I am interested in CPUs that do not contain any backdoors. By "backdoors", I am referring to things like the Intel Management Engine (IME). Do such CPUs exist? The reason I ask is because I am thinking of building a small router/firewall/UTM device, and I want to minimize the possibility that such an important security device could be remotely tampered with.
Question CPUs without backdoors
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Help answer the author's question with clear explanations and useful steps.
There are certain CPUs available in the market that do not integrate backdoors like the Intel Management Engine (IME). One such example is the RISC-V architecture which is an open-source and license-free instruction set architecture. Some of the CPU manufacturers that produce RISC-V CPUs include SiFive, Microsemi, and Esperanto. Additionally, there are other CPUs that are designed not to contain backdoors, such as the IBM POWER architecture. It's important to do your research and select a processor that meets your specific security needs.
Would a Raspberry Pi work?
Raspberry Pi Documentation - Processors
The official documentation for Raspberry Pi computers and microcontrollers
www.raspberrypi.com
Raspberry Pi 4 Model B specifications – Raspberry Pi
Your tiny, dual-display, desktop computer …and robot brains, smart home hub, media centre, networked AI core, factory controller, and much more.
www.raspberrypi.com
Get yourself an ampere arm CPU, raspberry cpus are weak for high performance firewalls.
What about one of the BeagleBone boards? Some of them seem to have fairly good specs.
See:
BeagleBoard.org - bone
BeagleBoard.org - boards
It seems that I am not the only one who had this idea (see below).
Building a BeagleBone Firewall: Part 1 – Pengdows
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