On 08.02.18 15:04, Michael Carbone wrote:
> On 01/12/2018 10:13 AM, Patrick Brunschwig wrote:
>> On 12.01.18 14:58, Lachezar Dobrev wrote:
>>> 2018-01-04 19:00 GMT+02:00 Lachezar Dobrev <[email protected]>:
>>>> 2018-01-04 17:07 GMT+02:00 Patrick Brunschwig <[email protected]>:
>>>>> The question is, what is the text that is above and below the decrypted
>>>>> message. I try not to display the warning if the message was completely
>>>>> inline-PGP encrypted, but that's pretty hard to do in the message
>>>>> composition window (where the original message is no longer available).
>>>>>
>>>>> You could also ask your peers to install K-9 (plus OpenKeychain), or
>>>>> R2Mail2. Both can create and read PGP/MIME messages just fine.
>>>>>
>>>>> -Patrick
>>>>
>>>>   Ahh! I think I saw something!
>>>>   I have a signature configured in my Thunderbird Account. When
>>>> Thunderburd attaches it it adds -- as separator, so the footer ends up
>>>> like:
>>>> """
>>>> --
>>>> Lachezar Dobrev
>>>> etc. etc.
>>>> """
>>>>   When I disabled the signature responding to an Inline-PGP no longer
>>>> displays the warning.
>>>>
>>>>   Thunderbird manages -- signatures by removing them from the message
>>>> that is being replied to before quoting it and adding the new
>>>> signature below the quoted (and signature-stripped) original mail.
>>>> Does that make sense?
>>>>
>>>>   Steps to reproduce:
>>>>   - Open account settings
>>>>   - Put some text in the 'Signature Text'
>>>>   - Send an encrypted mail to one's self
>>>>   - Reply to the encrypted message
>>>>   - Observe the warning.
>>>
>>>   Is there any progress on this?
>>
>> No, I didn't look into it.
> 
> FYI I am finding the warning happens every time I respond to someone who
> uses Mailvelope (with gmail for example) and who has an automatic footer
> as described by Lachezar  -- so the received email is inline PGP text,
> with uencrypted footer at bottom.
> 
> I think the error description is really poor at communicating anything
> useful to the user, here is another attempt:
> 
> """
> The message you are replying to contained both unencrypted and encrypted
> parts. If the sender was not able to decrpyt some message parts
> originally, you may be leaking confidential information that the sender
> was not able to originally decrypt themselves by quoting the original
> message. Please consider removing all quoted text from your reply to
> this sender.
> """

Thanks, that's a good suggestion for inline-PGP messages (there are
other types of messages where your suggestion won't work, but these are
specially manually crafted messages that no mail client would produce).

-Patrick

Attachment: signature.asc
Description: OpenPGP digital signature

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