From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Daiki Ueno Newsgroups: gmane.emacs.devel Subject: Re: GPGME Date: Thu, 30 Jun 2011 03:41:52 +0900 Message-ID: <87y60kiiof.fsf-ueno@unixuser.org> References: <87pqmxvfoh.fsf@lifelogs.com> <87sjrttwh8.fsf@lifelogs.com> <87wrh4b9h9.fsf@lifelogs.com> <87aae05l8p.fsf-ueno@unixuser.org> <87k4d4b66p.fsf@lifelogs.com> <87wrh0fh4g.fsf_-_@lifelogs.com> <87y60ncma8.fsf_-_@lifelogs.com> <87vcvrne02.fsf-ueno@unixuser.org> <87r56ep3sm.fsf@lifelogs.com> <874o39n171.fsf-ueno@unixuser.org> <87iprosxlk.fsf@lifelogs.com> <87ei2ckcdl.fsf-ueno@unixuser.org> <87ipropn94.fsf@lifelogs.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dough.gmane.org 1309375743 4386 80.91.229.12 (29 Jun 2011 19:29:03 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 29 Jun 2011 19:29:03 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Jun 29 21:28:59 2011 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Qc0RX-0008Dj-GX for ged-emacs-devel@m.gmane.org; Wed, 29 Jun 2011 21:28:59 +0200 Original-Received: from localhost ([::1]:51821 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qc0RW-000381-4s for ged-emacs-devel@m.gmane.org; Wed, 29 Jun 2011 15:28:58 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:48673) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qbzi4-0006e9-Lv for emacs-devel@gnu.org; Wed, 29 Jun 2011 14:42:01 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Qbzi2-0007bE-PG for emacs-devel@gnu.org; Wed, 29 Jun 2011 14:42:00 -0400 Original-Received: from ivory4.scn-net.ne.jp ([219.117.176.192]:60049) by eggs.gnu.org with smtp (Exim 4.71) (envelope-from ) id 1Qbzi1-0007ax-Vx for emacs-devel@gnu.org; Wed, 29 Jun 2011 14:41:58 -0400 Original-Received: from ([192.168.0.187]) (envelope sender: ) by ivory4.scn-net.ne.jp with Active!Hunter esmtp server; Thu, 30 Jun 2011 03:41:53 +0900 Original-Received: Received: from well-done.deisui.org (g187018.scn-net.ne.jp [202.83.187.18]) (authenticated) by blue17.scn-net.ne.jp (unknown) with ESMTP id p5TIfrro007470 for ; Thu, 30 Jun 2011 03:41:53 +0900 In-Reply-To: <87ipropn94.fsf@lifelogs.com> (Ted Zlatanov's message of "Wed, 29 Jun 2011 12:21:11 -0500") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) X-Received-From: 219.117.176.192 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:141184 Archived-At: Ted Zlatanov writes: > The standard OpenPGP format described in the 90-page RFC is extremely > flexible and powerful (it's packet based and has more options than GNU > ls); I think it would be a lot of work to implement it even for just a > few symmetric ciphers. It is not that complex - for symmetric encryption, only limited part is used. Try: $ gpg --list-packets aaa.txt.gpg :symkey enc packet: version 4, cipher 3, s2k 3, hash 2 salt 071379daac57c0c1, count 65536 (96) gpg: CAST5 encrypted data :encrypted data packet: length: 32 gpg: encrypted with 1 passphrase :compressed packet: algo=1 :literal data packet: mode b (62), created 1309372527, name="aaa.txt", raw data: 4 bytes gpg: WARNING: message was not integrity protected So there is actually four packets. Also, you could drop the support of compression. Regards, -- Daiki Ueno