New CAPTCHA

Discuss features as they are added to the new version. Give us your feedback. Don't post bug reports, feature requests, support questions or suggestions here.
Forum rules
Discuss features as they are added to the new version. Give us your feedback. Don't post bug reports, feature requests, support questions or suggestions here. Feature requests are closed.
Post Reply
squirrelface
Registered User
Posts: 7
Joined: Mon Apr 24, 2006 6:20 pm

Re: New CAPTCHA

Post by squirrelface »

As long as the key is presented in the graphic that would be pretty cool. such as:
Attachments
bmreciept.gif
bmreciept.gif (4.39 KiB) Viewed 5777 times
User avatar
DavidMJ
Registered User
Posts: 932
Joined: Thu Jun 16, 2005 1:14 am
Location: Great Neck, NY

Re: New CAPTCHA

Post by DavidMJ »

that kind of approach is too easy to win against, there is no variation. the noise does not make it any harder to detect the edges...
Freedom from fear
ElbertF
Registered User
Posts: 583
Joined: Fri Dec 03, 2004 4:35 pm
Location: tracing..
Contact:

Re: New CAPTCHA

Post by ElbertF »

They keys shouldn't be to easy to read either, and they should differ every time offcourse :)

It's ment as an addition, not a replacement of the examples above.. Combined it should be pretty hard to crack :)
squirrelface
Registered User
Posts: 7
Joined: Mon Apr 24, 2006 6:20 pm

Re: New CAPTCHA

Post by squirrelface »

guys, I wasn't try to make it uber secure. I was just demonstrating that the key should be in the graphics file. Next time, i'll try harder with making the graphic ultra secure.
Attachments
bmreciept2.gif
bmreciept2.gif (4.04 KiB) Viewed 5764 times
Cap'n Refsmmat
Registered User
Posts: 219
Joined: Tue Jan 25, 2005 11:31 pm

Re: New CAPTCHA

Post by Cap'n Refsmmat »

DavidMJ wrote: The new CAPTCHA is still under development. We are willing to listen to any suggestions that you guys feel that would make it better. Things like "make it more readable" are not responses that will help. Things like "The two at the front looks slightly too curvy" is way more helpful.

Also, the information for generating these images are right inside of one file. If you feel that you can come up with a better bitmap/vector, post it! If you find a better font, tell us!

All work in CVS is a work in progress. The fight against spam is never really over. Also, the work that is in the current CVS does not represent total progress. There are more things up ours sleeves :D

Of the three methods, two of them were displayed. An example of the third is
Image
The answer is PGRU3BWS
In this image, I think the W is far too light. I missed that the first time I tried the visual confirmation, and it was harder to see then. It needs to be darkened a bit so it's obviously a letter (but not too much or the bot gets the idea).
User avatar
EXreaction
Registered User
Posts: 1555
Joined: Sat Sep 10, 2005 2:15 am

Re: New CAPTCHA

Post by EXreaction »

Yep, the W definatly needs to be darkened...just started playing with it a little bit...I will give you some more feedback if I find anything that needs a little fixing. :)

EDIT: And the wavy ones definatly need work...the letters seem to get squished once in a while, and its really hard to read. :(
(kind hard to explain...sorry)

EDIT: And here:
Image

The L is at too big of an angle...it almost looks like a v. ;)

EDIT:
(lol, a lot of edits :p)
Image

What is that? 3M 7? BX Is that a 7 in the middle?
sky.strife
Registered User
Posts: 14
Joined: Fri Nov 11, 2005 7:47 pm
Location: Illinois
Contact:

Re: New CAPTCHA

Post by sky.strife »

EXreaction wrote: EDIT:
(lol, a lot of edits :p)
Image

What is that? 3M 7? BX Is that a 7 in the middle?
Yeah, that's what it looks like to me.
Image

Image
User avatar
Wernight
Registered User
Posts: 26
Joined: Sun Apr 02, 2006 2:15 pm
Location: France
Contact:

Re: New CAPTCHA

Post by Wernight »

I think one of the most interresting topic about this is (to avoid repeating):
viewtopic.php?f=4&t=23134&st=0&sk=t&sd= ... a&start=10
The problem is that bots evolve. Even the visual or vocal confirmation can by bypassed by computer algorithms - OCR, AI... Look for example here: http://sam.zoy.org/pwntcha/ Efficiency against current phpBB - 97% Razz

I think the only we can do is changing the methods time after time...

More on this topic at W3C: http://www.w3.org/TR/turingtest/
Another page about CAPTCHA and bots: http://www.cs.sfu.ca/~mori/research/gimpy/

General info about CAPTCHA: http://www.brains-n-brawn.com/default.a ... =aicaptcha

Just an idea: About about using projective spaces / 3-D. No, I'm not talking about making an OpenGL window in phpBB of course. Just an idea of using 3-D deformations/rotations and other things. It's not that hard to project 3-D to 2-D. (an example of very simple 3D projection http://www.beroux.com/?id=40)
Spectral Dragon
Registered User
Posts: 208
Joined: Mon Feb 16, 2004 1:45 pm
Location: Milan, MI
Contact:

Re: New CAPTCHA

Post by Spectral Dragon »

It's hard to tell the first one has raised letters unless you've been looking at it for a few minutes for me.
APTX
Registered User
Posts: 680
Joined: Thu Apr 24, 2003 12:07 pm

Re: New CAPTCHA

Post by APTX »

Maybe a transformation like this will be good.
Don't give me my freedom out of pity!
Post Reply