"Robert J. Hansen" <r...@sixdemonbag.org> writes: > OpenPGP is not meant to provide deniable communications. It is > concerned primarily with message confidentiality (encryption) and > message integrity (signing). Just like blenders blend, PFDs float, and > it's unwise to try and make one do the other's job, I think it's unwise > to crowbar OpenPGP into being a deniable protocol.
Deniability is "nice", but more generally confusing Mallory is a Good Thing(tm) as she'll have more work to do. Providing deniability seems to imply more work on the part of Mallory. Say the point is not to prove "Alice sent Bob a message", but instead Mallory wants to get at the plain-text. If she can't know for sure that Clyde can decrypt it -- or any specific person -- then she'll have to steal several keys before she finds the right one. -- PGP: A0E4 B2D4 94E6 20EE 85BA E45B 63E4 2BD8 C58C 753A PGP: 2C23 EBFF DF1A 840D 2351 F5F5 F25B A03F 2152 36DA
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