class/System.IdentityModel/System.IdentityModel.Tokens/EncryptedKeyIdentifierClause.cs

   1 //
   2 // EncryptedKeyIdentifierClause.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2006 Novell, Inc.  http://www.novell.com
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 using System;
  29 using System.Collections.Generic;
  30 using System.Xml;
  31 using System.IdentityModel.Policy;
  32
  33 namespace System.IdentityModel.Tokens
  34 {
  35         public sealed class EncryptedKeyIdentifierClause : BinaryKeyIdentifierClause
  36         {
  37                 public EncryptedKeyIdentifierClause (
  38                         byte [] encryptedKey, string encryptionMethod)
  39                         : this (encryptedKey, encryptionMethod, null)
  40                 {
  41                 }
  42
  43                 public EncryptedKeyIdentifierClause (
  44                         byte [] encryptedKey, string encryptionMethod,
  45                         SecurityKeyIdentifier identifier)
  46                         : this (encryptedKey, encryptionMethod, identifier, null)
  47                 {
  48                 }
  49
  50                 public EncryptedKeyIdentifierClause (
  51                         byte [] encryptedKey, string encryptionMethod,
  52                         SecurityKeyIdentifier identifier, string carriedKeyName)
  53                         : this (encryptedKey, encryptionMethod, identifier, carriedKeyName, null, 0)
  54                 {
  55                 }
  56
  57                 public EncryptedKeyIdentifierClause (
  58                         byte [] encryptedKey, string encryptionMethod,
  59                         SecurityKeyIdentifier identifier, string carriedKeyName,
  60                         byte [] derivationNonce, int derivationLength)
  61                         : base (encryptionMethod, encryptedKey, true, derivationNonce, derivationLength)
  62                 {
  63                         this.carried_key_name = carriedKeyName;
  64                         this.identifier = identifier;
  65                         this.enc_method = encryptionMethod;
  66                 }
  67
  68                 string carried_key_name, enc_method;
  69                 SecurityKeyIdentifier identifier;
  70
  71                 public string CarriedKeyName {
  72                         get { return carried_key_name; }
  73                 }
  74
  75                 public string EncryptionMethod {
  76                         get { return enc_method; }
  77                 }
  78
  79                 public SecurityKeyIdentifier EncryptingKeyIdentifier {
  80                         get { return identifier; }
  81                 }
  82
  83                 public byte [] GetEncryptedKey ()
  84                 {
  85                         return GetBuffer ();
  86                 }
  87
  88                 public bool Matches (byte [] encryptedKey, string encryptionMethod, string carriedKeyName)
  89                 {
  90                         if (encryptedKey == null)
  91                                 throw new ArgumentNullException ("encryptedKey");
  92                         byte [] buf = GetRawBuffer ();
  93                         if (encryptionMethod != this.enc_method ||
  94                             carriedKeyName != this.carried_key_name ||
  95                             encryptedKey.Length != buf.Length)
  96                                 return false;
  97                         for (int i = 0; i < buf.Length; i++)
  98                                 if (encryptedKey [i] != buf [i])
  99                                         return false;
 100                         return true;
 101                 }
 102
 103                 public override bool Matches (SecurityKeyIdentifierClause clause)
 104                 {
 105                         EncryptedKeyIdentifierClause e =
 106                                 clause as EncryptedKeyIdentifierClause;
 107                         return e != null && Matches (e.GetRawBuffer (), e.EncryptionMethod, e.CarriedKeyName);
 108                 }
 109
 110                 [MonoTODO]
 111                 public override string ToString ()
 112                 {
 113                         return base.ToString ();
 114                 }
 115         }
 116 }