On Tue, 19 Sep 2006 16:51:52 UTC, Brian Morrison
wrote:

Bob Eager wrote:
On Tue, 19 Sep 2006 16:37:23 UTC, Brian Morrison
wrote:

What on earth would be the point?
To endure that printing the stamp is done from within the Java sandbox
so that only one print attempt per bar-code can be made.

An over-complex and ultimately useless solution! One can always hold the
print job at the spooler, and ask it to print multiple times...so that
would not be secure at all.

That's why it has to be done with unique barcodes.

Except that they're not unique if they can be printed multiple times.

That's merely terminology. Perhaps I should have said 'use once'. The
Java solution doesn't stop things being printed more than once - it is
trivial to circumvent that (really trivial on my system). But, even if
it were a bit more tricky, it's a whopping hole.

The bar code can be printed as many times as you wish. Use it more than
once and only the first letter to be franked will get through without
postage due charges being raised. Seems a solid solution.

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