Authen::SASL::Perl::CRAM_MD5 - CRAM MD5 Authentication class

Authen-SASL documentation Contained in the Authen-SASL distribution.

Index

Code Index:

NAME

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Authen::SASL::Perl::CRAM_MD5 - CRAM MD5 Authentication class

SYNOPSIS

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  use Authen::SASL qw(Perl);

  $sasl = Authen::SASL->new(
    mechanism => 'CRAM-MD5',
    callback  => {
      user => $user,
      pass => $pass
    },
  );

DESCRIPTION

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This method implements the client part of the CRAM-MD5 SASL algorithm, as described in RFC 2195 resp. in IETF Draft draft-ietf-sasl-crammd5-XX.txt.

CALLBACK

The callbacks used are:

user

The username to be used for authentication

pass

The user's password to be used for authentication

SEE ALSO

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Authen::SASL, Authen::SASL::Perl

AUTHORS

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Software written by Graham Barr <gbarr@pobox.com>, documentation written by Peter Marschall <peter@adpm.de>.

Please report any bugs, or post any suggestions, to the perl-ldap mailing list <perl-ldap@perl.org>

COPYRIGHT

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Copyright (c) 2002-2004 Graham Barr. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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

Authen-SASL documentation Contained in the Authen-SASL distribution. 
# Copyright (c) 2002 Graham Barr <gbarr@pobox.com>. All rights reserved.
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.

package Authen::SASL::Perl::CRAM_MD5;

use strict;
use vars qw($VERSION @ISA);
use Digest::HMAC_MD5 qw(hmac_md5_hex);

$VERSION = "2.14";
@ISA	 = qw(Authen::SASL::Perl);

my %secflags = (
	noplaintext => 1,
	noanonymous => 1,
);

sub _order { 2 }
sub _secflags {
  shift;
  scalar grep { $secflags{$_} } @_;
}

sub mechanism { 'CRAM-MD5' }

sub client_start {
  '';
}

sub client_step {
  my ($self, $string) = @_;
  my ($user, $pass) = map {
    my $v = $self->_call($_);
    defined($v) ? $v : ''
  } qw(user pass);

  $user . " " . hmac_md5_hex($string,$pass);
}

1;

__END__