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c# pow implementation work

master
Kevin Froman 2020-09-23 21:21:43 +00:00
parent 843f1c1a8e
commit 02cdbc75ce
2 changed files with 58 additions and 27 deletions
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4
pow-csharp/onionrpow-cli/Program.cs
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@ -12,6 +12,8 @@ namespace onionrpow_cli
static void Main(string[] args)
{
TimeSpan t = DateTime.UtcNow - new DateTime(1970, 1, 1);
int secondsSinceEpoch = (int)t.TotalSeconds;
using (Stream stdin = Console.OpenStandardInput())
{
var data = new List<byte>();
@ -23,6 +25,8 @@ namespace onionrpow_cli
}
onionrpow.OnionrPow.compute(data.ToArray(), 2);
}
TimeSpan t2 = DateTime.UtcNow - new DateTime(1970, 1, 1);
Console.WriteLine((int)t2.TotalSeconds - secondsSinceEpoch);
}
}
}

81
pow-csharp/onionrpow/OnionrPow.cs
View File

@ -2,6 +2,7 @@
using System.Text;
using System.Linq;
using System.Collections.Generic;
using System.Security.Cryptography;
using Newtonsoft.Json;
using SHA3;
@ -29,6 +30,7 @@ namespace onionrpow
{
public static void compute(byte[] data, int difficulty){
using (var shaAlg = SHA3.Net.Sha3.Sha3256())
//using (SHA256 shaAlg = SHA256.Create())
{
string stringData = Encoding.UTF8.GetString(data);
bool found = false;
@ -54,41 +56,66 @@ namespace onionrpow
block.n = new Random().Next(10000);
block.c = 0;
metadataJson.Clear();
metadataJson.AddRange(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(block)));
int location = Encoding.UTF8.GetString(metadataJson.ToArray()).IndexOf("\"c\":");
var metadata1 = new List<byte>();
var metadata2 = new List<byte>();
var countKey = new List<byte>();
countKey.AddRange(Encoding.UTF8.GetBytes("\"c\":"));
bool afterNum = false;
for (int i = location + 4; i < metadataJson.Count; i++){
if (!afterNum && ((char) metadataJson[i]).Equals(',')){
afterNum = true;
continue;
}
if (afterNum){
metadata2.Add(metadataJson[i]);
}
}
for (int i = 0; i < location; i++){
metadata1.Add(metadataJson[i]);
}
var preCompiled = new List<byte>();
preCompiled.AddRange(metadata1);
preCompiled.AddRange(countKey);
int powCounter = 0;
var justDataArray = justData.ToArray();
justData.Clear();
var encoded = new List<byte>();
int calculatedDifficulty = 0;
var nl = Encoding.UTF8.GetBytes("\n")[0];
int difficultyCounter = 0;
while(true){
encoded.Clear();
encoded.AddRange(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(block)));
// TODO keep nl and dataarray in
encoded.Add(nl);
encoded.AddRange(justDataArray);
var encodedArray = encoded.ToArray();
calculatedDifficulty = 0;
foreach(char c in shaAlg.ComputeHash(encodedArray)){
if (c == 0){
calculatedDifficulty += 1;
if (calculatedDifficulty == difficulty){
Console.WriteLine(counter);
Console.WriteLine(Encoding.UTF8.GetString(encodedArray));
Console.WriteLine(BitConverter.ToString(shaAlg.ComputeHash(encodedArray)));
var compiled = preCompiled.ToList();
compiled.AddRange(metadata1);
compiled.AddRange(Encoding.UTF8.GetBytes(powCounter.ToString()));
compiled.AddRange(metadata2);
compiled.AddRange(justDataArray);
var hash = shaAlg.ComputeHash(compiled.ToArray());
foreach (byte b in hash){
if (b == 0){
difficultyCounter += 1;
if (difficultyCounter == difficulty){
Console.WriteLine(powCounter);
Console.WriteLine(BitConverter.ToString(hash));
goto powDone;
}
continue;
}
else{
break;
}
difficultyCounter = 0;
break;
}
block.c += 1;
//Console.WriteLine(powCounter);
powCounter += 1;
}
//Console.WriteLine(location);
//Console.WriteLine(Encoding.UTF8.GetString(metadataJson.ToArray()));
}
powDone:;
}