| | I have been contemplating how to mark broadcast messages as being | 'for' someone. To foil traffic analysis, you don't want to include | their nym or key-id, for the sake of the your poor CPU, you want to | avoid the need to attempt decryption on everything that passes through.
Keys are cheap. Everyone should have a bunch. To foil TA, hand out a key to each correspondant. Give them id's like 'latex.limb.malaise <alt.anonymous.mesages>'
Yes, but any set of messages sent under a particular key are linked for purposes of traffic analysis. You would need to hand out (potentially) a key per message, or stacks of keys. At which point, you're doing something very similar to what I suggested. I personally think that it would be easier to manage fewer keys and use something very simple (like a large random number) for message tagging, but this is just me. Doug