Date: Tue, 15 Jun 1999 17:53:19 -0700 From: Gregory Sutter <gsutter@pobox.com> To: Kris Kennaway <kkennawa@physics.adelaide.edu.au> Cc: freebsd-security@FreeBSD.ORG Subject: Re: DES & MD5? Message-ID: <19990615175319.W37775@001101.zer0.org> In-Reply-To: <Pine.OSF.4.10.9906160927520.22473-100000@bragg>; from Kris Kennaway on Wed, Jun 16, 1999 at 09:31:22AM %2B0930 References: <19990615135003.U37775@001101.zer0.org> <Pine.OSF.4.10.9906160927520.22473-100000@bragg>
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On Wed, Jun 16, 1999 at 09:31:22AM +0930, Kris Kennaway wrote: > On Tue, 15 Jun 1999, Gregory Sutter wrote: > > > At USENIX, Niels Provos and David Mazieres presented a paper entitled > > "A Future-Adaptable Password Scheme", in which they described two > > algorithms with adaptable cost, including a block cipher _eksblowfish_ > > and _bcrypt_, a related hash function. In the paper, they have a > > comparison graph of traditional/bitsliced DES, MD5, and bcrypt (Figure > > 5). In summary, the graph shows bcrypt to be over 10^1 times slower > > than MD5 and many orders of magnitude slower than DES. MD5 is itself > > many orders of magnitude slower than DES, but has a fixed cost. > > > > FTR, bcrypt supports a variable number of rounds so that it will be > > adaptable and secure as hardware speeds increase. I left the > > presentation very impressed with the work. > > This is the openbsd password hash scheme, isn't it? It is indeed the OpenBSD password hash scheme. > I've got patches to support this (among other things) almost ready to go. Wow, Kris, that's marvelous news. Congratulations and thanks! Greg -- Gregory S. Sutter "Software is like sex; it's better mailto:gsutter@pobox.com when it's free." -- Linus Torvalds http://www.pobox.com/~gsutter/ PGP DSS public key 0x40AE3052 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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