[ratelimits] Remarks regarding the Knot DNS 1.2.0 RRL implementation

[Chris Thompson]

On Mar 5 2013, Vernon Schryver wrote:

>It sounds like the popular crypto hash function mistake.  The virtues
>of cryptographic hash functions are unrelated to their collision
>probabilities.

Not *completely* unrelated. A cryptographic hash that produced a particular
result a significant proportion of the time (you can imagine the reductio
ad absurdum case I am thinking of) would certainly be vulnerable to a (1st
or 2nd) pre-image attack.

-- 
Chris Thompson               University of Cambridge Computing Service,
Email: cet1 at ucs.cam.ac.uk    New Museums Site, Cambridge CB2 3QH,
Phone: +44 1223 334715       United Kingdom.