E F Johnson Company 2425341 Benutzerhandbuch
SECURE COMMUNICATION (ENCRYPTION)
63
OTAR Rekey Request - Sends a message which tells
the KMF that the radio is on the air and requests
rekeying. The following status messages are displayed
which indicate the progress of this function. Addi-
tional functions that are available when this is selected
using the 5100 menu mode are described in the next
section.
the KMF that the radio is on the air and requests
rekeying. The following status messages are displayed
which indicate the progress of this function. Addi-
tional functions that are available when this is selected
using the 5100 menu mode are described in the next
section.
Rekeying - A radio-initiated rekeying session is in
process.
process.
No Ack - No response was received from the KMF
in response to an Identify request before time out
occurred (approximately 30 seconds).
in response to an Identify request before time out
occurred (approximately 30 seconds).
Ack Rcvd - An acknowledgement was received in
response to an Identify request.
response to an Identify request.
No Service - A “No Service” reply was received
from the KMF. No rekeying will take place.
from the KMF. No rekeying will take place.
Rekey Fail - Either the rekey command failed or
timed out (after approximately 30 seconds). This
message could indicate that the rekey request
message was not received by the KMF. However,
depending on the KMF configuration and channel
traffic, it is possible that the message was received
and a response is still pending.
timed out (after approximately 30 seconds). This
message could indicate that the rekey request
message was not received by the KMF. However,
depending on the KMF configuration and channel
traffic, it is possible that the message was received
and a response is still pending.
Rekeyed! - The rekey session initiated by the radio
was successful.
was successful.
Additional Functions Selectable by 5100 Menu:
(To select one a parameter, highlight it and press
F2.)
F2.)
Rekey - Performs the same function as the OTAR
Rekey Request option switch described in the
preceding section.
Rekey Request option switch described in the
preceding section.
Need KEK - Sends a request for a new KEK (Key
Encryption Key). Upon receiving this message, the
KMF marks the radio as requiring service. One time
this function may be selected is if the radio dumps it
keys.
Encryption Key). Upon receiving this message, the
KMF marks the radio as requiring service. One time
this function may be selected is if the radio dumps it
keys.
Identify - Sends a message which tells the KMF that
the radio is on the air. Currently, the KMF always
responds with “No Service”, even if the keys are not
up to date. If “No Ack” is displayed, the KMF may
not have received the message (see preceding
section). This function can be used to test communi-
cation without initiating the rekeying that occurs
with the preceding “Rekey” function.
the radio is on the air. Currently, the KMF always
responds with “No Service”, even if the keys are not
up to date. If “No Ack” is displayed, the KMF may
not have received the message (see preceding
section). This function can be used to test communi-
cation without initiating the rekeying that occurs
with the preceding “Rekey” function.
Erase Keys - Erases all keys in the radio the same as
the Erase Keys option switch described in the
preceding section.
the Erase Keys option switch described in the
preceding section.