fn p256_verifying_key(
x: &[u8; 32],
y: &[u8; 32],
) -> Result<VerifyingKey, DpopError>Expand description
Builds a verifying key from raw coordinates, the same SEC1-uncompressed
route didbot_key::secp256r1::VerifyingKey::from_multibase takes – see
that module’s doc for why a key that arrives from elsewhere is judged
rather than normalized.