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Added new package logo from @MrVeil303 (resized 128x128 as recommended by Nuget)
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Wizou
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[](https://core.telegram.org/api/layers)
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[](https://t.me/WTelegramClient)
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# WTelegramClient
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# <img src="logo.png" width="32"/> WTelegramClient
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### _Telegram client library written 100% in C# and .NET Standard_
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## How to use
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@ -111,7 +111,7 @@ I've added several useful converters or implicit cast to various API object so t
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Beyond the TL async methods, the Client class offers a few other methods to simplify the sending of files, medias or messages.
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This library works best with **.NET 5.0** and is also available for **.NET Standard 2.0** (.NET Framework 4.6.1 & .NET Core 2.0)
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This library works best with **.NET 5.0+** and is also available for **.NET Standard 2.0** (.NET Framework 4.6.1+ & .NET Core 2.0+)
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# Development status
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The library is usable for most scenarios including (sequential or parallel) automated steps based on API requests/responses, or real-time monitoring of incoming Updates/messages. Secret chats have not been tested yet.
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@ -312,7 +312,8 @@ Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB
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Sha256.TransformFinalBlock(algo.salt2, 0, algo.salt2.Length);
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hash = Sha256.Hash;
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#if NETCOREAPP2_0_OR_GREATER
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var pbkdf2 = new Rfc2898DeriveBytes(hash, algo.salt1, 100000, HashAlgorithmName.SHA512).GetBytes(64);
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using var derive = new Rfc2898DeriveBytes(hash, algo.salt1, 100000, HashAlgorithmName.SHA512);
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var pbkdf2 = derive.GetBytes(64);
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#else
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var pbkdf2 = PBKDF2_SHA512(hash, algo.salt1, 100000, 64);
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#endif
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@ -360,9 +361,7 @@ Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB
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// adapted from https://github.com/dotnet/aspnetcore/blob/main/src/DataProtection/Cryptography.KeyDerivation/src/PBKDF2/ManagedPbkdf2Provider.cs
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public static byte[] PBKDF2_SHA512(byte[] password, byte[] salt, int iterationCount, int numBytesRequested)
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{
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// PBKDF2 is defined in NIST SP800-132, Sec. 5.3.
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// http://csrc.nist.gov/publications/nistpubs/800-132/nist-sp800-132.pdf
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// PBKDF2 is defined in NIST SP800-132, Sec. 5.3: http://csrc.nist.gov/publications/nistpubs/800-132/nist-sp800-132.pdf
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byte[] retVal = new byte[numBytesRequested];
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int numBytesWritten = 0;
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int numBytesRemaining = numBytesRequested;
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@ -371,39 +370,35 @@ Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB
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byte[] saltWithBlockIndex = new byte[checked(salt.Length + sizeof(uint))];
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Buffer.BlockCopy(salt, 0, saltWithBlockIndex, 0, salt.Length);
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using (var hashAlgorithm = new HMACSHA512(password))
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using var hashAlgorithm = new HMACSHA512(password);
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for (uint blockIndex = 1; numBytesRemaining > 0; blockIndex++)
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{
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for (uint blockIndex = 1; numBytesRemaining > 0; blockIndex++)
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// write the block index out as big-endian
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saltWithBlockIndex[^4] = (byte)(blockIndex >> 24);
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saltWithBlockIndex[^3] = (byte)(blockIndex >> 16);
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saltWithBlockIndex[^2] = (byte)(blockIndex >> 8);
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saltWithBlockIndex[^1] = (byte)blockIndex;
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// U_1 = PRF(U_0) = PRF(Salt || block_index)
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// T_blockIndex = U_1
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byte[] U_iter = hashAlgorithm.ComputeHash(saltWithBlockIndex); // this is U_1
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byte[] T_blockIndex = U_iter;
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for (int iter = 1; iter < iterationCount; iter++)
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{
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// write the block index out as big-endian
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saltWithBlockIndex[^4] = (byte)(blockIndex >> 24);
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saltWithBlockIndex[^3] = (byte)(blockIndex >> 16);
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saltWithBlockIndex[^2] = (byte)(blockIndex >> 8);
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saltWithBlockIndex[^1] = (byte)blockIndex;
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// U_1 = PRF(U_0) = PRF(Salt || block_index)
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// T_blockIndex = U_1
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byte[] U_iter = hashAlgorithm.ComputeHash(saltWithBlockIndex); // this is U_1
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byte[] T_blockIndex = U_iter;
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for (int iter = 1; iter < iterationCount; iter++)
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{
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U_iter = hashAlgorithm.ComputeHash(U_iter);
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for (int j = U_iter.Length - 1; j >= 0; j--)
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T_blockIndex[j] ^= U_iter[j];
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// At this point, the 'U_iter' variable actually contains U_{iter+1} (due to indexing differences).
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}
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// At this point, we're done iterating on this block, so copy the transformed block into retVal.
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int numBytesToCopy = Math.Min(numBytesRemaining, T_blockIndex.Length);
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Buffer.BlockCopy(T_blockIndex, 0, retVal, numBytesWritten, numBytesToCopy);
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numBytesWritten += numBytesToCopy;
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numBytesRemaining -= numBytesToCopy;
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U_iter = hashAlgorithm.ComputeHash(U_iter);
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for (int j = U_iter.Length - 1; j >= 0; j--)
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T_blockIndex[j] ^= U_iter[j];
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// At this point, the 'U_iter' variable actually contains U_{iter+1} (due to indexing differences).
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}
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}
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// retVal := T_1 || T_2 || ... || T_n, where T_n may be truncated to meet the desired output length
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return retVal;
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// At this point, we're done iterating on this block, so copy the transformed block into retVal.
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int numBytesToCopy = Math.Min(numBytesRemaining, T_blockIndex.Length);
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Buffer.BlockCopy(T_blockIndex, 0, retVal, numBytesWritten, numBytesToCopy);
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numBytesWritten += numBytesToCopy;
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numBytesRemaining -= numBytesToCopy;
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}
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return retVal; // retVal := T_1 || T_2 || ... || T_n, where T_n may be truncated to meet the desired output length
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}
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#endif
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}
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@ -14,6 +14,7 @@
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<Description>Telegram client library written 100% in C# and .NET Standard</Description>
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<Authors>Wizou</Authors>
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<Copyright>Copyright © Olivier Marcoux 2021</Copyright>
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<PackageIcon>logo.png</PackageIcon>
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<PackageTags>Telegram;Client;Api;UserBot;MTProto</PackageTags>
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<PackageLicenseExpression>MIT</PackageLicenseExpression>
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<PackageProjectUrl>https://github.com/wiz0u/WTelegramClient</PackageProjectUrl>
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@ -29,7 +30,11 @@
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<ItemGroup>
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<None Remove=".gitattributes" />
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<None Remove=".gitignore" />
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<!--<None Include="..\README.md" Pack="true" PackagePath=""/>-->
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</ItemGroup>
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<ItemGroup>
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<None Include="..\logo.png" Link="Data\logo.png" Pack="true" PackagePath="\"/>
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<None Include="..\README.md" Link="Data\README.md" Pack="true" PackagePath="\"/>
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</ItemGroup>
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<ItemGroup>
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