+extern std::vector<Profile> profiles;
+
+std::shared_ptr<int> SimpleOpensslSigner::lib_ref(
+ new int( SSL_library_init() ),
+ []( int* ref ) {
+ delete ref;
+
+ EVP_cleanup();
+ CRYPTO_cleanup_all_ex_data();
+ } );
+
+std::shared_ptr<X509> loadX509FromFile( std::string filename ) {
+ FILE* f = fopen( filename.c_str(), "r" );
+
+ if( !f ) {
+ return std::shared_ptr<X509>();
+ }
+
+ X509* key = PEM_read_X509( f, NULL, NULL, 0 );
+ fclose( f );
+
+ if( !key ) {
+ return std::shared_ptr<X509>();
+ }
+
+ return std::shared_ptr<X509>(
+ key,
+ []( X509 * ref ) {
+ X509_free( ref );
+ } );
+}
+
+std::shared_ptr<EVP_PKEY> loadPkeyFromFile( std::string filename ) {
+ FILE* f = fopen( filename.c_str(), "r" );
+
+ if( !f ) {
+ return std::shared_ptr<EVP_PKEY>();
+ }
+
+ EVP_PKEY* key = PEM_read_PrivateKey( f, NULL, NULL, 0 );
+ fclose( f );
+
+ if( !key ) {
+ return std::shared_ptr<EVP_PKEY>();
+ }
+
+ return std::shared_ptr<EVP_PKEY>(
+ key,
+ []( EVP_PKEY * ref ) {
+ EVP_PKEY_free( ref );
+ } );
+}
+
+SimpleOpensslSigner::SimpleOpensslSigner() {
+ caCert = loadX509FromFile( profiles[0].cert );
+ caKey = loadPkeyFromFile( profiles[0].key );
+}
+
+SimpleOpensslSigner::~SimpleOpensslSigner() {
+}
+
+std::shared_ptr<BIGNUM> SimpleOpensslSigner::nextSerial( uint16_t profile ) {
+ std::ifstream serialif( "serial" );
+ std::string res;
+ serialif >> res;
+ serialif.close();
+
+ BIGNUM* bn = 0;
+
+ if( res == "" ) {
+ bn = BN_new();
+
+ if( !bn ) {
+ throw "Initing serial failed";
+ }
+ } else {
+ if( !BN_hex2bn( &bn, res.c_str() + 1 ) ) {
+ throw "Parsing serial failed.";
+ }
+ }
+
+ std::shared_ptr<BIGNUM> serial = std::shared_ptr<BIGNUM>( bn, BN_free );
+
+ std::shared_ptr<unsigned char> data = std::shared_ptr<unsigned char>( ( unsigned char* ) malloc( BN_num_bytes( serial.get() ) + 20 ), free );
+ int len = BN_bn2bin( serial.get(), data.get() );
+
+ data.get()[len] = 0x0;
+ data.get()[len + 1] = 0x0; // signer id
+
+ data.get()[len + 2] = profile >> 8;
+ data.get()[len + 3] = profile & 0xFF; // profile id
+
+ if( !RAND_bytes( data.get() + len + 4, 16 ) || !BN_add_word( serial.get(), 1 ) ) {
+ throw "Big number math failed while calcing serials.";