Re: captcha
Ryan Chapman <[email protected]> Mon, 2 Jan 2012 20:04:42 -0500
| Newsgroups | gmane.comp.security.full-disclosure,gmane.network.openssh.general,gmane.comp.security.forensics,gmane.comp.security.web-applications,gmane.comp.security.virus,gmane.comp.security.dailydave,gmane.comp.security.ids,gmane.comp.security.bugtraq,gmane.comp.security.nmap.general,gmane.comp.security.basics,gmane.comp.security.cryptography.securityfocus |
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| Message-ID | <CALnRxkx0tZY_trjF78siMcG9xCOEg0EhLTY3hmU8D2XVm7M8Bw@mail.gmail.com> |
--===============1297461272== Content-Type: multipart/alternative; boundary=20cf30780c9ac3624404b5954872 --20cf30780c9ac3624404b5954872 Content-Type: text/plain; charset=ISO-8859-1 Awesome topic, i'm looking forward to hearing alot more about this. There is Ted talking video explaining, but not into the security end of it. http://blog.ted.com/2011/12/06/massive-scale-online-collaboration-luis-von-ahn-on-ted-com/ On Mon, Jan 2, 2012 at 10:56, Jan van Niekerk <[email protected]> wrote: > On Sun, Jan 1, 2012 at 3:43 PM, ebhakt <[email protected]> wrote: > > Hii guys, > Hii Ebhakt > > > I want to know the logic behind creating a captcha imagey > > I know how the servers are designed and what the captcha security does!! > > but how the captcha imagae is generated > > that's my main question !! > The code that generates captcha imagey is top secret proprietary > software. Only the top software engineers of the global captcha > security firms have access to the source code, and then only when each > one of them provides half of the security key to decode the system. > The code is never actually loaded in memory. If this code ever got > into the wrong hands then the entire captcha security system would be > broken. > > > > Any ideas , guesses !! > Maybe do a dictionary attack. > > Just mail around !! > > > > Thanks > your welcome hopes this helps > > ------------------------------------------------------------------------ > Securing Apache Web Server with thawte Digital Certificate > In this guide we examine the importance of Apache-SSL and who needs an SSL > certificate. We look at how SSL works, how it benefits your company and > how your customers can tell if a site is secure. You will find out how to > test, purchase, install and use a thawte Digital Certificate on your Apache > web server. Throughout, best practices for set-up are highlighted to help > you ensure efficient ongoing management of your encryption keys and digital > certificates. > > > http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1 > ------------------------------------------------------------------------ > > -- Ryan Chapman 514.245.0498 --20cf30780c9ac3624404b5954872 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Awesome topic, i'm looking forward to hearing alot more about this.<div= >There is Ted talking video explaining, but not into the security end of it= .</div><div><br></div><div><a href=3D"http://blog.ted.com/2011/12/06/massiv= e-scale-online-collaboration-luis-von-ahn-on-ted-com/">http://blog.ted.com/= 2011/12/06/massive-scale-online-collaboration-luis-von-ahn-on-ted-com/</a>= =A0</div> <div><br></div><div><br><div class=3D"gmail_quote">On Mon, Jan 2, 2012 at 1= 0:56, Jan van Niekerk <span dir=3D"ltr"><<a href=3D"mailto:jvnkrk@gmail.= com">[email protected]</a>></span> wrote:<br><blockquote class=3D"gmail_q= uote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1e= x"> On Sun, Jan 1, 2012 at 3:43 PM, ebhakt <<a href=3D"mailto:[email protected]= om">[email protected]</a>> wrote:<br> > Hii guys,<br> Hii Ebhakt<br> <br> > I want to know the logic behind creating a captcha imagey<br> > I know how the servers are designed and what the captcha security does= !!<br> > but how the captcha imagae is generated<br> > that's my main question !!<br> The code that generates captcha imagey is top secret proprietary<br> software. =A0Only the top software engineers of the global captcha<br> security firms have access to the source code, and then only when each<br> one of them provides half of the security key to decode the system.<br> The code is never actually loaded in memory. =A0If this code ever got<br> into the wrong hands then the entire captcha security system would be<br> broken.<br> ><br> > Any ideas , guesses !!<br> Maybe do a dictionary attack.<br> > Just mail around !!<br> ><br> > Thanks<br> your welcome hopes this helps<br> <br> ------------------------------------------------------------------------<br= > Securing Apache Web Server with thawte Digital Certificate<br> In this guide we examine the importance of Apache-SSL and who needs an SSL = certificate. =A0We look at how SSL works, how it benefits your company and = how your customers can tell if a site is secure. You will find out how to t= est, purchase, install and use a thawte Digital Certificate on your Apache = web server. Throughout, best practices for set-up are highlighted to help y= ou ensure efficient ongoing management of your encryption keys and digital = certificates.<br> <br> <a href=3D"http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e1= 3b6be442f727d1" target=3D"_blank">http://www.dinclinx.com/Redirect.aspx?36;= 4175;25;1371;0;5;946;e13b6be442f727d1</a><br> ------------------------------------------------------------------------<br= > <br> </blockquote></div><br><br clear=3D"all"><div><br></div>-- <br>Ryan Chapman= <br>514.245.0498<br> </div> --20cf30780c9ac3624404b5954872-- --===============1297461272== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Full-Disclosure - We believe in it. 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