Encrypt/Decrypt Feature Test - IBM 3274 51C Maintenance Information

9. Press the ENTER key. The top two rows of the
display screen should change to:
EMKV
Note: If a 1 or a 2 appears at the top center of the
screen and EMKV does not appear, you entered the
1 through F characters incorrectly at Step 8. To
recover, enter the 1 through F characters correctly
and press the ENTER key again.
10. Press the ENTER key. If the Terminal Master Key
is as expected, 99 will appear at the top center of the
screen; if it is not as expected, 44 will appear at the
top center of the screen.
II. To continue your operation, remove the Encrypt/
Decrypt diskette and proceed with your normal
operation.
6.6 Encrypt/Decrypt Feature Test
The 3274 Problem Determination Guide may instruct you
to perform this test procedure when you are having
problems operating with the Encrypt/Decrypt feature.
This test modifies the Terminal Master Key currently being
used by the 3274.
This test involves entering a Terminal Master Key of
"01 23456789ABCDEF" ; when this Terminal Master Key
is entered, a verification value of "FI88 D850 4894 139E"
is displayed if the Encrypt/Decrypt feature is operating
properly.
1. If any terminals attached to the 3274 are in use,
notify all terminal operators that the 3274 operation
is going to be interrupted; then wait until all
operations are ended.
I 2. Use the 3178,3278 or 3279 attached to 3274 port
AO to perform this procedure. Locate the 3278/3279
attached to 3274 port AO; make sure it has a key-
board and is turned on.
3.
An)(
~
397,)(
~
398, or)(
~
399 code
a ppearing in the Opera10r Information Area during
this procedure indicates an Encrypt/Decrypt failure.
Refer to the 3274 Problem Determination Guide for
the recovery procedure.
4. Place the diskette drive operator knob in the open
position (as shown in the illustration) and remove
the diskette. Insert the Encrypt/Decrypt diskette
into the diskette enclosure and place the operator
knob in the closed position.
5. If the 3274 is turned on, press the IML pushbutton
on the 3274 control panel; if the 3274 is turned off,
press the
m
portion of the 3274 On/Off switch.
6. If the security key is not inserted into the 3274
security keylock (located in the customer access
area, below the Operator Panel), obtain the security
key from the appropriate person in your organization
and insert the key into the security keylock.
7. Make sure the security keylock is in the fully clock-
wise (horizontal) position; if it is not, turn the key
clockwise to the horizontal position.
8. Go to the 3278/3279 display station that is attached
to 3274 port AO. The top two rows of the screen
should contain the following information:
001
XXXXXXXXXXXXXXXX
9. Use the keyboard to enter the characters
I 234567890ABCDEF into the character positions
occupied by the X's. If you miskey any characters,
use the cursor move keys (-- and - ) on the
right side of the keyboard to move the cursor to
the character position(s) to be corrected.
10. Press the ENTER key. The top two rows of the
display screen should change to:
EMKV
Note: If a 1 or a 2 appears at the top center of the
screen, you entered the 1 through F characters
incorrectly at step
9. To recover, enter the 1
through F characters correctly and press the ENTER
key again.
Chapter 6. 3274 Encrypt/Decrypt Feature 6-5