Most ARM SoC have some equivalent device, but they are nonstandard and require driver support.
Even the TPM chips in basically every desktop, laptop, and server for over a decade have hardware RNG. Again driver support is needed.
The problem is cheap “blue plastic boxes” may not have a hardware RNG, nor will Virtual machines or containers. Writing code to figure out what RNG is available and how to use it is a nightmare so few people do it.
This is why most security people say “use the OS CSPRNG always”. That way user-space code doesn’t have to carry all the platform specifics with it. And presumably integrating the hardware RNG can be done once at the OS layer.
No comments yet.
