Chip decryption --- the main method of single chip decryption probe technology
| The technique is to directly expose the internal connection of the chip, and then observe, manipulate, interfere with the MCU to achieve the purpose of attack. For the sake of convenience, people will be more than four attack techniques are divided into two classes, a class is the intrusion type attack (physical attack). This kind of attack requires destruction of package. And with the help of semiconductor test equipment, microscope and micro positioner, in a special laboratory spend a few hours or even weeks to complete. All of the micro probe techniques are invasive. The other three methods are non intrusive attacks, the single chip will not be attacked by physical damage. In some occasions non intrusive attacks are particularly dangerous, because the device is usually required for non-invasive attacks can be made and upgraded, and therefore very cheap.
|
