130 lines
3.9 KiB
C#
130 lines
3.9 KiB
C#
//
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// SoftwarePublisherCertificate.cs
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// - Software Publisher Certificates Implementation
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//
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// Author:
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// Sebastien Pouliot <sebastien@ximian.com>
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//
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// (C) 2003 Motus Technologies Inc. (http://www.motus.com)
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// Copyright (C) 2004,2008 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.Globalization;
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using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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using Mono.Security;
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using Mono.Security.X509;
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namespace Mono.Security.Authenticode {
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public class SoftwarePublisherCertificate {
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private PKCS7.SignedData pkcs7;
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public SoftwarePublisherCertificate ()
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{
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pkcs7 = new PKCS7.SignedData ();
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pkcs7.ContentInfo.ContentType = PKCS7.Oid.data;
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}
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public SoftwarePublisherCertificate (byte[] data) : this ()
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{
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if (data == null)
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throw new ArgumentNullException ("data");
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PKCS7.ContentInfo ci = new PKCS7.ContentInfo (data);
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if (ci.ContentType != PKCS7.Oid.signedData) {
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throw new ArgumentException (
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Locale.GetText ("Unsupported ContentType"));
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}
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pkcs7 = new PKCS7.SignedData (ci.Content);
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}
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public X509CertificateCollection Certificates {
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get { return pkcs7.Certificates; }
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}
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public ArrayList Crls {
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get { return pkcs7.Crls; }
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}
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public byte[] GetBytes ()
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{
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PKCS7.ContentInfo ci = new PKCS7.ContentInfo (PKCS7.Oid.signedData);
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ci.Content.Add (pkcs7.ASN1);
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return ci.GetBytes ();
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}
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static public SoftwarePublisherCertificate CreateFromFile (string filename)
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{
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if (filename == null)
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throw new ArgumentNullException ("filename");
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byte[] data = null;
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using (FileStream fs = File.Open (filename, FileMode.Open, FileAccess.Read, FileShare.Read)) {
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data = new byte [fs.Length];
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fs.Read (data, 0, data.Length);
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fs.Close ();
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}
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// It seems that VeriSign send the SPC file in Unicode
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// (base64 encoded) and Windows accept them.
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if (data.Length < 2)
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return null;
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if (data [0] != 0x30) {
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// this isn't an ASN.1 SEQUENCE (so not legal), check for PEM/base64 encoding
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try {
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data = PEM (data);
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}
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catch (Exception ex) {
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throw new CryptographicException ("Invalid encoding", ex);
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}
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}
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#if DEBUG
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using (FileStream fs = File.OpenWrite (filename + ".der")) {
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fs.Write (data, 0, data.Length);
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fs.Close ();
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}
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#endif
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return new SoftwarePublisherCertificate (data);
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}
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const string header = "-----BEGIN PKCS7-----";
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const string footer = "-----END PKCS7-----";
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static byte[] PEM (byte[] data)
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{
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// this could be base64/unicode (e.g. VeriSign) otherwise default to ASCII
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string pem = (data [1] == 0x00) ? Encoding.Unicode.GetString (data) : Encoding.ASCII.GetString (data);
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int start = pem.IndexOf (header) + header.Length;
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int end = pem.IndexOf (footer, start);
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string base64 = ((start == -1) || (end == -1)) ? pem : pem.Substring (start, (end - start));
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return Convert.FromBase64String (base64);
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}
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}
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}
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