[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
script.

--
To unsubscribe, send 'unsubscribe rc5' to majordomo at lists.distributed.net
rc5-digest subscribers replace rc5 with rc5-digest



More information about the rc5 mailing list