Revision
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Modified
Wed Aug 21 07:03:37 2002 UTC
(10 years, 9 months ago)
by
rabbi
File length: 1213 byte(s)
Diff to
previous 150
Currently, if Mixmaster is encrypting mail to multiple recipients, it does
not honor key preferences, and defaults to 3DES with no MDC.
It should choose the "most prefered" settings between the recipients, only
using 3DES/MDC if no other choice is available.
(We'll have to make some reasonable tie-breaking decisions, too -- for
instance, if one key lists AES,CAST and another lists CAST,AES -- which do
we take? I think we should have an internal "preference order" that is
used in these cases. I propose AES128,AES256,AES192,CAST5,3DES,IDEA,BLOW).
We'll want to use the MDC feature in all possible cases. Fixing this is
most important -- I'd be okay with using 3DES whenever we have multiple
recipients, as long as we could use MDC if they each advertised either
support for it in the features flag, or support for ciphers 7,8,9, or 10
(even though we don't support 10).
Hmm. Something else to check -- PGP 7.x can decrypt MDC when used with
3DES, right?
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