HP 8920A, User Manual

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Chapter 6, Call Processing Subsystem
AUTHENTICATION Screen
A_Key
The A_key is a 26-digit decimal number stored in the mobile station’s permanent
security and identification memory and is not accessible to the user. The user must
obtain a valid
A_Key
from the mobile station’s manufacturer or from the HLR/AC
to test Authentication procedures, otherwise the authentication process will fail.
The Test Set reads the first 20-digits and using them during the authentication
process. The Test Set does not write data back to the A_key field during manual
operation.
NOTE: A_key generation is not available through the manual user interface. A_key generation is only
supported through the remote user interface.
Authent
This field is used to activate the authentication process within the Test Set. With
this field set to
On
, the Test Set issues system parameter overhead messages
including
SPC WORD1
,
SPC WORD2
,
ACCESS
,
RandChalA
, and
RandChalB
to
the mobile station.
ESN
This field is used to enter the electronic serial number (ESN) of the mobile station.
There are two methods which can be used to enter the
ESN
. The serial number can
be entered as an 8-digit hexadecimal value directly into this field or it can be
captured by the Test Set through a registration order.
To enter the electronic serial number directly, select the ESN field and enter the
information in hexadecimal format.
RAND_A
RAND_A is the 16 most significant bits of
RAND
and is entered as a 4-digit
hexadecimal value. The mobile station stores and uses the most recent version of
RAND in the authentication process. RAND_A is user definable.
RAND_B
RAND_B is the 16 least significant bits of
RAND
and is entered as a 4-digit
hexadecimal value. The mobile station stores and uses the most recent version of
RAND in the authentication process. RAND_B is user definable.