Cryptographic Key Derivation from an Anti-Tamper Solution

The IoT concept keeps the interest of electronics designers for many years. The IoT devices are used in various application domains, such as: consumer, commercial, industrial, infrastructure and medical. They process and communicate data that, in most cases, are confidential or are not intended for the public. The security of the IoT devices has become a major concern for every user. This paper proposes a security system that protects the IoT devices from tampering with no backup power. It consists of an electronic circuit that has two roles: analyzes the physical integrity of the protected device and derivates a key to decrypt the firmware.