
Ruggedized Data Encryption System
The DSD 72A-SP Encryption System provides strategic-level cryptographic security for high speed data signals in demanding environments. Critical applications such as missile targeting and launching commands; emergency military telephone networks; and command and control networks are protected today by the DSD 72A-SP.
Maximum cryptographic security for military and top-level government applications is achieved with TCC's SNARK™ key generator and automated key management. Two crypto synchronization methods are available: long cycle sync mode and cipher feedback sync mode. Both are built into the unit and allow it to stay on-line in a variety of data error and jamming environments.
Applications
- Missile Systems
- Radio Relay Networks
- Microwave Systems
- C3I Networks
- Troposcatter Systems
Proven Design
The DSD 72A-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 DSD 72A-SP and Crypto Management System (CMS). The DSD 72A-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 SmartModule™ 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 DSD 72A-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 Link™ connection to each DSD 72A-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, DSD 72A-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: SNARK™ PK2M or MKG non-linear key generators Modes of Operation: |
| KEY MANAGEMENT (SNARK™) |
Crypto Key Variables: 120-bit Local Key 8-bit Network Key 128-bit MKEK (Optional) Key Storage: Key Loading: |
| DATA RATE | Full Duplex at 64 Kbps to 34 Mbps |
| REMOTE OPERATION | Diagnostics from remote DSD 72A-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: |
| ENVIRONMENTAL Mil Std 810D | Operating Temperature: -20° C to +70° C Storage Temperature: Humidity: Rain: Transit Drop: Shock: Vibration: Altitude: EMI: MTBF: |
| 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 Link™ |
| ACCESSORIES |
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SmartModule, SNARK, and Command Link are trademarks of Technical Communications Corporation.
All Specifications are subject to change without notice.

