Xojo Plugin

SFTP Host Key Fingerprint

See more SFTP Examples

Demonstrates how to get the SSH server's host key fingerprint after connecting. Xojo Plugin

Dim success As Boolean
success = False

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Dim sftp As New Chilkat.SFtp

Dim hostname As String
hostname = "sftp.example.com"
Dim port As Int32
port = 22
success = sftp.Connect(hostname,port)
If (success <> True) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

// Get the classic MD5 fingeprint
Dim md5_fingerprint As String
md5_fingerprint = sftp.HostKeyFingerprint
System.DebugLog(md5_fingerprint)

// Sample output:
// ssh-rsa 3072 21:b0:d8:41:4e:ef:78:10:20:af:01:b7:71:5d:eb:94

// Starting in Chilkat v9.5.0.92, we can also get the SHA256 fingerprint.
// (it is also possible to get fingerprints using other hash algorithms such as SHA384, SHA512, etc.)

Dim includeKeyType As Boolean
includeKeyType = True
Dim includeHashName As Boolean
includeHashName = True
Dim sha256_fingerprint As String
sha256_fingerprint = sftp.GetHostKeyFP("SHA256",includeKeyType,includeHashName)
System.DebugLog(sha256_fingerprint)

// Sample output:
// ssh-rsa SHA256:Ufgj480OsdsCZRjj9sSNM6fpgIcSJ61RsIG8usndUIY=

// The key type and hash name can be optionally included or not.
includeKeyType = False
includeHashName = True
sha256_fingerprint = sftp.GetHostKeyFP("SHA256",includeKeyType,includeHashName)
System.DebugLog(sha256_fingerprint)

// SHA256:Ufgj480OsdsCZRjj9sSNM6fpgIcSJ61RsIG8usndUIY=

includeKeyType = True
includeHashName = False
sha256_fingerprint = sftp.GetHostKeyFP("SHA256",includeKeyType,includeHashName)
System.DebugLog(sha256_fingerprint)

// ssh-rsa Ufgj480OsdsCZRjj9sSNM6fpgIcSJ61RsIG8usndUIY=

includeKeyType = False
includeHashName = False
sha256_fingerprint = sftp.GetHostKeyFP("SHA256",includeKeyType,includeHashName)
System.DebugLog(sha256_fingerprint)

// Ufgj480OsdsCZRjj9sSNM6fpgIcSJ61RsIG8usndUIY=