curl/docs/libcurl/opts/CURLOPT_KEYPASSWD.md
Daniel Stenberg 5a488251f7
curldown: fixups
- make DEFAULT sections less repetitive

- make historic mentions use HISTORY

- generate the protocols section on `# %PROTOCOLS%` instead of guessing
  where to put it

- generate the availability section on `# %AVAILABILITY%` instead of
  guessing where to put it

- make the protocols section more verbose

Closes #14227
2024-07-19 17:03:25 +02:00

76 lines
1.5 KiB
Markdown

---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, 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
Added-in: 7.17.0
---
# NAME
CURLOPT_KEYPASSWD - passphrase to private key
# SYNOPSIS
~~~c
#include <curl/curl.h>
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 passphrase 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
# %PROTOCOLS%
# 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);
}
}
~~~
# HISTORY
This option was known as CURLOPT_SSLKEYPASSWD up to 7.16.4 and
CURLOPT_SSLCERTPASSWD up to 7.9.2.
# %AVAILABILITY%
# RETURN VALUE
Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or
CURLE_OUT_OF_MEMORY if there was insufficient heap space.