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https://github.com/openssl/openssl.git
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Add certificate and request demos.
Fix X509V3 macro so they compile.
This commit is contained in:
Dr. Stephen Henson
parent
c0f5dd070b
commit
96bd6f730a
3
CHANGES
3
CHANGES
@ -12,6 +12,9 @@
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*) applies to 0.9.6a/0.9.6b/0.9.6c and 0.9.7
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+) applies to 0.9.7 only
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+) Add some demos for certificate and certificate request creation.
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[Steve Henson]
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+) Make maximum certificate chain size accepted from the peer application
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settable (SSL*_get/set_max_cert_list()), as proposed by
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"Douglas E. Engert" <deengert@anl.gov>.
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@ -292,7 +292,7 @@ DECLARE_ASN1_SET_OF(POLICYINFO)
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#define X509V3_set_ctx_test(ctx) \
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X509V3_set_ctx(ctx, NULL, NULL, NULL, NULL, CTX_TEST)
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#define X509V3_set_ctx_nodb(ctx) ctx->db = NULL;
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#define X509V3_set_ctx_nodb(ctx) (ctx)->db = NULL;
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#define EXT_BITSTRING(nid, table) { nid, 0, ASN1_ITEM_ref(ASN1_BIT_STRING), \
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0,0,0,0, \
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3
demos/x509/README
Normal file
3
demos/x509/README
Normal file
@ -0,0 +1,3 @@
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This directory contains examples of how to contruct
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various X509 structures. Certificates, certificate requests
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and CRLs.
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168
demos/x509/mkcert.c
Normal file
168
demos/x509/mkcert.c
Normal file
@ -0,0 +1,168 @@
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/* Certificate creation. Demonstrates some certificate related
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* operations.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <openssl/pem.h>
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#include <openssl/conf.h>
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#include <openssl/x509v3.h>
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#include <openssl/engine.h>
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int mkcert(X509 **x509p, EVP_PKEY **pkeyp, int bits, int serial, int days);
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int add_ext(X509 *cert, int nid, char *value);
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int main(int argc, char **argv)
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{
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BIO *bio_err;
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X509 *x509=NULL;
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EVP_PKEY *pkey=NULL;
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CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
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bio_err=BIO_new_fp(stderr, BIO_NOCLOSE);
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mkcert(&x509,&pkey,512,0,365);
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RSA_print_fp(stdout,pkey->pkey.rsa,0);
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X509_print_fp(stdout,x509);
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PEM_write_PrivateKey(stdout,pkey,NULL,NULL,0,NULL, NULL);
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PEM_write_X509(stdout,x509);
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X509_free(x509);
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EVP_PKEY_free(pkey);
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ENGINE_cleanup();
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CRYPTO_cleanup_all_ex_data();
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CRYPTO_mem_leaks(bio_err);
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BIO_free(bio_err);
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return(0);
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}
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static void callback(int p, int n, void *arg)
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{
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char c='B';
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if (p == 0) c='.';
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if (p == 1) c='+';
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if (p == 2) c='*';
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if (p == 3) c='\n';
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fputc(c,stderr);
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}
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int mkcert(X509 **x509p, EVP_PKEY **pkeyp, int bits, int serial, int days)
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{
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X509 *x;
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EVP_PKEY *pk;
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RSA *rsa;
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X509_NAME *name=NULL;
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if ((pkeyp == NULL) || (*pkeyp == NULL))
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{
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if ((pk=EVP_PKEY_new()) == NULL)
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{
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abort();
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return(0);
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}
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}
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else
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pk= *pkeyp;
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if ((x509p == NULL) || (*x509p == NULL))
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{
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if ((x=X509_new()) == NULL)
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goto err;
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}
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else
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x= *x509p;
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rsa=RSA_generate_key(bits,RSA_F4,callback,NULL);
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if (!EVP_PKEY_assign_RSA(pk,rsa))
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{
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abort();
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goto err;
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}
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rsa=NULL;
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X509_set_version(x,3);
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ASN1_INTEGER_set(X509_get_serialNumber(x),serial);
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X509_gmtime_adj(X509_get_notBefore(x),0);
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X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days);
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X509_set_pubkey(x,pk);
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name=X509_get_subject_name(x);
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/* This function creates and adds the entry, working out the
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* correct string type and performing checks on its length.
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* Normally we'd check the return value for errors...
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*/
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X509_NAME_add_entry_by_txt(name,"C",
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MBSTRING_ASC, "UK", -1, -1, 0);
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X509_NAME_add_entry_by_txt(name,"CN",
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MBSTRING_ASC, "OpenSSL Group", -1, -1, 0);
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/* Its self signed so set the issuer name to be the same as the
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* subject.
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*/
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X509_set_issuer_name(x,name);
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/* Add various extensions: standard extensions */
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add_ext(x, NID_basic_constraints, "critical,CA:TRUE");
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add_ext(x, NID_key_usage, "critical,keyCertSign,cRLSign");
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add_ext(x, NID_subject_key_identifier, "hash");
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/* Some Netscape specific extensions */
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add_ext(x, NID_netscape_cert_type, "sslCA");
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add_ext(x, NID_netscape_comment, "example comment extension");
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#ifdef CUSTOM_EXT
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/* Maybe even add our own extension based on existing */
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{
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int nid;
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nid = OBJ_create("1.2.3.4", "MyAlias", "My Test Alias Extension");
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X509V3_EXT_add_alias(nid, NID_netscape_comment);
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add_ext(x, nid, "example comment alias");
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}
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#endif
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if (!X509_sign(x,pk,EVP_md5()))
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goto err;
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*x509p=x;
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*pkeyp=pk;
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return(1);
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err:
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return(0);
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}
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/* Add extension using V3 code: we can set the config file as NULL
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* because we wont reference any other sections.
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*/
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int add_ext(X509 *cert, int nid, char *value)
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{
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X509_EXTENSION *ex;
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X509V3_CTX ctx;
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/* This sets the 'context' of the extensions. */
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/* No configuration database */
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X509V3_set_ctx_nodb(&ctx);
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/* Issuer and subject certs: both the target since it is self signed,
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* no request and no CRL
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*/
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X509V3_set_ctx(&ctx, cert, cert, NULL, NULL, 0);
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ex = X509V3_EXT_conf_nid(NULL, &ctx, nid, value);
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if (!ex)
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return 0;
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X509_add_ext(cert,ex,-1);
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X509_EXTENSION_free(ex);
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return 1;
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}
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157
demos/x509/mkreq.c
Normal file
157
demos/x509/mkreq.c
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@ -0,0 +1,157 @@
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/* Certificate request creation. Demonstrates some request related
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* operations.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <openssl/pem.h>
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#include <openssl/conf.h>
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#include <openssl/x509v3.h>
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#include <openssl/engine.h>
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int mkreq(X509_REQ **x509p, EVP_PKEY **pkeyp, int bits, int serial, int days);
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int add_ext(STACK_OF(X509_REQUEST) *sk, int nid, char *value);
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int main(int argc, char **argv)
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{
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BIO *bio_err;
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X509_REQ *req=NULL;
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EVP_PKEY *pkey=NULL;
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CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
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bio_err=BIO_new_fp(stderr, BIO_NOCLOSE);
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mkreq(&req,&pkey,512,0,365);
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RSA_print_fp(stdout,pkey->pkey.rsa,0);
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X509_REQ_print_fp(stdout,req);
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PEM_write_X509_REQ(stdout,req);
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X509_REQ_free(req);
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EVP_PKEY_free(pkey);
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ENGINE_cleanup();
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CRYPTO_cleanup_all_ex_data();
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CRYPTO_mem_leaks(bio_err);
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BIO_free(bio_err);
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return(0);
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}
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static void callback(int p, int n, void *arg)
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{
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char c='B';
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if (p == 0) c='.';
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if (p == 1) c='+';
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if (p == 2) c='*';
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if (p == 3) c='\n';
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fputc(c,stderr);
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}
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int mkreq(X509_REQ **req, EVP_PKEY **pkeyp, int bits, int serial, int days)
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{
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X509_REQ *x;
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EVP_PKEY *pk;
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RSA *rsa;
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X509_NAME *name=NULL;
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STACK_OF(X509_EXTENSION) *exts = NULL;
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if ((pk=EVP_PKEY_new()) == NULL)
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goto err;
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if ((x=X509_REQ_new()) == NULL)
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goto err;
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rsa=RSA_generate_key(bits,RSA_F4,callback,NULL);
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if (!EVP_PKEY_assign_RSA(pk,rsa))
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goto err;
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rsa=NULL;
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X509_REQ_set_pubkey(x,pk);
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name=X509_REQ_get_subject_name(x);
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/* This function creates and adds the entry, working out the
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* correct string type and performing checks on its length.
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* Normally we'd check the return value for errors...
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*/
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X509_NAME_add_entry_by_txt(name,"C",
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MBSTRING_ASC, "UK", -1, -1, 0);
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X509_NAME_add_entry_by_txt(name,"CN",
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MBSTRING_ASC, "OpenSSL Group", -1, -1, 0);
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#ifdef REQUEST_EXTENSIONS
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/* Certificate requests can contain extensions, which can be used
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* to indicate the extensions the requestor would like added to
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* their certificate. CAs might ignore them however or even choke
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* if they are present.
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*/
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/* For request extensions they are all packed in a single attribute.
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* We save them in a STACK and add them all at once later...
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*/
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exts = sk_X509_EXTENSION_new_null();
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/* Standard extenions */
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add_ext(exts, NID_key_usage, "critical,digitalSignature,keyEncipherment");
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/* This is a typical use for request extensions: requesting a value for
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* subject alternative name.
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*/
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add_ext(exts, NID_subject_alt_name, "email:steve@openssl.org");
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/* Some Netscape specific extensions */
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add_ext(exts, NID_netscape_cert_type, "client,email");
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#ifdef CUSTOM_EXT
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/* Maybe even add our own extension based on existing */
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{
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int nid;
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nid = OBJ_create("1.2.3.4", "MyAlias", "My Test Alias Extension");
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X509V3_EXT_add_alias(nid, NID_netscape_comment);
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add_ext(x, nid, "example comment alias");
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}
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#endif
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/* Now we've created the extensions we add them to the request */
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X509_REQ_add_extensions(x, exts);
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sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
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#endif
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if (!X509_REQ_sign(x,pk,EVP_md5()))
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goto err;
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*req=x;
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*pkeyp=pk;
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return(1);
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err:
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return(0);
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}
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/* Add extension using V3 code: we can set the config file as NULL
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* because we wont reference any other sections.
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*/
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int add_ext(STACK_OF(X509_REQUEST) *sk, int nid, char *value)
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{
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X509_EXTENSION *ex;
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ex = X509V3_EXT_conf_nid(NULL, NULL, nid, value);
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if (!ex)
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return 0;
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sk_X509_EXTENSION_push(sk, ex);
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return 1;
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}
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