1994-08-28 - Re: $10M breaks MD5 in 24 days

Header Data

From: Phil Karn <karn@qualcomm.com>
To: perry@imsi.com
Message Hash: 9d9ed89a123ca8f5e9382125eb846ac8908e61925706d94b58adb67eaf608ab2
Message ID: <199408280651.XAA13677@servo.qualcomm.com>
Reply To: <9408260027.AA05595@snark.imsi.com>
UTC Datetime: 1994-08-28 06:52:57 UTC
Raw Date: Sat, 27 Aug 94 23:52:57 PDT

Raw message

From: Phil Karn <karn@qualcomm.com>
Date: Sat, 27 Aug 94 23:52:57 PDT
To: perry@imsi.com
Subject: Re: $10M breaks MD5 in 24 days
In-Reply-To: <9408260027.AA05595@snark.imsi.com>
Message-ID: <199408280651.XAA13677@servo.qualcomm.com>
MIME-Version: 1.0
Content-Type: text/plain


>Well, I suppose this demonstrates that the NSA knew what they were
>doing when they set the SHA's length to 160 bits. Let it never be said
>that they aren't right on top of everything...

On the other hand, I can't imagine that NSA is unaware that strong
cryptographic hash functions designed for authentication are also
useful building blocks for a confidentiality cipher. Which might make
them less than wholly enthusiastic about doing their best on a public
standard like SHA.

Caveat emptor NSA. (John Cleese, if you're out there, feel free to
correct my Latin).

Phil

Thread

• Return to August 1994

• Return to September 1994

• Return to “alex <cp@omaha.com>”
• Return to “Hal <hfinney@shell.portal.com>”
• Return to ““Ian Farquhar” <ianf@simple.sydney.sgi.com>”
• Return to ““Perry E. Metzger” <perry@imsi.com>”

• Return to “Phil Karn <karn@qualcomm.com>”

• 1994-08-25 (Thu, 25 Aug 94 13:58:33 PDT) - $10M breaks MD5 in 24 days - Hal <hfinney@shell.portal.com>
  • 1994-08-26 (Thu, 25 Aug 94 17:01:47 PDT) - Re: $10M breaks MD5 in 24 days - alex <cp@omaha.com>
    • 1994-08-26 (Thu, 25 Aug 94 17:37:35 PDT) - Re: $10M breaks MD5 in 24 days - “Perry E. Metzger” <perry@imsi.com>
    • 1994-09-01 (Thu, 1 Sep 94 15:52:56 PDT) - Re: $10M breaks MD5 in 24 days - “Ian Farquhar” <ianf@simple.sydney.sgi.com>
  • 1994-08-26 (Thu, 25 Aug 94 17:28:36 PDT) - Re: $10M breaks MD5 in 24 days - “Perry E. Metzger” <perry@imsi.com>
    • 1994-08-28 (Sat, 27 Aug 94 23:52:57 PDT) - Re: $10M breaks MD5 in 24 days - Phil Karn <karn@qualcomm.com>
      • 1994-08-29 (Sun, 28 Aug 94 17:01:30 PDT) - Re: $10M breaks MD5 in 24 days - “Perry E. Metzger” <perry@imsi.com>