Audience Class

public class Audience : SamlObject

Public Class Audience
   Inherits SamlObject

public ref class Audience : public SamlObject

Shows how to create a Response object and sign it.

using System;
using ComponentPro.Saml2;
using System.Xml;
using System.Security.Cryptography.X509Certificates;

...

X509Certificate2 x509Certificate = new X509Certificate2(@"..\..\Pkey.pfx", "password");

// Create SAML Response object.
Response response = new Response();

Assertion samlAssertion = new Assertion();
Audience aud = new Audience();
aud.Uri = "http://testuri.org";
AudienceRestriction ar = new AudienceRestriction();
ar.Audiences.Add(aud);

samlAssertion.Conditions = new Conditions();
samlAssertion.Conditions.ConditionsList.Add(ar);

samlAssertion.Sign(x509Certificate);

// Add SAML Assertion
response.Assertions.Add(samlAssertion);

// You can also sign the SAML response with the following code
response.Sign(x509Certificate);

XmlElement xmlElement = response.GetXml();

System.Diagnostics.Trace.WriteLine(xmlElement.OuterXml);
Console.WriteLine(xmlElement.OuterXml);

Imports ComponentPro.Saml2
Imports System.Xml
Imports System.Security.Cryptography.X509Certificates

...

Dim x509Certificate As New X509Certificate2("..\..\Pkey.pfx", "password")

' Create SAML Response object. 
Dim response As New Response()

Dim samlAssertion As New Assertion()
Dim aud As New Audience()
aud.Uri = "http://testuri.org" 
Dim ar As New AudienceRestriction()
ar.Audiences.Add(aud)

samlAssertion.Conditions = New Conditions()
samlAssertion.Conditions.ConditionsList.Add(ar)

samlAssertion.Sign(x509Certificate)

' Add SAML Assertion
response.Assertions.Add(samlAssertion)

' You can also sign the SAML response with the following code
response.Sign(x509Certificate)

Dim xmlElement As XmlElement = response.GetXml()

System.Diagnostics.Trace.WriteLine(xmlElement.OuterXml)
Console.WriteLine(xmlElement.OuterXml)

Reference