CngKeyCreationParameters.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 / fx / src / Core / System / Security / Cryptography / CngKeyCreationParameters.cs / 1305376 / CngKeyCreationParameters.cs
                        

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

using System; 
using System.Collections.Generic; 
using System.Collections.ObjectModel;
using System.Security; 
using System.Security.Permissions;
using System.Diagnostics.Contracts;

namespace System.Security.Cryptography { 
    /// 
    ///     Settings to be applied to a CNG key before it is finalized. 
    ///  
    [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)]
    public sealed class CngKeyCreationParameters { 
        private CngExportPolicies? m_exportPolicy;
        private CngKeyCreationOptions m_keyCreationOptions;
        private CngKeyUsages? m_keyUsage;
        private CngPropertyCollection m_parameters = new CngPropertyCollection(); 
        private IntPtr m_parentWindowHandle;
        private CngProvider m_provider = CngProvider.MicrosoftSoftwareKeyStorageProvider; 
        private CngUIPolicy m_uiPolicy; 

        ///  
        ///     How many times can this key be exported from the KSP
        /// 
        public CngExportPolicies? ExportPolicy {
            get { return m_exportPolicy; } 
            set { m_exportPolicy = value; }
        } 
 
        /// 
        ///     Flags controlling how to create the key 
        /// 
        public CngKeyCreationOptions KeyCreationOptions {
            get { return m_keyCreationOptions; }
            set { m_keyCreationOptions = value; } 
        }
 
        ///  
        ///     Which cryptographic operations are valid for use with this key
        ///  
        public CngKeyUsages? KeyUsage {
            get { return m_keyUsage; }
            set { m_keyUsage = value; }
        } 

        ///  
        ///     Window handle to use as the parent for the dialog shown when the key is created 
        /// 
        public IntPtr ParentWindowHandle { 
            get { return m_parentWindowHandle; }

            [SecurityPermission(SecurityAction.Demand, UnmanagedCode = true)]
            set { m_parentWindowHandle = value; } 
        }
 
        ///  
        ///     Extra parameter values to set before the key is finalized
        ///  
        public CngPropertyCollection Parameters {
            [SecurityPermission(SecurityAction.Demand, UnmanagedCode = true)]
            get {
                Contract.Ensures(Contract.Result() != null); 
                return m_parameters;
            } 
        } 

        ///  
        ///     Internal access to the parameters method without a demand
        /// 
        internal CngPropertyCollection ParametersNoDemand {
            get { 
                Contract.Ensures(Contract.Result() != null);
                return m_parameters; 
            } 
        }
 
        /// 
        ///     KSP to create the key in
        /// 
        public CngProvider Provider { 
            get {
                Contract.Ensures(Contract.Result() != null); 
                return m_provider; 
            }
 
            set {
                if (value == null) {
                    throw new ArgumentNullException("value");
                } 

                m_provider = value; 
            } 
        }
 
        /// 
        ///     Settings for UI shown on access to the key
        /// 
        public CngUIPolicy UIPolicy { 
            get { return m_uiPolicy; }
 
            [HostProtection(Action = SecurityAction.Demand, UI = true)] 
            [UIPermission(SecurityAction.Demand, Window = UIPermissionWindow.SafeSubWindows)]
            set { m_uiPolicy = value; } 
        }
    }
}

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

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