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CURLOPT_KEYPASSWD(3) curl_easy_setopt options CURLOPT_KEYPASSWD(3)
CURLOPT_KEYPASSWD - passphrase to private key
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_KEYPASSWD, char *pwd);
Pass a pointer to a null-terminated string as parameter. It will be
used as the password required to use the CURLOPT_SSLKEY(3) or
CURLOPT_SSH_PRIVATE_KEYFILE(3) private key. You never need a pass
phrase to load a certificate but you need one to load your private key.
The application does not have to keep the string around after setting
All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
curl_easy_setopt(curl, CURLOPT_SSLCERT, "client.pem");
curl_easy_setopt(curl, CURLOPT_SSLKEY, "key.pem");
curl_easy_setopt(curl, CURLOPT_KEYPASSWD, "superman");
ret = curl_easy_perform(curl);
This option was known as CURLOPT_SSLKEYPASSWD up to 7.16.4 and
CURLOPT_SSLCERTPASSWD up to 7.9.2.
Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or
CURLE_OUT_OF_MEMORY if there was insufficient heap space.
libcurl 7.87.0 October 11, 2022 CURLOPT_KEYPASSWD(3)