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Kerb add net writer (#39)
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* Reorganized classes and namespaces

Added asn1 debugger

* Gigantic overhaul of ASN.1 decoding library

Began replacement of custom decoder with .NET Core's soon to be builtin library.

* Replaced Asn1Element with proper decoder everywhere

MessageParser is now a smarter about how it tries to detect and parse tickets
Added a new KerberosIdentity so restrictions and validation modes can be more easily recovered
Split negotiate into negotiate+ntlm+negoex classes to simply logic and add a bit more consistency

* Organizational and formatting clean up
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@SteveSyfuhs
SteveSyfuhs committed Jun 30, 2019
1 parent 1490d9d commit 5372aee
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Showing 260 changed files with 19,946 additions and 2,695 deletions.
2 changes: 2 additions & 0 deletions KerbDump/Form1.cs
View file
Expand Up @@ -222,6 +222,8 @@ private async Task<string> Decode(string ticket, KeyTable key)
{
var validator = new KerberosValidator(key) { ValidateAfterDecrypt = ValidationActions.Pac };

validator.Logger.Enabled = false;

var ticketBytes = Convert.FromBase64String(ticket);

var decrypted = await validator.Validate(ticketBytes);
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10 changes: 10 additions & 0 deletions KerbDump/KerbDump.csproj
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Expand Up @@ -31,6 +31,16 @@
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug net452|AnyCPU'">
<DebugSymbols>true</DebugSymbols>
<OutputPath>bin\Debug net452\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<DebugType>full</DebugType>
<PlatformTarget>AnyCPU</PlatformTarget>
<ErrorReport>prompt</ErrorReport>
<CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
<Prefer32Bit>true</Prefer32Bit>
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<ItemGroup>
<Reference Include="Newtonsoft.Json, Version=11.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
<HintPath>..\packages\Newtonsoft.Json.11.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
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3 changes: 2 additions & 1 deletion KerbDump/KerberosIgnoreResolver.cs
View file
@@ -1,4 +1,5 @@
using Kerberos.NET.Entities;
using Kerberos.NET.Asn1;
using Kerberos.NET.Entities;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
using System;
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15 changes: 15 additions & 0 deletions KerbDump/Program.cs
View file
@@ -1,5 +1,6 @@
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
Expand All @@ -14,9 +15,23 @@ static class Program
[STAThread]
static void Main()
{
AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;
AppDomain.CurrentDomain.AssemblyLoad += CurrentDomain_AssemblyLoad;
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}

private static void CurrentDomain_AssemblyLoad(object sender, AssemblyLoadEventArgs args)
{
Debug.WriteLine(args.LoadedAssembly);
}

private static System.Reflection.Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
{
Debug.WriteLine(args.Name);

return null;
}
}
}
76 changes: 13 additions & 63 deletions Kerberos.NET.sln
View file
@@ -1,81 +1,31 @@

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98 changes: 98 additions & 0 deletions Kerberos.NET.sln.old
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@@ -0,0 +1,98 @@

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37 changes: 37 additions & 0 deletions Kerberos.NET/Asn1/AsnXml.targets
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</ItemGroup>

<!-- MSBuild for .NET Core doesn't support XslTransform at this time -->
<Target Name="CompileAsn" BeforeTargets="CoreCompile"
Inputs="@(AsnXml);$(MSBuildThisFileDirectory)asn.xslt"
Outputs="%(Identity).cs">

<MakeDir Directories="$(IntermediateOutputPath)asnxml" />

<XslTransformation
XslInputPath="$(MSBuildThisFileDirectory)asn.xslt"
XmlInputPaths="@(AsnXml)"
OutputPaths="@(AsnXml -> '$(IntermediateOutputPath)asnxml\%(filename).cs')" />

<Exec Condition="'$(OS)'=='Windows_NT'"
IgnoreExitCode="true"
StandardOutputImportance="Low"
Command="$(SystemRoot)\System32\fc.exe /a @(AsnXml -> '$(IntermediateOutputPath)asnxml\%(filename).cs') @(AsnXml -> '%(RelativeDir)%(filename).generated.cs')">
<Output TaskParameter="ExitCode" ItemName="_AsnXmlDiffCode" />
</Exec>

<Copy
Condition="'@(_AsnXmlDiffCode)' != '0'"
SourceFiles="@(AsnXml -> '$(IntermediateOutputPath)asnxml\%(filename).cs')"
DestinationFiles="@(AsnXml -> '%(RelativeDir)%(filename).generated.cs')" />

<Warning Condition="'@(_AsnXmlDiffCode)' != '0'" Text="AsnXml regenerated files, be sure to check them in: @(AsnXml -> '%(RelativeDir)%(filename).generated.cs')" />
</Target>
</Project>
57 changes: 57 additions & 0 deletions Kerberos.NET/Asn1/BitOperation.cs
View file
@@ -0,0 +1,57 @@
using Kerberos.NET.Crypto;
using System;

namespace Kerberos.NET.Asn1
{
internal static class BitOperation
{
public static ReadOnlySpan<byte> AsReadOnly(this Enum val)
{
var bytes = new byte[4];

var longVal = (object)val;

Endian.ConvertToBigEndian((int)((long)longVal), bytes, 0);

return new ReadOnlySpan<byte>(bytes);
}

public static int AsInt(this ReadOnlyMemory<byte> val)
{
var bytes = val.Span;

int num = 0;

for (int i = 0; i < bytes.Length; i++)
{
num = (num << 8) | bytes[i];
}

return num;
}

public static long AsLong(this byte[] val)
{
return AsLong((ReadOnlyMemory<byte>)val);
}

public static long AsLong(this ReadOnlyMemory<byte> val, bool littleEndian = false)
{
var bytes = val.Span.ToArray();

if (littleEndian)
{
Array.Reverse(bytes);
}

long num = 0;

for (int i = 0; i < bytes.Length; i++)
{
num = (num << 8) | bytes[i];
}

return num;
}
}
}

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