Re: DES Key Decryption Time

On Wed, 09 Apr 2003 20:45:47 +0200, Slawek said:

> In hardware you can unroll the loop and use pipelining giving even 1 cycle

Well.. one externally visible cycle - if you unroll the loop you need to either have 16 cascading stages that use async logic or timing signals to keep all the bits in sync. ;)

I wonder how many clock cycles it would take using a 2901 bitslice (anybody remember those? ;)