The UUID library is used to generate unique identifiers for objects that may
be accessible beyond the local system. For instance, they could be used to
generate unique HTTP cookies across multiple web servers without
communication between the servers, and without fear of a name clash.
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The generated UUIDs can be reasonably expected to be unique within a system,
and unique across all systems, and are compatible with those created by the
Open Software Foundation (OSF) Distributed Computing Environment (DCE).
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All generated UUIDs are either version 1, 3, 4, 5, 6, or version 7. And all
are variant 1, meaning compliant with the OSF DCE standard as described in
RFC4122.
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Versions 6 and 7 are not standardized. They are presented here as proposed in
RFC4122bis, version 14, and may change in the future. RFC4122bis is noted to
replace RFC4122, if approved.
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