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Davis paper revisited // separation of signed and encrypted messages into clearsigned messages

2003-08-21 10:57:04

have been able to separate a signed and encrypted message into a freestanding
verifiable clearsigned message

have put up the example here:

(the keys and messages are in 3des, idea is not necessary )

would like to ask:

[1] is there any way to distinguish the composite reconstruction forgery
from a 'real' de novo clearsigned message ?

[2] is there a difference between GnuPG and PGP in the way a message
is clearsigned, as opposed to signed and encrypted,
that might distinguish the forged composite, from a real clearsigned

while the Davis paper describes separating and re-encrypting,
it doesn't deal with separating into a freestanding clearsigned message.



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