= *pkeyp; + + if ((x509p == NULL) || (*x509p == NULL)) + { + if ((x=X509_new()) == NULL) + goto err; + } + else + x= *x509p; + + rsa=RSA_generate_key(bits,RSA_F4,callback,NULL); + if (!EVP_PKEY_assign_RSA(pk,rsa)) + { + abort(); + goto err; + } + rsa=NULL; + + X509_set_version(x,3); + ASN1_INTEGER_set(X509_get_serialNumber(x),serial); + X509_gmtime_adj(X509_get_notBefore(x),0); + X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days); + X509_set_pubkey(x,pk); + + name=X509_get_subject_name(x); + + /* This function creates and adds the entry, working out the + * correct string type and performing checks on its length. + * Normally we'd check the return value for errors... + */ + X509_NAME_add_entry_by_txt(name,"C", + MBSTRING_ASC, "UK", -1, -1, 0); + X509_NAME_add_entry_by_txt(name,"CN", + MBSTRING_ASC, "OpenSSL Group", -1, -1, 0); + + X509_set_issuer_name(x,name); + + /* Add extension using V3 code: we can set the config file as NULL + * because we wont reference any other sections. We can also set + * the context to NULL because none of these extensions below will need + * to access it. + */ + + ex = X509V3_EXT_conf_nid(NULL, NULL, NID_netscape_cert_type, "server"); + X509_add_ext(x,ex,-1); + X509_EXTENSION_free(ex); + + ex = X509V3_EXT_conf_nid(NULL, NULL, NID_netscape_comment, + "example comment extension"); + X509_add_ext(x,ex,-1); + X509_EXTENSION_free(ex); + + ex = X509V3_EXT_conf_nid(NULL, NULL, NID_netscape_ssl_server_name, + "www.openssl.org"); + + X509_add_ext(x,ex,-1); + X509_EXTENSION_free(ex); + +#if 0 + /* might want something like this too.... */ + ex = X509V3_EXT_conf_nid(NULL, NULL, NID_basic_constraints, + "critical,CA:TRUE"); + + + X509_add_ext(x,ex,-1); + X509_EXTENSION_free(ex); +#endif + +#ifdef CUSTOM_EXT + /* Maybe even add our own extension based on existing */ + { + int nid; + nid = OBJ_create("1.2.3.4", "MyAlias", "My Test Alias Extension"); + X509V3_EXT_add_alias(nid, NID_netscape_comment); + ex = X509V3_EXT_conf_nid(NULL, NULL, nid, + "example comment alias"); + X509_add_ext(x,ex,-1); + X509_EXTENSION_free(ex); + } +#endif + + if (!X509_sign(x,pk,EVP_md5())) + goto err; + + *x509p=x; + *pkeyp=pk; + return(1); +err: + return(0); + } |