stringTextToListHex function
Implementation
List stringTextToListHex(String string) {
/// The plaintext is converted to hexadecimal and then divided into large parts in BigInt.
List listDec = string.runes.toList();
List listHex = [
for (int a = 0; a < listDec.length; a++) listDec[a].toRadixString(16)
];
return bigIntHexList(listHex);
}