Re: [openpgp] signed/encrypted emails vs unsigned/unencrypted headers
Ximin Luo <infinity0@gmx.com> Tue, 16 July 2013 08:29 UTC
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Date: Tue, 16 Jul 2013 09:28:50 +0100
From: Ximin Luo <infinity0@gmx.com>
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To: Werner Koch <wk@gnupg.org>
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Subject: Re: [openpgp] signed/encrypted emails vs unsigned/unencrypted headers
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On 16/07/13 09:16, Werner Koch wrote: > On Tue, 16 Jul 2013 10:06, infinity0@gmx.com said: >> On 03/07/13 00:22, Ximin Luo wrote: > >>> What's the current status of this in the PGP/MIME standard? Is it still a >>> problem? I notice that email subject headers are in a similar situation, and >>> users have complained about it.[3] The problem of unencrypted/unauthenticated >>> recipient is less obvious, so I haven't seen user complaints, but potentially > > There is a simple and standard conform way to tackle this: > message/rfc822 - all covered by PGP/MIME. > > FWIW, PGP/MIME allows you to do encrypt-then-sign or any other > combination - if you really want that. PGP/MIME is a well thought out > and matured system created 17 years ago. > Thanks, I will take a look. Could you take a guess on why this feature is not used more? I haven't seen any emails that use it (either an encrypted To: or Subject: field), either because no emails actually use it, or perhaps it's my client's fault for not displaying it correctly. As mentioned in a previous link, it includes a security issue due to surreptitious forwarding of signed messages to unintended recipients. So I would've thought people writing these PGP email clients would've taken it into account. X -- GPG: 4096R/5FBBDBCE https://github.com/infinity0 https://bitbucket.org/infinity0 https://launchpad.net/~infinity0
- [openpgp] signed/encrypted emails vs unsigned/une… Ximin Luo
- Re: [openpgp] signed/encrypted emails vs unsigned… Ximin Luo
- Re: [openpgp] signed/encrypted emails vs unsigned… Werner Koch
- Re: [openpgp] signed/encrypted emails vs unsigned… Ximin Luo
- Re: [openpgp] signed/encrypted emails vs unsigned… Werner Koch
- Re: [openpgp] signed/encrypted emails vs unsigned… Ben Laurie
- Re: [openpgp] signed/encrypted emails vs unsigned… Ximin Luo
- Re: [openpgp] signed/encrypted emails vs unsigned… Ximin Luo
- Re: [openpgp] signed/encrypted emails vs unsigned… Werner Koch
- Re: [openpgp] signed/encrypted emails vs unsigned… Ximin Luo
- Re: [openpgp] signed/encrypted emails vs unsigned… Werner Koch
- Re: [openpgp] signed/encrypted emails vs unsigned… Ben Laurie
- Re: [openpgp] signed/encrypted emails vs unsigned… Ximin Luo
- Re: [openpgp] signed/encrypted emails vs unsigned… Daniel Kahn Gillmor
- Re: [openpgp] signed/encrypted emails vs unsigned… Ximin Luo