/// <summary>
/// Uses the checksum in the last 4 bytes of the decoded data to verify the rest are correct. The checksum is removed from the returned data.
/// </summary>
/// <exception cref="AddressFormatException">If the input is not base 58 or the checksum does not validate.</exception>
public byte[] DecodeChecked(string input)
{
var tmp = Decode(input);
if (tmp.Length < 4)
{
throw new AddressFormatException("Input too short");
}
var checksum = new byte[4];
Array.Copy(tmp, tmp.Length - 4, checksum, 0, 4);
var bytes = new byte[tmp.Length - 4];
Array.Copy(tmp, 0, bytes, 0, tmp.Length - 4);
tmp = DoubleDigestSha256Helper.DoubleDigest(bytes);
var hash = new byte[4];
Array.Copy(tmp, 0, hash, 0, 4);
if (!hash.SequenceEqual(checksum))
{
throw new AddressFormatException("Checksum does not validate");
}
return(bytes);
}
/////throws ClassNotFoundException, IOException
//private void readObject(ObjectInputStream ois)
//{
// ois.defaultReadObject();
// // This code is not actually necessary, as transient fields are initialized to the default value which is in
// // this case null. However it clears out a FindBugs warning and makes it explicit what we're doing.
// hash = null;
//}
private void parseHeader()
{
if (headerParsed)
{
return;
}
Cursor = Offset;
Version = ReadUint32();
PreviousBlockHash = ReadHash();
MerkleRoot = ReadHash();
TimeSeconds = ReadUint32();
difficultyTarget = ReadUint32();
nonce = ReadUint32();
hash = new Sha256Hash(DoubleDigestSha256Helper.DoubleDigest(Bytes, Offset, Cursor).ReverseBytes());
headerParsed = true;
headerBytesValid = ParseRetain;
}