Change HKDF return type from string to arrayBuffer (#204)
Change HKDF return type from string to arrayBuffer (#204)


joshmh/lamassu-server,joshmh/lamassu-server,lamassu/lamassu-server,lamassu/lamassu-server,joshmh/lamassu-server,naconner/lamassu-server,joshmh/lamassu-server,naconner/lamassu-server,naconner/lamassu-server,lamassu/lamassu-server