Re: [Cfrg] HMAC-MD5

2006-03-29 Thread vlastimil . klima
I agree with Steven´s I'd rather avoid HMAC-MD5, just as a matter of future-proofing. And more. In am nearly sure that a preimage attack (MD5) will be found in the next two or three years. Vlastimil Klima http:/cryptography.hyperlink.cz - PŮVODNÍ ZPRÁVA - Od: Steven M. Bellovin [EMAIL

[EMAIL PROTECTED]: Fwd: Re: Any idea of who could help? Thanks!]

2006-03-29 Thread R. Hirschfeld
From: Tommy Poggio [EMAIL PROTECTED] Subject: Fwd: Re: Any idea of who could help? Thanks! Date: Tue, 28 Mar 2006 16:42:53 -0500 This is a question from a Globe reporter...anybody with useful pointers to relevant experts/people? thanks! t 03/27/2006 04:23:13 PM Dear Tommy -- I am

Enigma for sale on EBay

2006-03-29 Thread Steven M. Bellovin
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=6265092168ruhttp%3A%2F%2Fsearch.ebay.com%3A80%2Fsearch%2Fsearch.dll%3Ffrom%3DR40%26satitle%3D6265092168%26fvi%3D1 http://www.theregister.co.uk/2006/03/29/enigma_for_sale/ --Steven M. Bellovin, http://www.cs.columbia.edu/~smb

Re: [Cfrg] HMAC-MD5

2006-03-29 Thread Victor Duchovni
On Wed, Mar 29, 2006 at 10:51:08AM +0200, [EMAIL PROTECTED] wrote: In am nearly sure that a preimage attack (MD5) will be found in the next two or three years. Is there already evidence of progress in that direction? -- Viktor.

Deciphering Incan khipu

2006-03-29 Thread Vin McLellan
Boston Globe reporter Gareth Cook [EMAIL PROTECTED] was awarded the 2005 Pulitzer Prize for Explanatory Journalism for explaining, with clarity and humanity, the complex scientific and ethical dimensions of stem cell research. He's an unusually talented writer. _Vin

Re: [Cfrg] HMAC-MD5

2006-03-29 Thread Hal Finney
A couple of (rather uninformed) thoughts regarding HMAC-MD5: First, how could collision attacks be extended to preimage attacks? And second, how would preimage attacks affect HMAC-MD5? For a preimage attack, consider the simplest case, a single input block of 64 bytes. Then Hash = IV +

Your secrets are safe with quasar encryption

2006-03-29 Thread Sean McGrath
http://www.newscientisttech.com/article.ns?id=dn8913print=true Your secrets are safe with quasar encryption * 16:00 29 March 2006 * NewScientist.com news service * Will Knight Intergalactic radio signals from quasars could emerge as an exotic but effective new tool for securing