deserialize method
Interface for intput serialization.
Implementation
@override
void deserialize(SerializableInput input) {
keytype = deserializeString(input);
if (!keytype.startsWith('ecdsa-sha2-')) throw FormatException('$keytype');
keyTypeId = Key.id(keytype);
if (!Key.ellipticCurveDSA(keyTypeId)) throw FormatException();
curveName = deserializeString(input);
q = deserializeStringBytes(input);
d = deserializeMpInt(input);
comment = deserializeString(input);
}