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--- proiecte:encrypted-communication [2017/01/23 21:12]
veronica.velciu [Encrypted communication]
+++ proiecte:encrypted-communication [2017/01/23 22:30] (current)
veronica.velciu [Resources]
@@ Line 106: / Line 106: @@
   - Continue reading byte by byte until the payload is received.
   - Receive the checksum and check it.
   - Decrypt the message by using **decryptECB** with the give key and save the plain text to the user data structure.
+**Testing the encrypted communication**
+In order to demonstrate the implemented functionality, I created three Arduino projects:
+  * **EncTransmitter**: Sends encrypted messages using the **sendEncData** function and a hard-coded key.
+  * **EncReceiver**: Receives encrypted messages using the **receiveEncData** function and the same key.
+  * **BadReceiver**: "The bad guy" - Tries to listen to what the other two nodes talk. Receives messages using the **receiveData** function, as he does not know the secret key.
+{{ :proiecte:enc-comm.jpg?800 | Encrypted communication}}
 ===== Results =====
+The below picture shows the output of the implemented project. In the upper left corner you can see the output of **EncTransmitter** and in the upper right the output of **EncReceiver**. Below them is the attacker, represented by the **BadReceiver** project.
+{{ :proiecte:enc-comm-demo.png?1200 |}}
 ===== Resources =====
+  * AES library implementation: {{:proiecte:aes.zip|}}
+  * AES library tests: {{:proiecte:aes_test.zip|}}
+  * Modified SparrowRadio library: {{:proiecte:sparrowradio.zip|}}
+  * **EncTransmitter**, **EncReceiver** and **BadReceiver**: {{:proiecte:enccommunication.zip|}}

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