SauceControl.Blake2Fast 0.1.0

.NET Core 2.0 .NET Standard 1.0 .NET Framework 4.5
There is a newer version of this package available.
See the version list below for details. 
Install-Package SauceControl.Blake2Fast -Version 0.1.0
dotnet add package SauceControl.Blake2Fast --version 0.1.0
<PackageReference Include="SauceControl.Blake2Fast" Version="0.1.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add SauceControl.Blake2Fast --version 0.1.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support. 
#r "nuget: SauceControl.Blake2Fast, 0.1.0"
#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 SauceControl.Blake2Fast as a Cake Addin
#addin nuget:?package=SauceControl.Blake2Fast&version=0.1.0

// Install SauceControl.Blake2Fast as a Cake Tool
#tool nuget:?package=SauceControl.Blake2Fast&version=0.1.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

These RFC 7693-compliant BLAKE2 implementations have been tuned for high speed and low memory usage. The .NET Core 2.1 build supports the new X86 SIMD Intrinsics for even greater speed and Span{T} for even lower memory usage.

Usage

All-at-Once Hashing

The simplest and lightest-weight way to calculate a hash is the all-at-once ComputeHash method.

Blake2b.ComputeHash(data);

BLAKE2 supports variable digest lengths from 1 to 32 bytes for Blake2s or 1 to 64 bytes for Blake2b.

Blake2b.ComputeHash(42, data);

BLAKE2 also natively supports keyed hashing.

Blake2b.ComputeHash(key, data);

Incremental Hashing

BLAKE2 hashes can be incrementally updated if you do not have the data available all at once.

async Task<byte[]> CalculateHashAsync(Stream data)
{
    var incHash = Blake2b.CreateIncrementalHasher();
    var buffer = new byte[4096];
    int bytesRead;

    while ((bytesRead = await data.ReadAsync(buffer, 0, buffer.Length)) > 0)
    {
        // Use Span<T> for .NET Core 2.1 or ArraySegment<T> for others
        incHash.Update(new ArraySegment<byte>(buffer, 0, bytesRead));
    }

    return incHash.Finish();
}

System.Security.Cryptography Interop

For interoperating with code that uses System.Security.Cryptography primitives, Blake2Fast can create a HashAlgorithm wrapper. The wrapper inherits from HMAC in case keyed hashing is required.

HashAlgorithm is less efficient than the above methods, so use it only when necessary for compatibility.

byte[] WriteDataAndCalculateHash(byte[] data)
{
    using (var hashAlg = Blake2b.CreateHashAlgorithm())
    using (var fileStream = new FileStream(@"c:\data\output.bin", FileMode.Create))
    using (var cryptoStream = new CryptoStream(fileStream, hashAlg, CryptoStreamMode.Write))
    {
        cryptoStream.Write(data, 0, data.Length);
        cryptoStream.FlushFinalBlock();
        return hashAlg.Hash;
    }
}

SIMD Intrinsics Warning

The X86 SIMD Intrinsics used in the .NET Core 2.1 build are not officially supported by Microsoft. Although the specific SSE Intrinsics used by Blake2Fast have been well-tested, the JIT support for the X86 Intrinsics in general is experimental in .NET Core 2.1. Please test with your specific hardware and report any issues here or in the CoreCLR repo as appropriate.

If you are uncomfortable using unsupported functionality, you can make a custom build of Blake2Fast by removing the USE_INTRINSICS define constant in the project file. This applies only to .NET Core 2.1; the older build targets use only the scalar code.

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
.NET Core netcoreapp1.0 netcoreapp1.1 netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard1.0 netstandard1.1 netstandard1.2 netstandard1.3 netstandard1.4 netstandard1.5 netstandard1.6 netstandard2.0 netstandard2.1
.NET Framework net45 net451 net452 net46 net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen30 tizen40 tizen60
Universal Windows Platform uap uap10.0
Windows Phone wp8 wp81 wpa81
Windows Store netcore netcore45 netcore451
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 (4)

Showing the top 4 NuGet packages that depend on SauceControl.Blake2Fast:

Package Downloads
CardanoSharp.Wallet

Package Description
DigitalRuby.SimpleCache

Simple and powerful caching for .NET using three layers: RAM, file and redis.
Centr.NetCS

Third Party Library for implementing Credits Blockchain in .NET
PoseidonSharp

This is a Poseidon Hashing Library built for use with Loopring

GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on SauceControl.Blake2Fast:

Repository Stars
baking-bad/tzkt
😼 Awesome Tezos blockchain indexer and API
Version Downloads Last updated
2.0.0 57,924 6/13/2020
1.0.0 20,912 7/26/2019
0.2.0 6,765 6/18/2018
0.1.0 712 6/15/2018

See https://github.com/saucecontrol/Blake2Fast/releases