03-16-2006
File encryption/Key encryption ????
My dilemma,
I need to send, deemed confidential, information via e-mail (SMTP). This information is sitting as a file on AIX. Typically I can send this data as a e-mail attachment via what we term a "mail filter" using telnet. I now would like to somehow encrypt the data and send it to a e-mail address external to the company via the internet to a recipient that is probably using Microsoft Outlook. Obviously I what him to somehow decrypt it to be able to use/view the attachment. I have looked at PKI, but the concept is not totally clear to me, as where is the public and private keys held, what key is exchanged and when, how is this done in the context of sending e-mail using SMTP via telnet (is the key an attachment) how does the recipient know this is a key encrypted file and what key to use, how does this relate to the key in his possession, does he need extra software (example). I was looking at tar, compress, gzip, pax and other standard UNIX commands to achieve a password protected file, but have had no luck thus far. Please can you shed some light on at leased some of my question.
Regards
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LEARN ABOUT DEBIAN
ledgersmb::mailer
LedgerSMB::Mailer(3pm) User Contributed Perl Documentation LedgerSMB::Mailer(3pm)
NAME
LedgerSMB::Mailer - Mail output for LedgerSMB
SYNOPSIS
COPYRIGHT
#====================================================================
# LedgerSMB
# Small Medium Business Accounting software
# http://www.ledgersmb.org/
#
# Copyright (C) 2006
# This work contains copyrighted information from a number of sources
# all used with permission.
#
# This file contains source code included with or based on SQL-Ledger
# which # is Copyright Dieter Simader and DWS Systems Inc. 2000-2005
# and licensed under the GNU General Public License version 2 or, at
# your option, any later version. For a full list including contact
# information of contributors, maintainers, and copyright holders,
# see the CONTRIBUTORS file.
#
# Original Copyright Notice from SQL-Ledger 2.6.17 (before the fork):
# Copyright (C) 2002
#
# Author: DWS Systems Inc.
# Web: http://www.sql-ledger.org
#
# Contributors:
#
# Original Author and copyright holder:
# Dieter Simader dsmimader@sql-ledger.com
#====================================================================
METHODS
LedgerSMB::Mailer->new(...)
Create a new Mailer object. If any arguments are passed in, a message that uses them will be automatically prepared but not sent.
$mail->prepare_message(to => $to, from => $from, ...)
Prepares and encodes base message for sending or adding attachments.
Arguments
to, from, cc, bcc
Address fields for the email.
subject
The subject for the email.
message
The message body for the email.
contenttype
The conttent type for the body of the message, not for any attachments.
notify
Sets the Disposition-Notification-To header (read receipt request) for the message. This header will only be added if a from address
is set.
$mail->attach(data => $data, file => $file, filename => $name, strip => $strip)
Add an attachment to the prepared message. If $data is specified, use the value of that variable as the attachment value, otherwise attach
the file given by $file. If both a file and data are given, the data is attached. filename must be given and is used to name the
attachment.
$strip is an optional string to remove from the filename send with the attachment.
$mail->send
Sends a prepared message using the method configured in ledgersmb.conf.
perl v5.14.2 2012-03-26 LedgerSMB::Mailer(3pm)