ietf-openpgp
[Top] [All Lists]

Re: [openpgp] Reducing the meta-data leak

2015-11-04 08:32:07
"Neal H. Walfield" <neal(_at_)walfield(_dot_)org> writes:

Bryan Ford proposed getting rid of all unencrypted meta-data.  In
particular, he wanted to get rid of the recipients / number of
recipients.

I'm not at all sure how you would remove the number of recipients; you
still need N encrypted session key packets.  Therefore anyone reading
the message can count the ESKs.

There are some practical difficulties with this approach,
which I mentioned above.

My proposal is a blue sky idea to avoid having to try to decrypt a
message with every secret key while (hopefully) making it more
difficult to get at the list of recipients.

Is it really worth the overhead?

Neal

-derek
-- 
       Derek Atkins                 617-623-3745
       derek(_at_)ihtfp(_dot_)com             www.ihtfp.com
       Computer and Internet Security Consultant

_______________________________________________
openpgp mailing list
openpgp(_at_)ietf(_dot_)org
https://www.ietf.org/mailman/listinfo/openpgp

<Prev in Thread] Current Thread [Next in Thread>