[rc5] Random keyblocks (and Tardy Blocks)
HaberlaA at testlab.orst.edu
Mon Aug 25 12:53:52 EDT 1997
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From: Geoffrey Graham [SMTP:ggraham at ucsd.edu]
Sent: Monday, August 25, 1997 11:33 AM
To: rc5 at llamas.net
Subject: Re: [rc5] Random keyblocks (and Tardy Blocks)
>I have also wondered about the "Tardy Blocks" problem. Does
>what happens to these? Say someone wants to run the client,
>five blocks, and then decides it's too taxing on their system
>off the client. What happens to the unfinished blocks and how
>the block servers wait before handing them out????
It does not matter. Theoretically, every key has the exact
same probability of being correct. This means that it does not
matter in which order we test them. Except for the overhead
involved in keeping track of keys that were not included in the
keyspace, there is no reason to worry about them. five blocks
in 268435456 is a one in 1.862645149231e-8 chance that we've
missed it and have to come back.
When are people going to stop asking these questions?
Why do people insist that missed keys are valuable?
Why do people think that checking them in order is important
(except for tracking overhead)?
Adam Haberlach haberlaa at ucs.orst.edu
Crack DES now! http://www.frii.com/~rcv/deschall.htm
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