Mail::DKIM::PrivateKey(3) User Contributed Perl Documentation NAME Mail::DKIM::PrivateKey - a private key loaded in memory for DKIM signing VERSION version 1.20230911 SYNOPSIS my $key1 = Mail::DKIM::PrivateKey->load( File => '/path/to/private.key'); my $key2 = Mail::DKIM::PrivateKey->load( Data => $base64); # use the loaded key in a DKIM signing object my $dkim = Mail::DKIM::Signer->new( Key => $key2, ); CONSTRUCTOR load() - loads a private key into memory my $key1 = Mail::DKIM::PrivateKey->load( File => '/path/to/private.key'); Loads the Base64-encoded key from the specified file. my $key2 = Mail::DKIM::PrivateKey->load(Data => $base64); Loads the Base64-encoded key from a string already in memory. my $key3 = Mail::DKIM::PrivateKey->load(Cork => $openssl_object); Creates a Mail::DKIM::PrivateKey wrapper object for the given OpenSSL key object. The key object should be of type Crypt::OpenSSL::RSA. METHODS cork() - access the underlying OpenSSL key object $openssl_object = $key->cork; The returned object is of type Crypt::OpenSSL::RSA. sign_digest() Cryptographically sign the given message digest. $key->sign_digest('SHA-1', sha1('my message text')); The first parameter is the name of the digest: one of "SHA-1", "SHA-256". The second parameter is the message digest as a binary string. The result should be the signed digest as a binary string. 1; AUTHORS o Jason Long o Marc Bradshaw o Bron Gondwana (ARC) THANKS Work on ensuring that this module passes the ARC test suite was generously sponsored by Valimail (https://www.valimail.com/) COPYRIGHT AND LICENSE o Copyright (C) 2013 by Messiah College o Copyright (C) 2010 by Jason Long o Copyright (C) 2017 by Standcore LLC o Copyright (C) 2020 by FastMail Pty Ltd 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 v5.38.0 2023-10-09 Mail::DKIM::PrivateKey(3)