full-disclosure - Re: MD5 algorithm considered toxic (and harmful)

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Message-ID: <4ef5fec60712011509qc21ddb9x769de40b1544b34a@mail.gmail.com>
Date: Sat, 1 Dec 2007 15:09:32 -0800
From: coderman <coderman@...il.com>
To: "Kristian Erik Hermansen" <kristian.hermansen@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: MD5 algorithm considered toxic (and harmful)

On Dec 1, 2007 5:06 AM, Kristian Erik Hermansen
<kristian.hermansen@...il.com> wrote:
> [MD5 is dead like WEP]

yup.

> And since Chinese researchers have been
> attacking SHA-1 lately, should SHA-256 be considered the proper
> replacement?

SHA2 is good.  (so 256 or 512).  the design differs from SHA1 and
avoids the weaknesses being exploited against this hash func.

still, ~2^69 collision resistance for SHA1 is a world of security
better than MD5.  iMD5 is really dead, lingering only to feast on the
brains of the unawares...

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