public void AddRequest(BlockConsensusRequest request, MinerWallet wallet)
{
lock (SyncRoot)
{
if (request.PrevHash != PrevHash)
{
return;
}
if (request.Miner == my_pubkey)
{
return;
}
if (NoncePieces.ContainsKey(request.Miner))
{
return;
}
byte[] aeskey = wallet.GetAesKey(request.Miner);
byte[] piece = request.NoncePieces[my_pubkey];
using (AesManaged aes = new AesManaged())
using (ICryptoTransform decryptor = aes.CreateDecryptor(aeskey, request.IV))
{
piece = decryptor.TransformFinalBlock(piece, 0, piece.Length);
}
Array.Clear(aeskey, 0, aeskey.Length);
NoncePieces.Add(request.Miner, new List <FiniteFieldPoint>());
NoncePieces[request.Miner].Add(FiniteFieldPoint.DeserializeFrom(piece));
NonceHashes.Add(request.Miner, request.NonceHash);
TransactionHashes.UnionWith(request.TransactionHashes);
action_request.CheckPredicate();
}
}
public void Reset()
{
if (PrevHash == Blockchain.Default.CurrentBlockHash)
{
return;
}
Random rand = new Random();
byte[] nonce = new byte[32];
rand.NextBytes(nonce);
lock (SyncRoot)
{
PrevHash = Blockchain.Default.CurrentBlockHash;
Miners = Blockchain.Default.GetMiners();
Nonces.Clear();
Nonces.Add(my_pubkey, new UInt256(nonce));
NonceHashes.Clear();
NonceHashes.Add(my_pubkey, new UInt256(nonce.Sha256()));
NoncePieces.Clear();
TransactionHashes.Clear();
TransactionHashes.UnionWith(Blockchain.Default.GetMemoryPool().Select(p => p.Hash));
index_me = Array.IndexOf(Miners, my_pubkey);
_request = null;
if (action_request != null)
{
action_request.Reset();
}
}
}
public BlockConsensusRequest CreateRequest(MinerWallet wallet)
{
lock (SyncRoot)
{
if (!Valid) throw new InvalidOperationException();
if (request == null)
{
request = new BlockConsensusRequest
{
PrevHash = PrevHash,
Miner = my_pubkey,
NonceHash = NonceHashes[my_pubkey],
TransactionHashes = TransactionHashes.ToArray()
};
SplitSecret secret = SecretSharing.Split(Nonces[my_pubkey].ToArray(), (Miners.Length - 1) / 2 + 1);
for (int i = 0; i < Miners.Length; i++)
{
if (Miners[i].Equals(my_pubkey)) continue;
byte[] aeskey = wallet.GetAesKey(Miners[i]);
byte[] iv = aeskey.Take(16).ToArray();
byte[] piece = secret.GetShare(i + 1).ToArray();
using (AesManaged aes = new AesManaged())
using (ICryptoTransform encryptor = aes.CreateEncryptor(aeskey, iv))
{
piece = encryptor.TransformFinalBlock(piece, 0, piece.Length);
}
Array.Clear(aeskey, 0, aeskey.Length);
Array.Clear(iv, 0, iv.Length);
request.NoncePieces.Add(Miners[i], piece);
}
}
return request;
}
}
private async Task SendConsensusRequestAsync()
{
if (!context.Valid)
{
return;
}
BlockConsensusRequest request = context.CreateRequest(wallet);
//TODO: 签名
//request.Script = wallet.Sign(request);
await localnode.RelayAsync(request);
}
private void LocalNode_NewInventory(object sender, Inventory inventory)
{
if (inventory.InventoryType != InventoryType.ConsRequest)
{
return;
}
BlockConsensusRequest request = (BlockConsensusRequest)inventory;
if (!request.Verify())
{
return;
}
context.AddRequest(request, wallet);
}
public BlockConsensusRequest CreateRequest(MinerWallet wallet)
{
lock (SyncRoot)
{
if (!Valid)
{
throw new InvalidOperationException();
}
if (_request == null)
{
_request = new BlockConsensusRequest
{
PrevHash = PrevHash,
Miner = my_pubkey,
IV = new byte[16],
NonceHash = NonceHashes[my_pubkey],
TransactionHashes = TransactionHashes.ToArray()
};
Random rand = new Random();
rand.NextBytes(_request.IV);
SplitSecret secret = SecretSharing.Split(Nonces[my_pubkey].ToArray(), (Miners.Length - 1) / 2 + 1);
for (int i = 0; i < Miners.Length; i++)
{
if (Miners[i].Equals(my_pubkey))
{
continue;
}
byte[] aeskey = wallet.GetAesKey(Miners[i]);
byte[] piece = secret.GetShare(i + 1).ToArray();
using (AesManaged aes = new AesManaged())
using (ICryptoTransform encryptor = aes.CreateEncryptor(aeskey, _request.IV))
{
piece = encryptor.TransformFinalBlock(piece, 0, piece.Length);
}
Array.Clear(aeskey, 0, aeskey.Length);
_request.NoncePieces.Add(Miners[i], piece);
}
}
return(_request);
}
}
public void AddRequest(BlockConsensusRequest request, MinerWallet wallet)
{
lock (SyncRoot)
{
if (request.PrevHash != PrevHash) return;
if (request.Miner == my_pubkey) return;
if (NoncePieces.ContainsKey(request.Miner)) return;
byte[] aeskey = wallet.GetAesKey(request.Miner);
byte[] piece = request.NoncePieces[my_pubkey];
using (AesManaged aes = new AesManaged())
using (ICryptoTransform decryptor = aes.CreateDecryptor(aeskey, request.IV))
{
piece = decryptor.TransformFinalBlock(piece, 0, piece.Length);
}
Array.Clear(aeskey, 0, aeskey.Length);
NoncePieces.Add(request.Miner, new List<FiniteFieldPoint>());
NoncePieces[request.Miner].Add(FiniteFieldPoint.DeserializeFrom(piece));
NonceHashes.Add(request.Miner, request.NonceHash);
TransactionHashes.UnionWith(request.TransactionHashes);
action_request.CheckPredicate();
}
}
public void Reset()
{
if (PrevHash == Blockchain.Default.CurrentBlockHash)
return;
Random rand = new Random();
byte[] nonce = new byte[32];
rand.NextBytes(nonce);
lock (SyncRoot)
{
PrevHash = Blockchain.Default.CurrentBlockHash;
Miners = Blockchain.Default.GetMiners();
Nonces.Clear();
Nonces.Add(my_pubkey, new UInt256(nonce));
NonceHashes.Clear();
NonceHashes.Add(my_pubkey, new UInt256(nonce.Sha256()));
NoncePieces.Clear();
TransactionHashes.Clear();
TransactionHashes.UnionWith(Blockchain.Default.GetMemoryPool().Select(p => p.Hash));
index_me = Array.IndexOf(Miners, my_pubkey);
_request = null;
if (action_request != null)
action_request.Reset();
}
}
