On 03-10-12 09:47, Oscar Koeroo wrote:
> Hi,
>
> Do you have more information on how/why it failed. For example by using
the verbose output?>
>
> There are two options to toggle:
> curl_easy_setopt(hc->curl, CURLOPT_SSL_VERIFYPEER, 1L);
> curl_easy_setopt(hc->curl, CURLOPT_SSL_VERIFYHOST, 2L);
>
> Details are available in the documentation. Setting both to zero is equal
to the "-k" option.>
>
>
> If you also want to remove the usage of the default included CA bundle
(this is an add-on to the previous options), then you could write a small
SSL_CTX > callback function:
> curl_easy_setopt(hc->curl, CURLOPT_SSL_CTX_FUNCTION,
*sslctx_function);
>
> This callback function will prepare a bare SSL_CTX and by default is has
no default CA location inclusion, like the CA bundle file.
>
>
> Oscar
>
> On 02-10-12 19:55, Bill Lear wrote:
> > I have an unusual situation with an embedded SSL client using libcurl.
> >
> > I need to send a client certificate to the server for validation even
> > though the client does not validate the server certificate.
> > (CURLOPT_SSL_VERIFYPEER = 0)
> >
> > Is this possible? I have confirmed that I can establish a connection
when I supply a CACert bundle and set VERIFYPEER = 1, but the connection is
refused when I set VERIFYPEER = 0.
> >
> > Thanks,
> >
> > Bill
Oscar, Sorry for the delayed response.
I found a way to avoid the problem I was seeing.
The failing test code was:
curl_easy_setopt(hCurl, CURLOPT_SSLCERT, "path/to/ClientCert");
curl_easy_setopt(hCurl, CURLOPT_CAINFO, "path/to/CABundle");
curl_easy_setopt(hCurl, CURLOPT_SSL_VERIFYHOST, 2L);
curl_easy_setopt(hCurl, CURLOPT_SSL_VERIFYPEER, 0); // set to 1 to
validate server cert, 0 to skip validation
.
curl_easy_perform(hCurl);
With this code, when I set CURLOPT_SSL_VERIFYPEER to 0, libcurl verbose
messages would correctly indicate,
"self signed certificate in certificate chain (19), continuing anyway."
but the connection would fail (server would return 500).
When I changed the code to a more appropriate version:
curl_easy_setopt(hCurl, CURLOPT_SSLCERT, "path/to/ClientCert");
curl_easy_setopt(hCurl, CURLOPT_CAINFO, NULL);
curl_easy_setopt(hCurl, CURLOPT_SSL_VERIFYHOST, 0);
curl_easy_setopt(hCurl, CURLOPT_SSL_VERIFYPEER, 0);
I was able to correctly establish a connection without validating the server
certificate.
I did not have time to investigate why this fixed my problem, but am happy
with the results.
Thanks
-------------------------------------------------------------------
List admin: http://cool.haxx.se/list/listinfo/curl-library
Etiquette: http://curl.haxx.se/mail/etiquette.html
