From: David Bremner Date: Thu, 29 Jan 2015 12:42:35 +0000 (+0100) Subject: gmime and S/MIME X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=8c868d70513815c892577151dfaa476496c2cfa5;p=notmuch-archives.git gmime and S/MIME --- diff --git a/fd/93088a99a1bd6d192e1ce573a13d2c2f5b4780 b/fd/93088a99a1bd6d192e1ce573a13d2c2f5b4780 new file mode 100644 index 000000000..ec5a073e3 --- /dev/null +++ b/fd/93088a99a1bd6d192e1ce573a13d2c2f5b4780 @@ -0,0 +1,85 @@ +Return-Path: +X-Original-To: notmuch@notmuchmail.org +Delivered-To: notmuch@notmuchmail.org +Received: from localhost (localhost [127.0.0.1]) + by olra.theworths.org (Postfix) with ESMTP id 2362B431FBC + for ; Thu, 29 Jan 2015 04:43:47 -0800 (PST) +X-Virus-Scanned: Debian amavisd-new at olra.theworths.org +X-Spam-Flag: NO +X-Spam-Score: 2.438 +X-Spam-Level: ** +X-Spam-Status: No, score=2.438 tagged_above=-999 required=5 + tests=[DNS_FROM_AHBL_RHSBL=2.438] autolearn=disabled +Received: from olra.theworths.org ([127.0.0.1]) + by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024) + with ESMTP id TV3cxzdi2tZK for ; + Thu, 29 Jan 2015 04:43:44 -0800 (PST) +Received: from mx.xen14.node3324.gplhost.com (gitolite.debian.net + [87.98.215.224]) + (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) + (No client certificate requested) + by olra.theworths.org (Postfix) with ESMTPS id D4949431FAF + for ; Thu, 29 Jan 2015 04:43:43 -0800 (PST) +Received: from remotemail by mx.xen14.node3324.gplhost.com with local (Exim + 4.80) (envelope-from ) + id 1YGoQr-0003ZI-8c; Thu, 29 Jan 2015 12:42:49 +0000 +Received: (nullmailer pid 9114 invoked by uid 1000); Thu, 29 Jan 2015 + 12:42:36 -0000 +From: David Bremner +To: gmime-devel-list@gnome.org +Subject: gmime and S/MIME +User-Agent: Notmuch/0.19+48~gb74ed1c (http://notmuchmail.org) Emacs/24.4.1 + (x86_64-pc-linux-gnu) +Date: Thu, 29 Jan 2015 13:42:35 +0100 +Message-ID: <87twz9wyf8.fsf@maritornes.cs.unb.ca> +MIME-Version: 1.0 +Content-Type: text/plain +Cc: notmuch@notmuchmail.org +X-BeenThere: notmuch@notmuchmail.org +X-Mailman-Version: 2.1.13 +Precedence: list +List-Id: "Use and development of the notmuch mail system." + +List-Unsubscribe: , + +List-Archive: +List-Post: +List-Help: +List-Subscribe: , + +X-List-Received-Date: Thu, 29 Jan 2015 12:43:47 -0000 + + +With a few others, I've been attempting to get S/MIME supported in +notmuch (which as you might or might not remember is using gmime +underneath). The signature verification part is working OK, but I've +gotten a bit bogged down trying to get decryption working. + +What I have learned is that according RFC5751, smime message (parts) +look like + + Media type: application/pkcs7-mime + parameters: any + file suffix: any + + Media type: multipart/signed + parameters: protocol="application/pkcs7-signature" + file suffix: any + + Media type: application/octet-stream + parameters: any + file suffix: p7m, p7s, p7c, p7z + +Unless I miss something, out of the box there is only support for +decrypting multipart/encrypted. In particular the gmime tests for +S/MIME use this "container format" [1]. + +So I'm wondering if I'm confused about the RFC(s), or about GMIME, or is +one suppose to write analogs of g_mime_multipart_encrypted_decrypt for +other top level parts? + +Cheers, + +David + +[1]: https://github.com/GNOME/gmime/blob/master/tests/test-smime.c