toBytesPadded function
Implementation
List<int> toBytesPadded(BigInt value, int length) {
List<int> bytes = encodeBigInt(value, endian: Endian.big);
if (bytes.length > length) {
throw ('Input is too large to put in byte array of size ${length.toString()}');
}
var result = List<int>.filled(length, 0);
var offset = length - bytes.length;
for (var i = 0; i < length; i++) {
result[i] = i < offset ? 0 : bytes[i - offset];
}
return result;
}