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Re: DNS? was Re: Key Management, anyone?



 
Hilarie, 
 
>TCP requires IP, so the IETF guidelines cannot be  
>taken too seriously in the regard to banning protocol dependencies! 
 
Yes, they are only loose recommendations, and I believe (not having the exact 
RFC in front of me) that the intent was to minimise the interaction between 
major subsystems and not specific protocols. 
 
>Why isn't DNSSEC the appropriate minimal common basis for authentication? 
 
This seems to be a strong direction of recent mailing list discussion...  
 
DNSSEC is one way to format and distribute certificates.  It also implies a 
specific trust model and naming based on DNS. 
 
An IPsec specification should provide recommendations for the minimum required 
certificate format for IPsec authentication. 
 
For ISAKMP, I do not see why certificate distribution is required.  Peer 
systems can readily exchange all required certificates directly, so a 
certificate distribution system like DNS may not be required. 
 
 
 
Paul 
 
 
 
 
 
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Paul Lambert                     Director of Security Products 
Oracle Corporation                       Phone: (415) 506-0370 
500 Oracle Parkway, Box 659410             Fax: (415) 413-2963 
Redwood Shores, CA  94065               palamber@us.oracle.com 
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I agree with the individual points, but I'm not convinced by the conclusion.
Why isn't DNSSEC the appropriate minimal common basis for authentication?
I believe we need such a basis, and DNSSEC seems to be the obvious choice.
This wouldn't rule out the optional use of other methods.

TCP requires IP, so the IETF guidelines cannot be taken too seriously in
the regard to banning protocol dependencies!

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