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Real shame since cortex has a admin TrustZone processor that is licensed to special interests only. For the educational market, this "security" is a selling poi
by neuroelectron 5mo ago
Real shame since cortex has a admin TrustZone processor that is licensed to special interests only. For the educational market, this "security" is a selling point. It guarantees that a student isn't running unauthorized code or "cheating" apps. It also likely allows OTA auditing of the classroom's state.
- fph 5mo agoWhat prevents a motivated cheater from swapping out the processor entirely?
- deleted 5mo ago[deleted]
- RealityVoid 5mo agoThe effort.
- QuantumNomad_ 5mo agoAnd the cost, and the parents.
- als0 5mo agoAny secure boot design can achieve that, you don't need TrustZone to do that
- xattt 5mo agoThere’s a discussion to be had on the absolutism of technology for decisions or security, and the slow erosion of a certain intangible “discretionary” element in day-to-day life.
- duskwuff 5mo ago> Real shame since cortex has a admin TrustZone processor that is licensed to special interests only. This is substantially inaccurate. 1) Not all ARM Cortex series CPUs have TrustZone. It is absent on many Cortex-M microcontrollers, for example. 2) TrustZone is an operating mode of the CPU, not an "admin processor". Depending on the part, it is often made accessible to developers. (Whether that includes third-party software developers is, of course, up to the device manufacturer.) For more information, see: https://developer.arm.com/documentation/100690/0200/ARM-TrustZone-technology https://developer.arm.com/documentation/100690/0200/ARM-Trus...