private static byte[] EncodeByteArray(RLPByteArray rlpBytes)
{
// If it's null
if (rlpBytes.Data.Length == 0)
{
return(new byte[] { 0x80 });
}
// If it's a single byte less than/equal to 128, the encoding is it's own value.
if (rlpBytes.Data.Length == 1 && rlpBytes.Data.Span[0] <= 0x7f)
{
return(rlpBytes.Data.ToArray());
}
// If it's between 0 and 55 bytes, we add a prefix that denotes length.
if (rlpBytes.Data.Length < 55)
{
return(new byte[] { (byte)(0x80 + rlpBytes.Data.Length) }.Concat(rlpBytes.Data.ToArray()));
}
// If it's more, we'll want to get the length of the data (as a possibly large integer)
int length = rlpBytes.Data.Length;
byte[] lengthData = EncodeLength(length);
// Return an array with our data
return(new[] { (byte)(0xb7 + lengthData.Length) }.Concat(lengthData, rlpBytes.Data.ToArray()));
}
public static BigInteger ToInteger(RLPByteArray rlpByteArray, int byteCount = 32, bool signed = false)
{
// If our data is null or empty, the result is 0.
if (rlpByteArray.Data.Length == 0)
{
return(0);
}
// Obtain our integer
return(BigIntegerConverter.GetBigInteger(rlpByteArray.Data.Span, signed, byteCount));
}