This is what we do: 

    $ctx = Digest::MD5->new;
    $ctx->add($token);
    my $uuid = $ctx->hexdigest;

[download]
where $token is a piece of text that is unique to the way we do things so we can get a UUID in a reproducable manner. That is, if we want to get the UUID for the same object multiple times (say across invocations of the code), we come up with the same token. By coming up with the same token each time, we get the same UUID each time. That is important to us. If you just want a unique UUID each time you call, you can create a random token, feed it in, and you'll get a unique UUID - Data::UUID uses the current time as part of the seed to this generation process.

In reply to Re: Function to create a GUID by Tanktalus
in thread Function to create a GUID by Anonymous Monk

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