> > Or does somebody know how to implement a solution > > with the picture with a code on it that the end-user has to > type over > > in a form field ? Like Yahoo and Hotmail registration do, > that looks > > pretty neat to me. > > I think this is quite easy to do using the <mm:image> tag and > a random template, but that would create a new icache for > every page form you generate. Implementation should be pretty > straightforward: > - generate a random string, put this in the session > - put the random string inside an image using the <mm:image> tag > - after a post, compare the session value with the one > submitted by the > user.
Good idea, I did not realize imagemagick could that easily generate such images. Now we only need a 'nocache' attribute in the <mm:image> tag. > > This could work for polls too ofcourse. This seems a bit overdone to me but maybe for high-security polls. > > Johannes > >
