class/System/System.Security.Cryptography/Oid.cs

   1 //
   2 // Oid.cs - System.Security.Cryptography.Oid
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // (C) 2003 Motus Technologies Inc. (http://www.motus.com)
   8 // Copyright (C) 2005 Novell Inc. (http://www.novell.com)
   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 #if NET_2_0 && SECURITY_DEP
  31
  32 using System.Security.Cryptography.X509Certificates;
  33
  34 namespace System.Security.Cryptography {
  35
  36         public sealed class Oid {
  37
  38                 private string _value;
  39                 private string _name;
  40
  41                 // constructors
  42
  43                 public Oid ()
  44                 {
  45                 }
  46
  47                 public Oid (string oid)
  48                 {
  49                         if (oid == null)
  50                                 throw new ArgumentNullException ("oid");
  51
  52                         _value = oid;
  53                         _name = GetName (oid);
  54                 }
  55
  56                 public Oid (string value, string friendlyName)
  57                 {
  58                         _value = value;
  59                         _name = friendlyName;
  60                 }
  61
  62                 public Oid (Oid oid)
  63                 {
  64                         if (oid == null)
  65                                 throw new ArgumentNullException ("oid");
  66
  67                         _value = oid.Value;
  68                         _name = oid.FriendlyName;
  69                 }
  70
  71                 // properties
  72
  73                 public string FriendlyName {
  74                         get { return _name; }
  75                         set {
  76                                 _name = value;
  77                                 _value = GetValue (_name);
  78                         }
  79                 }
  80
  81                 public string Value {
  82                         get { return _value; }
  83                         set {
  84                                 _value = value;
  85                                 _name = GetName (_value);
  86                         }
  87                 }
  88
  89                 // internal stuff
  90
  91                 // Known OID/Names not defined anywhere else (by OID order)
  92                 internal const string oidRSA = "1.2.840.113549.1.1.1";
  93                 internal const string nameRSA = "RSA";
  94                 internal const string oidPkcs7Data = "1.2.840.113549.1.7.1";
  95                 internal const string namePkcs7Data = "PKCS 7 Data";
  96                 internal const string oidPkcs9ContentType = "1.2.840.113549.1.9.3";
  97                 internal const string namePkcs9ContentType = "Content Type";
  98                 internal const string oidPkcs9MessageDigest = "1.2.840.113549.1.9.4";
  99                 internal const string namePkcs9MessageDigest = "Message Digest";
 100                 internal const string oidPkcs9SigningTime = "1.2.840.113549.1.9.5";
 101                 internal const string namePkcs9SigningTime = "Signing Time";
 102                 internal const string oidMd5 = "1.2.840.113549.2.5";
 103                 internal const string nameMd5 = "md5";
 104                 internal const string oid3Des = "1.2.840.113549.3.7";
 105                 internal const string name3Des = "3des";
 106                 internal const string oidSha1 = "1.3.14.3.2.26";
 107                 internal const string nameSha1 = "sha1";
 108                 internal const string oidSubjectAltName = "2.5.29.17";
 109                 internal const string nameSubjectAltName = "Subject Alternative Name";
 110                 internal const string oidNetscapeCertType = "2.16.840.1.113730.1.1";
 111                 internal const string nameNetscapeCertType = "Netscape Cert Type";
 112
 113                 // TODO - find the complete list
 114                 private string GetName (string oid)
 115                 {
 116                         switch (oid) {
 117                                 case oidRSA:
 118                                         return nameRSA;
 119                                 case oidPkcs7Data:
 120                                         return namePkcs7Data;
 121                                 case oidPkcs9ContentType:
 122                                         return namePkcs9ContentType;
 123                                 case oidPkcs9MessageDigest:
 124                                         return namePkcs9MessageDigest;
 125                                 case oidPkcs9SigningTime:
 126                                         return namePkcs9SigningTime;
 127                                 case oid3Des:
 128                                         return name3Des;
 129                                 case X509BasicConstraintsExtension.oid:
 130                                         return X509BasicConstraintsExtension.friendlyName;
 131                                 case X509KeyUsageExtension.oid:
 132                                         return X509KeyUsageExtension.friendlyName;
 133                                 case X509EnhancedKeyUsageExtension.oid:
 134                                         return X509EnhancedKeyUsageExtension.friendlyName;
 135                                 case X509SubjectKeyIdentifierExtension.oid:
 136                                         return X509SubjectKeyIdentifierExtension.friendlyName;
 137                                 case oidSubjectAltName:
 138                                         return nameSubjectAltName;
 139                                 case oidNetscapeCertType:
 140                                         return nameNetscapeCertType;
 141                                 case oidMd5:
 142                                         return nameMd5;
 143                                 case oidSha1:
 144                                         return nameSha1;
 145                                 default:
 146                                         return _name;
 147                         }
 148                 }
 149
 150                 // TODO - find the complete list
 151                 private string GetValue (string name)
 152                 {
 153                         switch (name) {
 154                                 case nameRSA:
 155                                         return oidRSA;
 156                                 case namePkcs7Data:
 157                                         return oidPkcs7Data;
 158                                 case namePkcs9ContentType:
 159                                         return oidPkcs9ContentType;
 160                                 case namePkcs9MessageDigest:
 161                                         return oidPkcs9MessageDigest;
 162                                 case namePkcs9SigningTime:
 163                                         return oidPkcs9SigningTime;
 164                                 case name3Des:
 165                                         return oid3Des;
 166                                 case X509BasicConstraintsExtension.friendlyName:
 167                                         return X509BasicConstraintsExtension.oid;
 168                                 case X509KeyUsageExtension.friendlyName:
 169                                         return X509KeyUsageExtension.oid;
 170                                 case X509EnhancedKeyUsageExtension.friendlyName:
 171                                         return X509EnhancedKeyUsageExtension.oid;
 172                                 case X509SubjectKeyIdentifierExtension.friendlyName:
 173                                         return X509SubjectKeyIdentifierExtension.oid;
 174                                 case nameSubjectAltName:
 175                                         return oidSubjectAltName;
 176                                 case nameNetscapeCertType:
 177                                         return oidNetscapeCertType;
 178                                 case nameMd5:
 179                                         return oidMd5;
 180                                 case nameSha1:
 181                                         return oidSha1;
 182                                 default:
 183                                         return _value;
 184                         }
 185                 }
 186         }
 187 }
 188
 189 #endif