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Update commentary on UUID vs UEID
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Laurence Lundblade committed Jun 29, 2022
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Expand Up @@ -2534,13 +2534,9 @@ structure of time and clock values. This structure is of no
value here yet adds complexity. It also slightly reduces the
number of actual bits with entropy.

UUIDs seem to have been designed for scenarios where the implementor
does not have full control over the environment and uniqueness has to
be constructed from identifiers at hand. UEID takes the view that
hardware, software and/or manufacturing process directly implement
UEID in a simple and direct way. It takes the view that cryptographic
quality random number generators are readily available as they are
implemented in commonly used CPU hardware.
The design of UUID accommodates the construction of a unique identifier by combination of several identifiers that separately do not provide sufficient uniqueness.
UEID takes the view that this construction is no longer needed, in particular because cryptographic-quality random number generators are readily available.
It takes the view that hardware, software and/or manufacturing process implement UEID in a simple and direct way.


# EAT Relation to IEEE.802.1AR Secure Device Identity (DevID)
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