1NTLM(3)               User Contributed Perl Documentation              NTLM(3)
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NAME

6       Authen::NTLM - An NTLM authentication module
7

SYNOPSIS

9           use Mail::IMAPClient;
10           use Authen::NTLM;
11           my $imap = Mail::IMAPClient->new(Server=>'imaphost');
12           ntlm_user($username);
13           ntlm_password($password);
14           $imap->authenticate("NTLM", Authen::NTLM::ntlm);
15           :
16           $imap->logout;
17           ntlm_reset;
18           :
19
20       or
21
22           ntlmv2(1);
23           ntlm_user($username);
24           ntlm_host($host);
25           ntlm_password($password);
26           :
27
28       or
29
30           my $ntlm = Authen::NTLM-> new(
31               host     => $host,
32               user     => $username,
33               domain   => $domain,
34               password => $password,
35               version  => 1,
36           );
37           $ntlm-> challenge;
38           :
39           $ntlm-> challenge($challenge);
40

DESCRIPTION

42           This module provides methods to use NTLM authentication.  It can
43           be used as an authenticate method with the Mail::IMAPClient module
44           to perform the challenge/response mechanism for NTLM connections
45           or it can be used on its own for NTLM authentication with other
46           protocols (eg. HTTP).
47
48           The implementation is a direct port of the code from F<fetchmail>
49           which, itself, has based its NTLM implementation on F<samba>.  As
50           such, this code is not especially efficient, however it will still
51           take a fraction of a second to negotiate a login on a PII which is
52           likely to be good enough for most situations.
53
54   FUNCTIONS
55       ntlm_domain()
56               Set the domain to use in the NTLM authentication messages.
57               Returns the new domain.  Without an argument, this function
58               returns the current domain entry.
59
60       ntlm_user()
61               Set the username to use in the NTLM authentication messages.
62               Returns the new username.  Without an argument, this function
63               returns the current username entry.
64
65       ntlm_password()
66               Set the password to use in the NTLM authentication messages.
67               Returns the new password.  Without an argument, this function
68               returns the current password entry.
69
70       ntlm_reset()
71               Resets the NTLM challenge/response state machine so that the next
72               call to C<ntlm()> will produce an initial connect message.
73
74       ntlm()
75               Generate a reply to a challenge.  The NTLM protocol involves an
76               initial empty challenge from the server requiring a message
77               response containing the username and domain (which may be empty).
78               The first call to C<ntlm()> generates this first message ignoring
79               any arguments.
80
81               The second time it is called, it is assumed that the argument is
82               the challenge string sent from the server.  This will contain 8
83               bytes of data which are used in the DES functions to generate the
84               response authentication strings.  The result of the call is the
85               final authentication string.
86
87               If C<ntlm_reset()> is called, then the next call to C<ntlm()> will
88               start the process again allowing multiple authentications within
89               an application.
90
91       ntlmv2()
92               Use NTLM v2 authentication.
93
94   OBJECT API
95       new %options
96           Creates an object that accepts the following options: "user",
97           "host", "domain", "password", "version".
98
99       challenge [$challenge]
100           If $challenge is not supplied, first-stage challenge string is
101           generated.  Otherwise, the third-stage challenge is generated,
102           where $challenge is assumed to be extracted from the second stage
103           of NTLM exchange. The result of the call is the final
104           authentication string.
105

AUTHOR

107           David (Buzz) Bussenschutt <davidbuzz@gmail.com> - current maintainer
108           Dmitry Karasik <dmitry@karasik.eu.org> - nice ntlmv2 patch, OO extensions.
109           Andrew Hobson <ahobson@infloop.com> - initial ntlmv2 code
110           Mark Bush <Mark.Bush@bushnet.demon.co.uk> - perl port
111           Eric S. Raymond - author of fetchmail
112           Andrew Tridgell and Jeremy Allison for SMB/Netbios code
113

SEE ALSO

115       perl, Mail::IMAPClient, LWP::Authen::Ntlm
116

HISTORY

118           1.09 - fix CPAN ticket # 70703
119           1.08 - fix CPAN ticket # 39925
120           1.07 - not publicly released
121           1.06 - relicense as GPL+ or Artistic
122           1.05 - add OO interface by Dmitry Karasik
123           1.04 - implementation of NTLMv2 by Andrew Hobson/Dmitry Karasik
124           1.03 - fixes long-standing 1 line bug L<http://rt.cpan.org/Public/Bug/Display.html?id=9521> - released by David Bussenschutt 9th Aug 2007
125           1.02 - released by Mark Bush 29th Oct 2001
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129perl v5.26.3                      2011-09-09                           NTLM(3)
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