132 lines
4.0 KiB
C#
132 lines
4.0 KiB
C#
//
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// X509Helpers.cs: X.509 helper and utility functions.
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//
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// Authors:
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// Sebastien Pouliot <sebastien@ximian.com>
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// Martin Baulig <martin.baulig@xamarin.com>
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//
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// (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
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// Copyright (C) 2004-2006 Novell, Inc (http://www.novell.com)
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// Copyright (C) 2015 Xamarin, Inc. (http://www.xamarin.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.Text;
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using System.Threading;
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using System.Runtime.InteropServices;
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using Microsoft.Win32.SafeHandles;
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#if !MOBILE
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using System.Security.Permissions;
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#endif
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using Mono;
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namespace System.Security.Cryptography.X509Certificates
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{
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static partial class X509Helper
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{
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static ISystemCertificateProvider CertificateProvider => DependencyInjector.SystemProvider.CertificateProvider;
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public static X509CertificateImpl InitFromCertificate (X509Certificate cert)
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{
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return CertificateProvider.Import (cert, CertificateImportFlags.None);
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}
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public static X509CertificateImpl InitFromCertificate (X509CertificateImpl impl)
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{
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return impl?.Clone ();
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}
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public static bool IsValid (X509CertificateImpl impl)
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{
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return impl != null && impl.IsValid;
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}
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internal static void ThrowIfContextInvalid (X509CertificateImpl impl)
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{
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if (!IsValid (impl))
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throw GetInvalidContextException ();
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}
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internal static Exception GetInvalidContextException ()
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{
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return new CryptographicException (Locale.GetText ("Certificate instance is empty."));
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}
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public static X509CertificateImpl Import (byte[] rawData)
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{
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return CertificateProvider.Import (rawData);
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}
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public static X509CertificateImpl Import (byte[] rawData, SafePasswordHandle password, X509KeyStorageFlags keyStorageFlags)
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{
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return CertificateProvider.Import (rawData, password, keyStorageFlags);
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}
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public static byte[] Export (X509CertificateImpl impl, X509ContentType contentType, SafePasswordHandle password)
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{
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ThrowIfContextInvalid (impl);
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return impl.Export (contentType, password);
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}
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public static bool Equals (X509CertificateImpl first, X509CertificateImpl second)
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{
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if (!IsValid (first) || !IsValid (second))
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return false;
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bool result;
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if (first.Equals (second, out result))
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return result;
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var firstRaw = first.RawData;
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var secondRaw = second.RawData;
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if (firstRaw == null)
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return secondRaw == null;
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else if (secondRaw == null)
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return false;
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if (firstRaw.Length != secondRaw.Length)
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return false;
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for (int i = 0; i < firstRaw.Length; i++) {
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if (firstRaw [i] != secondRaw [i])
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return false;
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}
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return true;
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}
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// almost every byte[] returning function has a string equivalent
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// sadly the BitConverter insert dash between bytes :-(
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public static string ToHexString (byte[] data)
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{
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if (data != null) {
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StringBuilder sb = new StringBuilder ();
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for (int i = 0; i < data.Length; i++)
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sb.Append (data[i].ToString ("X2"));
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return sb.ToString ();
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}
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else
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return null;
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}
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}
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}
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