mcs/class/Mono.Security/Mono.Security.Authenticode/SoftwarePublisherCertificate.cs

   1 //
   2 // SoftwarePublisherCertificate.cs
   3 //      - Software Publisher Certificates Implementation
   4 //
   5 // Author:
   6 //      Sebastien Pouliot <sebastien@ximian.com>
   7 //
   8 // (C) 2003 Motus Technologies Inc. (http://www.motus.com)
   9 // (C) 2004 Novell (http://www.novell.com)
  10 //
  11
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System;
  34 using System.Collections;
  35 using System.Globalization;
  36 using System.IO;
  37 using System.Text;
  38
  39 using Mono.Security;
  40 using Mono.Security.X509;
  41
  42 namespace Mono.Security.Authenticode {
  43
  44         public class SoftwarePublisherCertificate {
  45
  46                 private PKCS7.SignedData pkcs7;
  47
  48                 public SoftwarePublisherCertificate ()
  49                 {
  50                         pkcs7 = new PKCS7.SignedData ();
  51                         pkcs7.ContentInfo.ContentType = PKCS7.Oid.data;
  52                 }
  53
  54                 public SoftwarePublisherCertificate (byte[] data) : this ()
  55                 {
  56                         if (data == null)
  57                                 throw new ArgumentNullException ("data");
  58
  59                         PKCS7.ContentInfo ci = new PKCS7.ContentInfo (data);
  60                         if (ci.ContentType != PKCS7.Oid.signedData) {
  61                                 throw new ArgumentException (
  62                                         Locale.GetText ("Unsupported ContentType"));
  63                         }
  64                         pkcs7 = new PKCS7.SignedData (ci.Content);
  65                 }
  66
  67                 public X509CertificateCollection Certificates {
  68                         get { return pkcs7.Certificates; }
  69                 }
  70
  71                 public ArrayList Crls {
  72                         get { return pkcs7.Crls; }
  73                 }
  74
  75                 public byte[] GetBytes ()
  76                 {
  77                         PKCS7.ContentInfo ci = new PKCS7.ContentInfo (PKCS7.Oid.signedData);
  78                         ci.Content.Add (pkcs7.ASN1);
  79                         return ci.GetBytes ();
  80                 }
  81
  82                 static public SoftwarePublisherCertificate CreateFromFile (string filename)
  83                 {
  84                         if (filename == null)
  85                                 throw new ArgumentNullException ("filename");
  86
  87                         byte[] data = null;
  88                         using (FileStream fs = File.Open (filename, FileMode.Open, FileAccess.Read, FileShare.Read)) {
  89                                 data = new byte [fs.Length];
  90                                 fs.Read (data, 0, data.Length);
  91                                 fs.Close ();
  92                         }
  93
  94                         // It seems that VeriSign send the SPC file in Unicode
  95                         // (base64 encoded) and Windows accept them.
  96                         if (data.Length < 2)
  97                                 return null;
  98
  99                         if (data [0] != 0x30) {
 100                                 // this isn't an ASN.1 SEQUENCE (so not legal)
 101                                 if (data [1] == 0x00) {
 102                                         // this could be base64/unicode (e.g. VeriSign)
 103                                         data = Convert.FromBase64String (Encoding.Unicode.GetString (data));
 104                                 }
 105                                 else {
 106                                         // default to base64/ascii
 107                                         data = Convert.FromBase64String (Encoding.ASCII.GetString (data));
 108                                 }
 109                         }
 110 #if DEBUG
 111                         using (FileStream fs = File.OpenWrite (filename + ".der")) {
 112                                 fs.Write (data, 0, data.Length);
 113                                 fs.Close ();
 114                         }
 115 #endif
 116                         return new SoftwarePublisherCertificate (data);
 117                 }
 118         }
 119 }