Re: How to perform SSL certificate validation ?

["Nagareshwar Talekar" <tnagareshwar () gmail com>]

Hi List,

    Thanks for  all the suggestions and ideas. I had lot of
confusions in the begining and most of them is resolved now :-)

   It turned out to be lotta complex than I thought to be :-)

   Thanks for spending your time on this.


On 7/11/06, Max <Reply.to.list () acme com> wrote:
> Have a look at this application:
>
> http://www.download.com/Globaltrust-Verification-Engine/3000-2144_4-10529972.html?tag=lst-0-1
>
> M@x
>
>
> Nagareshwar Talekar wrote:
> > Hi List,
> >
> > I am working on implementation of LDAP client where in there is
> > requirement
> > to validate the server's ssl certificate. This is similar to what
> > browser  does in case of ssl enabled website. After reading few
> > articles over net  I came to know that following checks needs to be
> > done for verfication of ssl certificate.
> >
> >       1) Check if certificate is not expired.
> >       2) Common name on the certificate matches the DNS name of the
> > server.
> >       3) Checks if the CA is trused.
> >
> >  I don't know how to perform the check for 3rd step. How can we ensure
> >  that CA is trusted? One of my colleague told that I have to store all
> > trusted
> >  root certificates and then compare incoming certificate with existing
> > ones..
> >
> >  Is there any better way to check this ...?
> >
> >  Also I was told that certificate validation is done to prevent the
> > SSL-MITM attack
> >  Is this the only reason or is there any other reason for which the
> > SSL certificate
> >  validation is done ?
> >
> > It will be great if you can throw some light in this matter. Any
> > links to relevant
> > websites will do as well.
> >
> > Thanks
> >


--
With Regards
Nagareshwar

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