From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: mail.toke.dk; spf=pass (mailfrom) smtp.mailfrom=irif.fr (client-ip=2001:660:3301:8000::1:2; helo=korolev.univ-paris7.fr; envelope-from=jch@irif.fr; receiver=) Authentication-Results: mail.toke.dk; dkim=pass (2048-bit key; unprotected) header.d=irif.fr header.i=@irif.fr header.a=rsa-sha256 header.s=dkim-irif header.b=EAbN3xyL Received: from korolev.univ-paris7.fr (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]) by mail.toke.dk (Postfix) with ESMTPS id 451FDA02359 for ; Sun, 30 Apr 2023 14:35:12 +0200 (CEST) Received: from potemkin.univ-paris7.fr (potemkin.univ-paris7.fr [IPv6:2001:660:3301:8000::1:1]) by korolev.univ-paris7.fr (8.14.4/8.14.4/relay1/82085) with ESMTP id 33UCZCkN008133 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Sun, 30 Apr 2023 14:35:12 +0200 Received: from mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [81.194.30.253]) by potemkin.univ-paris7.fr (8.14.4/8.14.4/relay2/82085) with ESMTP id 33UCZCYx030450 for ; Sun, 30 Apr 2023 14:35:12 +0200 Received: from mailhub.math.univ-paris-diderot.fr (localhost [127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTP id 5D0CF61B37 for ; Sun, 30 Apr 2023 14:35:12 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=irif.fr; h= content-type:content-type:mime-version:user-agent:references :in-reply-to:subject:subject:from:from:message-id:date:date :received:received; s=dkim-irif; t=1682858111; x=1683722112; bh= J53zfnurPSUGheDj/K9cNacrgXAgkRC/OQpYfmLLq7A=; b=EAbN3xyLt00lud9l ix8MDZkwQ74jdDbt9aLXMD860pnZH4vr2IjRn/NbIjCbH3IBlNRwQiIPfSfq4vhH 6snD31H5gsehM4z/5gtxXZXef+LPCZD27s2/9GITyiit+EvnhRkvP2N01cYVLzox DVOwVLO3RXlChM2XsizgplX5PzYqKdePJ7mBTfusbVbyYrfJTTAHoXpOfVD1SWeW tYf6M4Ai31INg+OXr804NkQEMbIo9W4SHGWLuJkkjdspkMa85HH6AnQ8mfoj24xF qZkoTvmLs3rfvlPfC1gQ+kOgolnzkmjy1CNddQx6l6Hm3GfSEoE5UlEEDoxqA/lX Grihog== X-Virus-Scanned: amavisd-new at math.univ-paris-diderot.fr Received: from mailhub.math.univ-paris-diderot.fr ([127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id hCUdsisTZhun for ; Sun, 30 Apr 2023 14:35:11 +0200 (CEST) Received: from pirx.irif.fr (unknown [78.194.40.74]) (Authenticated sender: jch) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTPSA id 190E1619F3 for ; Sun, 30 Apr 2023 14:35:10 +0200 (CEST) Date: Sun, 30 Apr 2023 14:35:10 +0200 Message-ID: <87zg6pzgxt.wl-jch@irif.fr> From: Juliusz Chroboczek To: galene@lists.galene.org In-Reply-To: <875y9d1u42.wl-jch@irif.fr> References: <875y9d1u42.wl-jch@irif.fr> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/28.2 Mule/6.0 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]); Sun, 30 Apr 2023 14:35:12 +0200 (CEST) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (potemkin.univ-paris7.fr [194.254.61.141]); Sun, 30 Apr 2023 14:35:12 +0200 (CEST) X-Miltered: at korolev with ID 644E6080.000 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-Miltered: at potemkin with ID 644E6080.000 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 644E6080.000 from potemkin.univ-paris7.fr/potemkin.univ-paris7.fr/null/potemkin.univ-paris7.fr/ X-j-chkmail-Enveloppe: 644E6080.000 from mailhub.math.univ-paris-diderot.fr/mailhub.math.univ-paris-diderot.fr/null/mailhub.math.univ-paris-diderot.fr/ X-j-chkmail-Score: MSGID : 644E6080.000 on korolev.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-j-chkmail-Score: MSGID : 644E6080.000 on potemkin.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-j-chkmail-Status: Ham X-j-chkmail-Status: Ham Message-ID-Hash: UWBU3KDPGQJ3VEVBVAOF5XJ2N3D5WKS7 X-Message-ID-Hash: UWBU3KDPGQJ3VEVBVAOF5XJ2N3D5WKS7 X-MailFrom: jch@irif.fr X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list Subject: [Galene] Re: Command-line client for Galene file transfer List-Id: =?utf-8?q?Gal=C3=A8ne_videoconferencing_server_discussion_list?= Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: > a native command-line client for file transfer. To answer in public the question I got by private mail: - the transfer is peer-to-peer, the server is only used for NAT traversal and for exchanging cryptographic keys; hence, you're not putting any significant load on the server if you use this to backup the collection of movies that you legally acquired; - the transfer is encrypted end-to-end; however, (1) the server gets to learn the filenames and file sizes; (2) the server can trivially mount an MiTM attack. so you must use a trusted server if you wish to preserve a semblance of privacy. I am fairly confident that the latter caveat also applies to Zoom's "end-to-end" encryption. Do not trust any software, especially if you didn't write it yourself. -- Juliusz