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Mail::DKIM::Algorithm::Base(3)       User Contributed Perl Documentation      Mail::DKIM::Algorithm::Base(3)



NAME
       Mail::DKIM::Algorithm::Base - base class for DKIM "algorithms"

SYNOPSIS
         my $algorithm = new Mail::DKIM::Algorithm::rsa_sha1(
                             Signature => $dkim_signature
                         );

         # add headers
         $algorithm->add_header("Subject: this is the subject\015\012");
         $algorithm->finish_header;

         # add body
         $algorithm->add_body("This is the body.\015\012");
         $algorithm->add_body("Another line of the body.\015\012");
         $algorithm->finish_body;

         # now sign or verify...
         # TODO...

CONSTRUCTOR
       You should not create an object of this class directly. Instead, use one of the DKIM algorithm
       implementation classes, such as rsa_sha1:

         my $algorithm = new Mail::DKIM::Algorithm::rsa_sha1(
                             Signature => $dkim_signature
                         );

METHODS
   add_body() - feeds part of the body into the algorithm/canonicalization
         $algorithm->add_body("This is the body.\015\012");
         $algorithm->add_body("Another line of the body.\015\012");

       The body should be fed one "line" at a time.

   add_header() - feeds a header field into the algorithm/canonicalization
         $algorithm->add_header("Subject: this is the subject\015\012");

       The header must start with the header field name and continue through any folded lines (including the
       embedded <CRLF> sequences). It terminates with the <CRLF> at the end of the header field.

   finish_body() - signals the end of the message body
         $algorithm->finish_body

       Call this method when all lines from the body have been submitted.  After calling this method, use
       sign() or verify() to get the results from the algorithm.

   finish_header() - signals the end of the header field block
         $algorithm->finish_header;

       Call this method when all the headers have been submitted.

   sign() - generates a signature using a private key
         $base64 = $algorithm->sign($private_key);

   signature() - get/set the signature worked on by this algorithm
         my $old_signature = $algorithm->signature;
         $algorithm->signature($new_signature);

   verify() - verifies a signature
         $result = $algorithm->verify();

       Must be called after finish_body().

       The result is a true/false value: true indicates the signature data is valid, false indicates it is
       invalid.

       For an invalid signature, details may be obtained from $algorithm->{verification_details} or $@.

SEE ALSO
       Mail::DKIM

AUTHOR
       Jason Long, <jlong@messiah.edu>

COPYRIGHT AND LICENSE
       Copyright (C) 2005-2007 by Messiah College

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl
       itself, either Perl version 5.8.6 or, at your option, any later version of Perl 5 you may have
       available.



perl v5.16.2                                     2010-11-14                   Mail::DKIM::Algorithm::Base(3)