[Cryptography] Whitening Algorithm

[Dave Horsfall]

On Thu, 23 Jul 2015, Ray Dillinger wrote:

> As a lightweight CSPRNG suitable for devices of modest compute power, I 
> recommend the 'Spritz' algorithm developed by Rivest & Schuldt.  
> Although it's fairly new, it seems quite good.

Bruce Schneier doesn't seem to like it, but thinks it's clever anyway:

    https://www.schneier.com/blog/archives/2014/10/spritz_a_new_rc.html

``Spritz is Rivest and Schuldt's redesign of RC4. It retains all of the
  problems that RC4 had. It's built on a 256-element array of bytes, 
  making it less than ideal for modern 32-bit and 64-bit CPUs. It's not very 
  fast. (It's 50% slower than RC4, which was already much slower than 
  algorithms like AES and Threefish.) It has a long key setup. But it's a 
  very clever design.''

-- 
Dave Horsfall DTM (VK2KFU)  "Those who don't understand security will suffer"
Watson didn't say "I think there is a world market for maybe five computers."