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Re: Recipient Anonymity
[email protected] (Ulf =?iso-8859-1?Q?M=F6ller?=) wrote:
> How are messages selected? It seems that the recipient needs to know
> the message IDs of all messages in the system, and must have a way to
> identify his messages.
Yes. Message-IDs on usenet average around 30-35 bytes each, so for a
typical remailer one might have to download 1000 Message-IDs, which would
take about 32K, not much bigger than the message itself.
You could also use MD5 hashes of the messages, in which case a list of
1000 message-IDs would take only 16K. (In the unlikely event of a hash
collision you could download those two messages seperately. Unless the
number of messages was huge (millions), you could probably get away with
using only a 32 or 64-bit hash function.)