*/
using System;
-using System.Linq;
using System.Text;
using System.Collections.Generic;
+using System.Diagnostics.Contracts;
namespace Novacoin
{
- /// <summary>
- /// Block header
- /// </summary>
- public class CBlockHeader
+ /// <summary>
+ /// Block header
+ /// </summary>
+ public class CBlockHeader
{
/// <summary>
/// Version of block schema.
/// <summary>
/// Previous block hash.
/// </summary>
- public Hash256 prevHash = new Hash256();
+ public ScryptHash256 prevHash = new ScryptHash256();
/// <summary>
/// Merkle root hash.
public CBlockHeader(CBlockHeader h)
{
nVersion = h.nVersion;
- prevHash = new Hash256(h.prevHash);
+ prevHash = new ScryptHash256(h.prevHash);
merkleRoot = new Hash256(h.merkleRoot);
nTime = h.nTime;
nBits = h.nBits;
public CBlockHeader(byte[] bytes)
{
+ Contract.Requires<ArgumentException>(bytes.Length == 80, "Any valid block header is exactly 80 bytes long.");
+
nVersion = BitConverter.ToUInt32(bytes, 0);
- prevHash = new Hash256(bytes, 4);
+ prevHash = new ScryptHash256(bytes, 4);
merkleRoot = new Hash256(bytes, 36);
nTime = BitConverter.ToUInt32(bytes, 68);
nBits = BitConverter.ToUInt32(bytes, 72);
/// Convert current block header instance into sequence of bytes
/// </summary>
/// <returns>Byte sequence</returns>
- public IList<byte> Bytes
+ public static implicit operator byte[] (CBlockHeader h)
{
- get
- {
- List<byte> r = new List<byte>();
-
- r.AddRange(BitConverter.GetBytes(nVersion));
- r.AddRange(prevHash.hashBytes);
- r.AddRange(merkleRoot.hashBytes);
- r.AddRange(BitConverter.GetBytes(nTime));
- r.AddRange(BitConverter.GetBytes(nBits));
- r.AddRange(BitConverter.GetBytes(nNonce));
-
- return r;
- }
+ var r = new List<byte>();
+
+ r.AddRange(BitConverter.GetBytes(h.nVersion));
+ r.AddRange((byte[])h.prevHash);
+ r.AddRange((byte[])h.merkleRoot);
+ r.AddRange(BitConverter.GetBytes(h.nTime));
+ r.AddRange(BitConverter.GetBytes(h.nBits));
+ r.AddRange(BitConverter.GetBytes(h.nNonce));
+
+ return r.ToArray();
}
public ScryptHash256 Hash
{
get {
- return ScryptHash256.Compute256(Bytes);
+ return ScryptHash256.Compute256(this);
}
}
public override string ToString()
{
- StringBuilder sb = new StringBuilder();
+ var sb = new StringBuilder();
sb.AppendFormat("CBlockHeader(nVersion={0}, prevHash={1}, merkleRoot={2}, nTime={3}, nBits={4}, nNonce={5})", nVersion, prevHash.ToString(), merkleRoot.ToString(), nTime, nBits, nNonce);
return sb.ToString();
}