EUI-64 calculation

[OlegHahm]

I just discovered that RFC4193 describes an algorithm to generate a Pseudo-Random Global ID from either a MAC address or "a suitably unique identifier, local to the node, should be used (e.g., system serial number)". Maybe we can use this algorithm for creating an EUI-64 from the CPUID?

[miri64]

Looks alright on first side 👍

[OlegHahm]

SHA1 is on its way: #4701.

[miri64]

Just to be clear, the algorithm described on the RFC still requires the time of date and also describes the creation of a (somewhat) globally unique IPv6 address, right?

[OlegHahm]

Yes, it requires time and date (most of the devices have an RTC and even if not gettimeofday() can also be called with xtimer and it doesn't matter if the timestamp is "real"). And it describes how an EUI-64 and an IPv5 address can be obtained.

[stale]

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