1Authen::SASL::Perl(3) User Contributed Perl DocumentationAuthen::SASL::Perl(3)
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NAME

6       Authen::SASL::Perl -- Perl implementation of the SASL Authentication
7       framework
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SYNOPSIS

10        use Authen::SASL qw(Perl);
11
12        $sasl = Authen::SASL->new(
13          mechanism => 'CRAM-MD5 PLAIN ANONYMOUS',
14          callback => {
15            user => $user,
16            pass => \&fetch_password
17          }
18        );
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DESCRIPTION

21       Authen::SASL::Perl is the pure Perl implementation of SASL mechanisms
22       in the Authen::SASL framework.
23
24       At the time of this writing it provides the client part implementation
25       for the following SASL mechanisms:
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27       ANONYMOUS
28           The Anonymous SASL Mechanism as defined in RFC 2245 resp.  in IETF
29           Draft draft-ietf-sasl-anon-03.txt from February 2004 provides a
30           method to anonymously access internet services.
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32           Since it does no authentication it does not need to send any
33           confidential information such as passwords in plain text over the
34           network.
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36       CRAM-MD5
37           The CRAM-MD5 SASL Mechanism as defined in RFC2195 resp.  in IETF
38           Draft draft-ietf-sasl-crammd5-XX.txt offers a simple challenge-
39           response authentication mechanism.
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41           Since it is a challenge-response authentication mechanism no
42           passwords are transferred in clear-text over the wire.
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44           Due to the simplicity of the protocol CRAM-MD5 is susceptible to
45           replay and dictionary attacks, so DIGEST-MD5 should be used in
46           preferrence.
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48       DIGEST-MD5
49           The DIGEST-MD5 SASL Mechanism as defined in RFC 2831 resp.  in IETF
50           Draft draft-ietf-sasl-rfc2831bis-XX.txt offers the HTTP Digest
51           Access Authentication as SASL mechanism.
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53           Like CRAM-MD5 it is a challenge-response authentication method that
54           does not send plain text passwords over the network.
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56           Compared to CRAM-MD5, DIGEST-MD5 prevents chosen plaintext attacks,
57           and permits the use of third party authentication servers, so that
58           it is recommended to use DIGEST-MD5 instead of CRAM-MD5 when
59           possible.
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61       EXTERNAL
62           The EXTERNAL SASL mechanism as defined in RFC 2222 allows the use
63           of external authentication systems as SASL mechanisms.
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65       GSSAPI
66           The GSSAPI SASL mechanism as defined in RFC 2222 resp. IETF Draft
67           draft-ietf-sasl-gssapi-XX.txt allows using the Generic Security
68           Service Application Program Interface [GSSAPI] KERBEROS V5 as as
69           SASL mechanism.
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71           Although GSSAPI is a general mechanism for authentication it is
72           almost exlusively used for Kerberos 5.
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74       LOGIN
75           The LOGIN SASL Mechanism as defined in IETF Draft
76           draft-murchison-sasl-login-XX.txt allows  the combination of
77           username and clear-text password to be used in a SASL mechanism.
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79           It does does not provide a security layer and sends the credentials
80           in clear over the wire.  Thus this mechanism should not be used
81           without adequate security protection.
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83       PLAIN
84           The Plain SASL Mechanism as defined in RFC 2595 resp. IETF Draft
85           draft-ietf-sasl-plain-XX.txt is another SASL mechanism that allows
86           username and clear-text password combinations in SASL environments.
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88           Like LOGIN it sends the credentials in clear over the network and
89           should not be used without sufficient security protection.
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91       As for server support, only PLAIN, LOGIN and DIGEST-MD5 are supported
92       at the time of this writing.
93
94       "server_new" OPTIONS is a hashref that is only relevant for DIGEST-MD5
95       for now and it supports the following options:
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97       - no_integrity
98       - no_confidentiality
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100       which configures how the security layers are negotiated with the client
101       (or rather imposed to the client).
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SEE ALSO

104       Authen::SASL, Authen::SASL::Perl::ANONYMOUS,
105       Authen::SASL::Perl::CRAM_MD5, Authen::SASL::Perl::DIGEST_MD5,
106       Authen::SASL::Perl::EXTERNAL, Authen::SASL::Perl::GSSAPI,
107       Authen::SASL::Perl::LOGIN, Authen::SASL::Perl::PLAIN
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AUTHOR

110       Peter Marschall <peter@adpm.de>
111
112       Please report any bugs, or post any suggestions, to the perl-ldap
113       mailing list <perl-ldap@perl.org>
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116       Copyright (c) 2004-2006 Peter Marschall.  All rights reserved. This
117       document is distributed, and may be redistributed, under the same terms
118       as Perl itself.
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122perl v5.28.0                      2010-03-11             Authen::SASL::Perl(3)
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