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[fitsbits] Hash Functions (MD5 is very obsolete)



 
 
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Old July 8th 08, 02:25 PM posted to sci.astro.fits
Rob Seaman
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Posts: 49
Default [fitsbits] Hash Functions (MD5 is very obsolete)

Hi guys,

Apologies if you see this more than once.

FYI. A reminder that MD5 has been obsolete for several years. So
obsolete that even the U.S. federal government now regards its
successor as similarly obsolete :-)

Rob
--

Begin forwarded message:

From: Danny Mayer
Date: July 8, 2008 4:45:30 AM GMT-07:00
To: NTP Working Group
Subject: [ntpwg] Fwd: NIST's policy on Hash Functions

I'm forwarding this note from a different mailing list on
deprecating MD5. Since NTP uses MD5 we may need to consider this for
various parts of NTP that makes use of hash functions.

Comments?

Danny

PS: NIST'S POLICY ON HASH FUNCTIONS
March 15, 2006: *The SHA-2 family of hash functions (i.e., SHA-224,
SHA-256, SHA-384 and SHA-512) may be used by Federal agencies for
all applications using secure hash algorithms.* Federal agencies
*should* stop using SHA-1 for digital signatures, digital time
stamping and other applications that require collision resistance as
soon as practical, and must use the SHA-2 family of hash functions
for these applications after 2010. After 2010, Federal agencies may
use SHA-1 only for the following applications: hash-based message
authentication codes (HMACs); key derivation functions (KDFs); and
random number generators (RNGs). Regardless of use, NIST encourages
application and protocol designers to use the SHA-2 family of hash
functions for all new applications and protocols. (from http://csrc.nist.gov/groups/ST/hash/policy.html
, I've enclosed emphased words in the original by **)


 




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