Dear Customers, Partners and Suppliers,
As the COVID19 pandemic spreads around the world, the entire Shoghi team is mobilizing to ensure the best possible continuity of operations.
To ensure the health of our teams, we have put in place adapted working methods.Some of our teams are now working from home, while another teams are available round the clock to provide all technical support for all our existing customers utilizing our systems.
Shoghi's switchboard remains available during working hours 9:30am to 1:00pm and 2:00pm to 6:00pm.
Switchboard : +91 120 403 6600
Administration: +91 120 403 6601
Accounting & Legal: + 91 120 403 6612
Sales Support: + 91 120 403 6606
Technical Support: + 91 120 403 6616
Your usual contact persons in sales / customer service / purchasers / engineers remain available on their mobile lines, via e-mail and video conferencing. Please do not hesitate to contact them or call the switchboard for their contact details.
We hope that we can help to meet your needs during this troubled period and prepare for the return of nominal operation as soon as possible.
The A5.1 Decryptor is used to decrypt GSM communications which are encrypted using the GSM A5.1 encryption standard. This equipment is used in conjunction with the Semi-Active or the Passive GSM monitoring system. The A5.1 Decryptor is capable of decrypting A5.1 encrypted GSM communications in real-time. One A5.1 Decryptor can decipher upto 32 sessions simultaneously and can serve the deciphering key to 5 systems in a network.
The system is a single circuit board based on ASIC components and housed inside a ruggedized case along with cooling module. It is powered from compact external power supply. It is controlled by the processing laptop, which is responsible for communication between A5.1 Decryptor and GSM monitoring system.
GSM Interception System sends A5.1 encrypted bit stream to A5.1 Decryptor, usually one encrypted burst derived from forward (downlink) channel. A5.1 decryptor calculates ciphering key Kc and sends it back to the GSM interception system. The GSM interception system implements Kc and decrypts communication.