While Data::UUID is a good solution, it doesn't guarantee that "you won't get duplicates, ever" (heck - there are only 128bits after all :-) ... A UUID is 128 bits long, and is guaranteed to be different from all other UUIDs/GUIDs generated until 3400 CE.

I didn't say "it will never produce duplicates" -- just that "YOU won't get duplicates" (unless you live for over a thousand years).

In reply to Re^3: MD5-based Unique Session ID Generator by simonm
in thread MD5-based Unique Session ID Generator by radiantmatrix

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