-----BEGIN PGP SIGNED MESSAGE----- Would it be possible to incorporate a ping into the remailer? Say give it a list of known remailers for the chain and have it pick one at random, then ping it. If the remailer responds then send out the mail, otherwise pick a new remailer, and repeat.... Or this there a flaw in this that I'm just too ignorant to see? FRC -----BEGIN PGP SIGNATURE----- Version: 2.3a iQCVAgUBLI0UtbbAlE4AqlTZAQEtTQP/SZlTdkSn+fwiO13SybCHGArjWPpl+xg8 CnSxgw7coYUWdMUU/kwnCQWuLKVsZigcLQmlm1SUvvf6MADmkENF1A0V1Q7kej7Q CCHEjvKA78oHAFBjw3b/BuBAGIibtuGubrSDp/65fe3jF2obDwK4mJqSlD9dcWLC SzU58NCnl9M= =zmFE -----END PGP SIGNATURE-----
-----BEGIN PGP SIGNED MESSAGE----- How does this make TA trivial? I am assuming that batch mailings or staggered mailings are occuring. The remailers are known locations so any traffic between mailers is assumed to be observed. The key is making it impossible to correlate arrival and departure time of any particular message. Am I missing something? -----BEGIN PGP SIGNATURE----- Version: 2.3a iQCVAgUBLI0h2bbAlE4AqlTZAQExOAQAs6lLhVMjm5hi9swLgkLFJUSz8SazhlfW 5RDTBxNJs2oxt0oit1oEvKqBR26zKKayrwQf2O1DIxQD/f08qfIRS5dbLiz8c4VE 5XiP5j+HBr9j/mt5EiN8uCukpi1eP4pCq/cl82UDqkA8kkosvNDfSY26ubmf97FH 3uNbJ6vkWv0= =qryI -----END PGP SIGNATURE-----
How does this make TA trivial? I am assuming that batch mailings or staggered mailings are occuring.
That is not currently the case. And even if it were, sending messages to yourself is going to add a significant "known quantity" to the remailer traffic. The more an attacker knows, the less he needs to figure out. Marc
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And even if it were, sending messages to yourself is going to add a significant "known quantity" to the remailer traffic. The more an attacker knows, the less he needs to figure out.
How is pinging a known address considered sending messages to yourself? FRC -----BEGIN PGP SIGNATURE----- Version: 2.3a iQCVAgUBLI6O3bbAlE4AqlTZAQE2qAP7ByAj4hf0IMYBqBhTQDuLY0mSIDGrYSdn ahpDILrnvdPDcz6Lh72lAdT5QIXa8e+2hi/4PLXXPtQpmuW52uSSZjhN4w2FaLUl /Y6ZccEWbbau4Okyw+RUUjJYZbWT4EUjv2vLiN06NjJaPztJJXwFKKWeLnJNixci 2xjZOa3iMKw= =oUif -----END PGP SIGNATURE-----
participants (2)
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frc%bwnmr4＠harvard.harvard.edu -
Marc Horowitz