--- c: Copyright (C) Daniel Stenberg, , et al. SPDX-License-Identifier: curl Title: CURLOPT_KEYPASSWD Section: 3 Source: libcurl See-also: - CURLOPT_SSH_PRIVATE_KEYFILE (3) - CURLOPT_SSLKEY (3) Protocol: - TLS TLS-backend: - OpenSSL - mbedTLS - Schannel - wolfSSL --- # NAME CURLOPT_KEYPASSWD - passphrase to private key # SYNOPSIS ~~~c #include CURLcode curl_easy_setopt(CURL *handle, CURLOPT_KEYPASSWD, char *pwd); ~~~ # DESCRIPTION Pass a pointer to a null-terminated string as parameter. It is 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 this option. # DEFAULT NULL # EXAMPLE ~~~c int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode res; 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"); res = curl_easy_perform(curl); curl_easy_cleanup(curl); } } ~~~ # AVAILABILITY This option was known as CURLOPT_SSLKEYPASSWD up to 7.16.4 and CURLOPT_SSLCERTPASSWD up to 7.9.2. # RETURN VALUE Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.