MD5 is 128 bits. It's 32 hex digits.

I do prefer Data::UUID for this task, myself. Note that while it guarantees uniqueness, it doesn't guarantee unpredictibility, which may or may not be a problem for a given application. Most MD5/SHA1/whatever session generators have the same issue.

"There is no shame in being self-taught, only in not trying to learn in the first place." -- Atrus, Myst: The Book of D'ni.

In reply to Re^2: MD5-based Unique Session ID Generator by hardburn
in thread MD5-based Unique Session ID Generator by radiantmatrix

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