create method Null safety
Create a new RsaKeyPair and save its public key in object storage.
Implementation
Future<KeyModel> create() async {
RsaKeyPair rsaKeyPair = await Rsa.generateAsync();
Uint8List address = Digest("SHA3-256").process(rsaKeyPair.publicKey.bytes);
KeyModel keys = KeyModel(
address,
rsaKeyPair.privateKey,
);
_repository.save(keys);
return keys;
}