OCR Research Team Blog

03 March 2006

One more easy CAPCTHA

http://www.phpclasses.org/subscription.html?page=

09 January 2006

Ha-ha-ha!

http://www.hudzilla.org/phpbook/read.php/16_1_0

see the very bottom part, whete "captcha" is written - simple math task.
Anyone really believes it works??? :))

26 December 2005

We are back

Sorry for the long silence, now we are back. Site was updated technicaly, soon we'll post new content. Thanks to all who was waiting

12 April 2005

Reviewing internet

Those guys... humanverify.com... they say they have more then 200 customers. Here are several of them:
http://frontpage.velocity.net/yanc/verification.htm
http://www.selfhealingexpressions.com/cgi-bin/links/links.cgi?action=add_link
http://dot.servehttp.com/home/register.asp
http://www.naomihall.com/links.shtml

Interesting, what webmasters of these websites will say when we'll crack this CAPTCHA? We definately will, just to know what will they say :)

Then.
One more pretty CAPTCHA which can be cracked:
http://higginsforpresident.net/projects/tacs/demo/index.php
nice try, but I don't believe it this idea. Anyone wants to pay us for cracking it? :)

Time to time I see classic CATPCHA - Hotmail one, like here
http://www.standards-schmandards.com/exhibits/captcha/
It's good in sense of it's hard to break, realy hard (but we have several ideas). But it also very hard to read what written on it! Even I - 100% healthy young man, several years of everyday internet use, and I can't read some of pictures. What can I say more? tEABAG_3D will be mush more readlable (even now it is!)

One more CAPTCHA
https://www.kiwibank.co.nz/banking/login.asp
This is a bank, isn't it? Maybe they will buy our solution if you will crack this one?

And here is one CAPTCHA we almost lmao on
http://www.hudzilla.org/phpbook/read.php/16_1_0
I'm impressed.
Anyone thinks that it's hard to break?? I'll do it for two beers :)

Long discussion about CAPTHA. Almost empty
http://www.7nights.com/asterisk/archive/2005/03/i-hate-captcha

One more long thread
http://underscorebleach.net/content/jotsheet/2005/01/mt_scode_captcha_accessibility_comment_spam

And one more
http://www.standards-schmandards.com/index.php?2005/01/01/11-captcha

Yeah, I know that our site does not looks too big and full of cracks. It's just a lack of time. I promice I'll update it asap.

06 April 2005

3 last versions

Well, the last is 0.8, I hope with 1.0 we will make some release. Hard optimization is needed for now.

http://ocr-research.org.ua/3dv6/index.php?code=1982
http://ocr-research.org.ua/3dv7/index.php?code=1982
http://ocr-research.org.ua/3dv8/index.php?code=1982

More ideas = more versions. We have the ideas!

29 March 2005

Version 0.5 beta

Maybe it's time to make a changelog for versions?
Here you go - the last (and the best) version of tEABAG_3D CATPCHA for the moment
http://ocr-research.org.ua/3dv5/index.php?code=1982

I know - site needs to be seriously updated. No time for this - three new CAPTCHA breaking on the way!

22 March 2005

More links

We found more link needed to be investifated more closely

What CAPTCHA is - one more exlanation
http://www.absoluteastronomy.com/encyclopedia/C/Ca/Captcha.htm

One more CAPTCHA - silly one
http://www.humanverify.com/genDemo.asp

reCATPCHA project - nice try, but I bet we'll crack it!!!
http://www.crt.realtors.org/projects/reCaptcha/

captchas.net - free service with weak algorythm
http://captchas.net/

Java library for CAPTCHA - need to see what's this
http://jcaptcha.sourceforge.net/

21 March 2005

Wow! 2 at one day!

We made one more verion today. Look here - tEABAG_3D v0.4
http://ocr-research.org.ua/3dv4/index.php?code=1982
It seems to be much more readable!

New version released

New version of a tEABAG_3D, our main project are available to view. It seems to be more human-readable, but not ideal :)
http://ocr-research.org.ua/3dv3/index.php?code=1982

It seems like idea with lines has no future.
We will continue work on polygonal version to develop a CAPTCHA which is realy hard to break :)

17 March 2005

A huge amount of links

We found many links to CAPTCHA-related resources. Going to post it here - just to know where to find all of it in future. So:

Breaking a Visual CAPTCHA
http://www.cs.berkeley.edu/~mori/gimpy/gimpy.html
Greg Mori and Jitendra Malik found how to break Gimpy - very famous CAPTCHA, used on Yahoo

aiCaptcha
http://www.brains-n-brawn.com/default.aspx?vDir=aicaptcha
This guy is a real monster! He broke SomeBlogSite.com with a very good style! We was impressed!

PWNtcha - captcha decoder
http://sam.zoy.org/projects/pwntcha/
Interesting CAPTCHA breaking project. It have already broke many CAPTCHAs

Results of one more breaking of Gimpy
http://www.cs.berkeley.edu/~mori/gimpy/hard/

Thees guys delepose two very silly CAPTCHAs
http://www2.parc.com/istl/projects/captcha/captchas.htm
lol :)

Face recognition from MS invertigators :)
http://research.microsoft.com/~yongrui/ps/MMSJ04HIP.pdf
We think this alternative way will never be implemented

3D CAPTCHA
http://home.nyc.rr.com/spamsolution/An%20Effective%20Solution%20for%20Spam.htm
Wow! When I heard "3D" I thought they steal our idea. BUT! This is just jet another ugly idea like with faces

Someone's blog with many interesting links
http://it.slashdot.org/comments.pl?sid=137918&threshold=1&mode=flat&commentsort=0&op=Change

Some XPoint forum threads (in Russian)
http://xpoint.ru/forums/thread/28815.xhtml
http://xpoint.ru/forums/programming/theory_algorythms/thread/27090.xhtml

Thees guys are very silly to!
http://www.lanapsoft.com/products.html
7 algorythmes!
(we will break 5 of 7 for one evening, I swear! Who will donate us for this? :)

15 March 2005

New versions are available :)

Some demos of tEABAG_3D - The Enhanced Anti-Bot Approvement Generator in 3D
available here

http://ocr-research.org.ua/3d/index.php?code=1982 - ver 0.1
http://ocr-research.org.ua/3dv2/index.php?code=1982 - ver 0.2

It seems like it's not too easy to read by human.... we are working on it... But it definately very hard to read by OCR.

14 March 2005

The very first version of our brand new CAPTCHA created!

We have (finally!) made the 0.1 version of a brand new 3d CAPTCHA system. It's made on PHP4+GD. It's time to generate a mighty name for it :)
We'll show you the sample after some minor changes.

Starting our blogging

We decided to make a blog to trace some minds and links...