1 files changed, 37 insertions, 0 deletions
diff --git a/lib/isc/entropy_private.h b/lib/isc/entropy_private.h
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+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+#pragma once
+
+#include <stdlib.h>
+
+#include <isc/lang.h>
+
+/*! \file isc/entropy_private.h
+ * \brief Implements wrapper around CSPRNG cryptographic library calls
+ * for getting cryptographically secure pseudo-random numbers.
+ *
+ * - If OpenSSL is used, it uses RAND_bytes()
+ * - If PKCS#11 is used, it uses pkcs_C_GenerateRandom()
+ *
+ */
+
+ISC_LANG_BEGINDECLS
+
+void
+isc_entropy_get(void *buf, size_t buflen);
+/*!<
+ * \brief Get cryptographically-secure pseudo-random data.
+ */
+
+ISC_LANG_ENDDECLS