SSH Authenticate with a SecureString Password and Private Key

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Demonstrates the Chilkat Ssh.AuthenticateSecPwPk method, which performs the same combined password/private-key authentication as AuthenticatePwPk but receives the username and password as SecureString objects. The third argument is the SshKey private key.

Note: The private-key path is relative to the application's current working directory. Supply the path to your own key file.

local chilkat = require("chilkat")

-- Demonstrates the Ssh.AuthenticateSecPwPk method, which authenticates using SecureString login
-- and password objects together with a private key.  The 1st argument is the username, the 2nd
-- is the password, and the 3rd is an SshKey private key.

local ssh = chilkat.Ssh.new()

-- Connect to the SSH server.  Port 22 is the usual SSH port.
local sshPort = 22
local success = ssh:connect("ssh.example.com", sshPort)
if not success then
    print(ssh.last_error_text)
    return
end

-- Normally you would not hard-code the password in source.  You should instead obtain it
-- from an interactive prompt, environment variable, or a secrets vault.
local password = "mySshPassword"

-- Load the SSH private key.  LoadText reads the file's text, which is then imported.
local privKey = chilkat.SshKey.new()
local keyStr = privKey:load_text("qa_data/id_rsa")
if not privKey.last_method_success then
    print(privKey.last_error_text)
    return
end

success = privKey:from_open_ssh_private_key(keyStr)
if not success then
    print(privKey.last_error_text)
    return
end

-- Place the login and password into SecureString objects.
local secureLogin = chilkat.SecureString.new()
secureLogin:append("mySshLogin")
local securePassword = chilkat.SecureString.new()
securePassword:append(password)

success = ssh:authenticate_sec_pw_pk(secureLogin, securePassword, privKey)
if not success then
    print(ssh.last_error_text)
    return
end

print("Authenticated.")

ssh:disconnect()