(PowerBuilder) SSH Tunnel Authenticate Secure

Demonstrates how to do SSH password authentication with secure strings.

This example requires Chilkat v9.5.0.71 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
integer li_Success
oleobject loo_Json
oleobject loo_Crypt
oleobject loo_SsLogin
oleobject loo_SsPassword
oleobject loo_Tunnel

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

// Imagine we've previously saved our encrypted login and password within a JSON config file
// that contains this:

// {
//   "ssh_login": "2+qylFfC56Ck7OQQt/U2/w==",
//   "ssh_password": "5neIq9Jmn0E3p71N6Yc8TA=="
// }

loo_Json = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")
if li_rc < 0 then
    destroy loo_Json
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_Json.LoadFile("qa_data/passwords/ssh.json")

loo_Crypt = create oleobject
// Use "Chilkat_9_5_0.Crypt2" for versions of Chilkat < 10.0.0
li_rc = loo_Crypt.ConnectToNewObject("Chilkat.Crypt2")

// These are the encryption settings we previously used to encrypt the credentials within the JSON config file.
loo_Crypt.CryptAlgorithm = "aes"
loo_Crypt.CipherMode = "cbc"
loo_Crypt.KeyLength = 128
loo_Crypt.SetEncodedKey("000102030405060708090A0B0C0D0E0F","hex")
loo_Crypt.SetEncodedIV("000102030405060708090A0B0C0D0E0F","hex")
loo_Crypt.EncodingMode = "base64"

loo_SsLogin = create oleobject
// Use "Chilkat_9_5_0.SecureString" for versions of Chilkat < 10.0.0
li_rc = loo_SsLogin.ConnectToNewObject("Chilkat.SecureString")

loo_SsPassword = create oleobject
// Use "Chilkat_9_5_0.SecureString" for versions of Chilkat < 10.0.0
li_rc = loo_SsPassword.ConnectToNewObject("Chilkat.SecureString")

// Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
// a randomly generated session key.)
loo_Crypt.DecryptSecureENC(loo_Json.StringOf("ssh_login"),loo_SsLogin)
loo_Crypt.DecryptSecureENC(loo_Json.StringOf("ssh_password"),loo_SsPassword)

loo_Tunnel = create oleobject
// Use "Chilkat_9_5_0.SshTunnel" for versions of Chilkat < 10.0.0
li_rc = loo_Tunnel.ConnectToNewObject("Chilkat.SshTunnel")

li_Success = loo_Tunnel.Connect("MY-SSH-SERVER-DOMAIN-OR-IP",22)
if li_Success <> 1 then
    Write-Debug loo_Tunnel.LastErrorText
    destroy loo_Json
    destroy loo_Crypt
    destroy loo_SsLogin
    destroy loo_SsPassword
    destroy loo_Tunnel
    return
end if

// Authenticate using secure strings
li_Success = loo_Tunnel.AuthenticateSecPw(loo_SsLogin,loo_SsPassword)
if li_Success <> 1 then
    Write-Debug loo_Tunnel.LastErrorText
    destroy loo_Json
    destroy loo_Crypt
    destroy loo_SsLogin
    destroy loo_SsPassword
    destroy loo_Tunnel
    return
end if

Write-Debug "SSH Tunnel Authentication successful."

// ...

loo_Tunnel.CloseTunnel(1)


destroy loo_Json
destroy loo_Crypt
destroy loo_SsLogin
destroy loo_SsPassword
destroy loo_Tunnel