HTTPS And VB.Net Apps

[tomb]

Saeid Bagheri asked a very good question, and I've seen this question
here before but I have never seen it answered. Can VB.Net desktop apps
utilize https? If so, how?

Tom

[Mudhead]

Re: HTTPS And VB.Net Apps

Free: http://www.mentalis.org/soft/projects/ssocket/
Buy component: http://www.dart.com/powertcp/secure_environments.asp
Specifications: http://wp.netscape.com/eng/ssl3/draft302.txt

"tomb" <tomb@technetce nter.comwrote in message
news:AmoFg.2162 8$q96.11432@big news4.bellsouth .net...

Saeid Bagheri asked a very good question, and I've seen this question here
before but I have never seen it answered. Can VB.Net desktop apps utilize
https? If so, how?
>
Tom

[gene kelley]

Re: HTTPS And VB.Net Apps

On Fri, 18 Aug 2006 15:18:00 -0400, tomb <tomb@technetce nter.comwrote:

>Saeid Bagheri asked a very good question, and I've seen this question
>here before but I have never seen it answered. Can VB.Net desktop apps
>utilize https? If so, how?
>
>Tom

I asked about this myself some weeks ago in the context of simply wanting to download selected files
with HTTPS urls using WebClient. The current Help file talks about how to do this, but leads to an
example that returns a warning/error that the method is obsolete. The current Help file (nor MSDN)
had any example on how to use the suggested replacement method.

For my particular needs, I eventually wound up with this relatively simple method:

Imports System.Net.Secu rity
Imports System.Security .Crytopgaphy.X5 09Certificates

Try
ServicePointMan ager.ServerCert ificateValidati onCallback = New _
RemoteCertifica teValidationCal lback(AddressOf ValidateCertifi cate)

WebClient1.Down loadDataAsync(u ri)

Catch


End Try

Private Function ValidateCertifi cate(ByVal sender As Object, _
ByVal certificate As X509Certificate , ByVal chain As X509Chain, _
ByVal sslPolicyErrors As SslPolicyErrors ) As Boolean

'Return True to force the certificate to be accepted.
Return True
End Function

In the above snippet, when the URI contains HTTPS, the certificate is accepted (the user ceritficate
dialog is not displayed) and the download preceeds. This works for my specific need in this case,
but others may want user intereaction with the certificate dialog.

Gene

[tomb]

Re: HTTPS And VB.Net Apps

EXCELLENT!!!

T

gene kelley wrote:

>On Fri, 18 Aug 2006 15:18:00 -0400, tomb <tomb@technetce nter.comwrote:
>
>
>

>>Saeid Bagheri asked a very good question, and I've seen this question
>>here before but I have never seen it answered. Can VB.Net desktop apps
>>utilize https? If so, how?
>>
>>Tom
>>
>>

>
>I asked about this myself some weeks ago in the context of simply wanting to download selected files
>with HTTPS urls using WebClient. The current Help file talks about how to do this, but leads to an
>example that returns a warning/error that the method is obsolete. The current Help file (nor MSDN)
>had any example on how to use the suggested replacement method.
>
>For my particular needs, I eventually wound up with this relatively simple method:
>
>Imports System.Net.Secu rity
>Imports System.Security .Crytopgaphy.X5 09Certificates
>
>Try
>ServicePointMa nager.ServerCer tificateValidat ionCallback = New _
>RemoteCertific ateValidationCa llback(AddressO f ValidateCertifi cate)
>
>WebClient1.Dow nloadDataAsync( uri)
>
>Catch
>
>
>End Try
>
Private Function ValidateCertifi cate(ByVal sender As Object, _
ByVal certificate As X509Certificate , ByVal chain As X509Chain, _
ByVal sslPolicyErrors As SslPolicyErrors ) As Boolean
>
'Return True to force the certificate to be accepted.
Return True
End Function
>
>In the above snippet, when the URI contains HTTPS, the certificate is accepted (the user ceritficate
>dialog is not displayed) and the download preceeds. This works for my specific need in this case,
>but others may want user intereaction with the certificate dialog.
>
>Gene
>
>