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jeelabs / jeelib

JeeLib for Arduino IDE: Ports, RF12, and RF69 drivers from JeeLabs
https://jeelabs.org/202x/sw/jeelib/
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encryption for RF69_COMPAT #100

Open ghost opened 7 years ago

ghost commented 7 years ago

rf12_encrypt(KEY) is working fine when using rf12 modules (without RF69_COMPAT). When using rfm69cw modules with RF69_COMPAT sending and receiving is working fine but the encryption is just ignored (seems to be not implemented). Any ideas?

jcw commented 7 years ago

Ah, that's probably a bug - with the RF12 driver, an XTEA-based software implementation is used, whereas the RF69 driver uses built-in h/w AES for native mode. I suspect that the compat mode has never been used or implemented.

ghost commented 7 years ago

Is it possible to use this library in native mode - without the RF69_COMPAT flag (when every module in my network is using the rfm69cw) and enable encryption? As I cannot find any examples / implementations for that.

jcw commented 7 years ago

Whoops, had a better look - you're right, the Arduino/JeeLib version of RF69 does not support encryption in native mode either.

I can not fix this right now - if you're willing to wait until end of next week, I can have a go at either bringing the RF12 encryption logic into the RF69 compat mode driver, or enabling the AES mode in the native version (I'm not sure at this point which will be easier).

ghost commented 7 years ago

Sure :-) Thank you.

ghost commented 7 years ago

Any news?

FullyScaled commented 7 years ago

Currently having the same problem. Any chance you will invest time into this in the near future?

jcw commented 7 years ago

I'm afraid that won't happen any day soon (at least not by me), despite my earlier promise. It's been quite a while since I worked on the RF12 and RF69 compatibility code in JeeLib.

JohnOH commented 7 years ago

It might be interesting to remove line 32 from RF69_compat.h in jeelib. #define rf12_encrypt rf69_encrypt Not tested it and no guarantees!

JohnOH commented 7 years ago

On second thoughts that would work on the wrong buffer and thereby not achieve the objective.