A PCD wrapper for one operation of the HaLo (Hardware Locked) tags from Arx Research,
ttps://github.com/arx-research/libhalo/blob/master/docs/halo-command-set.md#command-sign_random).
This is an operation in which the private key in slot #2 of the HaLo tag produces
an secp256k1 ECDSA signature of an incrementing nonce concatenated with a random string.
The nonce is incremented by the HaLo tag after each signature operation.
A PCD wrapper for one operation of the HaLo (Hardware Locked) tags from Arx Research, ttps://github.com/arx-research/libhalo/blob/master/docs/halo-command-set.md#command-sign_random). This is an operation in which the private key in slot #2 of the HaLo tag produces an secp256k1 ECDSA signature of an incrementing nonce concatenated with a random string. The nonce is incremented by the HaLo tag after each signature operation.