Hacker News new | ask | show | jobs
by BillinghamJ 3884 days ago
UUIDs are (usually) generated in a systematic fashion, so large parts of them are often possible to determine ahead of time.
2 comments
gruez 3884 days ago
Not in guid v4
link
mikeash 3884 days ago
Unfortunately that is not necessarily true, as nothing requires a UUIDv4 generator to use a cryptographically secure source of randomness.
link
MichaelGG 3883 days ago
What popular implementations in 2015 are using the braindead UUID generation methods?
link