ietf-dkim
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Re: [ietf-dkim] Base-02 //Deprecated Signature Version & New List

2006-06-22 15:31:08

On Jun 22, 2006, at 2:21 PM, Stephen Farrell wrote:



Douglas Otis wrote:
On Jun 22, 2006, at 10:45 AM, Eric Allman wrote:
There are many reasons I don't like this proposal. Let me start with the easily fixed ones:

(1) Overloading existing tags to add new functionality is absurd. Adding "d" to the end of the version has nothing to do with the version;

Eric's right there IMO.

>> (3) Wasn't the issue of downgrade attacks discussed in Dallas and
>> resolved on the list?  In specific, it was issue 1196 (Upgrade
>> indication and protection against downgrade attacks).  As near as
>> I can tell, the exact same issues that Doug is raising were discussed >> in this issue, and a frankly much more elegant approach was proposed.
>> Why is this issue alive again?
>
> This issue still needs review.

We have consensus that 1196 [1] is closed. One voice doesn't change
that.

Stephen.

[1] https://rt.psg.com/Ticket/Display.html?id=1196

There remains the issue describing a deprecated algorithm as being ignored, which is identical to treatments for obsolete algorithms (signature versions). Perhaps there could be few minutes placed on the agenda to allow an attempt to explain why this could become a problem. The solution could be as simple as defining an optional c= tag (concurrent requirement) in the key.

-Doug _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html