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Merge pull request #120 from BigBang1112/dev
GBX.NET 2.0.7
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| namespace GBX.NET.BlockInfo; | ||
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| public class Class1 | ||
| { | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <TargetFramework>net8.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| </PropertyGroup> | ||
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| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| using GBX.NET.Exceptions; | ||
| using GBX.NET.Serialization; | ||
| using System.Text; | ||
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| namespace GBX.NET.Crypto; | ||
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| public static partial class Cry | ||
| { | ||
| private const ulong Key = 0xCF08317C90460052; | ||
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| [Zomp.SyncMethodGenerator.CreateSyncVersion] | ||
| public static async Task<string> DecryptAsync(Stream stream, CancellationToken cancellationToken = default) | ||
| { | ||
| if (Gbx.LZO is null) | ||
| { | ||
| throw new LzoNotDefinedException(); | ||
| } | ||
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| using var r = new GbxReader(stream); | ||
| var uncompressedSize = r.ReadInt32(); | ||
| var compressedData = await r.ReadDataAsync(cancellationToken); | ||
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| var uncompressedData = new byte[uncompressedSize]; | ||
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| Gbx.LZO.Decompress(compressedData, uncompressedData); | ||
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| var shift = uncompressedSize & 0x3F; | ||
| var rotkey = (Key << shift) | (Key >> (64 - shift)); | ||
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| var rotkeyBytes = BitConverter.GetBytes(rotkey); | ||
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| for (int i = 0; i < uncompressedSize; i++) | ||
| { | ||
| uncompressedData[i] ^= rotkeyBytes[i & 0x7]; | ||
| } | ||
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| return Encoding.ASCII.GetString(uncompressedData); | ||
| } | ||
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| public static async Task<string> DecryptAsync(string fileName, CancellationToken cancellationToken = default) | ||
| { | ||
| #if !NETSTANDARD2_0 | ||
| await | ||
| #endif | ||
| using var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, useAsync: true); | ||
| return await DecryptAsync(fs, cancellationToken); | ||
| } | ||
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| public static string Decrypt(string fileName) | ||
| { | ||
| using var fs = File.OpenRead(fileName); | ||
| return Decrypt(fs); | ||
| } | ||
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| [Zomp.SyncMethodGenerator.CreateSyncVersion] | ||
| public static async Task EncryptAsync(Stream stream, string contents, CancellationToken cancellationToken = default) | ||
| { | ||
| if (Gbx.LZO is null) | ||
| { | ||
| throw new LzoNotDefinedException(); | ||
| } | ||
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| var uncompressedData = Encoding.ASCII.GetBytes(contents); | ||
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| var shift = uncompressedData.Length & 0x3F; | ||
| var rotkey = (Key << shift) | (Key >> (64 - shift)); | ||
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| var rotkeyBytes = BitConverter.GetBytes(rotkey); | ||
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| for (int i = 0; i < uncompressedData.Length; i++) | ||
| { | ||
| uncompressedData[i] ^= rotkeyBytes[i & 0x7]; | ||
| } | ||
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| using var w = new GbxWriter(stream); | ||
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| w.Write(uncompressedData.Length); | ||
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| var compressedData = Gbx.LZO.Compress(uncompressedData); | ||
| await w.WriteDataAsync(compressedData, cancellationToken); | ||
| } | ||
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| public static async Task EncryptAsync(string fileName, string contents, CancellationToken cancellationToken = default) | ||
| { | ||
| #if !NETSTANDARD2_0 | ||
| await | ||
| #endif | ||
| using var fs = new FileStream(fileName, FileMode.Create, FileAccess.Write, FileShare.None, 4096, useAsync: true); | ||
| await EncryptAsync(fs, contents, cancellationToken); | ||
| } | ||
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| public static void Encrypt(string fileName, string contents) | ||
| { | ||
| using var fs = File.Create(fileName); | ||
| Encrypt(fs, contents); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| using System.Text; | ||
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| namespace GBX.NET.Crypto; | ||
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| public static partial class MD5 | ||
| { | ||
| public static byte[] Compute(byte[] data) | ||
| { | ||
| #if NET6_0_OR_GREATER | ||
| return System.Security.Cryptography.MD5.HashData(data); | ||
| #else | ||
| using var md5 = System.Security.Cryptography.MD5.Create(); | ||
| return md5.ComputeHash(data); | ||
| #endif | ||
| } | ||
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| public static byte[] Compute(string data) | ||
| { | ||
| return Compute(Encoding.ASCII.GetBytes(data)); | ||
| } | ||
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| #if NET8_0_OR_GREATER | ||
| public static async ValueTask<byte[]> ComputeAsync(byte[] data, CancellationToken cancellationToken = default) | ||
| { | ||
| await using var ms = new MemoryStream(data); | ||
| return await System.Security.Cryptography.MD5.HashDataAsync(ms, cancellationToken); | ||
| } | ||
| #elif NET6_0_OR_GREATER || NETSTANDARD2_0 | ||
| public static async Task<byte[]> ComputeAsync(byte[] data, CancellationToken cancellationToken = default) | ||
| { | ||
| using var md5 = System.Security.Cryptography.MD5.Create(); | ||
| #if NET6_0_OR_GREATER | ||
| await using var ms = new MemoryStream(data); | ||
| return await md5.ComputeHashAsync(ms, cancellationToken); | ||
| #else | ||
| return await Task.FromResult(md5.ComputeHash(data)); | ||
| #endif | ||
| } | ||
| #endif | ||
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| public static async Task<byte[]> ComputeAsync(string data, CancellationToken cancellationToken = default) | ||
| { | ||
| return await ComputeAsync(Encoding.ASCII.GetBytes(data), cancellationToken); | ||
| } | ||
| } |
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