Session.ScanFingerprint Method

Scans a fingerprint of SSH server public key (host key) or FTPS/WebDAVS TLS certificate.


public string ScanFingerprint(
    SessionOptions sessionOptions,
    string algorithm
Public Function ScanFingerprint(
    sessionOptions As SessionOptions,
    algorithm As String
) As String


Name Description
SessionOptions sessionOptions Defines a server to scan the fingerprint of.
The Protocol property must be Protocol.Sftp or Protocol.Scp, or Protocol.Ftp with FtpSecure being FtpSecure.Implicit or FtpSecure.Explicit, or Protocol.Webdav with WebdavSecure being true. Other than that only the HostName needs to be set. The PortNumber, Timeout and few raw session settings can be set, if necessary. The other properties are ignored.
string algorithm Fingerprint algorithm to use.
Supported algorithms are SHA-256 (recommended with SFTP and SCP protocols) and MD5 (the only supported option with FTPS and WebDAVS. With SFTP and SCP protocols, it should be used only for backward compatibility with previous versions).
This parameter is present since version 5.13 only. Older versions lack the parameter and use MD5 algorithm.

Return Value

A fingerprint of the SSH server public key (hostkey) for SFTP and SCP protocols. A fingerprint of server's TLS certificate for FTPS and WebDAVS protocols.



Exception Condition
InvalidOperationException Session is already opened.
Invalid combination of values of SessionOptions properties.
SessionLocalException Error communicating with
See the exception documentation for details.
SessionRemoteException Connection has failed.
See the exception documentation for details.
TimeoutException Timeout waiting for to respond.


Real-Life Examples

Last modified: by martin