CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256(3) Library Functions Manual
NAME
CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 - SHA256 hash of SSH server public
key
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256,
char *sha256);
DESCRIPTION
Pass a char pointer pointing to a string containing a Base64-encoded
SHA256 hash of the remote host's public key. The transfer fails if the
given hash does not match the hash the remote host provides.
The application does not have to keep the string around after setting
this option.
Using this option multiple times makes the last set string override the
previous ones. Set it to NULL to disable its use again.
DEFAULT
NULL
PROTOCOLS
This functionality affects scp and sftp
EXAMPLE
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "sftp://example.com/file");
curl_easy_setopt(curl, CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256,
"NDVkMTQxMGQ1ODdmMjQ3MjczYjAyOTY5MmRkMjVmNDQ=");
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
NOTES
Requires the libssh2 backend.
AVAILABILITY
Added in curl 7.80.0
RETURN VALUE
curl_easy_setopt(3) returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non-zero means an error occurred,
see libcurl-errors(3).
SEE ALSO
CURLOPT_SSH_AUTH_TYPES(3), CURLOPT_SSH_HOST_PUBLIC_KEY_MD5(3),
CURLOPT_SSH_PUBLIC_KEYFILE(3)
libcurl 2025-02-08
CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256(3)
curl 8.12.0 - Generated Wed Feb 19 07:53:24 CST 2025