Go

SSH Host Key Fingerprint

See more SSH Examples

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

    success := false

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

    ssh := chilkat.NewSsh()

    hostname := "ssh.example.com"
    port := 22
    success = ssh.Connect(hostname,port)
    if success != true {
        fmt.Println(ssh.LastErrorText())
        ssh.DisposeSsh()
        return
    }

    // Get the classic MD5 fingeprint
    md5_fingerprint := ssh.HostKeyFingerprint()
    fmt.Println(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.)

    includeKeyType := true
    includeHashName := true
    sha256_fingerprint := ssh.GetHostKeyFP("SHA256",includeKeyType,includeHashName)
    fmt.Println(*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 = ssh.GetHostKeyFP("SHA256",includeKeyType,includeHashName)
    fmt.Println(*sha256_fingerprint)

    // SHA256:Ufgj480OsdsCZRjj9sSNM6fpgIcSJ61RsIG8usndUIY=

    includeKeyType = true
    includeHashName = false
    sha256_fingerprint = ssh.GetHostKeyFP("SHA256",includeKeyType,includeHashName)
    fmt.Println(*sha256_fingerprint)

    // ssh-rsa Ufgj480OsdsCZRjj9sSNM6fpgIcSJ61RsIG8usndUIY=

    includeKeyType = false
    includeHashName = false
    sha256_fingerprint = ssh.GetHostKeyFP("SHA256",includeKeyType,includeHashName)
    fmt.Println(*sha256_fingerprint)

    // Ufgj480OsdsCZRjj9sSNM6fpgIcSJ61RsIG8usndUIY=

    ssh.DisposeSsh()