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Discovery Telecom
Communication & other equipment.
Easy to choose, easy to buy
Tel./Fax: +358 9 3158 7490
E-mail: info@discoverytelecom.eu
Communication & other equipment.
Easy to choose, easy to buy
E-mail: info@discoverytelecom.eu
Decryptor A5.1 for calculating keys with passive and active interceptors
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The main functions and characteristics
The Decrypt Unit (Deciphering Network Multi-processor Unit) - this is a real-time information system, that is designed to calculate the A.5/1 session encryption key of any active, passive and hybrid GSM network monitoring systems (interception systems).
The module can simultaneously serve several GSM network monitoring systems. The connection is made directly to the monitoring system or via the Internet, while the Decryption Unit can be located remotely.
The A5.1 coding is a stream cipher which is used to provide over-the-air (OTA) communication privacy in the GSM cellular standard. As the result, all OTA data is covered by the session key KC. Upon discovering the KC, an entire GSM session can be restored with voice, SMS recording, etc.
The hardware is controlled by a computer which is responsible for the deciphering configuration and the communication between the A5.1 Deciphering unit and GSM monitoring system.
The A5.1 Deciphering unit is a network device and can be connected to the operator’s computer either directly by LAN cable or wirelessly using any available communication (GPRS, UMTS, satellite link, etc.) or via highly secured Internet VPN connection.
The special software for A5.1 Deciphering unit can maintain more than one GSM system according to a present priority. It is a typical server-client application. Usually, the A5.1 Deciphering unit is located in a customer’s head quarter and is connected with GSM monitoring systems via Internet or Intranet.
Pooling resources
One deciphering unit can serve several GSM monitoring systems with priority tuning. Several deciphering units can be used with one GSM monitoring system at the same time.Specification
| Handling of parallel evaluation | up to 80 K/C |
| Minimum deciphering time | 0.01 sec |
| Average deciphering time (for probability > 98%) | 0.5 sec |
| Connection with GSM System | Ethernet, Internet |
| Operating temperature range | +5° to +25° C |
| Storage temperature range | -20° to +60° C |
| Humidity | +40° C at 95% |
| Power supply | 12/24/220V |
| Power consumption | up to 250W |
| Dimensions | 330 x 268 x 80 mm |
| Weight | 4 kg
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www.discoverytelecom.eu
Please check prices and availability of equipment.