External System for Voice and Data Encryption

Project Title

External System for Voice and Data Encryption

Project Area of Specialization Cyber SecurityProject Summary

Whenever there is a growth in technology, it comes with a cost of detriments. Especially in the field of communication, when people interact with each other through a wireless medium, an intruder may affect the privacy cum integrity of the system and the users. This veracity of the system is ensured using different types of encryption and ciphering techniques. The special radios, which communicate through voice signals may or may not have encryption scheme, embedded in the system. Therefore, to ensure the integrity of the systems used in the radios, ciphering techniques are required. The encrypted signals are then sent over the voice channels. Consequently, the speech signals should be in the form of voice i.e. should have the characteristics, lying in the band of voice. However, the compression and encryption may result in a signal, which does not fulfill this requirement. Therefore, to keep this signal in the band of voice, concerned modulation techniques are used.

This project is a real-time implementation for Voice and Data encryption in which the intended voice is encoded with low bit rate speech CODEC, encrypted and modulated onto speech-like waveforms before sending it over the existing radio channel via Stereo jack, without affecting the inner functionality and implementation behavior of the channel. Data will obviously be decrypted at the receiving end. For data bits, only the encryption algorithm is required, and the resulting bits will be sent to the radio using UART RS-232 serial port.

Project Objectives

This project is basically designed for the HF Radios being used for the military communications. It will enhance the communication security for the radios.

Project Implementation Method

Implementation of Speech Signal Processing methods including COmpression-DECompression (CODEC), encryption-decryption, and MODulation-DEModulation(MODEM), will be done on the two DSP kits, connected to the radios on both ends.

Benefits of the Project

Once the external Module is designed with encryption embedded in it, the device can be attached to any Radio, for communication security.

Technical Details of Final Deliverable

Two DSP-kit based modules, wth embedded algorithms can be attached to the radios.

Final Deliverable of the Project Hardware SystemType of Industry Security , Telecommunication Technologies OthersSustainable Development Goals Industry, Innovation and InfrastructureRequired Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
			Total in (Rs)	70000
TMS320C6455 DSP Starter Kit (DSK)	Equipment	2	35000	70000