Wirelesss Data Encryptiion and Decryption using RF Communication

(Abstract)
In Todayâ„¢s Electronic communication take important role. Using todayâ„¢s Communication technology the data transmission and reception from one Place to another is easy and fast. But security is of some concern, for that we send the data by Encrypting. By the system named as Advanced Data Encryption using Microcontroller
.
In our project we have two sections, one is transmitter another one
Receiver, in transmitting section we have AT89C51 Microcontroller, Key pad and
an LCD. In receiver section we have another AT89C51Microcontroller and LCD
At the time when data will transfer from the transmitter a predefined code will be
Added with every eight bit data and when this data receive by the receiver this code
Will be decode by the receiver and generate the exact data that will be displayed
On LCD.
In this project Wireless Encoding and decoding are using one of the techniques
Called cipher text technique. Encryption is any procedure to convert plaintext into
Cipher text. Decryption is any procedure to convert cipher text into plaintext.

Hardware components:

¢ AT 89C51 Micro controllers, LCD, KEYPAD
Software tools:
¢ Kiel vision.
Advantages:
¢ The data secure is more while transferring data
¢ Used in data communication.
Applications:
¢ This system can be used for Military application for security.

¢ It can be used in Air craft applications.


BLOCK DIAGRAM:


TRANSMITTER RECEIVER