Hi there I'm wonder if someone could help me please, I have a project which I need to complete which has two arduino's that transmits encrypted data between each other wirelessly. Could someone please give me some details on what they recommend and how I should go about making it function. My plan would be to have an RFID tag which is then encrypted and sent wirelessly to the receiver, which will be decrypted to allow for secure authentication. i have never used arduino before and i would really appreciate it if someone could give me some guidance on steps to take.
First you decide what transmitter / receiver system you want to buy. The you buy it.
Next look at the example code / tutorials for using this particular system.
The test it out and finally transmit your encrypted data instead of normal data.
For a more detailed response then be more specific about your question.
Ashley2708:
I have a project which I need to completewhich has two arduino's that transmits encrypted data between each other wirelessly.
i have never used arduino before
Sounds like a school project.
What distance.
Then you must first go through the initiation process.
Play with LEDs, switches, etc. with the examples from the IDE.
If you don't, your project is doomed to fail.
After that you can try to read an RFID tag, and dispaly it on the serial monitor,
before thinking of encrypting and transmitting it to a terminal.
Leo..
This Simple nRF24L01+ Tutorial may be of interest.
The nRF24 modules have no idea what they transmit - it's all bytes to them. So you can start with unencrypted messages and just change the message content when you have it working.
...R
Thank you guys for your comments , yes its a project i have for school , i think i have chosen good parts but i think my difficulty would be implementing them to function. I have 2 months to complete such task 
, i'm starting to feel like it would be impossible. i will begin by ordering a kit to get use to the setup and take things from there