key change for TCP-MD5

Mon Jun 19 12:59:45 UTC 2006

Steven M. Bellovin wrote:

> I just submitted an I-D on TCP-MD5 key change.  Until it shows up in the
> official repository, see
> http://www.cs.columbia.edu/~smb/papers/draft-bellovin-keyroll2385-00.txt
> Here's the abstract:
> 
>                 The TCP-MD5 option is most commonly used to secure
>                 BGP sessions between routers.  However, changing
>                 the long-term key is difficult, since the change
>                 needs to be synchronized between different
>                 organizations.
>                 We describe single-ended strategies that will permit
>                 (mostly) unsynchronized key changes.
> 
> 
> Comments welcome.
> 
> 		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb
> 
> 

This I-D says BGP implementations should be able to be configured with 
multiple keys for peers and should do the Intelligent Thing with them.

Makes sense to me.

Did I read it right?