fingerprint-builder

Inspired by he-dev/reusable:FingerprintBuilder

Installation

 dotnet add package FingerprintBuilder

How to Use

Declare class:

class User
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
}

Configure Func:

var sha256 = FingerprintBuilder<User>
    .Create(SHA256.Create())
    .For(p => p.FirstName)
    .For(p => p.LastName)
    .Build();

Get hash:

var user = new User { FirstName = "John", LastName = "Smith" };
var hash = sha256(user).ToLowerHexString();
Console.WriteLine(hash); // 62565a67bf16004038c502eb68907411fcf7871c66ee01a1aa274cc18d9fb541

Benchmarks

BenchmarkDotNet v0.13.12, Ubuntu 24.04 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 8.0.300
  [Host]     : .NET 8.0.5 (8.0.524.21615), X64 RyuJIT AVX2
  DefaultJob : .NET 8.0.5 (8.0.524.21615), X64 RyuJIT AVX2

Method	Mean	Error	StdDev	Median	Gen0	Allocated
MD5_Model_To_Hex	1.343 μs	0.0130 μs	0.0122 μs	1.340 μs	0.0801	1.34 KB
SHA1_Model_To_Hex	1.675 μs	0.0131 μs	0.0123 μs	1.674 μs	0.0896	1.49 KB
SHA256_Model_To_Hex	2.022 μs	0.0187 μs	0.0166 μs	2.024 μs	0.1144	1.93 KB
SHA512_Model_To_Hex	2.937 μs	0.0268 μs	0.0250 μs	2.931 μs	0.1907	3.12 KB

License

All contents of this package are licensed under the MIT license.