Re: [IxDA Discuss] Verifying a user is human

2007-11-30 Thread Chris Maissan
Thanks for all the input guys. You've given me some great ideas - which is
exactly what I was hoping to get.

Cheers,
Chris




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[IxDA Discuss] Verifying a user is human

2007-11-29 Thread Chris Maissan
I am in the process of designing a support forum for a software product. The
goal is to make it as easy as possible to ask a question. Ideally I'd like
to do away with the need to login all together, but it also needs to be Spam
resistant.

 

I've looked a little into the CAPTCHA (Completely Automated Public Turing
Test to Tell Computers and Humans Apart) method, better known as the
distorted text method, but questions have been raised about both its
accessibility and effectiveness. 

 

There is the option of sending an activation email. However, this adds
several steps for the user and is not without its own issues (Spam filters
etc.)

 

Does anyone have any thoughts on the best method to confirm a user is human?
Maybe a third option I haven't thought of?

 

Cheers,

Chris

 

Some links on CAPTCHA

http://en.wikipedia.org/wiki/Captcha

http://www.w3.org/TR/turingtest/

 

 

 

 


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Re: [IxDA Discuss] Verifying a user is human

2007-11-29 Thread Robert Hoekman, Jr.
 I am in the process of designing a support forum for a software product.
 The
 goal is to make it as easy as possible to ask a question. Ideally I'd like
 to do away with the need to login all together, but it also needs to be
 Spam
 resistant.


First, I'm amazed you know what CAPTCHA stands for. :)

Second, this is a problem that really bugs me too, so I'm interested in
ideas. How about something like a 2+2 = ? followed by a dropdown?
Dropdowns have low usability, so maybe entering the answer into an input
field would be better.

I've seen this type of solution used before, and while it requires more work
for the user, it's often less work than trying to interpret the letters in a
CAPTCHA system.

-r-

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Re: [IxDA Discuss] Verifying a user is human

2007-11-29 Thread Daniel Yang


 How about something like a 2+2 = ? followed by a dropdown?


2+2 in text would probably be easy to parse. Make the 2+2 an image  
and it would probably do pretty well for next year or two. The  
deterrent against the computer (image deciphering) is still being used  
but it's more natural since it's a question format than a copy this  
task. I have failed the CAPTCHA tests more than once or twice and it's  
quite dehumanizing.

-Dan

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Re: [IxDA Discuss] Verifying a user is human

2007-11-29 Thread Jeff Howard
Chris asked: 
 Does anyone have any thoughts on the best method 
 to confirm a user is human?

Seems like this made the rounds on the blog circuit a few weeks ago:

You're in a desert, walking along in the sand when all of a sudden
you look down and see a tortoise. You reach down and you flip the
tortoise over on its back. The tortoise lays on its back, its belly
baking in the hot sun, beating its legs trying to turn itself over
but it can't. Not without your help. Do you flip it back over? Type
your answer below.

IIRC there was an abbreviated test that simply asked:
What color is an orange?

On my own blog I've found it pretty effective to simply block any
comments with more than a certain number of URLs in the body. Also,
the Akismet spam filter on Wordpress has been remarkably efficient.
It's filtered out hundreds of spam comments with no false positives
and only one false negative since I started using it. I've never
looked in to how it works but it doesn't require anyone to prove
they're human.

// jeff


. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Posted from the new ixda.org
http://www.ixda.org/discuss?post=23115



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Re: [IxDA Discuss] Verifying a user is human

2007-11-29 Thread Matthew Nish-Lapidus
Hi,

CAPTCHA done right is very effective, and can be accessible as well.
I suggest taking a look at the reCAPTCHA project
(http://recaptcha.net/), they have an audio version available as well,
and it contributes back to the Internet Archive project, always a
worthy cause.

There was just a great article on a blog about CAPTCHA's, but I can't
remember which one right now.. when I find it I'll make sure to send
it back to the list.

Matt.

On Nov 29, 2007 10:18 AM, Chris Maissan [EMAIL PROTECTED] wrote:
 I am in the process of designing a support forum for a software product. The
 goal is to make it as easy as possible to ask a question. Ideally I'd like
 to do away with the need to login all together, but it also needs to be Spam
 resistant.

-- 
Matt Nish-Lapidus
email/gtalk: [EMAIL PROTECTED]
++
LinkedIn: http://www.linkedin.com/in/mattnl
Home: http://www.nishlapidus.com

*Come to IxDA Interaction08 | Savannah*
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[IxDA Discuss] Verifying a user is human

2007-11-29 Thread Jennifer Berk
Chris,

I'd suggest you create your own test instead of using a standard
CAPTCHA.  The simplest way to resist spambots is to give them a
question they haven't seen on several thousand other sites - and you
can easily make it accessible for humans if you don't have to worry
about fooling the machines.  Take a look at
http://almaer.com/blog/logic-based-captcha-to-beat-the-blog-spam-bots
for a discussion of some possible questions at the end of the post.

Jennifer Berk

On 11/29/07, Chris Maissan [EMAIL PROTECTED] wrote:
 I am in the process of designing a support forum for a software product. The
 goal is to make it as easy as possible to ask a question. Ideally I'd like
 to do away with the need to login all together, but it also needs to be Spam
 resistant.
 ...
 Does anyone have any thoughts on the best method to confirm a user is human?
 Maybe a third option I haven't thought of?

*Come to IxDA Interaction08 | Savannah*
February 8-10, 2008 in Savannah, GA, USA
Register today: http://interaction08.ixda.org/


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Re: [IxDA Discuss] Verifying a user is human

2007-11-29 Thread Bryan Minihan
Also, if it's a support forum for a software application, you could provide
the key for submitting support requests inside the software, or the
ability to do so (in the form of a button or link).  Folks who come to the
site outside the software may have to suffer a login, but those coming from
your software would have a free ride, so to speak.

Bryan
http://www.bryanminihan.com 

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Matthew
Nish-Lapidus
Sent: Thursday, November 29, 2007 7:34 PM
To: Chris Maissan
Cc: [EMAIL PROTECTED]
Subject: Re: [IxDA Discuss] Verifying a user is human

Hi,

CAPTCHA done right is very effective, and can be accessible as well.
I suggest taking a look at the reCAPTCHA project
(http://recaptcha.net/), they have an audio version available as well,
and it contributes back to the Internet Archive project, always a
worthy cause.

There was just a great article on a blog about CAPTCHA's, but I can't
remember which one right now.. when I find it I'll make sure to send
it back to the list.

Matt.

On Nov 29, 2007 10:18 AM, Chris Maissan [EMAIL PROTECTED] wrote:
 I am in the process of designing a support forum for a software product.
The
 goal is to make it as easy as possible to ask a question. Ideally I'd like
 to do away with the need to login all together, but it also needs to be
Spam
 resistant.

-- 
Matt Nish-Lapidus
email/gtalk: [EMAIL PROTECTED]
++
LinkedIn: http://www.linkedin.com/in/mattnl
Home: http://www.nishlapidus.com

*Come to IxDA Interaction08 | Savannah*
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Re: [IxDA Discuss] Verifying a user is human

2007-11-29 Thread Murli Nagasundaram
Here's one called Asirra that Microsoft is working on:

http://research.microsoft.com/asirra/

Blurb:  * Asirra is a human interactive proof that asks users to identify
photos of cats and dogs. It's powered by over three million photos from our
unique partnership with Petfinder.com http://www.petfinder.com/. Protect
your web site with Asirra — free!

Cheers,

murli | www.murli.com
*

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Re: [IxDA Discuss] Verifying a user is human

2007-11-29 Thread Bryan Minihan
That's a neat idea...hopefully your visitors aren't crying by the time they
make it into the site.  Clever, tho =]

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Murli
Nagasundaram
Sent: Thursday, November 29, 2007 9:20 PM
To: Chris Maissan
Cc: [EMAIL PROTECTED]
Subject: Re: [IxDA Discuss] Verifying a user is human

Here's one called Asirra that Microsoft is working on:

http://research.microsoft.com/asirra/

Blurb:  * Asirra is a human interactive proof that asks users to identify
photos of cats and dogs. It's powered by over three million photos from our
unique partnership with Petfinder.com http://www.petfinder.com/. Protect
your web site with Asirra - free!

Cheers,

murli | www.murli.com
*

*Come to IxDA Interaction08 | Savannah*
February 8-10, 2008 in Savannah, GA, USA
Register today: http://interaction08.ixda.org/


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Re: [IxDA Discuss] Verifying a user is human

2007-11-29 Thread Jason Zietz

 I've seen this type of solution used before, and while it requires more work
 for the user, it's often less work than trying to interpret the letters in a
 CAPTCHA system.
   


reCAPTCHA is a nice CAPTCHA implementation that uses (mostly) actual 
words for verification.  And it's a nice way to help with the digitizing 
of books as well.


http://recaptcha.net/


It also has some accessibility features built in.  But, as with all 
CAPTCHAs, it can be circumvented in a manner as described here:


http://en.wikipedia.org/wiki/Captcha#Human_solvers


The math equation solution is subject to this hack as well.  I think 
the only way you can absolutely verify that there's a non-nefarious 
human on the other end is via biometrics, and I'm guessing that that 
won't be a feasible option.

jason



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