Re: NIST publishes new DSA draft
Ben Laurie <ben@algroup.co.uk> Wed, 15 March 2006 12:22 UTC
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Date: Wed, 15 Mar 2006 11:57:15 +0000
From: Ben Laurie <ben@algroup.co.uk>
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To: Hal Finney <hal@finney.org>
CC: james.couzens@electricmail.com, ietf-openpgp@imc.org
Subject: Re: NIST publishes new DSA draft
References: <20060314233108.1B3AF57FB0@finney.org>
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Hal Finney wrote: > James Couzens writes: >> I had thought it a bit strange that someone writing so comprehensively >> about something related to digital signatures and to then make the >> statement as you did at the end of the paragraph I quoted. Did you have >> some other intended meaning, such as broken by draft explicit >> prohibition or otherwise declared deprecated in a future draft? > > Yes, sorry, my language was not as precise as it might have been. > I said we should be ready in case SHA-1 were broken, but as you note > it has been officially "broken" for over a year. However that is just > a theoretical break and no actual examples of SHA-1 message collisions > have yet been published. So at this point SHA-1 is in a bit of a limbo > state, theoretically broken but still in widespread use. Its also worth noting that reducing the collision resistance to 2^69 still leaves it stronger than unbroken MD5 and is still well within the realms of hardness we require. Cheers, Ben. -- http://www.apache-ssl.org/ben.html http://www.links.org/ "There is no limit to what a man can do or how far he can go if he doesn't mind who gets the credit." - Robert Woodruff
- NIST publishes new DSA draft David Shaw
- Re: NIST publishes new DSA draft "Hal Finney"
- Re: NIST publishes new DSA draft James Couzens
- Re: NIST publishes new DSA draft "Hal Finney"
- Re: NIST publishes new DSA draft James Couzens
- Re: NIST publishes new DSA draft "Hal Finney"
- Re: NIST publishes new DSA draft Ian Grigg
- Re: NIST publishes new DSA draft Werner Koch
- Re: NIST publishes new DSA draft Ben Laurie
- Re: NIST publishes new DSA draft Ben Laurie
- Re: NIST publishes new DSA draft vedaal
- RE: NIST publishes new DSA draft Anton Stiglic
- Re: NIST publishes new DSA draft David Shaw
- Re: NIST publishes new DSA draft "Hal Finney"
- Re: NIST publishes new DSA draft David Shaw
- Re: NIST publishes new DSA draft Ian G
- Re: NIST publishes new DSA draft Werner Koch
- Re: NIST publishes new DSA draft David Shaw
- Re: NIST publishes new DSA draft Jon Callas
- Re: NIST publishes new DSA draft Jon Callas
- Re: NIST publishes new DSA draft Ian G
- Re: NIST publishes new DSA draft David Shaw
- Re: NIST publishes new DSA draft Tony Hansen
- Re: NIST publishes new DSA draft David Shaw
- Re: NIST publishes new DSA draft Ben Laurie
- Re: NIST publishes new DSA draft Jon Callas
- Re: NIST publishes new DSA draft Jon Callas
- Re: NIST publishes new DSA draft Ben Laurie
- Re: NIST publishes new DSA draft Jon Callas