Wireless encryption and decryption newRF Based Wireless Encryption and Decryption Message transfer system for Military Applications
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This document describes an RF-based wireless encryption and decryption system for military applications. The system aims to protect data transmission between remotely located military units from interception. It uses a PC as a transmitter to encode messages and a PIC microcontroller at the receiver to decode them. The communication occurs via RF transmitters and receivers operating at 433.92 MHz. The receiving unit provides password protection so that the message can only be viewed if the correct password is entered.
Wireless encryption and decryption newRF Based Wireless Encryption and Decryption Message transfer system for Military Applications
- 1. RF Based Wireless Encryption and Decryption Message transfer system for Military Applications The need for this project arises when we want the data communication to be protected from others. This is highly essential in the military field and especially during war times. Because during war periods when a particular army wants to send a message to remotely located units, which belong to the same army, in between any person can trap the data when it is transmitted through wireless. Our aim of the project is to protect the data from the ensnares. To accomplish this, we have used a PC as a sender and PIC microcontroller as a receiver station. The message to be sent is fed in to the computer for different units. The computer will encode the data using generating a duplicate Character for a real one.
- 2. Encrypted message: At the receiving end the PIC microcontroller will then decode the Received data and displays the message on the display. The communication takes place through a Wireless RF Transmitter and Receiver operating at 433.92 MHz we can also use CRO at the transmitting point to view the encoded data. To ensure the security level at the receiving end we have a password protection. Once the Message is received the unit will give an alarm message so that one can know that the message has arrived. The he must enter the password through the keypad. If the password matches then he is allowed to view the data.
- 3. Block Diagram Transmitter Section RF Transmitter 434MHZ RS232
- 4. Receiver Section Digital RF Receiver Outputs 434MHZ PIC16F877 Microcontroller LCD Display +5V Power Supply Alarm Driver 4 X 3 Matrix Key Pad Visual Alert LED Alarm
- 5. Receiver Section Digital RF Receiver Outputs 434MHZ PIC16F877 Microcontroller LCD Display +5V Power Supply Alarm Driver 4 X 3 Matrix Key Pad Visual Alert LED Alarm
- 6. Receiver Section Digital RF Receiver Outputs 434MHZ PIC16F877 Microcontroller LCD Display +5V Power Supply Alarm Driver 4 X 3 Matrix Key Pad Visual Alert LED Alarm
- 7. Receiver Section Digital RF Receiver Outputs 434MHZ PIC16F877 Microcontroller LCD Display +5V Power Supply Alarm Driver 4 X 3 Matrix Key Pad Visual Alert LED Alarm