tree c67d9808af8d276eaa5f92a021ae17d129cd5124
parent 168ed65483a1777c2570f4c0a4a64e20a823cf25
author Tudor Ambarus <tudor.ambarus@microchip.com> 1506608095 +0300
committer Marcel Holtmann <marcel@holtmann.org> 1507314947 +0200

Bluetooth: let the crypto subsystem generate the ecc privkey

That Bluetooth SMP knows about the private key is pointless, since the
detection of debug key usage is actually via the public key portion.
With this patch, the Bluetooth SMP will stop keeping a copy of the
ecdh private key and will let the crypto subsystem to generate and
handle the ecdh private key, potentially benefiting of hardware
ecc private key generation and retention.

The loop that tries to generate a correct private key is now removed and
we trust the crypto subsystem to generate a correct private key. This
backup logic should be done in crypto, if really needed.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>