[Enigmail] Weird error

[Patrick Brunschwig]

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John Clizbe wrote:
> Robert J. Hansen wrote:
>> I have a message which successfully decrypts and verifies on Thunderbird
>> and Enigmail, running on OS X.
>>
>> The same message bombs out at the command line.
> 
> 
>> gpg: quoted printable character in armor - probably a buggy MTA has been
>> used
> 
> 
>> When I try decrypting this message on an Ubuntu 8.04 box with
>> Thunderbird and Enigmail, it bombs.  When I decrypt it at the command
>> line on Ubuntu 8.04, it bombs.
>>
>> This seems highly weird to me.  I have the original message, stripped of
>> header information and other assorted things, posted at:
>>
>> 	http://sixdemonbag.org/buggy_message.asc
>>
>> Anyone have any idea what's going on here?
> 
> Yep. You've been told already: quoted printable.
> 
> Last two lines. Recall in base=64, '=' is only allowed as null filler,
> so at the end of the message there shouldn't be anything after the '='.
> Ditto the CRC being an extra two characters too long, should only be five.
> 
> Quoted printable uses a two digit hex value prefixed with '='.
> 
> 0x3D = '=' = '=3D'
> 
> s/=3D/=/ and it should decrypt.
> 
> Quoted printable should have been specified in the messages' MIME headers.
> 
> TB on OS X is interpreting the '=3D' correctly and changing it back to
> '=' before passing to Enigmail and GnuPG.
> 
> It would appear to be a Ubuntu bug.
> 
> The q-p encoding of '=' is also what is keeping it from decrypting on
> the command line.

John's completely right. The question is why does it work on Mac OS X
and not on Linux? I assume you use Thuderbird and Enigmail as provided
by Ubuntu; which version of Enigmail is installed with Ubuntu 8.04?

- -Patrick
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