Forensics Module and Integrated System

According to various embodiments, a forensics module (250) for an embedded system may comprise: a firewall (612); an interface (208) for communicating with an embedded system (150); at least one memory area (202s) secured by means of a firewall (612) and/or separated from the interface, comprising first data implementing a reference key; one or more than one processor (204) configured to perform an authentication sequence for a system startup sequence of the embedded system (150), wherein the authentication sequence is privileged to penetrate the firewall (612) and comprises: determining, prior to executing a first stage of the system startup sequence, a first key using a cryptographic process based on: stored first stage second data, and the reference key, and preferably a unique verification key; determining, upon executing the first stage and/or prior to executing a subsequent second stage of the system startup sequence, a second key using the cryptographic process based on: stored second stage third data and the first key.