Hello, I am trying to use libcurl in C to connect a site that uses client SSL authentication. I can acheive this task with curl, but not libcurl.
Successful example with curl $ curl -vv -E cert.pem https://someURL * About to connect() to someURL port 443 (#0) * Trying 1.2.3.4... connected * Connected to someURL (1.2.3.4) port 443 (#0) Enter PEM pass phrase: * successfully set certificate verify locations: * CAfile: none CApath: /etc/ssl/certs .... .... ... Webpages dowloads succesfully and I can see some debuging output I added in PHP verifying that the client certificate was used. I have taken the simplessl.c example from the your site and changed only the following lines so far. const char *pPassphrase = "<PASSWORD SET HERE>"; static const char *pCertFile = "cert.pem"; static const char *pCACertFile="cert.pem"; pKeyName = "cert.pem"; pKeyType = "PEM"; pEngine = NULL; curl_easy_setopt(curl, CURLOPT_VERBOSE, 1); The result of this is as follows $ gcc -lcurl simplessl.c $ ./a.out * About to connect() to https://someURL port 443 (#0) * Trying 1.2.3.4... * connected * Connected to someURL (1.2.3.4) port 443 (#0) * found 142 certificates in /etc/ssl/certs/ca-certificates.crt * error reading X.509 key or certificate file * Closing connection #0 * SSL connect error curl_easy_perform() failed: SSL connect error I would greatly appreciate any help or advice you may be able to give.
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