3 #include <openssl/ssl.h>
4 #include <openssl/bio.h>
5 #include <openssl/x509v3.h>
7 X509Req::X509Req( X509_REQ* csr ) {
8 req = std::shared_ptr<X509_REQ>( csr, X509_REQ_free );
9 EVP_PKEY* pkt = X509_REQ_get_pubkey( req.get() );
12 throw "Error extracting public key";
15 pk = std::shared_ptr<EVP_PKEY>( pkt, EVP_PKEY_free );
18 int X509Req::verify() {
19 return X509_REQ_verify( req.get(), pk.get() );
22 std::shared_ptr<EVP_PKEY> X509Req::getPkey() {
26 std::shared_ptr<X509Req> X509Req::parse( std::string filename ) {
27 std::shared_ptr<BIO> in = std::shared_ptr<BIO>( BIO_new_mem_buf( const_cast<char*>( filename.c_str() ), -1 ), BIO_free );
28 X509_REQ* req = PEM_read_bio_X509_REQ( in.get(), NULL, NULL, NULL );
31 throw "Error parsing CSR";
34 return std::shared_ptr<X509Req>( new X509Req( req ) );
37 int add_ext( std::shared_ptr<X509> issuer, std::shared_ptr<X509> subj, int nid, const char* value ) {
41 /* This sets the 'context' of the extensions. */
42 /* No configuration database */
43 X509V3_set_ctx_nodb( &ctx );
45 /* Issuer and subject certs: both the target since it is self signed,
46 * no request and no CRL
48 X509V3_set_ctx( &ctx, issuer.get(), subj.get(), NULL, NULL, 0 );
49 ex = X509V3_EXT_conf_nid( NULL, &ctx, nid, const_cast<char*>( value ) );
55 X509_add_ext( subj.get(), ex, -1 );
56 X509_EXTENSION_free( ex );
61 X509Cert::X509Cert() {
65 throw "malloc failed";
68 target = std::shared_ptr<X509>( c, X509_free );
70 if( !X509_set_version( c, 2 ) ) {
71 throw "Setting X509-version to 3 failed";
75 void X509Cert::setIssuerNameFrom( std::shared_ptr<X509> caCert ) {
76 if( !X509_set_issuer_name( target.get(), X509_get_subject_name( caCert.get() ) ) ) {
77 throw "Error setting Issuer name";
81 void X509Cert::setPubkeyFrom( std::shared_ptr<X509Req> req ) {
82 std::shared_ptr<EVP_PKEY> pktmp = req->getPkey();
84 if( !X509_set_pubkey( target.get(), pktmp.get() ) ) {
85 throw "Setting public key failed.";
89 void X509Cert::setSerialNumber( int num ) {
90 ASN1_INTEGER_set( target.get()->cert_info->serialNumber, num );
93 void X509Cert::setTimes( long before, long after ) {
94 X509_gmtime_adj( X509_get_notBefore( target.get() ), before );
95 X509_gmtime_adj( X509_get_notAfter( target.get() ), after );
98 void X509Cert::setExtensions( std::shared_ptr<X509> caCert ) {
99 add_ext( caCert, target, NID_basic_constraints, "critical,CA:FALSE" );
100 add_ext( caCert, target, NID_subject_key_identifier, "hash" );
101 add_ext( caCert, target, NID_authority_key_identifier, "keyid,issuer:always" );
102 add_ext( caCert, target, NID_key_usage, "critical,nonRepudiation,digitalSignature,keyEncipherment" );
103 add_ext( caCert, target, NID_ext_key_usage, "clientAuth, serverAuth" );
104 add_ext( caCert, target, NID_info_access, "OCSP;URI:http://ocsp.cacert.org" );
105 add_ext( caCert, target, NID_crl_distribution_points, "URI:http://crl.cacert.org/class3-revoke.crl" );
108 std::string X509Cert::sign( std::shared_ptr<EVP_PKEY> caKey ) {
109 if( !X509_sign( target.get(), caKey.get(), EVP_sha512() ) ) {
110 throw "Signing failed.";
113 X509_print_fp( stdout, target.get() );
114 std::shared_ptr<BIO> mem = std::shared_ptr<BIO>( BIO_new( BIO_s_mem() ), BIO_free );
115 PEM_write_bio_X509( mem.get(), target.get() );
117 BIO_get_mem_ptr( mem.get(), &buf );
118 std::string output( buf->data, buf->data + buf->length );