C# and PowerShell versions (#8)

* create C# folder

* C# version

* PowerShell version
This commit is contained in:
dmfabritius 2019-03-14 09:07:06 -07:00 committed by Michael Pound
parent 5aeb5c581e
commit ff50927417
7 changed files with 218 additions and 0 deletions

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csharp/App.config Normal file
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<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
</startup>
</configuration>

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using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("pwned_search")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("pwned_search")]
[assembly: AssemblyCopyright("")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
// Setting ComVisible to false makes the types in this assembly not visible
// to COM components. If you need to access a type in this assembly from
// COM, set the ComVisible attribute to true on that type.
[assembly: ComVisible(false)]
// The following GUID is for the ID of the typelib if this project is exposed to COM
[assembly: Guid("16bc2ac9-dcda-44b2-aa3c-3537ce769319")]
// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]

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csharp/README.md Normal file
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C# version

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csharp/pwned-search.cs Normal file
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using System;
using System.Security.Cryptography;
using System.Text;
using System.Net;
using System.IO;
namespace pwned_search {
class Program {
static void Main(string[] args) {
Console.Write("Enter the password to check: ");
string plaintext = Console.ReadLine();
SHA1 sha = new SHA1CryptoServiceProvider();
byte[] data = sha.ComputeHash(Encoding.ASCII.GetBytes(plaintext));
// Loop through each byte of the hashed data
// and format each one as a hexadecimal string.
var sBuilder = new StringBuilder();
for (int i = 0; i < data.Length; i++) {
sBuilder.Append(data[i].ToString("x2"));
}
string result = sBuilder.ToString().ToUpper();
Console.WriteLine($"The SHA-1 hash of {plaintext} is: {result}");
// get a list of all the possible passwords where the first 5 digits of the hash are the same
string url = "https://api.pwnedpasswords.com/range/" + result.Substring(0, 5);
WebRequest request= WebRequest.Create(url);
Stream response = request.GetResponse().GetResponseStream();
StreamReader reader = new StreamReader(response);
// look at each possibility and compare the rest of the hash to see if there is a match
string hashToCheck = result.Substring(5);
while (true) {
string line = reader.ReadLine();
if (line == null) {
Console.WriteLine("That password was not found.");
break;
}
string[] parts = line.Split(':');
if (parts[0] == hashToCheck) {
Console.WriteLine("Password has been compromised -- DO NOT USE!");
break;
}
}
Console.ReadKey(); // pause until key press
}
}
}

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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>{16BC2AC9-DCDA-44B2-AA3C-3537CE769319}</ProjectGuid>
<OutputType>Exe</OutputType>
<RootNamespace>pwned_search</RootNamespace>
<AssemblyName>pwned-search</AssemblyName>
<TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
<PublishUrl>publish\</PublishUrl>
<Install>true</Install>
<InstallFrom>Disk</InstallFrom>
<UpdateEnabled>false</UpdateEnabled>
<UpdateMode>Foreground</UpdateMode>
<UpdateInterval>7</UpdateInterval>
<UpdateIntervalUnits>Days</UpdateIntervalUnits>
<UpdatePeriodically>false</UpdatePeriodically>
<UpdateRequired>false</UpdateRequired>
<MapFileExtensions>true</MapFileExtensions>
<ApplicationRevision>0</ApplicationRevision>
<ApplicationVersion>1.0.0.%2a</ApplicationVersion>
<IsWebBootstrapper>false</IsWebBootstrapper>
<UseApplicationTrust>false</UseApplicationTrust>
<BootstrapperEnabled>true</BootstrapperEnabled>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Core" />
<Reference Include="System.Xml.Linq" />
<Reference Include="System.Data.DataSetExtensions" />
<Reference Include="Microsoft.CSharp" />
<Reference Include="System.Data" />
<Reference Include="System.Net.Http" />
<Reference Include="System.Xml" />
</ItemGroup>
<ItemGroup>
<Compile Include="pwned-search.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
</ItemGroup>
<ItemGroup>
<None Include="App.config" />
</ItemGroup>
<ItemGroup>
<BootstrapperPackage Include=".NETFramework,Version=v4.6.1">
<Visible>False</Visible>
<ProductName>Microsoft .NET Framework 4.6.1 %28x86 and x64%29</ProductName>
<Install>true</Install>
</BootstrapperPackage>
<BootstrapperPackage Include="Microsoft.Net.Framework.3.5.SP1">
<Visible>False</Visible>
<ProductName>.NET Framework 3.5 SP1</ProductName>
<Install>false</Install>
</BootstrapperPackage>
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
</Project>

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csharp/pwned-search.sln Normal file
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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio 15
VisualStudioVersion = 15.0.28307.421
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "pwned-search", "pwned-search.csproj", "{16BC2AC9-DCDA-44B2-AA3C-3537CE769319}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{16BC2AC9-DCDA-44B2-AA3C-3537CE769319}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{16BC2AC9-DCDA-44B2-AA3C-3537CE769319}.Debug|Any CPU.Build.0 = Debug|Any CPU
{16BC2AC9-DCDA-44B2-AA3C-3537CE769319}.Release|Any CPU.ActiveCfg = Release|Any CPU
{16BC2AC9-DCDA-44B2-AA3C-3537CE769319}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {8A16037A-221E-4C67-9C1A-348C35C8DA98}
EndGlobalSection
EndGlobal

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pwned-search.ps1 Normal file
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$string = Read-Host -Prompt 'Password to check'
$bytes = [System.Text.Encoding]::UTF8.GetBytes($string)
$sha1 = New-Object System.Security.Cryptography.SHA1CryptoServiceProvider
$data = $sha1.ComputeHash($bytes)
$result = ($data | ForEach-Object ToString X2) -join ''
$result = $result.ToUpper()
$head = $result.Substring(0,5)
$tail = $result.Substring(5)
[Net.ServicePointManager]::SecurityProtocol = "TLS12, TLS11, TLS, SSL3"
$request = [System.Net.WebRequest]::Create("https://api.pwnedpasswords.com/range/" + $head)
$reader = New-Object System.IO.StreamReader(($request.GetResponse()).GetResponseStream())
$found = 0
while (($line = $reader.ReadLine()) -ne $null) {
if ($line.Split(':')[0] -eq $tail) {
Write-Host "That password has been compromised."
$found = 1
break
}
}
if ($found -eq 0) { Write-Host "That password was not found." }