--- c: Copyright (C) Daniel Stenberg, , et al. SPDX-License-Identifier: curl Long: hostpubsha256 Arg: Help: Acceptable SHA256 hash of host public key Protocols: SFTP SCP Added: 7.80.0 Category: sftp scp ssh Multi: single See-also: - hostpubmd5 Example: - --hostpubsha256 NDVkMTQxMGQ1ODdmMjQ3MjczYjAyOTY5MmRkMjVmNDQ= sftp://example.com/ --- # `--hostpubsha256` Pass a string containing a Base64-encoded SHA256 hash of the remote host's public key. curl refuses the connection with the host unless the hashes match.