The method of using hardware to enhance the anti-theft mechanism of the Internet of Things (IoT) device is to add a Secure Element. In addition to the microprocessor, a separate SE chip is added to the device for storing user sensitive information. Such as fingerprints, irises, credit card information, etc., independently handle user access to sensitive information, such as mobile payments.
However, there are still unresolved problems with the security chip. In some cases, the CPU or MCU still needs to communicate with the secure element, but the message exchange channel is not protected by the secure element. Although the chip has encrypted the information, the chip and the source of the information The connection between the channels is unprotected, causing the device to still face the risk of physical or side-channel attacks. As long as the Root of Trust is established, there is no need to add additional hardware to ensure device security. The security root must be designed and ideally implemented in hardware to perform security-critical functions such as protecting encryption keys or performing device authentication. It depends on the establishment of the root of security trust.
Another way is through SRAM Physical Unclonable FuncTIon (SRAM PUF), which is a physical feature that is produced when each chip is manufactured. This physical feature is unique, like the fingerprint of the chip, it cannot be copied (Unclonable) and has Unpredictability, and therefore used to generate public and private keys on a single device. Since the SRAM PUF is actually a physical change on the surface of the chip, it is a hardware security mechanism that prevents an attacker from stealing information because it cannot be easily erased or used in other devices. Security components are the current mainstream, but in the business case, economic benefits and flexibility must also be considered. If necessary, add software, manufacturing and other factors to observe together to understand the changes in the entire cost.
Single point load cells are a type of weight sensor, also know as parallel beam Load Cell, It will offer high accuracy and high reliability, they are widely used in small bench scales,platform scales, medical scales, light capacity filling machines packaging machines and other weighing devices.
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