decode function
Implementation
Map<String, Uint8List> decode(
int tagSize, int ivSize, Uint8List encodedMessage) {
return {
'tag': encodedMessage.sublist(0, tagSize),
'initializationVector': encodedMessage.sublist(tagSize, tagSize + ivSize),
'encodedMessageData': encodedMessage.sublist(tagSize + ivSize)
};
}