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RE: IPSEC WORKING GROUP LAST CALL



We need a 40 bit DES description which defines how to weaken the key.
And we need a transform number.



On Thursday, February 19, 1998 9:43 PM, Theodore Y. Ts'o [SMTP:tytso@MIT.EDU] wrote:
>    Date: Thu, 19 Feb 1998 21:14:05 -0800
>    From: Daniel Harkins <dharkins@cisco.com>
> 
>      A 2key 3DES is 112bit while a 3key 3DES is 168 (although I never did
>    like those numbers since 3 DES keys are 192 bits not 168 bits). 
> 
> Err, right.  I should know better than to send e-mail out after midnight
> without first checking my multiplcation first.  Sorry about that....
> (The only lame excuse I can give is that my brain was fried after a full
> day of dealing with ipsec/ca-talk issues at Needham today...)
> 
>    And draft-ietf-ipsec-ciph-3des-00.txt is definately a 3key 3DES. So I
>    think Ramesh is talking about a 2key 3DES. But there is no draft
>    which defines such a transform so the request to add a magic number
>    for it is premature.  
> 
> Agreed.
> 
>      As far as the other drafts are concerned, I'd like to see 3DES get
>    added to the pile but given the size of the pile already I wouldn't have
>    a problem with waiting on the rest.
> 
> Noted.  Anybody else who wants to express an opinion on this, now's the
> time to speak up.
> 
> 						- Ted
> 


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