| PressingAdmin@Ctrl-Alt-Del.net 2005-04-10, 5:46 pm |
| In article <courier.4258A68D.00006A94@meinkeksi.eniac.de>
Mohawk <mohawk@nym.at> wrote:
>
> I am a remailer user.
>
> I communicate using cypherpunk remailer messages which I handroll.
> Sometimes I do this through my nym account. And sometimes without a
> pseudonym but anonymously all the same.
>
> I like to send out dummy messages every once in a while to frustrate
> potential traffick analysis.
>
> To create a dummy message I compose a message like this:
>
> ===================
> ::
> Null: somebogusaddress@example.com
>
> ##
> Subject: (No subject)
>
> -----BEGIN PGP MESSAGE-----
> Version: N/A
>
> qANQR1DDDQQCAwIC4/ LuAy8yS2DJvqXRX7CmmtyaBmzmZAwUU8vhdM85O9
B2tsQT
> khJWSzvAvwtO2AUIFJmxt3uH7v0/a4/W2t0j8jqosypesggo3ivPyF+ab+hMCvjD
> xZbs+nb8FbcwJ3ha3qSuyipFCIT7WjR86vvu1cX0
gkdSxpU45Xifksiz1SH/j7Eb
> wWGwwmzofz8tDZvx54X3dc05BHeMDgBR5zdTKxz7
tf1eL3jO3NpckiomX3W5Pqdm
> H82hv0ql99cQyKMV12Uoz3tAXrs=
> =kaWd
> -----END PGP MESSAGE-----
>
> ==================
>
> and encrypt it through multiple hops.
>
> Is that correct so far?
>
> It's somewhat time-consuming to repeatedly handroll these dummy
> messages.
>
> My question is: can I create one dummy message and re-use it
> again and again over a period of weeks and months? Or does an
> encrypted message expire after some time and get discarded by
> the remailers it arrives at?
>
> Put more simply can I create an encrypted PGP message on
> April 9th and send it out on Sept 9th and will it be accepted
> as valid and passed on?
>
> I am also a newbie programmer. 'Just starting to learn C. Would
> a dummy message generator be a difficult project for me to write?
> Would it be useful to others here?
>
> Thanks.
Most Reliable remailers perform an MD5 hash on messages, and
delete duplicates. This would serve your purpose for dummy
traffic TO the first remailer in your chain. It would not
propogate through the chain after it was first sent. (Most
remailer servers generate dummy messages, so this should not be
a problem.
The problem would be, if someone were doing traffic analysis on
you, having the same message for dummy traffic would make it
trivial for the attacker to locate your true messages by
deleting identical messages.
(PS a simple batch file can easily generate custom dummy
messages for you.)
|