public bool Mine(Block block, byte dificulty)
{
block.MinerPublicKey = publicKey;
block.Dificulty = dificulty;
var data = block.GetData();
stop = false;
while (!stop)
{
using (var sha256 = new SHA256Managed())
{
sha256.Initialize();
block.Hash = sha256.ComputeHash(data);
}
var first = Array.FindIndex(block.Hash, b => b != 0);
if (first >= dificulty)
{
return(true);
}
block.Nonce++;
Buffer.BlockCopy(BitConverter.GetBytes(block.Nonce), 0, data, data.Length - 4, 4);
//Thread.Sleep(1);
}
return(false);
}
private static BigInteger Hash(params BigInteger[] integers)
{
using (var sha256 = new SHA256Managed())
{
sha256.Initialize();
for (int i = 0; i < integers.Length; i++)
{
byte[] buffer = integers[i].ToByteArray(true);
int padding = buffer.Length % 4;
if (padding != 0)
{
Array.Resize(ref buffer, buffer.Length + (4 - padding));
}
if (i == integers.Length - 1)
{
sha256.TransformFinalBlock(buffer, 0, buffer.Length);
}
else
{
sha256.TransformBlock(buffer, 0, buffer.Length, null, 0);
}
}
byte[] hash = sha256.Hash;
ReverseBytesAsUInt32(hash);
return(new BigInteger(hash, true));
}
}
public static void Fill(ConcurrentDictionary <string, ConcurrentBag <File> > files, string path,
Func <string, File> factory, Progress pg)
{
var sha = new SHA256Managed();
sha.Initialize();
List <string> list = Directory.EnumerateFiles(path, "*", SearchOption.AllDirectories).ToList();
int count = list.Count;
int n = 0;
Console.Error.WriteLine("\r" + count + " files in " + path);
foreach (var file in list)
{
byte[] hashBytes = sha.ComputeHash(System.IO.File.OpenRead(file));
string hash = BitConverter.ToString(hashBytes).Replace("-", "");
files.AddOrUpdate(hash, h => new ConcurrentBag <File> {
factory(file)
}, (h, l) =>
{
l.Add(factory(file));
return(l);
});
pg.Report(++n, count);
}
}
public string StoreData(byte[] data, string extension = null)
{
var hasher = new SHA256Managed();
hasher.Initialize();
string hash = null;
using (hasher)
{
hash = HexTools.ByteArrayToHexString(hasher.ComputeHash(data));
var targetPath = BuildPath(hash, extension);
if (_storage.Exists(targetPath))
{
return(null);
}
var directory = Path.GetDirectoryName(targetPath);
_storage.CreateFolder(directory);
var file = _storage.Open(targetPath);
using (file)
{
file.Write(data, 0, data.Length);
}
}
return(hash);
}
//Creates and returns new User by Email
public async Task <pix_dtmodel.Models.User> CreateNewUser(string email, string hashPass, string uname)
{
//Create model
pix_dtmodel.Models.User usr = new pix_dtmodel.Models.User();
//Make a hasher
SHA256 hasher = new SHA256Managed();
hasher.Initialize(); //Init the csp
//hash email for use in the UID
byte[] hashedBytes = hasher.ComputeHash(Encoding.ASCII.GetBytes(email));
//Use bit Converter to get hash string
string hashString = BitConverter.ToString(hashedBytes).Replace("-", String.Empty);
//Set fields
usr.Uid = "USR" + hashString;
//Check backend for duplicates
if (userSession.GetRecordById(usr.Uid).Result != null)
{
//If query that returned a result than the user is taken return error
return(null);
}
//Always store email in lowercase
usr.Email = email.ToLower();
//Always store username in lowercase
usr.Username = uname.ToLower();
//Contact google boi
FirebaseAuthLink tempLink = await auth.CreateUserWithEmailAndPasswordAsync(email, hashPass, uname, true);
//Now we've issued a request to create a new account using the hashed password, email and then a verification email will hopefully be issued out.
usr.TimeLeft = tempLink.ExpiresIn + ""; //Expirary Date, refresh token when this gets too low.
//apply token.
usr.Token = tempLink.FirebaseToken;
//set hash
usr.HashWord = hashPass.Replace("-", String.Empty);
//set Google id.
usr.Gid = tempLink.User.LocalId;
//Finally add to dbase
userSession.Add(usr);
//debug line
Console.WriteLine("User " + uname + " expires in " + usr.TimeLeft);
//cleanup?
hasher.Clear();
hashedBytes = null;
hashString = null;
return(usr);
}
public byte[] GetData()
{
var transactions = GetTransactions();
var data = new byte[32 * transactions.Length + MinerPublicKey.Length + 4 + 1];
var offset = 0;
foreach (var transaction in transactions)
{
byte[] hash;
var td = transaction.GetData();
using (var sha256 = new SHA256Managed())
{
sha256.Initialize();
hash = sha256.ComputeHash(td);
}
Buffer.BlockCopy(hash, 0, data, offset, 32);
offset += 32;
}
Buffer.BlockCopy(MinerPublicKey, 0, data, offset, MinerPublicKey.Length);
offset += MinerPublicKey.Length;
Buffer.BlockCopy(BitConverter.GetBytes(Nonce), 0, data, offset, 4);
offset += 4;
data[offset] = Dificulty;
return(data);
}
internal static byte[] CreateSaltedHash(byte[] password, byte[] salt, Int32 hashIterations)
{
// Seed for the pseudo-random fcn: salt + block index.
byte[] saltAndIndex = new byte[salt.Length + BLOCK_INDEX];
Array.Copy(salt, 0, saltAndIndex, 0, salt.Length);
byte[] hashOutput = new byte[BLOCK_COUNT * SHA2_256_HASH_SIZE_IN_BYTES];
int hashOutputOffset = 0;
SHA256Managed hashInner = new SHA256Managed();
SHA256Managed hashOuter = new SHA256Managed();
// For HMAC the key must be hashed or padded with zeros so
// that it fits into a single block of the hash algorithm being used.
if (password.Length > SHA2_256_BLOCK_SIZE_IN_BYTES)
{
password = hashInner.ComputeHash(password);
}
byte[] key = new byte[SHA2_256_BLOCK_SIZE_IN_BYTES];
Array.Copy(password, 0, key, 0, password.Length);
byte[] keyInner = new byte[SHA2_256_BLOCK_SIZE_IN_BYTES];
byte[] keyOuter = new byte[SHA2_256_BLOCK_SIZE_IN_BYTES];
for (Int32 i = 0; i < SHA2_256_BLOCK_SIZE_IN_BYTES; i++)
{
keyInner[i] = (byte)(key[i] ^ INNER_HASH_PADDING);
keyOuter[i] = (byte)(key[i] ^ OUTER_HASH_PADDING);
}
// For each block of desired output...
for (Int32 hashBlock = 0; hashBlock < BLOCK_COUNT; hashBlock++)
{
// Seed HMAC with salt & block index.
IncrementInteger(saltAndIndex, salt.Length);
byte[] hmacResult = saltAndIndex;
for (Int32 i = 0; i < hashIterations; i++)
{
// Simple implementation of HMAC-SHA2-256.
hashInner.Initialize();
hashInner.TransformBlock(keyInner, 0, SHA2_256_BLOCK_SIZE_IN_BYTES, keyInner, 0);
hashInner.TransformFinalBlock(hmacResult, 0, hmacResult.Length);
byte[] temp = hashInner.Hash;
hashOuter.Initialize();
hashOuter.TransformBlock(keyOuter, 0, SHA2_256_BLOCK_SIZE_IN_BYTES, keyOuter, 0);
hashOuter.TransformFinalBlock(temp, 0, temp.Length);
hmacResult = hashOuter.Hash;
// XOR result into output buffer.
XorByteArray(hmacResult, 0, hashOutput, hashOutputOffset);
}
hashOutputOffset += SHA2_256_HASH_SIZE_IN_BYTES;
}
byte[] result = new byte[SHA2_256_HASH_SIZE_IN_BYTES];
Array.Copy(hashOutput, 0, result, 0, SHA2_256_HASH_SIZE_IN_BYTES);
return(result);
}
public static string SHA256(string input)
{
if (!init)
{
sha.Initialize();
}
byte[] hash = sha.ComputeHash(Encoding.ASCII.GetBytes(input));
return(BitConverter.ToString(hash).Replace("-", ""));
}
private string Sha256Hash(string rawString)
{
var rawStringBytes = Encoding.Unicode.GetBytes(rawString);
var hashProvider = new SHA256Managed();
hashProvider.Initialize();
rawStringBytes = hashProvider.ComputeHash(rawStringBytes);
hashProvider.Clear();
return(Convert.ToBase64String(rawStringBytes));
}
public static string HashPassword(string password)
{
Byte[] passwordBytes = Encoding.Unicode.GetBytes(password);
SHA256Managed hashProvider = new SHA256Managed();
hashProvider.Initialize();
passwordBytes = hashProvider.ComputeHash(passwordBytes);
hashProvider.Clear();
return(Convert.ToBase64String(passwordBytes));
}
public static string CalculateFingerprintHash(string fingerprint)
{
SHA256Managed sh = new SHA256Managed();
byte[] request = UTF8Encoding.UTF8.GetBytes(fingerprint);
sh.Initialize();
byte[] hash = sh.ComputeHash(request, 0, request.Length);
return(Convert.ToBase64String(hash));
}
public static void SequenceHash()
{
byte[] data = { 1, 2, 3, 5, 8, 13 };
using var alg = new SHA256Managed();
var hash = new byte[alg.HashSize / 8];
using var builder = new HashBuilder(alg);
builder.Add(new ChunkSequence <byte>(data, 3).ToReadOnlySequence());
Equal(alg.HashSize / 8, builder.Build(hash));
alg.Initialize();
Equal(hash, alg.ComputeHash(data));
}
private static byte[] GetBytes(byte[] password, byte[] salt, int iterations, int howManyBytes)
{
// round up
uint cBlocks = (uint)((howManyBytes + HASH_SIZE_IN_BYTES - 1) / HASH_SIZE_IN_BYTES);
// seed for the pseudo-random fcn: salt + block index
byte[] saltAndIndex = new byte[salt.Length + 4];
Array.Copy(salt, 0, saltAndIndex, 0, salt.Length);
byte[] output = new byte[cBlocks * HASH_SIZE_IN_BYTES];
int outputOffset = 0;
SHA256Managed innerHash = new SHA256Managed();
SHA256Managed outerHash = new SHA256Managed();
// HMAC says the key must be hashed or padded with zeros
// so it fits into a single block of the hash in use
if (password.Length > BLOCK_SIZE_IN_BYTES)
{
password = innerHash.ComputeHash(password);
}
byte[] key = new byte[BLOCK_SIZE_IN_BYTES];
Array.Copy(password, 0, key, 0, password.Length);
byte[] InnerKey = new byte[BLOCK_SIZE_IN_BYTES];
byte[] OuterKey = new byte[BLOCK_SIZE_IN_BYTES];
for (int i = 0; i < BLOCK_SIZE_IN_BYTES; ++i)
{
InnerKey[i] = (byte)(key[i] ^ IPAD);
OuterKey[i] = (byte)(key[i] ^ OPAD);
}
// for each block of desired output
for (int iBlock = 0; iBlock < cBlocks; ++iBlock)
{
// seed HMAC with salt & block index
_incrementBigEndianIndex(saltAndIndex, salt.Length);
byte[] U = saltAndIndex;
for (int i = 0; i < iterations; ++i)
{
// simple implementation of HMAC-SHA-256
innerHash.Initialize();
innerHash.TransformBlock(InnerKey, 0, BLOCK_SIZE_IN_BYTES, InnerKey, 0);
innerHash.TransformFinalBlock(U, 0, U.Length);
byte[] temp = innerHash.Hash; outerHash.Initialize();
outerHash.TransformBlock(OuterKey, 0, BLOCK_SIZE_IN_BYTES, OuterKey, 0);
outerHash.TransformFinalBlock(temp, 0, temp.Length);
U = outerHash.Hash;
// U = result of HMAC
// xor result into output buffer
_xorByteArray(U, 0, HASH_SIZE_IN_BYTES, output, outputOffset);
}
outputOffset += HASH_SIZE_IN_BYTES;
}
byte[] result = new byte[howManyBytes];
Array.Copy(output, 0, result, 0, howManyBytes);
return result;
}
public static void HashBuilding()
{
byte[] data = { 1, 2, 3 };
using var alg = new SHA256Managed();
var hash = new byte[alg.HashSize / 8];
using var builder = new HashBuilder(alg);
False(builder.IsEmpty);
builder.Add(data);
Equal(alg.HashSize / 8, builder.Build(hash));
alg.Initialize();
Equal(hash, alg.ComputeHash(data));
}
public static async Task HashPipe()
{
byte[] data = { 1, 2, 3, 5, 8, 13 };
using var alg = new SHA256Managed();
var hash = new byte[alg.HashSize / 8];
var pipe = new Pipe();
await pipe.Writer.WriteAsync(data);
await alg.ComputeHashAsync(pipe.Reader, data.Length, hash);
alg.Initialize();
Equal(hash, alg.ComputeHash(data));
}
public string HashPassword(string password)
{
password = "******" + password + "$#!%^";
var pwdBytes = Encoding.UTF8.GetBytes(password);
SHA256 hashAlg = new SHA256Managed();
hashAlg.Initialize();
var hashedBytes = hashAlg.ComputeHash(pwdBytes);
var hash = Convert.ToBase64String(hashedBytes);
return(hash);
}
public override uint256 GetHash()
{
ProcessBlock();
sha.TransformFinalBlock(Empty, 0, 0);
var hash1 = sha.Hash;
Buffer.BlockCopy(sha.Hash, 0, _Buffer, 0, 32);
sha.Initialize();
sha.TransformFinalBlock(_Buffer, 0, 32);
var hash2 = sha.Hash;
return(new uint256(hash2));
}
public MerkleTree()
{
m_BranchNodes = new List <MerkleNode>();
m_LeafNodes = new SortedDictionary <int, MerkleNode>();
m_Tasks = new List <Task>();
m_StopWatch = new Stopwatch();
m_Sha256Managed = new SHA256Managed();
m_Sha256Managed.Initialize();
m_IsMultithreaded = true;
}
public static String GenerateHash(String password)
{
//WARNING: This code does not reflect best practice. It is a simplistic implementation designed to introduce the concept of hashing.
password = "******" + password + "$#!%^";
var pwdBytes = Encoding.UTF8.GetBytes(password);
SHA256 hashAlg = new SHA256Managed();
hashAlg.Initialize();
var hashedBytes = hashAlg.ComputeHash(pwdBytes);
var hash = Convert.ToBase64String(hashedBytes);
return(hash);
}
public byte[] CalculateHash()
{
using (var sha256 = new SHA256Managed())
{
sha256.Initialize();
sha256.TransformBlock(this.Index);
sha256.TransformBlock(this.PreviousHash);
sha256.TransformBlock(this.TimeStamp.ToBinary());
sha256.TransformBlock(this.Data);
sha256.TransformFinalBlock(this.Nonce);
return(sha256.Hash);
}
}
//Create a string from the input
private static string Hash(string url)
{
byte[] result;
SHA256 shaM = new SHA256Managed();
byte[] ms = new byte[url.Length];
for (int i = 0; i < url.Length; i++)
{
byte b = Convert.ToByte(url[i]);
ms[i] = (b);
}
shaM.Initialize();
result = shaM.ComputeHash(ms, 0, ms.Length);
return(BitConverter.ToString(result));
}
public static string GenUid(string email)
{
//Make a hasher
SHA256 hasher = new SHA256Managed();
hasher.Initialize(); //Init the csp
//hash email for use in the UID
byte[] hashedBytes = hasher.ComputeHash(Encoding.ASCII.GetBytes(email));
//Use bit Converter to get hash string
string hashString = BitConverter.ToString(hashedBytes).Replace("-", String.Empty);
return("USR" + hashString);
}
private byte[] ComputeBinding(ChannelHeader channelHeader, SignatureHeader signatureHeader)
{
using (SHA256Managed digest = new SHA256Managed())
{
digest.Initialize();
digest.TransformBlock(signatureHeader.Nonce.ToByteArray(), 0, signatureHeader.Nonce.Length, null, 0);
digest.TransformBlock(creator.ToByteArray(), 0, creator.Length, null, 0);
byte[] epoch = BitConverter.GetBytes(channelHeader.Epoch);
if (!BitConverter.IsLittleEndian)
{
epoch = epoch.Reverse().ToArray();
}
digest.TransformFinalBlock(epoch, 0, epoch.Length);
return(digest.Hash);
}
}
public static async Task HashEntirePipe()
{
byte[] data = { 1, 2, 3, 5, 8, 13 };
using var alg = new SHA256Managed();
var hash = new byte[alg.HashSize / 8];
var pipe = new Pipe();
ThreadPool.QueueUserWorkItem(async state =>
{
await pipe.Writer.WriteAsync(data);
pipe.Writer.Complete();
});
await alg.ComputeHashAsync(pipe.Reader, hash);
alg.Initialize();
Equal(hash, alg.ComputeHash(data));
}
public static string HashPassword(string ClientHashedPassword)
{
//haslo >8 liter sprawdzane po stronie kilenta
var byteArrayClientPassword = Encoding.UTF8.GetBytes(ClientHashedPassword);
SHA256 sha = new SHA256Managed();
sha.Initialize();
var hashedPasswordBytes = sha.ComputeHash(byteArrayClientPassword);
string result = "";
foreach (var h in hashedPasswordBytes)
{
result += string.Format("{0:x2}", h);
}
sha.Clear();
return(result);
}
/*
*pHash - is the Hash Returned from the Credit Service. You need to URLDecode the value before passing it in.
*pSecretValue - the secret key issued when you registered at the Credit Gateway
*pAppId - the appid issued to you when you registered at the credit gateway
*pTransId - the transaction id your system issues to identify the purchase
*pTransAmount - the value you are charging for this transaction
*pAppStatus - The status of the credit transaction. Values : A = Accepted, D = Denied
*/
public static bool VerifyServerResponseHash(String pHash, String pSecretValue, String pAppId, String pTransId, String pTransAmount, String pAppStatus)
{
String secretPartA = pSecretValue.Substring(0, 5);
String secretPartB = pSecretValue.Substring(5, 5);
String val = secretPartA + "-" + pAppId + "-" + pTransId + "-" + pTransAmount + "-" + pAppStatus + "-" + secretPartB;
var pwdBytes = Encoding.UTF8.GetBytes(val);
SHA256 hashAlg = new SHA256Managed();
hashAlg.Initialize();
var hashedBytes = hashAlg.ComputeHash(pwdBytes);
var hash = Convert.ToBase64String(hashedBytes);
if (hash == pHash)
return true;
else
return false;
}
public string HashPassword(string ClientHashedPassword)
{
var byteArrayClientPassword = Encoding.UTF8.GetBytes(ClientHashedPassword);
SHA256 sha = new SHA256Managed();
sha.Initialize();
var hashedPasswordBytes = sha.ComputeHash(byteArrayClientPassword);
//var hashedPasswordString = Encoding.UTF8.GetString(hashedPasswordBytes);
string result = "";
foreach (var h in hashedPasswordBytes)
{
result += string.Format("{0:x2}", h);
}
sha.Clear();
//Console.WriteLine(hashedPasss);
return(result);
}
private string GetComputedSignature(DateTime now)
{
var header = this.GetHeader();
var claimSet = this.GetClaimSet(now);
var privateKey = this.GetPrivateKey();
using (var hashAlg = new SHA256Managed())
{
hashAlg.Initialize();
var headerAndPayload = Encode.UrlBase64Encode(header) + "." + Encode.UrlBase64Encode(claimSet);
var headerPayloadBytes = Encoding.ASCII.GetBytes(headerAndPayload);
var signature = Encode.UrlBase64Encode(privateKey.SignData(headerPayloadBytes, hashAlg));
return(headerAndPayload + "." + signature);
}
}
/*
* pSecretValue - the secret key issued when you registered at the Credit Gateway
* pAppId - the appid issued to you when you registered at the credit gateway
* pTransId - the transaction id your system issues to identify the purchase
* pTransAmount - the value you are charging for this transaction
*/
public static String GenerateClientRequestHash(String pSecretValue, String pAppId, String pTransId, String pTransAmount)
{
try
{
String secretPartA = pSecretValue.Substring(0, 5);
String secretPartB = pSecretValue.Substring(5, 5);
String val = secretPartA + "-" + pAppId + "-" + pTransId + "-" + pTransAmount + "-" + secretPartB;
var pwdBytes = Encoding.UTF8.GetBytes(val);
SHA256 hashAlg = new SHA256Managed();
hashAlg.Initialize();
var hashedBytes = hashAlg.ComputeHash(pwdBytes);
var hash = Convert.ToBase64String(hashedBytes);
return(hash);
}
catch (Exception e)
{
return(null);
}
}
/*
*pSecretValue - the secret key issued when you registered at the Credit Gateway
*pAppId - the appid issued to you when you registered at the credit gateway
*pTransId - the transaction id your system issues to identify the purchase
*pTransAmount - the value you are charging for this transaction
*/
public static String GenerateClientRequestHash(String pSecretValue, String pAppId, String pTransId, String pTransAmount)
{
try
{
String secretPartA = pSecretValue.Substring(0, 5);
String secretPartB = pSecretValue.Substring(5, 5);
String val = secretPartA + "-" + pAppId + "-" + pTransId + "-" + pTransAmount + "-" + secretPartB;
var pwdBytes = Encoding.UTF8.GetBytes(val);
SHA256 hashAlg = new SHA256Managed();
hashAlg.Initialize();
var hashedBytes = hashAlg.ComputeHash(pwdBytes);
var hash = Convert.ToBase64String(hashedBytes);
return hash;
}
catch (Exception)
{
return null;
}
}
public static string GetJWT(string clientEmail, RSACryptoServiceProvider privateKey, DateTime now)
{
var payload = new {
scope = scope,
iss = clientEmail,
aud = "https://accounts.google.com/o/oauth2/token",
exp = (int)(now - zeroDate + TimeSpan.FromHours(1)).TotalSeconds,
iat = (int)(now - zeroDate).TotalSeconds,
//sub = "*****@*****.**",
};
string serializedPayload = JsonConvert.SerializeObject(payload);
using (var hashAlg = new SHA256Managed()) {
hashAlg.Initialize();
var headerAndPayload = UrlBase64Encode(serializedHeader) + "." + UrlBase64Encode(serializedPayload);
var headerPayloadBytes = Encoding.ASCII.GetBytes(headerAndPayload);
var signature = UrlBase64Encode(privateKey.SignData(headerPayloadBytes, hashAlg));
return(headerAndPayload + "." + signature);
}
}
/*
* pHash - is the Hash Returned from the Credit Service. You need to URLDecode the value before passing it in.
* pSecretValue - the secret key issued when you registered at the Credit Gateway
* pAppId - the appid issued to you when you registered at the credit gateway
* pTransId - the transaction id your system issues to identify the purchase
* pTransAmount - the value you are charging for this transaction
* pAppStatus - The status of the credit transaction. Values : A = Accepted, D = Denied
*/
public static bool VerifyServerResponseHash(String pHash, String pSecretValue, String pAppId, String pTransId, String pTransAmount, String pAppStatus)
{
String secretPartA = pSecretValue.Substring(0, 5);
String secretPartB = pSecretValue.Substring(5, 5);
String val = secretPartA + "-" + pAppId + "-" + pTransId + "-" + pTransAmount + "-" + pAppStatus + "-" + secretPartB;
var pwdBytes = Encoding.UTF8.GetBytes(val);
SHA256 hashAlg = new SHA256Managed();
hashAlg.Initialize();
var hashedBytes = hashAlg.ComputeHash(pwdBytes);
var hash = Convert.ToBase64String(hashedBytes);
if (hash == pHash)
{
return(true);
}
else
{
return(false);
}
}
public static string Update(string p_Username, string p_Password, string p_IPAddress)
{
TcpClient l_Client = new TcpClient("hosting.caveserver.de", 8246);
NetworkStream l_Stream = l_Client.GetStream();
StreamReader l_Reader = new StreamReader(l_Stream);
StreamWriter l_Writer = new StreamWriter(l_Stream);
string l_Greeting = l_Reader.ReadLine();
if (!l_Greeting.StartsWith("*"))
{
l_Client.Close();
throw new Exception("Invalid server greeting!");
}
#region LOGIN
{
l_Writer.WriteLine("LOGIN " + p_Username);
l_Writer.Flush();
string l_Answer1 = l_Reader.ReadLine();
if (!l_Answer1.StartsWith("USERSALT"))
{
l_Client.Close();
throw new Exception("Error while logging in (Stage1):\n" + l_Answer1);
}
string l_Answer2 = l_Reader.ReadLine();
if (!l_Answer2.StartsWith("SERVERSALT"))
{
l_Client.Close();
throw new Exception("Error while logging in (Stage2):\n" + l_Answer2);
}
try
{
string l_UserSalt = l_Answer1.Split(' ')[1];
string l_ServerSalt = l_Answer2.Split(' ')[1];
SHA256Managed SHA256 = new SHA256Managed();
SHA256.Initialize();
byte[] l_Data1 = SHA256.ComputeHash(Encoding.UTF8.GetBytes(p_Password + l_UserSalt));
string l_String1 = Convert.ToBase64String(l_Data1).TrimEnd('=');
SHA256 = new SHA256Managed();
SHA256.Initialize();
byte[] l_Data2 = SHA256.ComputeHash(Encoding.UTF8.GetBytes(l_String1 + l_ServerSalt));
string l_String2 = Convert.ToBase64String(l_Data2).TrimEnd('=');
l_Writer.WriteLine("PASSWORD " + l_String2);
l_Writer.Flush();
}
catch (Exception ex)
{
throw new Exception("Error while logging in (Stage3)", ex);
}
string l_Answer = l_Reader.ReadLine();
if (!l_Answer.StartsWith("OK LOGIN"))
{
l_Client.Close();
throw new Exception("Error while logging in (Stage4):\n" + l_Answer);
}
}
#endregion
#region UPDATE
{
if (p_IPAddress != null)
{
l_Writer.WriteLine("UPDATE " + p_IPAddress);
l_Writer.Flush();
}
else
{
l_Writer.WriteLine("UPDATE");
l_Writer.Flush();
}
string l_Answer = l_Reader.ReadLine();
l_Client.Close();
if (!l_Answer.StartsWith("OK UPDATE"))
{
throw new Exception("Error while updating ip address:\n" + l_Answer);
}
return(l_Answer);
}
#endregion
}