[Enigmail] Weird error

[John Clizbe]

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 P. Clizbe                      Inet: John (a) Mozilla-Enigmail.org
You can't spell fiasco without SCO. PGP/GPG KeyID: 0x608D2A10/0x18BB373A
"what's the key to success?"        / "two words: good decisions."
"what's the key to good decisions?" /  "one word: experience."
"how do i get experience?"          / "two words: bad decisions."

"Just how do the residents of Haiku, Hawai'i hold conversations?"

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