It looks like the stable geniuses in the Bluetooth SIG invented the novel concept of static salt. Never saw that many half assed KDF in a single standard #cryptography #security www.bluetooth.com/wp-content/u...
bluetooth.com
Part H Security Manager Specification
The Security Manager (SM) defines the protocol and behavior to manage pairing, authentication, and encryption between LE-only or BR/EDR/LE devices.