notedb::dumper(3pm) [debian man page]

NOTEDB::dumper(3pm)					User Contributed Perl Documentation				       NOTEDB::dumper(3pm)

NAME

       NOTEDB::text - module lib for accessing a notedb from perl

SYNOPSIS

	       # include the module
	       use NOTEDB;

	       # create a new NOTEDB object
	       $db = new NOTEDB("text", "/home/tom/.notedb", 4096, 24);

	       # decide to use encryption
	       # $key is the cipher to use for encryption
	       # $method must be either Crypt::IDEA or Crypt::DES
	       # you need Crypt::CBC, Crypt::IDEA and Crypt::DES to have installed.
	       $db->use_crypt($key,$method);

	       # do not use encryption
	       # this is the default
	       $db->no_crypt;

	       # get a single note
	       ($note, $date) = $db->get_single(1);

	       # search for a certain note
	       %matching_notes = $db->get_search("somewhat");
	       # format of returned hash:
	       #$matching_notes{$numberofnote}->{'note' => 'something', 'date' => '23.12.2000 10:33:02'}

	       # get all existing notes
	       %all_notes = $db->get_all();
	       # format of returnes hash like the one from get_search above

	       # get the next noteid available
	       $next_num = $db->get_nextnum();

	       # modify a certain note
	       $db->set_edit(1, "any text", "23.12.2000 10:33:02");

	       # create a new note
	       $db->set_new(5, "any new text", "23.12.2000 10:33:02");

	       # delete a certain note
	       $db->set_del(5);

	       # turn on encryption. CryptMethod must be IDEA, DES or BLOWFISH
	       $db->use_crypt("passphrase", "CryptMethod");

	       # turn off encryption. This is the default.
	       $db->no_crypt();

DESCRIPTION

       You can use this module for accessing a note database. This backend uses a text file for storage and Storable for accessing the file.

       Currently, NOTEDB module is only used by note itself. But feel free to use it within your own project! Perhaps someone want to implement a
       webinterface to note...

USAGE

       please see the section SYNOPSIS, it says it all.

AUTHOR

       Thomas Linden <tom@daemon.de>.

perl v5.10.1							    2009-07-19						       NOTEDB::dumper(3pm)

DES(3)							User Contributed Perl Documentation						    DES(3)

NAME

       Crypt::DES - Perl DES encryption module

SYNOPSIS

	   use Crypt::DES;

DESCRIPTION

       The module implements the Crypt::CBC interface, which has the following methods

       blocksize =item keysize =item encrypt =item decrypt

FUNCTIONS

       blocksize
	   Returns the size (in bytes) of the block cipher.

       keysize
	   Returns the size (in bytes) of the key. Optimal size is 8 bytes.

       new
		   my $cipher = new Crypt::DES $key;

	   This creates a new Crypt::DES BlockCipher object, using $key, where $key is a key of "keysize()" bytes.

       encrypt
		   my $cipher = new Crypt::DES $key;
		   my $ciphertext = $cipher->encrypt($plaintext);

	   This function encrypts $plaintext and returns the $ciphertext where $plaintext and $ciphertext should be of "blocksize()" bytes.

       decrypt
		   my $cipher = new Crypt::DES $key;
		   my $plaintext = $cipher->decrypt($ciphertext);

	   This function decrypts $ciphertext and returns the $plaintext where $plaintext and $ciphertext should be of "blocksize()" bytes.

EXAMPLE

	       my $key = pack("H16", "0123456789ABCDEF");
	       my $cipher = new Crypt::DES $key;
	       my $ciphertext = $cipher->encrypt("plaintex");  # NB - 8 bytes
	       print unpack("H16", $ciphertext), "
";

NOTES

       Do note that DES only uses 8 byte keys and only works on 8 byte data blocks.  If you're intending to encrypt larger blocks or entire files,
       please use Crypt::CBC in conjunction with this module.  See the Crypt::CBC documentation for proper syntax and use.

       Also note that the DES algorithm is, by today's standard, weak encryption.  Crypt::Blowfish is highly recommended if you're interested in
       using strong encryption and a faster algorithm.

SEE ALSO

       Crypt::Blowfish Crypt::IDEA

       Bruce Schneier, Applied Cryptography, 1995, Second Edition, published by John Wiley & Sons, Inc.

COPYRIGHT

       The implementation of the DES algorithm was developed by, and is copyright of, Eric Young (eay@mincom.oz.au).  Other parts of the perl
       extension and module are copyright of Systemics Ltd ( http://www.systemics.com/ ).  Cross-platform work and packaging for single algorithm
       distribution is copyright of W3Works, LLC.

MAINTAINER

       This single-algorithm package and cross-platform code is maintained by Dave Paris <amused@pobox.com>.

perl v5.16.3							    2005-12-08								    DES(3)