After soaking for a bit on the adverts without issue on multiple nodes,
I added more hardware crypto.
Supported nodes is unchanged in this PR addition, but if others can verify,
they can easily be added.
Some info on the CC310: https://docs.nordicsemi.com/r/bundle/ps_nrf9151/page/cryptocell.html
**Added:**
- AES-128 packet encryption/decryption now use hardware crypto
- HMAC-SHA-256 authentication now uses hardware crypto
- ACK hash computation and channel ID derivation now use hardware crypto
- RNG (random number generator) now uses hardware crypto rather than
radio noise + weak software RNG (which can have issues if there's
no surrounding radio noise.) NIST SP 800-90B certified.
- Runs hardware self-tests on startup
- Runs continuous health tests during operation
- Uses thermal noise/shot noise for randomness
**Unchanged:**
- calcSharedSecret remains software - it would be a split hw/sw solution
and added complexity for likely not a lot of gains. This only happens
when establishing a new contact, so not too frequent to be worth it.
- ed25519_create_keypair remains software. This is only called when a
node is first initialized. It does use the hardware RNG change, however,
so better randomization.
Tested on (so far):
- Heltec t096
Build test on:
- Heltec t096 companion ble
- t1000e companion ble
- RAK 4631 repeater
- RAK 3401 companion BLE
- Heltec v3 companion wifi
1. warm sleep
2. wake to stdby
3. Calibrate(0x7F) to reset all internal blocks
4. re-apply DIO2 RF / boosted gain & register patch to make sure
everything is as it was
This change counts when readData returns an err code other than RADIOLIB_ERR_NONE. In most cases this is going to be a CRC error. This counter is exposed in the `stats-packets` command, and in the repeater stats payload (4 additional bytes to the payload, which is now 56 bytes with this change. My incompetent robot claims the total payload size is 96 bytes (unverified but probably close).
This should significantly reduce power consumption in hibernation.
Fixes: #1014
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
Signed-off-by: Frieder Schrempf <frieder@fris.de> # generalize for all radios and UIs
Florent
taco
NickDunkleeandGitHub
Nick Dunklee
Wessel Nieboer
Scott Powell
OverkillFPVandGitHub
João Brázio
Chris
Jaroslav ŠkarvadaandFrieder Schrempf
recrof