RE: NIST hash function design competition

2006-07-21 Thread Whyte, William
Travis H. > Sent: Friday, July 21, 2006 9:09 AM > To: Florian Weimer > Cc: Hal Finney; [EMAIL PROTECTED]; cryptography@metzdowd.com > Subject: Re: NIST hash function design competition > > On 7/20/06, Florian Weimer <[EMAIL PROTECTED]> wrote: > > Is this about Colin

Re: NIST hash function design competition

2006-07-21 Thread Travis H.
On 7/20/06, Florian Weimer <[EMAIL PROTECTED]> wrote: Is this about Colin Percival's work? The paper was by Dan Berstein; Percival's comments are specific to hyperthreading, but I think djb's research showed that it's applicable to non-HT architectures as well. -- "Follow where reason leads" --

Re: NIST hash function design competition

2006-07-20 Thread Florian Weimer
* Travis H.: > On 7/11/06, "Hal Finney" <[EMAIL PROTECTED]> wrote: >> : So what went wrong? Answer: NIST failed to recognize that table lookups >> : do not take constant time. â"Table lookup: not vulnerable to timing >> : attacks," NIST stated in [19, Section 3.6.2]. NIST's statement was, >> : and

Re: NIST hash function design competition

2006-07-13 Thread Travis H.
On 7/11/06, "Hal Finney" <[EMAIL PROTECTED]> wrote: : So what went wrong? Answer: NIST failed to recognize that table lookups : do not take constant time. â"Table lookup: not vulnerable to timing : attacks," NIST stated in [19, Section 3.6.2]. NIST's statement was, : and is, incorrect. That's i

Re: NIST hash function design competition

2006-07-11 Thread "Hal Finney"
James Donald writes: > My understanding is that no actual vulnerabilities have > been found in Rijndael. What has been found are reasons > to suspect that vulnerabilities will be found. Yes, I think that's correct on the theoretical side. I was also thinking of some of the implementation issues

Re: NIST hash function design competition

2006-07-11 Thread James A. Donald
Hal Finney wrote: > I had not heard that there had been an official > decision to hold a new competition for hash functions > similar to AES. That is very exciting! The AES > process was one of the most interesting events to have > occured in the last few years in our field. > > Seemed like one o