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Re: Last Call: <draft-harkins-ipsecme-spsk-auth-03.txt> (Secure PSK Authentication for IKE) to Informational RFC

2011-04-22 00:08:53
On 4/22/2011 7:54 AM, Dan Harkins wrote:


  Hi Mykyta,

  Thank you for reviewing my draft. Responses inline....

On Sat, March 26, 2011 10:06 pm, Mykyta Yevstifeyev wrote:
Hello,

A question on the flowing extract:

This memo contains a new numberspace to be managed by IANA, a
    registry used to indicate a password preprocessing technique.  The
    initial layout of this registry SHALL be:

    o   0x00 : None

    o   0x01 :RFC2759  <http://tools.ietf.org/html/rfc2759>

    o   0x02 : SASLprep

    The Prep field is 8 bits long and all other values are available
    through assignment by IANA.  IANA is instructed to assign values
    based on "Specification Required" (see [RFC5226
<http://tools.ietf.org/html/rfc5226>]).
It contains the description of new registry. but it fails to give it the
distinctive definition.  Among other, what is the exact name of the
registry?  How are the fields named?  The sentence "The Prep field is 8
bits long and all other values are available through assignment by
IANA." also makes me confusing.  This means that the Prep field is not
assigned by IANA?  Finally, 0x00 is Unassigned or Reserved?

Thus, this extract needs more clarification.

  How would the following look to you:

  "This memo contains a new numberspace to be managed by IANA, the
   password preprocessing method (Prep) registry. The initial layout
   of this registry SHALL be:

   o   0x00 : None (no preprocessing is performed)

   o   0x01 : RFC2759

   o   0x02 : SASLprep

   The Prep field is 8 bits long and all other values are available
   through assignment by IANA.  IANA is instructed to assign values
   based on "Specification Required" (see [RFC5226])."

This looks strangely familiar ;-).  From RFC 5931:

 The following is the initial layout for the password pre-processing
 method registry:

   o   0x00 : None

   o   0x01 : RFC2759

   o   0x02 : SASLprep

   The Prep field is 8 bits long, and all other values are available
   through assignment by IANA.  IANA is instructed to assign values
   based on "Specification Required" (see [RFC5226]).

Is there some good reason not to use the IANA Registry already
established
(http://www.iana.org/assignments/eap-pwd-parameters/eap-pwd-parameters.xml#eap-pwd-parameters-4)?

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