"dark side". In any case, I was asking more for an education
(which you have generously provided) than an argument.
Cheers,
Ron Rivest
The Beer Bottle Cipher
Ron Rivest
6/30/99
Last week an MIT student hacker broke into the famous Yale University
secret drinking society known as "Skull and Bones". He made a
startling discover
s k0 in another representation) than it
is like a general-purpose encryption routine. Of course, it may (or
may not) be easy to modify such distributed code to handle arbitrary
keys (;-))
Food for thought...
Cheers,
Ron Rivest
---
(*) A Post tag system has a number of rewrite
subkey *
* generation need not be terribly large, even if subkey generation is *
* relatively slow compared to encryption/decryption. *
I also note that the other statistics I could find seem to indicate
that the average IP packet size is *increasing* with time.
Comments? Have I overlooked something?
Cheers,
Ron Rivest
Steve --
I asked my colleague, Professor Hari Balakrishnan, also of MIT's Laboratory
for Computer Science, about IP packet sizes. He said:
"I think they first issue to be aware of is that packet sizes on the Internet
are highly bi-modal (actually multi-modal). Many packets are small, about
Steve --
To make the argument clearer (since I received an inquiry
about it):
(total work) = (setup cost per packet)*(total number of packets)
+ (encryption cost per byte)(total number of bytes)
for any data stream. Thus:
(work/byte) = (setup cost per p
Steve --
Don't your statistics support the argument that key agility is
*not* likely to be terribly important by itself?
With a cache capable of storing only 5 key setups, you get at least a
75% hit rate, by your statistics.
This effectively reduces key setup time by a factor of *four*, maki
d
estimates of packet size distributions and key miss rates (if you are
using key setup caches), so I welcome your data!
Cheers,
Ron Rivest
