Fellow Monks,

I wanted to present the following subroutine for critique. It is cobbled together from code in Camel (2nd) and a post somewhere on PM from a long ways back. I wanted to know what folks thought of it as a random session/transaction ID generator. I need something sufficiently random that the kiddies won't be able to jack sessions by guessing the ID sequence.

Is the following sub sufficient to my aims?
TIA
jg

#!/usr/bin/perl -w
use strict;

my ($v,$n,$l);

$v = srand( time() ^ ($$ + ($$ << 15)) );  #Camel 2nd pg 223

sub sid {
    #random character from a PM post, can't remember whose
    my @Chars = split '','abcdefghijkmnopqrstuvwxyzABCDEFGHJKMNPQRSTUV
+WXYZ23456789';
    for (1..($ARGV[0] ||= 1)){
           for (1..7){
                $l .= $Chars[rand @Chars];
        }
    }
    $n = int( rand 1000000);
}

[download]
_____________________________________________________
"The man who grasps principles can successfully select his own methods.
The man who tries methods, ignoring principles, is sure to have trouble.
~ Ralph Waldo Emerson

In reply to Session ID Generator (Rolled My Own) by jerrygarciuh

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