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From "Goldstein Lyor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SSHD-473) PasswordAuthentifikation
Date Mon, 01 Jun 2015 11:24:17 GMT

    [ https://issues.apache.org/jira/browse/SSHD-473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14567180#comment-14567180
] 

Goldstein Lyor commented on SSHD-473:
-------------------------------------

Hi Jochen,

{quote}At this morning I've had only 'session.auth(); ' in my code. In that situation I was
able to get authenticated with the second authentication run, even when passing a wrong password.{quote}
You weren't really authenticating since you did not call _verify()_ - please do so.

{quote}Do I need, in case of PasswordAuthentikation (at the server mashine??){quote}
Yes, you need to set it up as follows:
{code:java}
sshd = SshServer.setUpDefaultServer();
sshd.setPasswordAuthenticator(...something that implements the PasswordAuthenticator interface...);
{code}
How the _PasswordAuthenticator_ decides whether to accept or reject the password is up to
you - there are some default implementations - e.g., _JaasPasswordAuthenticator_, but you
*must* provide an implementation for the server if you want to allow password authentication.

{quote}I've not tested yet the KeyPair-Authentification{quote}
If you do, then you must also provide a _PublickeyAuthenticator_ implementation:
{code:java}
sshd = SshServer.setUpDefaultServer();
sshd.setPublickeyAuthenticator(...something that implements the PublickeyAuthenticator interface...);
{code}
Again how to decide whether to accept a key or not is up to *your code*.



> PasswordAuthentifikation
> ------------------------
>
>                 Key: SSHD-473
>                 URL: https://issues.apache.org/jira/browse/SSHD-473
>             Project: MINA SSHD
>          Issue Type: Bug
>    Affects Versions: 0.14.0
>         Environment: Windows 7, Java 8, Eclipse JUNO
>            Reporter: Jochen Seliger
>            Priority: Critical
>
> I run the sshd and the ssh client both on the windos mashine.
> The sshd I start on port 8000 and with password authentificator ans an own atthenicator
class, which shall shoe a messagebox when envoced.
> The client I start aftercreating it as SshClient.setUpDefaultClient(); without stting
any factury with the statement ClientSession session = client.connect("Jochen","192.168.100.13",8000).await().getSession();
(Jochen is an existing user on the mashine).
> But till shellChannel I can proceed only when setting after session creation session.addPasswordIdentity("Jochen");
(it is tha same user as provided at session creation)
> There is no functionality to set the password.
> The method authPassword is depreciated.
> 1. My first question: How to proceed th use PasswordAuthentification?
> As stated I can proceesd til ssh-Shell, but the server is logging at a first run an autentification
failure and at a second run authentification success:
> Mai 22, 2015 12:14:21 PM org.apache.sshd.client.session.ClientSessionImpl readIdentification
> INFORMATION: Server version string: SSH-2.0-SSHD-CORE-0.14.0
> Mai 22, 2015 12:14:22 PM org.apache.sshd.client.keyverifier.AcceptAllServerKeyVerifier
verifyServerKey
> WARNUNG: Server at /192.168.100.13:8000 presented unverified DSA key: e4:76:f3:c2:15:64:7f:e4:5f:b7:86:35:a5:3e:85:35
> Mai 22, 2015 12:14:22 PM org.apache.sshd.common.session.AbstractSession doHandleMessage
> INFORMATION: Dequeing pending packets
> Mai 22, 2015 12:14:22 PM org.apache.sshd.client.session.ClientUserAuthServiceNew processUserAuth
> INFORMATION: Received SSH_MSG_USERAUTH_FAILURE
> Mai 22, 2015 12:14:22 PM org.apache.sshd.client.auth.UserAuthKeyboardInteractive process
> INFORMATION: Received Password authentication  en-US
> Mai 22, 2015 12:14:22 PM org.apache.sshd.client.session.ClientUserAuthServiceNew processUserAuth
> INFORMATION: Received SSH_MSG_USERAUTH_SUCCESS
> ShellChannell opened
> Microsoft Windows [Version 6.0.6001]
> Copyright (c) 2006 Microsoft Corporation. Alle Rechte vorbehalten.
> C:\Users\Jochen\workspace\USF_SSH_WS>
> allthoug I did not provide an password.
> 2. Why thes two runs are processed?
> 3. Why the first run fails and the second one succedes?
> 4. How to proceede to get a functioning password and keypair authentication?
> Regards
> Jochen Seliger



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