mcs/class/System.Core/System.Security.Cryptography/CngKeyBlobFormat.cs

   1 //
   2 // System.Security.Cryptography.CngKeyBlobFormat
   3 //
   4 // Authors:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2008 Novell, Inc (http://www.novell.com)
   8 // Copyright (C) 2011 Juho Vähä-Herttua
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System;
  31
  32 namespace System.Security.Cryptography {
  33
  34         // note: CNG stands for "Cryptography API: Next Generation"
  35
  36         [Serializable]
  37         public sealed class CngKeyBlobFormat : IEquatable<CngKeyBlobFormat> {
  38
  39                 private string m_format;
  40
  41                 public CngKeyBlobFormat (string format)
  42                 {
  43                         if (format == null)
  44                                 throw new ArgumentNullException ("format");
  45                         if (format.Length == 0)
  46                                 throw new ArgumentException ("format");
  47
  48                         m_format = format;
  49                 }
  50
  51                 public string Format {
  52                         get { return m_format; }
  53                 }
  54
  55                 public bool Equals (CngKeyBlobFormat other)
  56                 {
  57                         if (other == null)
  58                                 return false;
  59                         return m_format == other.m_format;
  60                 }
  61
  62                 public override bool Equals (object obj)
  63                 {
  64                         return Equals (obj as CngKeyBlobFormat);
  65                 }
  66
  67                 public override int GetHashCode ()
  68                 {
  69                         return m_format.GetHashCode ();
  70                 }
  71
  72                 public override string ToString ()
  73                 {
  74                         return m_format;
  75                 }
  76
  77                 // static
  78
  79                 private static CngKeyBlobFormat opaqueTransportBlob;
  80                 private static CngKeyBlobFormat genericPrivateBlob;
  81                 private static CngKeyBlobFormat genericPublicBlob;
  82                 private static CngKeyBlobFormat eccPrivateBlob;
  83                 private static CngKeyBlobFormat eccPublicBlob;
  84                 private static CngKeyBlobFormat pkcs8PrivateBlob;
  85
  86                 public static CngKeyBlobFormat OpaqueTransportBlob {
  87                         get {
  88                                 if (opaqueTransportBlob == null)
  89                                         opaqueTransportBlob = new CngKeyBlobFormat ("OpaqueTransport");
  90                                 return opaqueTransportBlob;
  91                         }
  92                 }
  93
  94                 public static CngKeyBlobFormat GenericPrivateBlob {
  95                         get {
  96                                 if (genericPrivateBlob == null)
  97                                         genericPrivateBlob = new CngKeyBlobFormat ("PRIVATEBLOB");
  98                                 return genericPrivateBlob;
  99                         }
 100                 }
 101
 102                 public static CngKeyBlobFormat GenericPublicBlob {
 103                         get {
 104                                 if (genericPublicBlob == null)
 105                                         genericPublicBlob = new CngKeyBlobFormat ("PUBLICBLOB");
 106                                 return genericPublicBlob;
 107                         }
 108                 }
 109
 110                 public static CngKeyBlobFormat EccPrivateBlob {
 111                         get {
 112                                 if (eccPrivateBlob == null)
 113                                         eccPrivateBlob = new CngKeyBlobFormat ("ECCPRIVATEBLOB");
 114                                 return eccPrivateBlob;
 115                         }
 116                 }
 117
 118                 public static CngKeyBlobFormat EccPublicBlob {
 119                         get {
 120                                 if (eccPublicBlob == null)
 121                                         eccPublicBlob = new CngKeyBlobFormat ("ECCPUBLICBLOB");
 122                                 return eccPublicBlob;
 123                         }
 124                 }
 125
 126                 public static CngKeyBlobFormat Pkcs8PrivateBlob {
 127                         get {
 128                                 if (pkcs8PrivateBlob == null)
 129                                         pkcs8PrivateBlob = new CngKeyBlobFormat ("PKCS8_PRIVATEKEY");
 130                                 return pkcs8PrivateBlob;
 131                         }
 132                 }
 133
 134                 public static bool operator == (CngKeyBlobFormat left, CngKeyBlobFormat right)
 135                 {
 136                         if ((object)left == null)
 137                                 return ((object)right == null);
 138                         return left.Equals (right);
 139                 }
 140
 141                 public static bool operator != (CngKeyBlobFormat left, CngKeyBlobFormat right)
 142                 {
 143                         if ((object)left == null)
 144                                 return ((object)right != null);
 145                         return !left.Equals (right);
 146                 }
 147         }
 148 }