Efail or OpenPGP is safer than S/MIME

Andrew Gallagher andrewg at andrewg.com
Mon May 14 13:49:57 CEST 2018


On 14/05/18 12:25, Robert J. Hansen wrote:
> The problem is that gpg doesn't say anything. I would expect a
> DECRYPTION_FAILED message here:

So perhaps the solution is to throw a big warning and prompt when an
integrity check failure is thrown by gnupg? That would mitigate the
current issue, but allow for reading pre-MDC emails as per Werner's
earlier link.

The problem here is that an integrity failure is a serious error when it
occurs in a context where oracle behaviour is possible (such as email),
but it's much less serious when used outside that context. Just because
gnupg says it's only a warning-level offence doesn't mean enigmail
should agree...

-- 
Andrew Gallagher

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