<PackageReference Include="System.Security.Cryptography.Cng" Version="5.0.0-preview.5.20278.1" />

System.Security.Cryptography.AesCng

public sealed class AesCng : Aes
namespace System.Security.Cryptography { public sealed class AesCng : Aes { public AesCng(); public AesCng(string keyName); public AesCng(string keyName, CngProvider provider); public AesCng(string keyName, CngProvider provider, CngKeyOpenOptions openOptions); } }