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NSK 200 GSM Secure Telephone,NSK 201 DECT Single Base Station andNSK 250 Secure Management Centre
(NDLO/CIS)
4
Features of the NSK 200
Conversations up to NATO SECRET
GSM-GSM GSM-DECT
DECT-DECT
5
GSM Transmission channels
Encrypted data channel• Voice transmission• Data transmission• Is used towards NSK 200
Plaintext speech channel• As ordinary GSM/DECT• Used between all other phones• SMS can only be sent as plaintext
6
GSM/DECT Data transmission
Encrypted File-transferNATO SECRET
IrDA
IrDA
GSM/PSTN9,6 kb/s
DECT/PSTN28,8 kb/s
7
NSK 200 - Technical details
Dimensions: 56 x 140 x 30 mmWeight: 235 gGSM phase 2: Dual band 900/1800 MHzBattery capacity: 810-880mAhStand-by-time: Approx. 70 hoursOperation time: Approx. 3 hoursData Interface: Infrared, IrDAData Speed: GSM: 9,6 kbit/s
DECT: up to 28,8 kbit/sSecurity: NATO UNCLASSIFIED
NATO RESTRICEDNATO CONFIDENTIALNATO SECRET
8
NSK 200 Overview
Smart Card Interface
Battery Charger
Hands-free Contact
IrDA InterfaceMenu-wheel
Quick-menu
9
Accessories
• NSK 200 bracket for car• Car charger
• Hands-free combined w/external antenna
•DECT Base station w/connection to PSTN, analogue line
•Tabletop charger•Portable charger 220V
10
Features of the NSK 200
• Encrypted speech is transmitted using the GSM asynchronous transparent data service
• The GSM net performs interleaving of data packets, which results in a minor delay when using encrypted speech
• Encrypted speech and data• Plaintext speech and data• Plaintext SMS• Encrypted SMS is not supported
11
Digital Enhanced Cordless Telecommunications (DECT) SUB
PowerPSTN (Analogue line)
Registration button
Green LED (power)
Red LED (call/registration)
12
Digital Enhanced Cordless Telecommunications (DECT) SUB
Public network
13
Features of the DECT SUB
• The DECT SUB, NSK 201, is mainly used in areas without GSM coverage, connected to the PSTN by an analogue line
• The NSK 200 must be registered in the DECT SUB before making calls
• This is done by activating registration menu in the NSK 200 and pressing the Registration button on the SUB
14
• Encrypted speech and data• Plaintext speech and data• NSK 200 supports 28,8 kbps for
data calls in DECT mode.
Features of the DECT SUB
15
Security Management Centre (SMC)
SMCOSP SMC
(Other Service Provider)
16
Features of the SMC
• The main purpose of the SMC is to distribute traffic keys to the SPs (Secure Phones) in the system.
• The SMC is configured as a dual SMC.• The SMC includes a database
comprising all customer information.• SMC can be connected in a network
to other OSP (Other Service Provider) SMCs.
17
Key Management
Traffic KeyCan be fetched from everywhere
Group KeyHas to be loaded by Crypto CustodianOnly valid for a minor group
NSK 200 can be loaded with both Traffic Keyand Group Keys
Traffic KeyCan be fetched from everywhere
18
Security Requirements
1. General information of the NSK 200 and security classification.
2. Physical Security of NSK 2003. Be aware threat of acoustic eavesdropping4. Use of infrared transmission5. How the Access Card is functioning6. How to clear key memory in NSK 2007. Emergency destruction of the NSK 2008. Breach of Security. Two SDIPs (User and System) under publication
The user of NSK 200 shall be familiar with National Security Requirements:
19
How to use NSK 200
1. Switch on the phone
Insert CIK
Ok Skip
Please wait,communicating
with SC…
2. Insert CIK and press ”OK” You can nowremove CIK
Ok
3. Remove CIK (insert the PIN code)
EnterPIN1
Ok Skip****
4. Ready for use in encrypt. mode
Encr. mode110601 01:33
N Telenor
Last No. Ph.book
20
How to make encrypted call ?
NSK 200 in Encrypted Mode:
Three ways to make a call: 1. Dial the number
directly 2. Quick code buttons3. Via Phone Book
Via Phone Book, select person:
Select number, press ”Call”:
A voice is announcing security level of the call twice, thanthe connection is established:
Encr. mode050401 01:33N TELENOR
Last No Ph.book
Encrypted speechClient NameConnecting
End
NATO RESTRICTED1:47
Client NameChoice End
21
How to make plaintext call ?
NSK 200 in Plaintext Mode:
Select ”Make plain call” in the menu
The connection is established:
Dial number and press ”Call”
Encrypion mode050401 01:33N TELENOR
Latest Ph.book
Make plain call
Ok Cancel
Plaintext mode
Call Delete
Three ways to make a call: 1. Dial the number
directly 2. Quick code buttons3. Via Phone Book
23092940
Plain speech23092940
ConnectingChoice End
22
How to make encrypted DECT call ?
NSK 200 in Encrypted Mode:
Three ways to make a call: 1. Dial the number
directly 2. Quick code buttons3. Via Phone Book
Via Phone Book, select person:
Select number, press ”Call”:
A voice is announcing security level of the call twice, thanthe connection is established:
Encr. mode050401 01:33N TELENOR
Last No Ph.book
Encrypted speechClient Name
Connecting DECT End
NATO RESTRICTED1:47
Client NameChoice End
Select DECT on the Quick Menu”R”-buttton
Encr. mode050401 01:33DECT Name
Last No Ph.book