Re: [Hash] Charter discussion, round 1
Russ Housley <housley@vigilsec.com> Fri, 17 June 2005 15:43 UTC
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Date: Fri, 17 Jun 2005 11:43:16 -0400
To: Thomas Roessler <tlr@w3.org>
From: Russ Housley <housley@vigilsec.com>
Subject: Re: [Hash] Charter discussion, round 1
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Perhaps "as a parameter to the algorithm identifier" captures the intent even better. It would read: 2) Including a random value in the hash function computation. The random block used is transferred as a parameter to the algorithm identifier. This approach is sometimes called a "salted" or "randomized" hash function. Russ At 04:43 AM 6/17/2005, Thomas Roessler wrote: >On 2005-06-16 07:53:27 -0700, Paul Hoffman wrote: > > > >On 2005-06-09 13:02:47 -0700, Paul Hoffman wrote: > > > > > >> 2) Including a random value in the hash function computation. The > > >> random block used is transferred as a parameter in the algorithm > > >> identifier. This approach is sometimes called a "salted" or > > >> "randomized" hash function. > > > >Is this meant to imply an approach where hash identifiers would look > > >like, say, "shaN-0xdeadbeef", 0xdeadbeef being the salt? Or is it > > >merely meant to imply that the seed would be transferred along with > > >the algorithm identifier, somehow? > > > The proposal is a -00 draft, so it has not yet been decided, but it > > is extremely likely to be the latter. IETF protocols don't usually > > carry the names of algorithms, but instead use numeric identifiers > > for them. In the current case, it is likely that the salt would be > > carried as a parameter in an ASN.1 construct, or something similar. > >Thanks for the clarification. > >Maybe you could change "in the algorithm identifier" to "with the >algorithm identifier", to make a little clearer that this >description is not tied to any particular assumption of what an >algorithm identifier looks like? > >Thanks, >-- >Thomas Roessler, W3C <tlr@w3.org> _______________________________________________ Hash mailing list Hash@lists.ietf.org https://www1.ietf.org/mailman/listinfo/hash
- Re: [Hash] Charter discussion, round 1 Eric Rescorla
- [Hash] Hash BoF Russ Housley
- [Hash] Charter discussion, round 1 Paul Hoffman
- Re: [Hash] Charter discussion, round 1 Paul Hoffman
- RE: [Hash] Charter discussion, round 1 Jim Schaad
- Re: [Hash] Charter discussion, round 1 D. J. Bernstein
- Re: [Hash] Charter discussion, round 1 EKR
- Re: [Hash] Charter discussion, round 1 Paul Hoffman
- RE: [Hash] Charter discussion, round 1 Russ Housley
- Re: [Hash] Charter discussion, round 1 Russ Housley
- Re: [Hash] Charter discussion, round 1 Paul Hoffman
- Re: [Hash] Charter discussion, round 1 Russ Housley
- Re: [Hash] Charter discussion, round 1 The Purple Streak, Hilarie Orman
- Re: [Hash] Charter discussion, round 1 Russ Housley
- RE: [Hash] Charter discussion, round 1 Jim Schaad
- RE: [Hash] Charter discussion, round 1 Russ Housley
- RE: [Hash] Charter discussion, round 1 Paul Hoffman
- Re: [Hash] Charter discussion, round 1 Ben Laurie
- Re: [Hash] Charter discussion, round 1 Russ Housley
- Re: [Hash] Charter discussion, round 1 Paul Hoffman
- Re: [Hash] Charter discussion, round 1 Ben Laurie
- Re: [Hash] Charter discussion, round 1 Paul Hoffman
- Re: [Hash] Charter discussion, round 1 Ben Laurie
- Re: [Hash] Charter discussion, round 1 Eric Rescorla