Abstract:
A controller that is separate from a processor of the system verifies controller code for execution on the controller. In response to verifying the controller code, the controller verifies a system boot code.
Abstract:
Examples associated with certificate analysis are disclosed. One example periodically analyzing a secure socket layer certificate chain between a client device and a server device. The client device may perform this periodic analysis. In response to detecting an unexpected certificate in the secure socket layer certificate chain, a responsive action is taken.
Abstract:
A first non-volatile memory stores a redundant copy of system data that relates to a configuration of at least one physical component of a system, where the first non-volatile memory is accessible by a controller in the system and inaccessible to a processor in the system. It is determined whether system data in a second non-volatile memory accessible by the processor is compromised. In response to determining that the system data in the second non-volatile memory is compromised, the compromised system data in the second non-volatile memory is repaired.
Abstract:
In examples provided herein, a computing device includes a processor, a memory coupled to the processor, and a non-transitory computer readable storage medium coupled to the processor that includes instructions, that when executed by the processor, cause the processor to manage a transition between a first operating system and a second operating system. The instructions cause the processor to instantiate a copy-on-write virtual computing system executing a first operating system, delete a second operating system from the non-transitory computer readable storage medium or the memory, copy the first operating system to the non-transitory computer readable storage medium. The instructions can further cause the processor to instantiate the first operating system on the computing device.
Abstract:
Examples herein disclose monitoring an expected functionality upon execution of a system management mode (SMM) BIOS code. The examples detect whether a change has occurred to the SMM BIOS code based on the monitoring of the expected functionality. The change indicates that the SMM BIOS code is compromised.