public CustomSecurityClientOutputFilter(CustomSecurityAssertion parentAssertion) : base(parentAssertion.ServiceActor, true) { X509Certificate2 solutionCertificate = parentAssertion.SolutionCertificate; solutionCertificateToken = new X509SecurityToken(solutionCertificate); sig = new MessageSignature(solutionCertificateToken); }