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# Great post on 'Human Interactive proofs' or those screwy letter things where you have to type in some letters...

<datetime class="hidden">2006-09-06T00:00</datetime>


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Great post on 'Human Interactive proofs' or those screwy letter things where you have to type in some letters...

posted on Thursday, September 23, 2004 11:23 PM

[Stephen Toub](http://weblogs.asp.net/toub/) has [just posted](http://weblogs.asp.net/toub/archive/2004/09/23/233607.aspx) that he's had an [article](http://msdn.microsoft.com/asp.net/using/building/web/default.aspx?pull=/library/en-us/dnaspp/html/hip_aspnet.asp) go live on MSDN which has some really stunning applications of the '[CAPTCHA](http://www.captcha.net/)' technique for proving that people entering data are really human (or really smart animals I guess). This is simply the [most complete article](http://msdn.microsoft.com/asp.net/using/building/web/default.aspx?pull=/library/en-us/dnaspp/html/hip_aspnet.asp) on the topic for ASP.NET I've ever seen! Great work Stephen!

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Great post on 'Human Interactive proofs' or those screwy letter things where you have to type in some letters...

Wednesday, 06 September 2006

Great post on 'Human Interactive proofs' or those screwy letter things where you have to type in some letters...

posted on Thursday, September 23, 2004 11:23 PM

Stephen Toub has just posted that he's had an article go live on MSDN which has some really stunning applications of the 'CAPTCHA' technique for proving that people entering data are really human (or really smart animals I guess). This is simply the most complete article on the topic for ASP.NET I've ever seen! Great work Stephen!