Nordic is the leader in BTLE and most recently with the nRF52 series and the introduction of BTLE 5
Security is “baked in” to Nordic Solutions and is enhanced with capabilities such as:
– Read/Write protection in flash on silicon
– Firmware is securely in internal flash
– Hardware accelerators – AES ECB CCM
– SoftDevices support BT 4.2 security
OOB (NRF52 NFC on silicon)
Passkey entry
LE secure connections
– nRF52840 – ARM (R) CyptoCell
https://developer.arm.com/products/system-ip/trustzone-security-ip
