[openpgp] PGP/MIME, RFC 3156, Require empty boundary preamble lines
Kai Engert <kaie@kuix.de> Mon, 20 September 2021 09:58 UTC
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Subject: [openpgp] PGP/MIME, RFC 3156, Require empty boundary preamble lines
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Hello, is this list an appropriate place to discuss PGP/MIME topics? Please see the following example message: https://bugzilla.mozilla.org/show_bug.cgi?id=1690603#c16 There is one line marked with "---> preamble line inside signed content". Thunderbird 78 had added a non-empty preamble line, which was removed by a mail transport agent, causing the signature verification to fail. Perhaps a future revision of RFC 3156 could state that preamble lines inside the signed payload MUST be empty - in the hope that no transport agent will add their own preamble lines. (TB 91 contains a coincidental change that produces empty preamble lines, I haven't yet investigated what had caused this, but it likely has the side effect to fix the reported scenario.) I don't know if there are any transport agents that ADD preamble lines - hopefully there aren't. Regards Kai
- [openpgp] PGP/MIME, RFC 3156, Require empty bound… Kai Engert
- Re: [openpgp] PGP/MIME, RFC 3156, Require empty b… Werner Koch
- Re: [openpgp] PGP/MIME, RFC 3156, Require empty b… Daniel Kahn Gillmor
- Re: [openpgp] PGP/MIME, RFC 3156, Require empty b… Kai Engert