能源收集系統(tǒng)的安全

　　安全正成為任何東西的互聯(lián)網(wǎng)的一個重要因素，但它增加了額外的處理周期和電源。這提出了一個挑戰(zhàn)，設(shè)計師為他們的傳感器節(jié)點從環(huán)境中收獲的能量。本文著眼于能源收集功率的來源，由此產(chǎn)生的能量預算，以及如何影響加密體系結(jié)構(gòu)，從加密的節(jié)點到網(wǎng)關(guān)，和控制器的選擇。

　　物聯(lián)網(wǎng)的爆炸導致不同類型的傳感器爆炸，但這是驅(qū)動沖突的要求，系統(tǒng)設(shè)計人員。一方面，這些傳感器需要持續(xù)數(shù)年的電池，或根本沒有電池，而另一方面，他們必須與世界其他地方溝通，并安全溝通。

　　This secure communication can be severely challenging for ultra-low-power sensor nodes. Devices that are powered by energy harvested from the environment have very little power left over for wireless communication， let alone the processing of complex encryption algorithms. However， the same factors that are driving the increasing use of such sensor nodes are also driving the need for security. While it may not seem important to secure the connection to a the valve of a radiator or water supply， the information about the use of the heating system can show whether a home is occupied or empty， making it a target for thieves. Even more important is securing remote actuators such as window locks – a vulnerability that allows a hacker to release a window or even a door at will is a major security risk.