Military High Speed Encryption System

The DSD72A-SP Encryption System provides strategic security for high data rate signals in demanding environments. Critical applications such as missile firing commands, emergency military telephone networks, and command and control networks are protected today by the DSD72A-SP.

Maximum cryptologic security for military and top-level government applications is achieved with TCC's SNARKTM key generator and automated key management. Two crypto synchronization methods, long cycle and cipher feedback, are built into the system and allow it to stay on-line in a variety of error and jamming environments.


Applications

  • Missile Systems
  • Radio Relay Networks
  • Microwave Systems
  • C3I Networks
  • Troposcatter Systems

Proven Design

The DSD72A-SP has been designed, tested and field proven to operate in demanding environments. Over 2,000 units are on-line today in all regions of the world protecting highly classified information. The systems are tested under severe conditions specified in Mil Spec 810D for temperature, humidity, vibration, rain, and other elements.

Quality is designed and manufactured into all of TCC's systems. The factory is MIL-Q-9858A approved, and the company is ISO 9001 certified.

Features

  • Strategic cryptologic security
  • Automated key management
  • Multiple interface and synchronization options
  • Mil Spec, field proven design
  • System tested and approved

Key Management

Automated and secure key management throughout the key life cycle is provided by TCC's DSD72A-SP and Crypto Management System (CMS). The DSD72A-SP stores 800 keys, a much greater number than any other system, to minimize the need to load new keys.

Truly random keys are generated and allocated by the CMS. TCC's SmartModuleTM and KFD 800C, two high capacity and secure key transport devices, are used to deliver and load keys into the encryption units. The keys are encrypted for distribution, so a loss of a key transport device does not jeopardize the security of the network.

Once the full set of 800 keys are loaded into the unit, key management is automatic. Keys can be automatically changed on a timed basis. Even with daily changing keys, new keys need only be loaded once every two years. Downline indexing keeps a communicating pair of DSD72A-SP units on the same key. No sensitive keying information is sent over the air, only the key index numbers are sent.

All keys are stored in a battery backed RAM capable of retaining the keys for five years without power. Tamper resistant packaging causes keys to be erased if a unit is opened. Keys may also be destroyed quickly and simply from the front panel to protect their secrecy in case of imminent overrun.

Remote Operations

Remote control of encryption minimizes the need to send field service to the unit for ordinary diagnostics, configuration or preventive maintenance. This information is accessible remotely in both centralized and decentralized networks.

In centralized networks, a CCMS with Command LinkTM connection to each DSD72A-SP can do most everything that can be done at the front panel of each unit in the network. Diagnostics, access to error and alarm logs, configuration, key allocation and usage and other functions are available and programmable at the CMS system.

In decentralized networks, on the other hand, DSD72A-SP units form communicating pairs with each pair having a designated Master unit. The Master unit is placed at the more accessible site and has the ability to check remote unit status, run remote diagnostics and access error and alarm codes.

Quality

TCC is dedicated to quality products and services. TCC is ISO 9001 certified. ISO 9001, granted to TCC by TUV, is the most stringent standard available for total quality systems in design/development, production, installation and servicing.

Technical Specifications

CRYPTOLOGY Key Generators:
SNARKTM PK2M or MKG non-linear key generators

Modes of Operation:
Cipher Feedback and Long Cycle Mode both with automatic synchronization
KEY MANAGEMENT
(SNARKTM)		 Crypto Key Variables:
120-bit Local Key
8-bit Network Key
128-bit MKEK (Optional)

Key Storage:
800 Local Keys stored in two keybanks

Key Loading:
SmartModuleTM encrypted key transport and KFD 800C electronic keyfill device
DATA RATE Full Duplex at 64 Kbps to 34 Mbps
REMOTE OPERATION Diagnostics from remote DSD72A-SP

CMS centralized control of key management, configuration and diagnostics
INTERFACE OPTIONS CCITT G.703/CEPT E1
CCITT G.703/CEPT E2
North American T1
Eurocom D/1
ATACS
TRI-TAC
V.35/RS-422
Other interfaces upon request
POWER DC:
24V to 48V nominal, ±20%
or
AC:
85V to 264V, 47 Hz to 440 Hz

Power Consumption:
20W maximum
ENVIRONMENTAL Mil Std 810D Operating Temperature:
-20o C to +70o C

Storage Temperature:
-40o C to + 85o C

Humidity:
95% for 240 hours, Method 507.2, Procedure III

Rain:
Method 506.2, Procedure I

Transit Drop:
Method 516

Shock:
Method 516.3, Procedure I

Vibration:
Method 514.3, Procedure I

Altitude:
Method 500.2, Procedure II

EMI:
MIL STD 461A, CS02, CS06, RS03

MTBF:
Ground Fixed 12,000 hrs., Ground Mobile 8,000 hrs.
SIZE AND WEIGHT 35.6 D x 43.2 W x 15.3 H cm
14 L x 17 W x 6 H inches
11.4 kg (25 lbs)
DIAGNOSTICS (BITE) On-line tests:
No data, keyfail, CPU, ROM integrity and key table integrity Off-line tests:
CPU, RAM, ROM, LED, LCD, keypad, self-loop and Command LinkTM
ACCESSORIES
  • Crypto Management System (CMS)
  • SmartModule
  • KFD 800C
  • Installation Kits
  • 19" Rack Mount
  • Shock Mount
  • Model 70 Test Fixture

SmartModule, SNARK, and Command Link are trademarks of Technical Communications Corporation.

All Specifications are subject to change without notice.