<PackageReference Include="BouncyCastle.Cryptography" Version="2.6.1" />

AlertLevel

public abstract class AlertLevel
RFC 5246 7.2
namespace Org.BouncyCastle.Tls { public abstract class AlertLevel { public const short warning = 1; public const short fatal = 2; public static string GetName(short alertDescription) { switch (alertDescription) { case 1: return "warning"; case 2: return "fatal"; default: return "UNKNOWN"; } } public static string GetText(short alertDescription) { return GetName(alertDescription) + "(" + alertDescription.ToString() + ")"; } } }