Daniel Kahn Gillmor writes on februar 4, 2018 19:32:
On Sun 2018-02-04 18:52:22 +0100, Gaute Hope wrote:This is done to hide Bcc-recipients.sure, but i'm wondering why you throw *all* keyids, instead of only the key-ids of the bcc'ed people?
Because that is currently the only option when using GMime .
As you say, GnuPG must try all the secret keys; but many users use some sort of keyring to unlock their keys - in which case the hassle is limited to a bit extra time. I don't have any stats on this though!right, but the sender can't know whether this is the case or not, i think. fwiw, i do agree with you that the onus is ultimately on the recipient's MUA to fix this UI/UX disaster; but why force it on them in the case where it doesn't actually eliminate any metadata leakage? (i.e., when they're in To: or Cc: already, and not Bcc'ed)
Agreed; it should be turned off (as per the spec in my previous email) when there are no Bcc-recipients. The best would of course be to send the e-mail seperately to each Bcc-recipient, but that feels like being overly careful / taking on the job of the MTA.
Regards, Gaute  https://developer.gnome.org/gmime/stable/GMimeMultipartEncrypted.html#g-mime-multipart-encrypted-encrypt
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