Calculates and returns the signature for data using the given private key and
algorithm. If algorithm is null or undefined, then the algorithm is
dependent upon the key type (especially Ed25519 and Ed448).
If key is not a KeyObject, this function behaves as if key had been
passed to createPrivateKey. If it is an object, the following
additional properties can be passed:
If the callback function is provided this function uses libuv's threadpool.
Calculates and returns the signature for
datausing the given private key and algorithm. Ifalgorithmisnullorundefined, then the algorithm is dependent upon the key type (especially Ed25519 and Ed448).If
keyis not aKeyObject, this function behaves as ifkeyhad been passed to createPrivateKey. If it is an object, the following additional properties can be passed:If the
callbackfunction is provided this function uses libuv's threadpool.