Re: I-D ACTION:draft-ietf-smime-hmac-key-wrap-00.txt

["Housley, Russ" <[e-mail]>]

Francois:

The document describes how to use the NIST AES Key Wrap algorithm to 
encrypt an HMAC key.  The NIST algorithm requires an input that is a 
multiple of 64-bits.  The document describes the mechanism to pad the HMAC 
key prior to encryption and remove the pad after decryption.

Russ

At 02:55 PM 2/12/2002 -0500, [e-mail] wrote:
>Hi Russ,
>
>Sorry I am not registered on the S/MIME mailing list, but feel free to
>distribute your answer.
>
>If I am not mistaken, it is my understanding that the AES Key Wrap Algorithm
>from NIST can be used to wrap any key data and not just another AES key.
>This is also consistent with section 2 of
>draft-ietf-smime-aes-keywrap-00.txt.  This implies that you would certainly
>not need this new proposed Internet Draft for wrapping an HMAC key with an
>AES key.
>
>Regards,
>
>Francois
>---------------------------------
>Francois Rousseau
>IT Standards, Senior Advisor - CSE
>Conseiller Superieur, Normes TI - CST
>[e-mail]
>[phone]
>Edward Drake Building
>1500 Bronson, Ottawa, Ontario, K1G 3Z4