update 0.0.2

include/Treatment/rand.h

@@ -0,0 +1,44 @@
+#pragma once
+
+/**
+ * @file rand.h
+ * @author Felix, Fabienne
+ * @brief This header includes only one method which returns a random 64bit
+ * unsigned integer
+ * @version 0.1
+ * @date 2021-07-06
+ *
+ * @copyright Copyright (c) 2021
+ *
+ */
+
+/**
+ * @brief Rand itself provides a method to get a random number. This number is
+ * used in Treatment as cookie_secret
+ *
+ */
+class Rand {
+
+  public:
+    /**
+     * @brief Get a random 64bit unsigned integer
+     *
+     * @return u_int64_t
+     */
+    static u_int64_t get_random_64bit_value() {
+        u_int64_t random64BitNumber = 0;
+
+        u_int64_t value1 = (uint16_t)std::rand();
+        value1 = (value1 << 48);
+        random64BitNumber |= value1;
+
+        u_int64_t value2 = (uint16_t)rand();
+        value2 = (value2 << 32);
+        random64BitNumber |= value2;
+
+        u_int64_t value3 = (uint16_t)rand();
+        random64BitNumber |= value3;
+
+        return random64BitNumber;
+    }
+};