feat(crypto): add crypto library

components/wpa_supplicant/include/crypto/random.h

@@ -0,0 +1,34 @@
+/*
+ * Random number generator
+ * Copyright (c) 2010-2011, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#ifndef RANDOM_H
+#define RANDOM_H
+
+#define CONFIG_NO_RANDOM_POOL
+
+#ifdef CONFIG_NO_RANDOM_POOL
+#define random_init(e) do { } while (0)
+#define random_deinit() do { } while (0)
+#define random_add_randomness(b, l) do { } while (0)
+#define random_get_bytes(b, l) os_get_random((b), (l))
+#define random_pool_ready() 1
+#define random_mark_pool_ready() do { } while (0)
+#else /* CONFIG_NO_RANDOM_POOL */
+void random_init(const char *entropy_file);
+void random_deinit(void);
+void random_add_randomness(const void *buf, size_t len);
+int random_get_bytes(void *buf, size_t len);
+#endif /* CONFIG_NO_RANDOM_POOL */
+
+#endif /* RANDOM_H */