encode method
Implementation
Uint8List encode(ct.PublicKey recipientPublicKey, Uint8List message) {
final result =
encodeAesGcm(deriveSharedKey, keyPair, recipientPublicKey, message);
return concatArrays([
Uint8List.fromList([1]),
result['tag'],
result['initializationVector'],
result['cipherText']
]);
}