public IEnumerable <Block> Decode(byte[] data)
{
byte[] encryptData = new byte[256];
byte[] bigEndianData = null;
using (MemoryStream rawStream = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(rawStream))
{
encryptData = reader.ReadBytes(256);
bigEndianData = reader.ReadBytes((int)reader.BaseStream.Length - encryptData.Length);
}
}
var decryptKey = key.RSA.Decrypt(encryptData, false);
var decrypt = Aes256.Decode(bigEndianData, Aes256.GetString(decryptKey));
MemoryStream stream = new MemoryStream(decrypt);
List <Block> blocks = new List <Block>();
Dictionary <string, object> blockKeyValuePairs = new Dictionary <string, object>();
try
{
using (BinaryReader reader = new BinaryReader(stream))
{
while (reader.BaseStream.Position <= reader.BaseStream.Length)
{
blockKeyValuePairs["index"] = reader.ReadInt32();
blockKeyValuePairs["hash"] = reader.ReadString();
blockKeyValuePairs["merkleroot"] = reader.ReadString();
blockKeyValuePairs["previousHash"] = reader.ReadString();
blockKeyValuePairs["stamp"] = reader.ReadInt64();
blockKeyValuePairs["count"] = reader.ReadInt32();
List <Transaction> list = new List <Transaction>();
for (int i = 0; i < (int)blockKeyValuePairs["count"]; i++)
{
blockKeyValuePairs["tx_hash"] = reader.ReadString();
var tx = subscribe.GetTransactionAsync(
HexString.Parse((string)blockKeyValuePairs["tx_hash"])
.ToByteArray()).Result;
list.Add(tx);
}
blocks.Add(new Block(HexString.Parse((string)blockKeyValuePairs["hash"]),
HexString.Parse((string)blockKeyValuePairs["previousHash"]),
DateTime.FromBinary((long)blockKeyValuePairs["stamp"]),
(int)blockKeyValuePairs["index"],
HexString.Parse((string)blockKeyValuePairs["merkleroot"]),
list
));
}
}
}
catch (EndOfStreamException)
{
}
return(blocks.AsEnumerable());
}
public static Block CreateGenesis()
{
List <Transaction> list = new List <Transaction>();
GenesisBlock = new Block(new HexString(HexString.Parse("00").ToByteArray()),
new HexString(HexString.Parse("00").ToByteArray()),
DateTime.UtcNow, 1, new HexString(HexString.Parse("00").ToByteArray()), list);
string jsondata = JsonConvert.SerializeObject(GenesisBlock);
string path = "/DataChain/Genesis/";
DirectoryInfo dirInfo = new DirectoryInfo(path);
if (!dirInfo.Exists)
{
dirInfo.Create();
}
File.WriteAllText(path + "genesis.json", jsondata);
return(GenesisBlock);
}