One of the obvious protection mechanisms taken to secure hardware is to implement and enable encryption. However, attacks exist whereby encryption can be bypassed, or the key can be obtained extremely easily.
Side channel attacks are an advanced hardware exploitation technique in which an attacker uses different information sources, such as variations in power, timing analysis, electromagnetic data variations, and sound information, to extract more information, which can be used to compromise the target device.
Direct memory attacks (DMA) are a type of side channel attack, which let the attacker access one of the components involved in the functionality of a certain activity directly instead of going the usual route. For example, if we take an example of a USB, the USB connects to the controller hub/platform controller hub (PCH), which can be accessed via direct memory access (DMA).
These attacks are complicated to prevent, however, the following are some of...