(Go) SFTP Public-Key Authentication (id_ed25519)

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Demonstrates how to authenticate with an SSH/SFTP server using publickey authentication with an Ed25519 private key (id_ed25519).

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

    key := chilkat.NewSshKey()

    // The id_ed25519 file should contain something like this:
    // (You can open it in a text editor..)

    // -----BEGIN OPENSSH PRIVATE KEY-----
    // b3BlbnNzaC1rZXktdjEAAAAACmFlczI1Ni1jdHIAAAAGYmNyeXB0AAAAGAAAABDIeK9+Xw
    // 6Do9gnhtrJu5iJAAAAZAAAAAEAAAAzAAAAC3NzaC1lZDI1NTE5AAAAIMh/Ge7fjQCssmVd
    // BqjYZbRAI0pY8IrnB6J1yLetq34OAAAAoMVP7cvy4hTiAINA3I4v55OonkpKza8mzfUW18
    // RDQeYL3ovCVaAYOGcCpf/SW3QiY6tnXq+5WDEfJ7Z/kQ0nl2+1wSLOytxpyO+IY0rRtLrX
    // 6e/agR4nbZpt/MFG6xqcNASbtDgg+9IWGvDrtXOLFofx07/zml+UjFL0tXRpCjOxeqKyXH
    // t8SRgdT97d9/bYPwapaXY+b2DVVy5/LVx4Sq8=
    // -----END OPENSSH PRIVATE KEY-----

    privKeyText := key.LoadText("c:/temp/id_ed25519")
    if key.LastMethodSuccess() != true {
        fmt.Println(key.LastErrorText())
        key.DisposeSshKey()
        return
    }

    // If your private key was saved encrypted, then you'll need the password.
    // In this example, the password "blahblah" is valid for the above key -- which is a real Ed25519 key generated/saved from puttygen.
    key.SetPassword("blahblah")

    success := key.FromOpenSshPrivateKey(*privKeyText)
    if success != true {
        fmt.Println(key.LastErrorText())
        key.DisposeSshKey()
        return
    }

    sftp := chilkat.NewSFtp()

    // Set some timeouts, in milliseconds:
    sftp.SetConnectTimeoutMs(5000)
    sftp.SetIdleTimeoutMs(15000)

    hostname := "sftp.example.com"
    port := 22
    success := sftp.Connect(hostname,port)
    if success != true {
        fmt.Println(sftp.LastErrorText())
        key.DisposeSshKey()
        sftp.DisposeSFtp()
        return
    }

    // Authenticate with the SSH server.  Chilkat SFTP supports
    // both password-based authenication as well as public-key
    // authentication.  
    success = sftp.AuthenticatePk("myLogin",key)
    if success != true {
        fmt.Println(sftp.LastErrorText())
        key.DisposeSshKey()
        sftp.DisposeSFtp()
        return
    }

    fmt.Println(sftp.LastErrorText())
    fmt.Println("Public-Key Authentication Successful!")

    // Now go do whatever you're app needs to do...

    key.DisposeSshKey()
    sftp.DisposeSFtp()