[RC5] 40 bit encryption

Satya satyap at satya.virtualave.net
Fri Mar 15 19:57:51 EST 2002

On Mar 15, 2002 at 18:59, Don Cohen wrote:

>Oops I forgot the rightmost bit is 2^0 not 2^1 so 40 bit encription does have 
>2^40 -1 possible keys.

A 40 bit number has maximum 40 bits. Assuming it's an unsigned
integer, there are 2^40 numbers. If you don't wnat to include 0, that
gives (2^40)-1 numbers.

Satya. <URL:http://satya.virtualave.net/>
Any sufficiently advanced technology is indistinguishable from a perl

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