mcs/class/referencesource/System.IdentityModel/System/ServiceModel/Security/BinarySecretKeyIdentifierClause.cs

   1 //------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 //------------------------------------------------------------
   4
   5 namespace System.ServiceModel.Security
   6 {
   7     using System.IdentityModel;
   8     using System.IdentityModel.Tokens;
   9     using System.Runtime.CompilerServices;
  10
  11     [TypeForwardedFrom("System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")]
  12     public class BinarySecretKeyIdentifierClause : BinaryKeyIdentifierClause
  13     {
  14         InMemorySymmetricSecurityKey symmetricKey;
  15
  16         public BinarySecretKeyIdentifierClause(byte[] key)
  17             : this(key, true)
  18         {
  19         }
  20
  21         public BinarySecretKeyIdentifierClause(byte[] key, bool cloneBuffer)
  22             : this(key, cloneBuffer, null, 0)
  23         {
  24         }
  25
  26         public BinarySecretKeyIdentifierClause(byte[] key, bool cloneBuffer, byte[] derivationNonce, int derivationLength)
  27             : base(XD.TrustFeb2005Dictionary.BinarySecretClauseType.Value, key, cloneBuffer, derivationNonce, derivationLength)
  28         {
  29         }
  30
  31         public byte[] GetKeyBytes()
  32         {
  33             return GetBuffer();
  34         }
  35
  36         public override bool CanCreateKey
  37         {
  38             get { return true; }
  39         }
  40
  41         public override SecurityKey CreateKey()
  42         {
  43             if (this.symmetricKey == null)
  44                 this.symmetricKey = new InMemorySymmetricSecurityKey(GetBuffer(), false);
  45
  46             return this.symmetricKey;
  47         }
  48
  49         public override bool Matches(SecurityKeyIdentifierClause keyIdentifierClause)
  50         {
  51             BinarySecretKeyIdentifierClause that = keyIdentifierClause as BinarySecretKeyIdentifierClause;
  52
  53             // PreSharp
  54 #pragma warning suppress 56506
  55             return ReferenceEquals(this, that) || (that != null && that.Matches(this.GetRawBuffer()));
  56         }
  57     }
  58 }