Delphi DLL

SSH Authenticate with a Password

Demonstrates the Chilkat Ssh.AuthenticatePw method, which authenticates a connected SSH session with a login name and password. The first argument is the login and the second is the password. Call Connect first.

Background: Password authentication is the simplest SSH method, but the password is a secret and should never be a hard-coded literal — obtain it from an interactive prompt, an environment variable, or a secrets vault. On failure, inspect AuthFailReason to distinguish a bad password from a not-connected or already-authenticated state. Public-key authentication is generally preferred for automated jobs.

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var
success: Boolean;
ssh: HCkSsh;
sshPort: Integer;
password: PWideChar;

begin
success := False;

//  Demonstrates the Ssh.AuthenticatePw method, which authenticates a connected SSH session with
//  a login name and password.  The 1st argument is the login and the 2nd is the password.

ssh := CkSsh_Create();

//  Connect to the SSH server.  Port 22 is the usual SSH port.
sshPort := 22;
success := CkSsh_Connect(ssh,'ssh.example.com',sshPort);
if (success = False) then
  begin
    Memo1.Lines.Add(CkSsh__lastErrorText(ssh));
    Exit;
  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.
password := 'mySshPassword';

success := CkSsh_AuthenticatePw(ssh,'mySshLogin',password);
if (success = False) then
  begin
    Memo1.Lines.Add(CkSsh__lastErrorText(ssh));
    Exit;
  end;
Memo1.Lines.Add('Authenticated.');

CkSsh_Disconnect(ssh);

CkSsh_Dispose(ssh);