The available backends for the nrf_crypto frontend are explained in the following pages.
Cifra backend
mbed TLS backend
micro_ecc backend
nrf_cc310 backend
nrf_cc310_bl backend
nRF HW backend
nrf_oberon backend
nRF software backend
OPTIGA™ backend
For a list of default nrf_crypto backends used in the examples, see Default backends for examples using nrf_crypto.