Re: Security

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I've found that it works without all the fancy dynamic stuff...I use just a
distorted number image and FP's form field validation...and haven't gotten
any goofy email from the form in over a year. Of course it's not a busy
site..but I used to get junk mail from it regularly so I guess it works.


"Trevor L." <Trevor_L.@Canberra> wrote in message
news:eKGJlvjqGHA.4684@xxxxxxxxxxxxxxxxxxxxxxx
| Trevor L. wrote:
| > TonyMast wrote:
| >> I don't remember what it's called, but I want to create a text input
| >> to ensure it's a human typing in the information.
| >> The one says type in the above letter and numbers. These letters and
| >> numbers are an image and slightly off centered and slanted.
| >>
| >> Thanks
| >
| > There have been some recent posts on this topic.
| >
| > I was also interested but didn't find anything useful - sure there
| > were references to some sites that used it, but how to implement ??
| >
| > Actually to answer my own question, I think the sites in question
| > linked to various random images and obviously some file which
| > contained the translation into characters, so each time a different
| > set of characters is used and a different response is required.
| > Perhaps we should both keep watching
|
| Well, Tony
|
| I did a bit of searching and this method is called captchas
http://captchas.net/
|
| To use this technology, your web pages have to be generated dynamically by
any programming language like PHP, JSP, Python, ASP,
| Perl. To encode the password the Message Digest Algorithm MD5 is required.
It is part of most of the named languages or can easily
| be installed.
|
| So for an ordinary page it may not work (unless one can simulate this
using JavaScript)
|
| --
| Cheers,
| Trevor L.
| Website: http://tandcl.homemail.com.au
|
|


.

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