<PackageReference Include="System.ServiceModel.Primitives" Version="6.2.0" />

System.IdentityModel.Tokens.SecurityTokenValidationException

namespace System.IdentityModel.Tokens { public class SecurityTokenValidationException : SecurityTokenException { public SecurityTokenValidationException(); public SecurityTokenValidationException(string message); public SecurityTokenValidationException(string message, Exception innerException); protected SecurityTokenValidationException(SerializationInfo info, StreamingContext context); } }