InfoCardProofToken.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / infocard / Client / System / IdentityModel / Selectors / InfoCardProofToken.cs / 1305376 / InfoCardProofToken.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace System.IdentityModel.Selectors 
{
    using System; 
    using System.IdentityModel.Tokens; 
    using System.IdentityModel.Policy;
    using System.IdentityModel.Claims; 
    using System.Collections.Generic;
    using System.Collections.ObjectModel;

    // 
    // Summary:
    //  This class implements a SecurityToken to wrap a remoted crypto key.  It provides indirect 
    //  access to the private proof key associated with a released token. 
    //
    internal class InfoCardProofToken : SecurityToken, IDisposable 
    {
        string m_id;
        DateTime m_expiration;
        ReadOnlyCollection m_securityKeys; 
        SecurityKey m_securityKey;
 
        public InfoCardProofToken( AsymmetricCryptoHandle cryptoHandle, DateTime expiration ) : this( expiration ) 
        {
            InitCrypto( new InfoCardAsymmetricCrypto( cryptoHandle ) ); 
        }

        public InfoCardProofToken( SymmetricCryptoHandle cryptoHandle, DateTime expiration ) : this( expiration )
        { 
            InitCrypto( new InfoCardSymmetricCrypto( cryptoHandle ) );
        } 
 
        private InfoCardProofToken( DateTime expiration ) : base()
        { 
            m_id = Guid.NewGuid().ToString();
            m_expiration = expiration.ToUniversalTime();
        }
 
        public override string Id
        { 
            get { return m_id; } 
        }
 
        public override ReadOnlyCollection SecurityKeys
        {
            get
            { 
                return m_securityKeys;
            } 
        } 

        public override DateTime ValidTo 
        {
            get { return m_expiration; }
        }
 
        public override DateTime ValidFrom
        { 
            get { return DateTime.UtcNow; } 
        }
 
        private void InitCrypto(SecurityKey securityKey)
        {
            m_securityKey = securityKey;
            List securityKeys = new List(1); 
            securityKeys.Add(securityKey);
            m_securityKeys = securityKeys.AsReadOnly(); 
        } 

        public void Dispose() 
        {
            m_securityKeys = null;
            ((IDisposable)m_securityKey).Dispose();
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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