On Fri, Jun 23, 2023 at 08:55:56AM +0300, Svyatoslav Ryhel wrote:
This is a small tool for calculation of SoC UID based on the same Linux function. It can be further used for generation of device unique data like mac address or exposing it as serial number.
It's a very bad idea to use the SoC UID as a MAC address. There are better ways (such as MAC address randomization) to generate one if for some reason you don't have a real MAC address or are concerned about privacy.
The SoC UID is also not very well suited as a serial number because it identifies only the SoC, but doesn't say anything about any of the other components of a device. Many devices have serial numbers in some EEPROM chip, so those would be more appropriate.
I suppose not all devices have such a system-wide serial number, so perhaps there are cases where this would be better than nothing.
Thierry