Ethereal-users: Re: [Ethereal-users] Verify DNS MD5 with Ethereal

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From: "Mordechai T. Abzug" <morty@xxxxxxxxxx>
Date: Fri, 25 Jun 2004 16:37:26 -0400
On Fri, Jun 25, 2004 at 11:26:22AM -0500, Benjamin Long wrote:

> I have configured DNS zone transfer security using MD5. I'm 99.5%
> positive that it is configured correctly. However, when I use
> ethereal on an initial zone transfer I can read the contents of the
> packets in clear text. I do see a tag "HMAC-MD5.SIG-ALG.REG.INT" in
> each packet. I need to verify that the transfers passed over the
> network are encrypted.

MD5 is a one-way hash.  It's used for authentication, not data
encryption.

- Morty