using HttpWebRequest to access SSL-enabled site, get error: Could not establish secure channel for SSL/TLS

[Steven Pu]

Hi,

Specifically, the website I am trying to access is,

https://gmail.google.com/

I've read elsewhere that Google only uses SSL2, while .NET uses SSL3
and is not backward compatible. Is this true?

In any case, I want to know how this problem can be solved. The code
I'm using is dead simple,

HttpWebRequest req;
HttpWebResponse res;

req = (HttpWebRequest )HttpWebRequest .Create("https://gmail.google.co m");
res = (HttpWebRespons e)req.GetRespon se();

Any help would be greatly appreciated. Thanks.

Cheers,
Steven

[Trebek]

Simply implement ICertificatePol icy in your class and return true from the
'CheckValidatio nResult' method

HTH,

Alex

"Steven Pu" <re******@gmail .com> wrote in message
news:5b******** *************** **@posting.goog le.com...

Hi,

Specifically, the website I am trying to access is,

https://gmail.google.com/

I've read elsewhere that Google only uses SSL2, while .NET uses SSL3
and is not backward compatible. Is this true?

In any case, I want to know how this problem can be solved. The code
I'm using is dead simple,

HttpWebRequest req;
HttpWebResponse res;

req = (HttpWebRequest )HttpWebRequest .Create("https://gmail.google.co m");
res = (HttpWebRespons e)req.GetRespon se();

Any help would be greatly appreciated. Thanks.

Cheers,
Steven

[Joerg Jooss]

Trebek wrote:

Simply implement ICertificatePol icy in your class and return true
from the 'CheckValidatio nResult' method

I doubt that this will help in case the underlying protocol is not
supported. Does it?

--
Joerg Jooss
jo*********@gmx .net

[Steven Pu]

Hi Alex,

To tell you the truth, I really have no idea how this works - I'm
pretty new at this.

After looking up ICertifcatePoli cy, I really don't see how it helps
me. My guess is that the reason HttpWebRequest fails is due to some
kind of error/incompatibiliti es of the request itself, so shouldn't I
be changing some properties of the request object? How does
ICertificatePol icy come in?

Thanks.

Cheers,
Steven
"Trebek" <tr****@nospam. com> wrote in message news:<Ux******* ********@fe37.u senetserver.com >...

Simply implement ICertificatePol icy in your class and return true from the
'CheckValidatio nResult' method

HTH,

Alex

"Steven Pu" <re******@gmail .com> wrote in message
news:5b******** *************** **@posting.goog le.com...

Hi,

Specifically, the website I am trying to access is,

https://gmail.google.com/

I've read elsewhere that Google only uses SSL2, while .NET uses SSL3
and is not backward compatible. Is this true?

In any case, I want to know how this problem can be solved. The code
I'm using is dead simple,

HttpWebRequest req;
HttpWebResponse res;

req = (HttpWebRequest )HttpWebRequest .Create("https://gmail.google.co m");
res = (HttpWebRespons e)req.GetRespon se();

Any help would be greatly appreciated. Thanks.

Cheers,
Steven

[Peer Jakobsen]

Hi Steven,

It wont help you if you create your own CertificatePoli cy class that
accepts all certificates. The problem really is that Microsoft for
some strange reason only implemented SSL 3.0 support in
HttpWebRequest.

As you mentioned, Google runs SSL 2.0, hence the only solution is to
use another HTTP component.

I first tried PocketHTTP, which is free, and it worked really great
until i needed to do a HTTP Post with content type
"multipart/form-data". I then switched to the "IPWorks SSL V6 .Net
Edition" component (400$) and i haven't had any problems since.

Regards,

Peer

re******@gmail. com (Steven Pu) wrote in message news:<5b******* *************** ***@posting.goo gle.com>...

Hi Alex,

To tell you the truth, I really have no idea how this works - I'm
pretty new at this.

After looking up ICertifcatePoli cy, I really don't see how it helps
me. My guess is that the reason HttpWebRequest fails is due to some
kind of error/incompatibiliti es of the request itself, so shouldn't I
be changing some properties of the request object? How does
ICertificatePol icy come in?

Thanks.

Cheers,
Steven
"Trebek" <tr****@nospam. com> wrote in message news:<Ux******* ********@fe37.u senetserver.com >...

Simply implement ICertificatePol icy in your class and return true from the
'CheckValidatio nResult' method

HTH,

Alex

"Steven Pu" <re******@gmail .com> wrote in message
news:5b******** *************** **@posting.goog le.com...

Hi,

Specifically, the website I am trying to access is,

https://gmail.google.com/

I've read elsewhere that Google only uses SSL2, while .NET uses SSL3
and is not backward compatible. Is this true?

In any case, I want to know how this problem can be solved. The code
I'm using is dead simple,

HttpWebRequest req;
HttpWebResponse res;

req = (HttpWebRequest )HttpWebRequest .Create("https://gmail.google.co m");
res = (HttpWebRespons e)req.GetRespon se();

Any help would be greatly appreciated. Thanks.

Cheers,
Steven