diff options
Diffstat (limited to 'openssl/demos/selfsign.c')
| -rw-r--r-- | openssl/demos/selfsign.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/openssl/demos/selfsign.c b/openssl/demos/selfsign.c new file mode 100644 index 0000000..d611334 --- /dev/null +++ b/openssl/demos/selfsign.c @@ -0,0 +1,176 @@ +/* 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); +} |