硬件加密的無線MCU對黑客變硬

　　嵌入式設備總是容易受到攻擊。近年來發生了變化的是黑客訪問這些設備的能力。由于使用無線網絡來互連網絡，用于保護工業控制器和類似設備的網絡中的空氣間隙已經填滿。無線網絡被引入，增加了便利性和靈活性，但也為黑客發起攻擊提供了一個簡單的途徑。所需的是對攻擊進行加固的設備，使用技術相結合以支持高安全性。

　　安全加固的關鍵是一組基本的構建塊，當一起使用時，拒絕黑客嘗試并保持完整性。一個無線啟用的設備需要確保它能夠維護自己的代碼和數據的控制，并支持與遠程端點的私有通信，這些端點可以提供必要的認證以獲得信任。

　　An example of why authentication of devices is essential is the man-in-the-middle attack. This is an attack in which a hacker intercepts communications between two legitimate devices and eavesdrops on the conversation， and alters the packets they receive in order to gain access to a secret or entry to one or both of the devices. A common attack used against Wi-Fi-enabled devices is to create an access point that masquerades as a legitimate router that forwards manipulated data to the real access point and to the device itself. Using such techniques， the attacker may learn the access codes needed to perform a successful login， or they may inject false data or malware that causes a device to become faulty.