1CURLOPT_SSLKEY(3) curl_easy_setopt options CURLOPT_SSLKEY(3)
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6 CURLOPT_SSLKEY - private keyfile for TLS and SSL client cert
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9 #include <curl/curl.h>
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11 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSLKEY, char *keyfile);
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14 Pass a pointer to a null-terminated string as parameter. The string
15 should be the file name of your private key. The default format is
16 "PEM" and can be changed with CURLOPT_SSLKEYTYPE(3).
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18 (iOS and Mac OS X only) This option is ignored if curl was built
19 against Secure Transport. Secure Transport expects the private key to
20 be already present in the keychain or PKCS#12 file containing the cer‐
21 tificate.
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23 The application does not have to keep the string around after setting
24 this option.
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27 NULL
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30 All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
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33 CURL *curl = curl_easy_init();
34 if(curl) {
35 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
36 curl_easy_setopt(curl, CURLOPT_SSLCERT, "client.pem");
37 curl_easy_setopt(curl, CURLOPT_SSLKEY, "key.pem");
38 curl_easy_setopt(curl, CURLOPT_KEYPASSWD, "s3cret");
39 ret = curl_easy_perform(curl);
40 curl_easy_cleanup(curl);
41 }
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44 If built TLS enabled.
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47 Returns CURLE_OK if TLS is supported, CURLE_UNKNOWN_OPTION if not, or
48 CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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51 CURLOPT_SSLKEYTYPE(3), CURLOPT_SSLCERT(3),
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55libcurl 7.82.0 November 26, 2021 CURLOPT_SSLKEY(3)