<PackageReference Include="Microsoft.Bcl.Cryptography" Version="10.0.12" />

System.Security.Cryptography.SlhDsaCng

public sealed class SlhDsaCng : SlhDsa
Provides a Cryptography Next Generation (CNG) implementation of the Stateless Hash-Based Digital Signature Algorithm (SLH-DSA).
namespace System.Security.Cryptography { public sealed class SlhDsaCng : SlhDsa { public SlhDsaCng(CngKey key); public CngKey GetKey(); } }