I'd like to send sensor values over ethernet shield to a webserver. But for this I'd like to encrypt the data on the arduino and decrypt it on the webserver (PHP). Do you have any suggestions or examples?
XTEA is probably your best bet. It's lightweight, easy to implement, and secure enough for a bit of sensor data... There's also the slightly more complex, and also slightly more secure, XXTEA: |
|||
|