extracted and algorithms written to guess what string would be returned.
And it could keep doing this over and over again.
So if your number is near unique and sufficiently long such as a uuid
and also be able to be converted into a string short enough to be
manageable by a user. Then there is no problem with your method.
However, anything that you put in the body of the code, is another clue
to your algorithm behind the scenes. Remember there are a lot of smart 6
year olds out there that can easily make us look like an embryo. ;-)
So long story short, if the random number is stored in the session. Then
no clues would be left. So then they would have to rely on brute
force, trying to decode and guess what the string was from the image, or
make a more powerful OCR system.
Adam Howitt wrote:
> Which part of this would fail?
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