<PackageReference Include="SSH.NET" Version="2020.0.2" />

Renci.SshNet.Security.Cryptography.HMACSHA256

public class HMACSHA256 : HMACSHA256
Computes a Hash-based Message Authentication Code (HMAC) by using the SHA256 hash function.
namespace Renci.SshNet.Security.Cryptography { public class HMACSHA256 : System.Security.Cryptography.HMACSHA256 { public HMACSHA256(byte[] key); public HMACSHA256(byte[] key, int hashSize); } }