From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-3.4 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H2 autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 21185 invoked from network); 9 Dec 2022 18:26:43 -0000 Received: from lists.gnu.org (209.51.188.17) by inbox.vuxu.org with ESMTPUTF8; 9 Dec 2022 18:26:43 -0000 Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p3i4p-0007Yh-RV; Fri, 09 Dec 2022 13:26:27 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p3i4d-0007Xt-4W for info-gnus-english@gnu.org; Fri, 09 Dec 2022 13:26:17 -0500 Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p3i4W-0000xD-Aj for info-gnus-english@gnu.org; Fri, 09 Dec 2022 13:26:14 -0500 Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1p3i4S-00036P-FP for info-gnus-english@gnu.org; Fri, 09 Dec 2022 19:26:04 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: info-gnus-english@gnu.org From: =?utf-8?Q?Adam_Sj=C3=B8gren?= Subject: Re: recipient does not have pgp key? can i still send an encrypted email? Date: Fri, 09 Dec 2022 19:25:57 +0100 Organization: koldfront - analysis & revolution, Copenhagen, Denmark Message-ID: <87a63wv3gq.fsf@tullinup.koldfront.dk> References: <47bd4cafbb104ee215a3eb197cbdd598@disroot.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit User-Agent: Gnus/5.13 (Gnus v5.13) Cancel-Lock: sha1:k2rIS4tFDPrLaXgttkpVmnU72ng= OpenPGP: id=476630590A231909B0A0961A49D0746121BDE416; url=https://asjo.koldfront.dk/gpg.asc X-Now-Playing: Don't Say I'm So Evil, Big Lupu (22 Pistepirkko) X-Face: )qY&CseJ?.:=8F#^~GcSA?F=9eu'{KAFfL1C3/A&:nE?PW\i65"ba0NS)97, Q(^@xk}n4Ou rPuR#V8I(J_@~H($[ym:`K_+]*kjvW>xH5jbgLBVFGXY:(#4P>zVBklLbdL&XxL\M)%T}3S/IS9lMJ ^St'=VZBR List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: info-gnus-english-bounces+ml=inbox.vuxu.org@gnu.org Sender: info-gnus-english-bounces+ml=inbox.vuxu.org@gnu.org vani writes: > it seems we need recipient pgp key for sending > encrypted email. if there is no pgp key, can i > still encrypted email? No, not with public-key cryptography¹, which is what is usually used. You need the recipients public key to be able to encrypt the email to them. If you and the recipient share a secret (eg. a password), you could use symmetric encryption², but you have to share the secret in some other way first, so it's rarely a solution. Best regards, Adam ¹ https://en.wikipedia.org/wiki/Public-key_cryptography ² https://en.wikipedia.org/wiki/Symmetric-key_algorithm -- "(Phew, it's hard to explain with my poor Adam Sjøgren English.)" asjo@koldfront.dk