PseudoGuid 1.0.0

.NET Standard 2.0
There is a newer version of this package available.
See the version list below for details.
dotnet add package PseudoGuid --version 1.0.0
NuGet\Install-Package PseudoGuid -Version 1.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="PseudoGuid" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add PseudoGuid --version 1.0.0
#r "nuget: PseudoGuid, 1.0.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install PseudoGuid as a Cake Addin
#addin nuget:?package=PseudoGuid&version=1.0.0

// Install PseudoGuid as a Cake Tool
#tool nuget:?package=PseudoGuid&version=1.0.0

Pseudo Guid


Generate identifiers, conforming to the Guid CLR type, that are based on a prefix and sequence. The identifiers are not compliant with RFC4122 (and are marked with a version outside of what is defined in RFC4122, as to guarantee never colliding with an actually compliant UUID, such as one generated using Guid.NewGuid).


Identifier prefixes are based on an Enum type. Each enum value is hashed, to generate a prefix. The prefix is 12 bytes long when sequence is of type int, and 8 bytes long when sequence is of type long. In the event that the Enum type being used results in a potential prefix collision, an exception is thrown.


var HashAlgorithm = MD5.Create();
var khashes = new KindHashes<Color>(HashAlgorithm);
var pgs = new PseudoGuids<Color, int>(khashes);

var one = pgs.Encode(Color.Red, 1);
var two = pgs.Encode(Color.Red, 2);

Assert.That(pgs.TryDecode(one, out var kind1, out var seq1), Is.True);
Assert.That(kind1, Is.EqualTo(Color.Red));
Assert.That(seq1, Is.EqualTo(1));

Assert.That(pgs.TryDecode(two, out var kind2, out var seq2), Is.True);
Assert.That(kind2, Is.EqualTo(Color.Red));
Assert.That(seq2, Is.EqualTo(2));
Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last updated
1.0.1 19,118 6/26/2021
1.0.0 280 6/26/2021