Soenneker.Hashing.XxHash 4.0.121

Prefix Reserved
.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package Soenneker.Hashing.XxHash --version 4.0.121
                    


                    

                
NuGet\Install-Package Soenneker.Hashing.XxHash -Version 4.0.121
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="Soenneker.Hashing.XxHash" Version="4.0.121" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Soenneker.Hashing.XxHash" Version="4.0.121" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Soenneker.Hashing.XxHash" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Soenneker.Hashing.XxHash --version 4.0.121
                    


                    

                
#r "nuget: Soenneker.Hashing.XxHash, 4.0.121"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Soenneker.Hashing.XxHash@4.0.121
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Soenneker.Hashing.XxHash&version=4.0.121
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Soenneker.Hashing.XxHash&version=4.0.121
                    


                            Install as a Cake Tool

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Soenneker.Hashing.XxHash

Fast XXH3 64-bit hashing for byte spans and UTF-8 text, with integer and canonical 16-character lowercase hexadecimal outputs.

XXH3 is non-cryptographic. Use it for hash-table keys, cache keys, partition selection, deduplication hints, and accidental-corruption checks. Do not use it for passwords, signatures, authentication tokens, or adversarial integrity checks.

Installation

dotnet add package Soenneker.Hashing.XxHash

Hash UTF-8 text

using Soenneker.Hashing.XxHash;

string hex = XxHash3Util.Hash("customer:42");
// 16 lowercase hex characters

ulong numeric = XxHash3Util.HashToUInt64("customer:42");

String and character-span overloads encode text as UTF-8 before hashing, so the same Unicode text produces the same result across processes.

Hash bytes or use a seed

ReadOnlySpan<byte> payload = ...;

ulong standard = XxHash3Util.HashToUInt64(payload);
ulong partitioned = XxHash3Util.HashUtf8ToUInt64(payload, seed: 17);

A seed produces a different deterministic hash family; it is not a secret key and does not make XXH3 cryptographically secure.

Compare a stored text hash

string expected = XxHash3Util.Hash(value);
bool matches = XxHash3Util.Verify(value, expected);

Verify() accepts exactly 16 hexadecimal characters and returns false for malformed values or a mismatch. This comparison is a convenience check, not constant-time authentication.

Character inputs up to the internal threshold are UTF-8 encoded on the stack; larger inputs use a pooled byte array. Byte-span hashing itself does not allocate. Null string overload arguments throw ArgumentNullException; span overloads naturally support empty input.

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (13)

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Provides cached HTTP clients for Zoho CRM access tokens and data-center API origins.
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GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
4.0.121 742 10/15/2026
4.0.120 51 10/15/2026
4.0.118 374 10/14/2026
4.0.115 830 10/14/2026
4.0.109 727 10/12/2026
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4.0.106 1,098 10/11/2026
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4.0.100 2,561 9/16/2026
4.0.99 133 9/16/2026
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4.0.97 1,973 9/13/2026
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4.0.95 498 9/13/2026
4.0.94 768 9/12/2026
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