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RFC 4186, "Extensible Authentication Protocol Method for Global System for Mobile Communications (GSM) Subscriber Identity Modules (EAP-SIM)", January 2006

Source of RFC: IETF - NON WORKING GROUP
Area Assignment: ops
See Also: RFC 4186 w/ inline errata

Errata ID: 956
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Alfred Hoenes
Date Reported: 2006-11-26
Verifier Name: Henry Haverinen
Date Verified: 2006-12-01

Section 10.14 says: 

   The value field of the AT_MAC attribute contains two reserved bytes
   followed by a keyed message authentication code (MAC).  The MAC is
|  calculated over the whole EAP packet and concatenated with optional
   message-specific data, with the exception that the value field of the
   MAC attribute is set to zero when calculating the MAC.

It should say:

   The value field of the AT_MAC attribute contains two reserved bytes
   followed by a keyed message authentication code (MAC).  The MAC is
|  calculated over the whole EAP packet, concatenated with optional
   message-specific data, with the exception that the value field of the
   MAC attribute is set to zero when calculating the MAC.

Notes:

"The MAC is calculated ... and concatenated ..."
could easily be misunderstood.
From the context it can be concluded that the potential ambiguity
should be resolved and clarified by omitting the word 'and',
and replacing it by a comma.

from pending

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