Long: hostpubsha256 Arg: Help: Acceptable SHA256 hash of the host public key Protocols: SFTP SCP Added: 7.80.0 Category: sftp scp Example: --hostpubsha256 NDVkMTQxMGQ1ODdmMjQ3MjczYjAyOTY5MmRkMjVmNDQ= sftp://example.com/ See-also: hostpubmd5 --- Pass a string containing a Base64-encoded SHA256 hash of the remote host's public key. Curl will refuse the connection with the host unless the hashes match.