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POlib cCURL with https throws error
 

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    <p>I have written C curl application code to test my server TLS connection using my own certificates and own server setup with AES-ECC-CCM chiper suite . but I got the error at the client side as curl unable to load the given chiper suite . hence here with I put my code.. am I following the correct way to select the chiper suite at the client side ..?and code is correct ..?</p> <pre><code>CURL *curl; CURLcode res; FILE *headerfile; const char *pPassphrase = NULL; static const char *pCertFile = "/root/rev/mysert.der"; static const char *pCACertFile="/root/rev/cacert.der"; const char *pKeyName; const char *pKeyType; const char *pEngine; pKeyName = "/root/rev/testkey.der"; pKeyType = "DER"; headerfile = fopen("dumpit", "w"); curl_global_init(CURL_GLOBAL_DEFAULT); curl = curl_easy_init(); if(curl) { /* what call to write: */ curl_easy_setopt(curl, CURLOPT_URL, "https://192.168.1.121/test"); curl_easy_setopt(curl, CURLOPT_WRITEHEADER, headerfile); while(1) /* do some ugly short cut... */ { /*SET THE CIPHER TO ECC-CCM */ **curl_easy_setopt(curl,CURLOPT_SSL_CIPHER_LIST,"TLS_ECDHE_ECDSA_WITH_AES_128_CCM");** curl_easy_setopt(curl,CURLOPT_SSLCERTTYPE,"DER"); /* set the cert for client authentication */ curl_easy_setopt(curl,CURLOPT_SSLCERT,pCertFile); /* sorry, for engine we must set the passphrase (if the key has one...) */ if (pPassphrase) curl_easy_setopt(curl,CURLOPT_KEYPASSWD,pPassphrase); /* if we use a key stored in a crypto engine, we must set the key type to "ENG" */ curl_easy_setopt(curl,CURLOPT_SSLKEYTYPE,pKeyType); /* set the private key (file or ID in engine) */ curl_easy_setopt(curl,CURLOPT_SSLKEY,pKeyName); /* set the file with the certs vaildating the server */ curl_easy_setopt(curl,CURLOPT_CAINFO,pCACertFile); /* disconnect if we can't validate server's cert */ curl_easy_setopt(curl,CURLOPT_SSL_VERIFYPEER,1L); /* Perform the request, res will get the return code */ res = curl_easy_perform(curl); /* Check for errors */ if(res != CURLE_OK) fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res)); break; /* we are done... */ } /* always cleanup */ curl_easy_cleanup(curl); } curl_global_cleanup(); </code></pre>
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