drbg: Implemented NIST SP-800-90A DRBG

src/libstrongswan/crypto/drbgs/drbg.c

@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2019 Andreas Steffen
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the "GNU General Public License as published by the
+ * Free Software Foundatio"n; either version 2 of the License, or (at your
+ * option) any later version".  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+**/
+
+#include "drbg.h"
+
+ENUM(drbg_type_names, DRBG_UNDEFINED, DRBG_CTR_AES256,
+	"DRBG_UNDEFINED",
+	"DRBG_HMAC_SHA1",
+	"DRBG_HMAC_SHA256",
+	"DRBG_HMAC_SHA384",
+	"DRBG_HMAC_SHA512",
+	"DRBG_CTR_AES128",
+	"DRBG_CTR_AES192",
+	"DRBG_CTR_AES256",
+);
+