Large Primes

[Adrian Midgley]

How many bits should the key for a substantial narrative or summary piece=
 of=20
a medical record be, in order to reasonably hope it will not be read with=
in=20
the lifetime of the patient or the doctor concerned?

I know, string: length of... but I'm reminded of the passage in Neal=20
Stephenson's novel Cryptonomicon where Randy is asked to generate a new 4=
096=20
bit key for what is a thinly disguised GPG with the avowed aim of maintai=
ning=20
a secret communication "as long as men have the capacity to do evil".



--=20
=46rom one of the Linux desktops of Dr Adrian Midgley=20
http://www.defoam.net/            =20